Knick Laboratory and Portable Meters · 2016-11-17 · ment capabilities of portable meters are very similar to those of laboratory meters. Nowadays, many portable meters provide

Laboratory and Portable Meters

Product Catalog

Knick. Always better.

2

3

Overview

Portable Meters

Portamess 913 (X) pH

High-quality, portable pH meter with data logger and interface for printer and PC.

Portamess 911 (X) pH

Basic unit for mobile high-precision pH measurement.

Portamess 913 (X) Cond

High-quality, portable conductivity meter with data logger and interface for printer and PC.

Portamess 911 (X) Cond

Basic unit for mobile high-precision conductivity measurement.

Portamess 913 Oxy

High-quality, portable dissolved-oxygen meter with data logger and interface for printer and PC.

Portamess 911 Oxy

Basic unit for mobile high-precision oxygen measurement.

Laboratory Meters

765 Laboratory pH Meter

with RS-232 interface and all features for ISO 9000 documentation.

766 Laboratory pH Meter

Standard pH meter for all applications in everyday lab routines.

703 Laboratory Conductivity Meter

for conductivity measurements with highest demands.

Perfection as a program.For mobile liquid measurement, Knick has developed the pioneering Portamess® Series for pH value, conductivityand saturation. In addition to a basic unit, a unit with real-time clock, data storage, and interface to PC is providedfor each process variable.Knick laboratory meters are available for pH and conductivity measurement. They stand for safety, reliable work-manship, and easy handling. No other pH meter is as easy to operate as the Knick Model 766 Laboratory pH Meter.The meter monitors itself as well as the pH sensor. Calibration is performed automatically using Knick Calimatic®.

Pro

ce

ss

va

ria

ble

sA

cc

es

so

rie

sF

un

ct

ion

s a

nd

fe

at

ure

s

4

Selection matrix / Table of contents

Selection matrix

pH measurement Conductivity measurement DO meas. pH meas. Cond.

mV/ORP measurement

Conductivity measurement

Salinity determination

TDS determination

Dissolved oxygen meas.

Temperature measurement/ compensation

Pressure compensation

Documentation to GLP/ISO 9000

PC interface

PC software included

Printer control directly from the meter

Data memory

Data logger

Date / clock function

Automatic self-test

Zone 1(0) application

Calimatic® automatic calibration

Automatic temp probe recognition

Sensoface® information on sensor status

Simultaneous display of primary value and temp

Trueline® analog recorder output

Sensor statistics

Water-proof to IP 66

Protective cover with short instructions

Auto switch-off

Field case

Matrix printer

Attachable stand with stirrer control

Immersion stirrer

P a g e 20 20 22 22 34 34 36 36 48 50 60 72 82

913

Xp

H

913

pH

913

Oxy

911

Oxy

765

766

703

911

Xp

H

911

pH

913

XCo

nd

913

Co

nd

911

XCo

nd

911

Co

nd

Portable battery meters Laboratory meters

5

Discourse

pH measurement in the lab and in the field 10

Portable Meters

pH/ORP Measurement 18

Portamess® 913 (X) pH 20


Sensors, Accessories 26–30

Conductivity Measurement 32

Portamess® 913 (X) Cond 34



Oxygen Measurement 46

Portamess® 913 Oxy 48



Laboratory Meters

pH/ORP Measurement 60

765 Laboratory pH Meter 60


Sensors, Accessories 66–70 / 77–80

Conductivity Measurement 82

703 Laboratory Conductivity Meter 82


pH

Cond

pH

Cond

Oxy

6

The Company

7

The name Knick has been recog-nized for outstanding quality inthe manufacture of electronicmeasuring instruments for morethan half a century. Back in 1945the company’s founder, engineerUlrich Knick, began with the manufacture of high-precisionzero-point-stabilized DC ampli-fiers. These enabled the pro-duction of reliable laboratory pHmeters and other precision measuring instrument.

Today, company policy still focu-ses on a high technical level anda highly innovative orientation.Every fifth employee works in Research and Development. A large number of patents and li-censing agreements are the re-sult.

The current production at Knickincludes pioneering instrumentsfor measurement and control. Agreat deal of emphasis is placedon EMC and explosion protec-tion, where the firm has made aname for itself by demonstratingits competence. For example,Knick also produces portable meters for hazardous-area applications.

Always better.

Knick is the market leader inmany specialized areas of meas-uring and control engineering,for example in the field of gal-vanic isolation, in pH measuringtechnology, and for loop-powered digital indicators.

The Knick product range doesnot include a single conventionalproduct. Each product providespatented features with substan-tial advantages for the customer.

Knick products are used through-out the chemical industry, in bio-technology and pharmaceuticalindustry, in food and beverageindustry, in system engineering,in water and waste-water treat-ment, for environmental protec-tion and industrial automation. Agents all over Europe and in themost important industrial coun-tries abroad ensure world-widedistribution of pioneering Knicktechnology.

Since 1993 Knick has been certified to ISO 9001.

Knick.

|1945First zero-point-stabi-lized modulated DCamplifier

|1956First laboratory pH meter with zero-point-stabilized Knick amplifier

|1958First zero pointstabilized chopperlesspH amplifier

|1960First transistorizedchopper amplifier formeasuring and controlengineering

|1964First Knick amplifierfor hazardous-area applications

|1964First DC transformer for passive isolation in measuring and control engineering

Knick. Chronology of Innovations.

|1979First microprocessor-controlled pH meterwith automatic elec-trode calibration

|1979First industrial pH meter with digital display for on-site mounting in hazar-dous locations with a Zone-0 input

|1980First electrodeless con-ductivity measuring system for hazardous-area applications withPTB-certified sensor

|1980First loop-powered digital indicator for mounting within hazardous locations

|1980First loop-powered DCtransformer for moun-ting within hazardouslocations

|1985First retractable probecontrol for fullyaut0omatic pH measu-re-ment

|1995First process analyzerfor simultaneous mea-surement of pH andconductivity in hazar-dous locations

|1996First portable meterfor hazardous-areaapplications withIP 66 protection

|1997First process analyzerwith broad-range power supply 20 ... 253 V AC/DC

|1998First terminal with electricalisolation

|1999First isolation amplifierin 12.5 mm modular case with broad-rangepower supply 20 ...253 V AC/DC and calibrated range selection

|2000First product line for liquid analysis withPROFIBUS®-PA inter-face and “Profile for Process Control Devi-ces”

8

The Company

|1965First zero-point-stabi-lized industrial pHtransmitters for ha-zardous-area applica-tions

|1967First portable pHmeter for hazardous-area applications (5000 operating hours without bat-tery replacement)

|1969First compactdigital pH meter

|1972First DC isolation amplifier from Knick for active isolation in measuring and con-trol engineering.

|1973First portable pH me-ter with digital displayand automatic sensorcontrol (2500 measure-ments without battery-replacement)

|1976First industrial pH transmitter for appli-cations in the maxi-mum danger area Zone 0

|1986First system-capable DC calibrators in theDM 2000 class

|1988Laboratory conductivitymeter with 4-ring elec-trode and a new circuitprinciple that for thefirst time enables measurements in the1 µS/cm ...1000 mS/cmrange with a single cell

|1991First loop-powered digital indicator withEMC to NAMUR

|1992First laboratory pH meter with completeself-monitoring inclu-ding electrode andEMC to NAMUR

|1992First analyzer line withEMC and user inter-face to NAMUR

|1995First portable pH meter with data logger and PC interface

|2001First modular processanalyzer in hygienicstainless steel enclo-sure

|2002First active isolation amplifier with 3-portisolation in 6 mm enclosure

|2002First portable meter formeasuring dissolvedoxygen with flow-freesensors

|2003First remote-calibra-tion probe with main-tenance-free ceramic sealing

|2003First measuring systemfor fully automatic pH measurement in hygienic locations

|2003First repeater powersupply in 6 mm enclosure

9

10

Discourse

pH measurement in the laband in the field

Requirements for laboratories are constantly becoming stricter.On the one hand, more and more measuring results have tobe obtained in shorter times andon the other measurement de-viations should become fewer.This also applies for pH measure-ments. The results should have at least two decimal places, bereproducible, documented and of course be prepared for furtherprocessing and archiving on aPC.

These tasks require a pH meterwhich the user can rely on andwhich also does the largest partof his work for him.

Knick set reliability and easyhandling as top priorities in thedevelopment of the Models 765and 766 laboratory pH meters.These pH meters support theuser’s work not only by proces-sing the measured values correct-ly, but also by providing an ope-rating concept which to a greatextent prevents handling errorsand systematic errors with mes-sages and intelligent routines.

The same requirements are oftenplaced on mobile measurementsin the field so that the measure-ment capabilities of portable meters are very similar to thoseof laboratory meters. Nowadays,many portable meters providethe same measurement accuracyas lab meters. In addition, themobile use generates particulardemands on handling and me-chanical characteristics, such asshape, size, robustness, tight-ness, etc.

As part of the Portamess® Series,Knick offers the portable pH meters 913 and 911 pH, whichcombine accuracy and flexibilityof a lab meter with an enclosuredesign specially developed forfield applications. In practice, the unit convinceswith a multitude of details: theprotective cover with short in-structions, the integrated quiverfor storing the electrode, the water-proof enclosure, and manymore. As an extraordinary fea-ture: Knick also offers hazardous-area variants of these units formeasurements even in Zone 0 locations.

The following article looks at the special requirements and pro-blems of pH measurement anddescribes the solutions providedby the respective Knick meters.

11

pH measurement

Problems with pH measurements

Measured value deviations (errors) cannot be avoided in any measuring task. Here, sta-tistical deviations (incidental deviations) are distinguished from systematic deviations (recurring deviations).

With pH measurements, most of the errors which are caused by the measuring equipment (pH meter and electrode) and its systematic structure should be counted as systematic devia-tions. The statistical deviationsare mainly caused by measuringequipment handling and opera-ting errors.

Systematic problemsPerfect condition of the meas-uring equipment – consisting of the pH electrode, temperatureprobe, pH meter, and also thebuffer solutions – is the basis for reliable measuring results. In practice, different influencesdo however cause changes tothe measuring equipment.

Impurities on the electrode

Besides other errors caused byimpurities, fault voltages on thereference electrode junction areparticularly frequent and influen-tial. These junction voltages canhave various causes. They can berelated to the process medium,also in particular to the pH value,and are variable. As a part of theelectrode voltage, they mostly remain unnoticed in a calibrationand are “incorporated” in the calibration. Because of their un-known origin, their dependanceon the process medium, andtheir variability, they still lead toerrors even after a calibration.

Junction voltages can only be recognized with comparativemeasurements using special solutions. They are not recogni-zed automatically. The pH meter cannot provide warnings or helpwhen there are fault voltages on the junction. Here, the userhas to rely on his own knowledge and cautionor advice. However, he can counteract the error-causing impuritieson the electrode withnumerous measures,such as cleaning, rinsing,etc.

On pH meters from Knick, Sensoface® will help you assessthe condition of the electrode.This automatic electrode moni-toring system provides the userwith information on the electro-de condition. The zero point, slope, and response time of the electrode and the calibra-tion timer are evaluated.

Three Sensoface® icons summa-rize the individual evaluations ofthese parameters.

– The electrode is in good condition.

– The electrode is stillusable, but shouldbe calibrated.

– The electrode should absolutely be checked and calibrated.

The zero, slope, and response time parameters can only be calculated during calibration,whereas the cal timer is evalu-ated during measurement. Themeter displays the evaluation ofall individual parameters in thediagnostics menu at the press ofa key.

If the Sensoface® icon does notreturn to the “good status” afteryou have taken the appropriatemeasures, for example calibra-tion, the electrode should be replaced.

Electrode wear No matter how well an electrodeis treated and cared for, it will always show signs of aging andwear at some stage. Aging andwear mainly depend on the meas-ured medium and the measuringtemperature and can affect theelectrode in different ways.

In the past, the user had to enterall calibration data in a logbookor a lab journal in order to assessthe aging process of the elec-trode. On the Model 765, the electrode statistics system storesthe zero, slope, and response time from the last three calibra-tion procedures with the respec-tive date and accompanying time. In adition, the data fromthe first calibration carried outwith the electrode on the lab pHmeter is stored. The user can use the electrode statistics to assess theperformance of the electrodeover its complete lifespan. Re-cords can be printed out for do-cumentation or the data trans-ferred to a PC.

12

Error-free status of themeter

The user does not have to assessthe general device status, onlythe calibration status. A modernlab or portable pH meter can in-form the user about the devicestatus. The meter must provideroutines which automaticallycheck all required criteria. The lab and portable meters fromKnick provide several self-testroutines which run automatical-ly at power-on. They check theoperability of the hardware aswell as the intactness of the de-vice software (firmware). The dis-play plays a special role: If, forexample, a digit segment failswithout being noticed, measuredvalues may be displayed incor-rectly. To prevent that, all displaysegments including the icons areswitched on during the displaytest. This allows an easy opticalinspection by the user.These self-monitoring features –Gaincheck® for Models 911/913and Fullcheck® for 765 Labora-tory pH Meter – ensure a relia-ble identification of device faults.Once the device self-test has been successfully concluded, theuser can assume that the meteris in full working order accordingto the tested criteria.

Frequent handling errorsA pH meter can measure accu-rately but it cannot prevent theuser from making handling er-rors. This includes errors like, for example, calibration with im-pure or spoilt buffers and alsonot calibrating the meter in time.A modern pH meter can, how-ever, help prevent handling er-rors with clear messages and astraightforward user guidance.

Calibration intervalsThe time intervals after which calibration should be carried outdepend on the measured mediumand the measuring temperatureand are based on empirical values.As a general rule, it is better tocalibrate the unit too early thantoo late. Users often forget to ca-librate the unit in time or, for ex-ample, after a shift change noone is sure when the last calibra-tion was carried out. Up to now, this problem couldonly be counteracted by applyingthe GLP recommendations (GoodLaboratory Practice). Calibrationshad to be documented in a log-book and calibration intervals had to be observed. This did not,however, guarantee that calibra-tion was carried out according tothese directions.

The cal timer on the 765 Labora-tory pH Meter and the 913 pHPortable Meter reminds the userwhen calibration is due. The timeinterval for the calibration can be preset. This interval should be sufficiently short taking the type of measured medium, themeasuring temperatures, and the qualitative requirements formeasuring results into considera-tion. Measurements in differentmedia with pH values and tempe-ratures which deviate greatlyfrom one another, for example,require shorter calibration inter-vals than measurements in mediawith similar pH values at similartemperatures. Once approx. 80 % of the set interval has ex-pired, the cal timer will switch the Sensoface® indicator from“good” to “average”. The metershould now be calibrated. Oncethe total interval has expired, theindicator is set to “poor”. Themeter should be calibrated nowat the latest.

This check reminds the user in good time when calibrationneeds to be carried out and allows him/her to concentrate fully on the actual measuringwork.

Perfect buffer solutionsOne basic requirement for correctpH measurements is using per-fect buffer solutions which havenot passed their expiry date.Here, we strongly advise the userto follow the GLP recommenda-tions and ensure that the buffersolutions used are always fresh,undiluted, and clean. Therefore,the pH electrode must never beimmersed directly in the bufferbottle. A sufficient amount ofbuffer must be filled in a cleanbeaker. Then the electrode canbe immersed in the solution.Anyone not observing these re-quirements will obtain unusablemeasurement results.

Discourse

13

There is, however, a simple solu-tion also to this problem. Knicksupplies buffer solutions in dis-posable bags as accessories. Thebuffer solutions are sufficient forexactly one calibration procedureand are sealed. After calibrationthey are simply disposed of. This guarantees perfect buffersolutions.

Calibration procedure Handling errors cannot be ruledout during calibration. The usercould, for example, leave out certain steps or mix up buffers.Here as well only strict followingof the GLP recommendationscould prevent errors. This is no longer a problem withthe Calimatic®. The user is guidedsafely through the calibrationprocedure. All necessary steps areindicated. The buffers can be pla-ced in any order. The Calimatic®

automatically assigns the buffersolution being used to the bufferset in the unit, measures the res-ponse time, calculates the zeroand slope of the electrode andmakes the necessary adjust-ments. The Sensoface® icons tell the user whether calibrationwas concluded successfully orwhether it needs to be repeated.

Calibration in the ex-pected range of the measured medium

To obtain measurement resultswith lowest possible measuredvalue deviations, it is importantto know the range of the ex-pected measured values on thepH scale. The slope of the electrode is pre-sumed to be linear. In practice,however, there are deviationsfrom the straight line. These deviations become smaller if a 2-point calibration incorporates(brackets) the pH range in whichmeasurements are being taken asclose as possible. For example, ifthe measured value is expectedto be between pH 5 and pH 6,calibration should be carried outwith pH 4.01 and pH 7.00 buf-fers.

Observing the calibrationand measuring tempera-ture

A pH value is only useful if it isgiven together with the tempera-ture of the measured medium.These values form a value pair.For best results, the calibrationand measuring temperatureshould be the same. If that is not the case, the temperaturedifference must be taken intoconsideration.

The slope is then adjusted accor-dingly by the meter.

The temperature sensitivity of themeasured medium is mostly un-known and cannot be taken intoconsideration in normal labora-tory conditions. The temperaturesensitivity of the buffer solutionsis known however and must betaken into consideration duringcalibration. The pH values for thedifferent temperatures used tohave to be read off the buffercontainers.

The temperature sensitivities ofseven commonly used buffer setsare stored in the lab and portablemeters from Knick. The calibra-tion temperature is calculated automatically or can be enteredmanually. The correct buffer val-ue for the temperature is thusautomatically taken over duringcalibration. The requirement forthis is of course that the buffersolutions are in perfect condition.

Documentation dutySince the introduction of ISO9000 at the latest it has been necessary not only to ensure per-fect condition of the measuringequipment but to also documentthis. This is also stipulated by GLPdirectives.

pH measurement

14

Discourse

Any documentation is time con-suming and incurs costs. To keepthese to a minimum for the user,the units with interface (765 Laboratory pH Meter and 913 (X)pH portable meter) provide re-cords of the last calibration, thedevice diagnostics, and the con-figuration. When a printer isconnected, these records can beprinted out at the push of a but-ton. If the unit is provided withthe electrode statistics option,the last three calibration proce-dures and the first calibration ofthe electrode can be displayedand printed out. The data can beread out via the RS 232 interfaceand processed further on a PC.

With the portable meters, youoften have to take many meas-urements in the field, which mustbe carefully documented. TheModel 913 (X) pH provides a storage for up to 100 measuredvalues with date and time. Backin the lab, these data can be readout on a PC or directly docu-mented with a printer. For thispurpose, Knick offers a matrixprinter for standard paper. Thisensures that the measured valuesremain legible for years since ble-aching thermal paper printoutsdo not satisfy the documentationrequirements in the most cases.

Conclusion The increasing requirements forlaboratories also burden the usermore and more and increase thenumber of tasks he has. This results in less time being left towork on the actual measuringtask. Knick supports the user with ela-borate and practical solutions inits lab and portable units. Manyfeatures are provided to ensureaccurate measurements conform-ing to GLP: Sensoface® providesinformation on the electrode status, the electrode statisticsshow the aging process of the electrode, Fullcheck® and Gain-check® check the meter, the caltimer monitors calibration inter-vals, the Calimatic® ensures thatcalibration is carried out correctlyand the record function providesthe necessary documentation. Using this kind of pH meter sim-plifies the user’s measuring taskssubstantially.

Knick pH meters do not changethe pH measurement and also do not make it completely free of deviations which in any case is physically impossible. But theymake pH measurement safer, easier, and comprehensible forthe user and with their consistentdesign concept, they help to pre-vent errors.

This design philosophy focusingon quality, accuracy, and easyhandling has also been imple-mented in the development ofthe conductivity and dissolvedoxygen meters from Knick. Theuser interfaces of these devicesare similar to those of the pHmeters and therefore as easy tohandle. With its high-quality lab and portable meters, Knick decisivelycontributes to making liquid ana-lysis more controlled and morereliable in laboratories as well asin the field.

15

pH measurement

pH

/Co

nd

/Oxy

Portable Meters

17

Portable Meters–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

pH/ORP Measurement–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Portamess® pH 18



Sensors, Accessories 26

Conductivity Measurement–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Portamess® Cond 32




Oxygen Measurement–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Portamess® Oxy 46




Overview

18

A clear concept. Theportable pH meters of thePortamess® pH Series.

Providing the functionalabundance of high-qualitybenchtop meters with easy, icon-guided opera-tion. Compact construc-tion. Comfortable hand-ling.

Robust enclosure, protectedagainst strong jets of water. Appealing design. Extremely flat.Constructed for a firm grip.

Applications

Most versatile hazardous and safe-area applications, such as inindustry, in the lab, for environ-mental protection, food proces-sing, as well as water and waste-water measurements.

Portamess® pH__________________________________________________________

Portable Meters

Original size

Warranty

3 years!Defects occurring within 3 years

from delivery date shall be remediedfree of charge at our plant (carriage

and insurance paid by sender).Sensors and accessories: 1 year

19

• Also available for use in hazar-dous area ATEX II2(1)G EEx ia IIC T4 ... T6, measurement incategory 1 / Zone 0 possible

• Calimatic® automatically recog-nizes the right buffer – auto-matic calibration at the pressof a button

• 8 buffer sets to choose from

• Simultaneous pH/mV and temperature display

• Automatic device test duringpower-on

• Sensoface®

electrode monitoring

• Temperature detection with automatic Pt 1000 /NTC 30 kOhm recognition

• 2000 operating hourson just 3 AA batteries

• Battery indicator

• Auto switch-off

• EMC design

_

pH/ORP measurement

The facts_______________________________

20

Portable Meters

The sockets

Robust. Water-tight. Gold-plated.

The carrying strap

Practical. Adjustable. Fixed directly to the meter.

The clock

Integrated real-time clock. With date.

The calibration

1-, 2-, and 3-point calibration.Calimatic® automatically recog-nizes the right buffer. 8 buffersets to choose from. Also man-ual calibration possible. With any two buffers.

Portamess® 913 pHFit for digital communication.Pioneering. Remote-controllable.

The keys

Smooth membrane keypad. Durable. Easy to clean. Nosticking or crusty deposits.

The display

Large (15 mm character height).Easy-to-read LC display. Anti-reflection natural glass. Scratch-proof and resistant to chemicals.Clear icons for operator guid-ance. Sensoface®: Electrode diagnostics with ”Smileys”.

The quiver

Integrated. Replaceable. Protectsthe electrode. Transparent. Easyto remove.

The enclosure

Blue. Ergonomic. Resistant to impact and chemicals. Diecastchassis. Water-tight (IP 66 pro-tection).

The cover

Protects against dirt and damage.Highly flexible lamellar joint. Can be folded back completely.Instructions on the back.

The hook

Fold-out. For hanging or standing up. Keeps both hands free for handling the electrode.

The memory

Manual storage. Direct access via 2 keys. 100 measured values including temperature, memorylocation number, time, and date.

The data logger

Unique. Automatic recording of measured values over longerperiods. Manual (with STO key),interval (e. g. every 30 min.) orevent-controlled (based on ameasured value difference – thisfunction prevents unnecessarymemory consumption). Com-bined with a PC, the meter cancontinuously record any amountof data.

Portamess® 913 (X) pH__________________________________________________________________________________________

21

pH/ORP measurement

The interface

Serial. Either for prin-ter or PC simply by turning plug around. Saves paperwork, prevents manual transcription errors. Supplies records forQM documentation (ISO 9000 and GLP). Portamess® 913 pHcan be completely remote controlled viainterface.

The software

Convenient. Paraly®

SW 109 transfer soft-ware. Transfers meas-ured values to the PC.

Comfortable docu-mentation and furtherprocessing (e. g. withMicrosoft Excel). Datalogger function. Re-mote control of all device functions.

Original size

Warranty3 years!

22

The cover

Protects against dirt and dam-age. Highly flexible lamellar joint.Can be folded back completely.Instructions on the back.

The hook

Fold-out. For hanging or stand-ing up. Keeps both hands freefor handling the electrode.

The sockets

Robust. Water-tight.Gold-plated.

Portamess® 911 pHThe basic unit for mobile pHmeasurement. Uncomplicated. Completely safe.

The keys


The display

Large (15 mm character height). Easy-to-read LC display. Antire-flection natural glass. Scratch-proof and resistant to chemicals.Clear icons for operator guid-ance. Sensoface®: Electrode diagnostics with ”Smileys”.

The quiver

Integrated. Replaceable. Protectsthe electrode. Transparent. Easyto remove.

The enclosure

Blue. Ergonomic. Resistant to impact and chemicals. Diecastchassis. Water-tight (IP 66 pro-tection).

The carrying strap


The calibration

1-, 2-, and 3-point calibration.Calimatic® automatically recog-nizes the right buffer. 8 buffersets to choose from. Also man-ual calibration possible. With any two buffers.

Portamess® 911 (X) pH__________________________________________________________________________________________

Portable Meters

23

pH/ORP measurement

Original size

Warranty3 years!

24

Portable Meters

Specifications Portamess® 913 (X) pH _________________________________________________________________________________

Portamess® 913 (X) pH l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ranges pH: –2.00 ... +16.00; mV: –1300 ... +1300; ºC: –20.0 ... +120.0l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Accuracy (± 1 count) pH: < 0.01; mV: < 0.1 % meas.val. ±0.3 mV; ºC: < 0.3 Kl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Electrode standardization 1-, 2-, or 3-point calibration, Calimatic® automatic calibration and buffer identification

(German patent 29 37 227) 8 buffer sets to choose from*) see table, also manual calibration possible

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temperature compensation Pt 1000 / NTC 30 kOhm (automatic recognition at power-on) or manuall–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC directive 89/336/EECl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC standard EN 61326 / VDE 0843 Part 20: 2002-3l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Explosion protection II2(1)G EEx ia IIC T4 ... T6 according to EC Directive 94 / 9 / EC, PTB 01 ATEX 2162 X(for versions only)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Device self-test Automatic at power-onl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data retention Parameters and calibration data > 10 years (EEPROM)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ambient conditions Operating/ambient temp –10 ... +55 ºC; Transport and storage temp –10 ... +70 ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Display LC display 67 x 67 mm, character height 15 mm; measured value display: pH, mV, ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 3 alkaline AA batteries, autom. switch-off after 1 h or 12 h, selectablel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Operating time 2000 h with 3 AA cellsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Enclosure Material: PA, IP 66 protected, with integrated electrode quiver l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions 133 x 160 x 30 mm (W x H x D)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Weight Approx. 560 g including batteriesl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data memory 100 memory locations: pH/mV, ºC, time and datel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Clock Integrated real-time clock with datel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data logger*) 100 data records, manual, interval, or event-controlled recordingl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface RS 232C, serial, bidirectional, asynchronous, 600 ... 9600 bauds, configurable as printer

or computer interface, data transfer for QM documentation (ISO 9000 and GLP).l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface cable Length 2 m, universal plug, either for PC or printer connectionl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Software SW 109 transfer software: Recording of measurement data, memory contents and device

records in tabular form, allows entering notes for each measured value (e. g. tag number),data transfer to other Windows applications (e. g. Excel), data-logger function, remote control of all device functions, included in supply. Control of Model 913 pH is integrated in the automation software for lab meters “labworldsoft“ (Fisher Scientific) for display and control of device functions of Version 4.0 or higher.

*) Configurable

25

pH/ORP measurement

Specifications Portamess® 911 (X) pH _________________________________________________________________________________

Portamess® 911 (X) pH l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ranges pH: –2.00 ... +16.00; mV: –1300 ... +1300; ºC: –20.0 ... +120.0l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Accuracy (± 1 count) pH: < 0.01; mV: < 0.1 % meas.val. ±0.3 mV; ºC: < 0.3 Kl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Electrode standardization 1-, 2-, or 3-point calibration, Calimatic® automatic calibration and buffer identification

(German patent 29 37 227) 8 buffer sets to choose from*) see table, also manual calibration possible

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temperature compensation Pt 1000 / NTC 30 kOhm (automatic recognition at power-on) or manuall–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC directive 89/336/EECl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC standard EN 61326 / VDE 0843 Part 20: 2002-3l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Explosion protection II2(1)G EEx ia IIC T4 ... T6 according to EC Directive 94 / 9 / EC, PTB 01 ATEX 2162 X(for versions only)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Self-test Automatic at power-onl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data retention Parameters and calibration data > 10 years (EEPROM)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ambient conditions Operating/ambient temp –10 ... +55 ºC; Transport and storage temp –10 ... +70 ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Display LC display 67 x 67 mm, character height 15 mm; measured value display: pH, mV, ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 3 alkaline AA batteries, autom. switch-off after 1 hl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Operating time 2000 h with 3 AA cellsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Enclosure Material: PA, IP 66 protected, with integrated electrode quiver l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions 133 x 160 x 30 mm (W x H x D)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Weight Approx. 560 g including batteries

*) Configurable

Buffer setsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Buffer set – 00 – Knick technical buffers: pH 2.00/4.01/7.00/9.21Buffer set – 01 – Mettler-Toledo (Ingold) technical buffers: pH 2.00/4.01/7.00/9.21Buffer set – 02 – Merck, Riedel: pH 2.00/4.00/7.00/9.00/12.00Buffer set – 03 – DIN 19 267: pH 1.09/4.65/6.79/9.23/12.75Buffer set – 04 – Ciba (94): pH 2.06/4.00/7.00/10.00Buffer set – 05 – NIST: pH 1.68/4.00/7.00/10.01/12.46Buffer set – 06 – DIN 19 266 and NIST (NBS): pH 1.679/4.006/6.865/9.180Buffer set – 07 – HACH: pH 4.00/7.00/10.18

26

Portable Meters

Combination pH electrodes SE 101 SE 102 SE 104l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Temperature probe Pt 1000 Pt 1000 –l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Body material Plastic (PEEK) Glass Plastic (PEEK)l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Body length 110 mm 110 mm 99 mml–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Body diameter 12 mm 12 mm 6 ... 16 mml–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Junction 2-hole junction Ceramic Hole junctionl–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Electrolyte Polymer 3 mol/ I KCI, refillable Polymerl–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––pH measurement range 0 … 14 0 … 14 2 … 11l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Temperature range 0 … 80 °C 0 … 80 °C 0 … 80 °Cl–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Recommended temp probe Integrated Integrated ZU 0156l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Remarks – – Puncture electrode

Order No. SE 101 SE 102 SE 104

Specifications Combination pH electrodes_________________________________________________________________________________

Combination pH electrodes for lab and field units

The Model SE 102 with glass body is an inexpensive combination electrode with Pt 1000 temperature probe and refillable electrolyte. For use in rougher environments, Knick offers the SE 101 electrode with plastic body. It is alsoequipped with an integrated Pt 1000 temperature probe and gel electrolyte. In addition, Knick also offers the SE 104puncture electrode. This gel-filled combination electrode is particularly robust and insensitive to pollution. Therefore, it is suited especially for measurements in semi-solid substances such as meat or cheese. The sensors are equippedwith a handy electrode cap with O-ring, which securely fixes the sensor in the quiver of the Models 913 pH and 911 pH.

27

pH/ORP measurement

Order No.–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Portamess® 913 pH With clock, data memory, data logger, remote interface, as well as 913 pHParaly® SW 109 transfer software and interface cable, includingbatteries, electrode quiver, and carrying strap, without electrode.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Portamess® 913 X pH - unit with clock, data memory, data logger, remote interface 913 X pH

as well as Paraly® SW 109 transfer software and interface cable, including batteries, electrode quiver, and carrying strap, without electrode.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Portamess® 911 pH Unit including batteries, electrode quiver, and carrying strap, 911 pH

without electrode.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Portamess® 911 X pH - unit including batteries, electrode quiver, and carrying strap, 911 X pH

without electrode.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH/Pt 1000 combination Plastic body, length 110 mm SE 101

electrode

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH/Pt 1000 combination Glass body, length 110 mm SE 102

electrode

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Combination pH puncture Plastic body, length 99 mm SE 104

electrode

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH/Pt 1000 combination For measurements in hazardous areas Zone 0, including ZU 6979

electrode equipotential bonding cable

Product line Portable pH meters and combination pH electrodes__________________________________________________________________________________

28

Portable Meters

Order No.–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

pH-Set A For measurement in generally watery media ( e. g. waste water, ZU 0510aquariums, swimming pools) and in water-based varnishes, paints, emulsions and suspensions. Suitable for field measurements, chang- ing temperature and temperature-compensated measurements. Robust field case for meter and electrode including SE 101 combina-tion pH/Pt 1000 electrode (plastic body), one bag each of Knick tech-nical buffer solutions pH 4, 7, 9 and replacement electrode quiver.

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH-Set B For measurement in generally watery media, biological media, photo- ZU 0511

graphic chemicals, hot alkaline solutions, media containing sulfids,corrosive acid and alkaline solutions. For extreme pH values, high temperatures, temperature-compensated and high-precision measurements. Robust field case for meter and electrode including SE 102 pH/Pt 1000 combination electrode (glass body), one bag each of Knicktechnical buffer solutions pH 4, 7, 9 and replacement electrode quiver.

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH-Set C For puncture measurements (including in foodstuffs such as meat, ZU 0512

fruit, and milk products). Also suitable for measuring soil samples. Robust field case for meter and electrode including SE 104 pHpuncture electrode, one bag each of Knick technical buffer solutions pH 4, 7, 9 and replacement electrode quiver.

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Electrode quiver 5 quivers, as replacement, for leak-proof storage of electrodes ZU 0262

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Robust field case For meter and sensor ZU 0277

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Lab printer With the Lab Printer, you can document your measured values either ZU 0244

at the press of a key or timer-controlled. Also records for QM docu-mentation to ISO 9000 and GLP can be printed out with a singlekeystroke. The printer is equipped with a replaceable ribbon cartridgeand prints on standard paper.

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Printer paper For ZU 0244 Lab Printer, 5 rolls ZU 0249

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ink ribbon For ZU 0244 Lab Printer, 5 ribbons ZU 0250

Product line Accessories__________________________________________________________________________________

29

pH/ORP measurement

Order No.–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Pt 1000 temperature For fast response temperature measurements: stainless steel, ZU 6959 probe –10 ... +100 ºC), accuracy class A to IEC 751

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Pt 1000 temperature For fast response temperature measurements, with tilted tip ZU 0156

probe for puncture measurements in semi-solid substances: glass, 0 ... +80 ºC, pH 0 ... 14, accuracy class A to IEC 751

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration buffer set With Knick technical buffer solutions, 250 ml each of pH 4.01, ZU 0261

pH 7.00, pH 9.21, and KCI solution

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration buffer set With standard buffer solutions to DIN 19266 and NIST (NBS), ZU 6941

250 ml each of pH 4, pH 7, and KCI solution

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––KCI solution 250 ml bottle ZU 0062

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Knick technical buffers pH 4.01 (set with 30 bags for one calibration each) ZU 0263

l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH 7.00 (set with 30 bags for one calibration each) ZU 0264 l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH 9.21 (set with 30 bags for one calibration each) ZU 0265 l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH 4.01 (1000 ml) ZU 0200l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH 7.00 (1000 ml) ZU 0201l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH 9.21 (1000 ml) ZU 0202

Product line Sensors and buffer solutions__________________________________________________________________________________

30

Portable Meters

Certificates of Conformity_________________________________________________________________________________

print preview

31

pH/ORP measurement

Two perfect units.The portable conductivitymeters of the Portamess®

910 Cond Series.

Providing the functionalabundance of high-qualitybenchtop meters with easy,icon-guided operation.Compact construction.Comfortable handling.

Versatile. Elaborate. Two versionsfor reliable conductivity measure-ment. Robust enclosure. Protected against strong jets ofwater. Appealing design. Flat.Constructed for a firm grip.

Applications

Most versatile hazardous and safe-area applications, such as inindustry, in the lab, for environ-mental protection, food process-ing, as well as water and waste-water measurements.

Portamess® Cond__________________________________________________________

32

Portable Meters

Original size

Warranty




• Also available for use in hazardous area ATEX II2(1)G EEx ia IIC T4 ... T6, measure-ment in category 1/ Zone 0possible

• Suitable for 2- and 4-electrode sensors

• Measurement of conductivity and temperature

• Determination of salinity and TDS (Total Dissolved Solids)

• Temperature compensation linear or nonlinear for naturalwaters to EN 27888

• Sensor standardization by entry of cell constant

• Automatic sensor standardiza-tion with KCl solutions

• Sensor standardization withany solutions (conductivitystandards)

• Automatic device test duringpower-on

• 1000 operating hours on just 3 AA batteries

• Auto switch-off


• EMC design

The facts_______________________________

33


34

Portable Meters

The carrying strap


The sockets


The clock

Integrated real-time clock. With date.

The memory

Manual storage. Direct access via 2 keys. 100 measured valuesincluding temperature, memorylocation number, time, and date.

The data logger

Unique. Automatic recording of measured values over longerperiods. Manual (with STO key),interval (e. g. every 30 min.) orevent-controlled (based on ameasured value difference – thisfunction prevents unnecessarymemory consumption). Com-bined with a PC, the meter cancontinuously record any amountof data.

The interface

Serial. Either for printer or PC bysimply turning the plug around.Saves paper work. Prevents manual transcription errors. Supplies records for QM docu-mentation (ISO 9000 and GLP).The Model 913 Cond can becompletely remote-controlled via interface, e. g. for computer-controlled data accquisition andlab automation.

Portamess® 913 Cond SeriesPioneering. Remote-control-lable. Fit for digital communi-cation.

The keys

Smooth membrane keypad. Durable. Easy to clean. No sticking or crusty deposits.

The display

Large (15 mm character height).Easy-to-read LC display. Anti-reflection natural glass. Scratch-proof and resistant to chemicals.Clear icons for operator guid-ance. Sensoface® sensor diag-nostics with ”Smileys”.

The quiver

Integrated. Replaceable. Protects the sensor. Transparent.Easy to remove.

The enclosure

Blue. Ergonomic. Resistant to impact and chemicals.Diecast chassis. Water-tight (IP 66 protection).

The cover

Protects against dirt and damage.Highly flexible lamellar joint. Can be folded back completely.Instructions on the back.

The hook

Fold-out. For hanging or standingup. Keeps both hands free forhandling the sensor.

Portamess® 913 (X) Cond__________________________________________________________________________________________

35


The software

Convenient. Paraly® SW109 transfer software.Transfers measured values to the PC.

Uncomplicated documen-tation and further proces-sing (e. g.with MicrosoftExcel). Data logger func-tion. Remote control of all device functions.

Original size

Warranty3 years!

36

Portable Meters

The cover

Protects against dirt and dam-age. Highly flexible lamellar joint.Can be folded back completely.Instructions on the back.

The hook

Fold-out. For hanging or stand-ing up. Keeps both hands freefor handling the sensor.

The carrying strap


The sockets

Robust. Water-tight.Gold-plated.

Portamess® 911 Cond SeriesBasic unit for mobile conduc-tivity measurement. Clear. Uncomplicated.

The keys


The display

Large (15 mm character height).Easy-to-read LC display. Anti-reflection natural glass. Scratch-proof and resistant to chemicals.Clear icons for operator guid-ance.

The quiver

Integrated. Replaceable. Protects the sensor. Transparent.Easy to remove.

The enclosure

Blue. Ergonomic. Resistant to impact and chemicals. Diecastchassis. Water-tight (IP 66 protection).

Portamess® 911 Cond__________________________________________________________________________________________

Warranty3 years!

37


_

Original size

38

Portable Meters

Specifications Portamess® 913 (X) Cond _________________________________________________________________________________

Portamess® 913 (X) Condl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ranges Conductivity: 0.01 µS/cm ... 1000 mS/cm (depending on sensor)

Temperature: – 20.0 ... +120 °CSalinity: 0.0 ... 45.0 g/kg (0 ... 30 °C)TDS: 0 ... 1999 mg/ l (10 ... 40 °C)

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Accuracy (± 1 count) Conductivity: < 0.5 % meas. val. (for > 500 mS/cm < 1 % meas. val.)

Temperature: < 0.3 Kl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Sensor standardization Direct entry of cell constant, autom. determination of cell constant with KCI solution

0.01 or 0.1 mol /l, sensor standardization with any known solutionsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Cell constant 0.010 ... 199.9 cm–1 (adjustable)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temp compensation*) Without / linear characteristic: 0.01 ... 9.99 %/°C / nonlinear characteristic for ultrapure

water and natural waters to EN 27888l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC directive 89/336/EECl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC standard EN 61326 / VDE 0843 Part 20: 2002-3l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Explosion protection II2(1)G EEx ia IIC T4 ... T6 according to Directive 94/9/EC, PTB 02 ATEX 2161(Only for versions)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Self-test Automatic at power-onl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data retention Parameters and calibration data > 10 years (EEPROM)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ambient conditions Operating/ambient temp –10 ... +55 ºC; Transport and storage temp –10 ... +70 ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Display LC display 67 x 67 mm, character height 15 mm; measured value display: mg/l, %, ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 3 alkaline AA batteries, autom. switch-off after 1 h or 12 h, selectablel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Operating time Approx. 1000 h with 3 AA cellsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Enclosure Material: PA, IP 66 protected, with integrated sensor quiver l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions 133 x 160 x 30 mm (W x H x D)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Weight Approx. 560 g including batteriesl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Clock Integrated real-time clock with datel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data logger*) 100 data records, manual, interval-controlled, 5 s ... 60 min,

event-controlled 0.00 µS ... 1000 mSl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface RS 232 C, serial, bidirectional, asynchronous, 600 ... 9600 bauds, data transfer for QM

documentation (ISO 9000 and GLP).l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface cable Length 2 m, universal plug, either for PC or printer connectionl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Software SW 109 transfer software: Recording of measurement data, memory contents and device

records in tabular form, allows entering notes for each measured value (e. g. tag number),Transfer of data to other Windows applications (e. g. Excel), included in supply. Control of Model 913 Cond is integrated in the automation software for lab meters “labworldsoft” (Fisher Scientific) for display and control of device functions of Version 4.0 or higher.

39


Specifications Portamess® 911 (X) Cond _________________________________________________________________________________

Portamess® 911 (X) Condl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ranges Conductivity: 0.01 µS/cm to 1000 mS/cm (depending on sensor)

Temperature: – 20.0 ... +120 °CSalinity: 0.0 ... 45.0 g/kg (0 ... 30 °C)TDS: 0 ... 1999 mg/l (10 ... 40 °C)

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Accuracy (± 1 count) Conductivity: < 0.5 % meas. val. (for > 500 mS/cm < 1 % meas. val.)

Temperature: < 0.3 Kl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Sensor standardization Direct entry of cell constant, autom. determination of cell constant with KCI solution

0.01 or 0.1 mol /l, sensor standardization with any known solutionsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Cell constant 0.010 ... 199.9 cm–1 (adjustable)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temp compensation*) Without / linear characteristic: 0.01 ... 9.99 %/°C nonlinear characteristic for ultrapure

water and natural waters to EN 27888l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC directive 89/336/EECl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC standard EN 61326 / VDE 0843 Part 20: 2002-3l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Explosion protection II2(1)G EEx ia IIC T4 ... T6 according to Directive 94/9/EC, PTB 02 ATEX 2161(Only for versions)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Self-test Automatic at power-onl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data retention Parameters and calibration data > 10 years (EEPROM)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ambient conditions Operating/ambient temp –10 ... +55 ºC; Transport and storage temp –10 ... +70 ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Display LC display 67 x 67 mm, character height 15 mm; measured value display: mg/l; %, Cl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 3 alkaline AA batteries, autom. switch-off after 1 hl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Operating time Approx. 1000 h with 3 AA cellsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Enclosure Material: PA, IP 66 protected, with integrated sensor quiverl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions 133 x 160 x 30 mm (W x H x D)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Weight Approx. 560 g including batteries

*) Configurable

40

Portable Meters

Conductivity sensors SE 202 SE 204 ZU 6985l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Number of electrodes 2 4 4l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Body Stainless steel 1.4571 Epoxy, black GlassElectrode material Stainless steel 1.4571 Graphite Platinum, barel–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Body length 120 mm 120 mm 110 mml–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Body diameter 12 mm 15.3 mm Tube 16 mml–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Temperature probe NTC (30 kOhm): NTC (30 kOhm): Pt 1000:

–5 ... +100 ºC –5 ... +100 ºC –20 ... +100 ºCl–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Immersion depth Min.: 30 mm, max.: Min.: 36 mm, max.: Min. 60 mm

Total length incl. cable Total length incl. cable Max. 80 mml–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Pressure resistance 2 bars 2 bars 2 barsl–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Cell constant 0.100 cm–1 ±2 % 0.475 cm–1 ±1.5 % 1.19 cm–1 ±1 %l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Ranges 0,01 ... 200 µS/cm 1 µS/cm ... 500 mS/cm 1 µS/cm ... 1000 mS/cml–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Remarks Incl. flow cell – –

Order No. SE 202 SE 204 ZU 6985

Specifications Conductivity sensors_________________________________________________________________________________

41


Order No.–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Portamess® 913 Cond Unit with clock, data memory, data logger, remote interface, 913 Cond

as well as Paraly® SW 109 transfer software and interface cable, including batteries, sensor quiver, and carrying strap, without sensor.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Portamess® 913 X Cond -unit with clock, data memory, data logger, remote interface 913 X Cond

as well as Paraly® SW 109 transfer software and interface cable, including batteries, sensor quiver, and carrying strap, without sensor.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Portamess® 911 Cond Unit including batteries, sensor quiver, and carrying strap, 911 Cond

without sensor.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Portamess® 911 X Cond -unit including batteries, sensor quiver, and carrying strap, 911 X Cond

without sensor.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––2-electrode sensor With integrated temperature probe (NTC 30 kOhm), stainless SE 202

steel body Incl. flow cell. For measurement in low-conductivity solutions such as ultrapure water and boiler feed water, e. g. for monitoring water desalination plants.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––4-electrode sensor With integrated temperature probe (NTC 30 kOhm), epoxy body. SE 204

For measurement in natural waters such as surface water or drinking water, in aqueous solutions such as acid and alkaline solutions and for salinity determination of sea water.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––4-electrode sensor With glass body (ZU 0290 adapter required). The sensor functions ZU 6985

reliably over a wide conductivity range from < 1.00 µS/cm to > 1000 mS/cm and is equipped with a quick-reacting Pt 1000temperature probe. It is provided with a glass /platinum measuringsystem with an easy-to-replace KPG® tube. It is simple to clean and requires no platinization. The glass body makes it suitable forlaboratory applications.

Product line Portable conductivity meters and conductivity sensors_________________________________________________________________________________

42

Portable Meters

Order No.–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Cond-Set A For measurement in natural waters such as surface water or drinking ZU 0534water, in aqueous solutions such as acid and alkaline solutions and for salinity determination of sea water. Robust field case for meter,universally applicable SE 204 4-electrode sensor with integratedstemperature probe and replacement sensor quiver.

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Cond-Set B For measurement in low-conductivity solutions such as ultrapure ZU 0532

water and boiler feed water, e. g. for monitoring water desalinationplants.Robust field case for meter, SE 202 2-electrode sensor with integrated temperature probe, flow cell, and replacement sensor quiver.

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Sensor quiver 5 quivers, for leak-proof storage of sensors ZU 0262

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Robust field case For meter and sensor ZU 0277

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Lab printer With the Lab Printer, you can document your measured values either ZU 0244

at the press of a key or timer-controlled. Also records for QM docu-mentation to ISO 9000 and GLP can be printed out with a singlekeystroke. The printer is equipped with a replaceable ribbon cartridgeand prints on standard paper.

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Printer paper For ZU 0244 Lab Printer, 5 rolls ZU 0249

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ink ribbon For ZU 0244 Lab Printer, 5 ribbons ZU 0250


43


Order No.–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Conductivity standard For determination and checking of cell constants ZU 6945(1 ampoule for producing 1000 ml 0.1 mol/ l NaCl solution) l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––For determination and checking of cell constants. Conductivity ZU 034812.88 mS/cm ±1 % (0.1 mol/l KCl), 250 ml solution, ready for usel––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––For determination and checking of cell constants. Conductivity ZU 03491413 µS/cm ±1 % (0.01 mol/l KCl), 250 ml solution, ready for usel––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––For determination and checking of cell constants. Low ZU 0350conductivity 15 µS/cm ±5 %, 300 ml solution, ready for use

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––KPG® tube For ZU 3985 4-electrode sensor, incl. O-ring ZU 0180

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Replacement flow cell For SE 202 2-electrode sensor ZU 0284

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Adapter For connecting a conductivity sensor with 2 banana plugs ZU 0289

to a meter of the Portamess® 910 Cond Series l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––For connecting the ZU 6985 4-electrode sensor to a meter of the ZU 0290Portamess® 910 Cond Series

Product line Calibration solutions, spare parts, and further accessories__________________________________________________________________________________

44

Portable Meters

Certificates of Conformity_________________________________________________________________________________

print preview

45


Reliable portable measure-ment of dissolved oxygen– precise and convenient.

Compact portable unitsproviding the functionalabundance of high-qualitybenchtop meters. The spe-cially designed sensors re-quire no flow and providehighly accurate values.Thanks to the continuouspolarization of the sensors,they are always ready touse.

Icon-guided operation. Easyhandling.Water-proof enclosure, speciallydeveloped for field applications.Appealing design. Extremely flat.Constructed for a firm grip.

Applications

Most versatile applications, suchas in industry, for environmentalprotection, food processing, aswell as water or waste-water treatment.

Portamess® Oxy__________________________________________________________

46

Portable Meters

Original sizeWarranty




• Measurement with flow-freeSE 300 and SE 301 DO sensors– stirrer not required

• Automatic calibration in air (in integrated calibrationchamber) with one-buttonoperation

• Automatic correction of temperature and pressure influences

• Continuous polarization of sensor for immediate readiness

• SE 300 and SE 301 sensors,maintenance-free

• Lab/field measurements withSE 300 sensor – immersionmeasurements with SE 301

• Comparative measurements orperformance checks of processsensors by means of adaptercable

• Ability to enter the salt content for correcting the solubility function

• Zero calibration not requiredfor Knick SE 300/301 sensors,possible for sensors with offset

• Cal timer

• Simultaneous display of dissolved oxygen and tem-perature

• Display of oxygen saturation or concentration

• Switch-on test with displaycheck


• 1000 operating hours on just3 AA batteries

• Auto switch-off (polarizationvoltage of sensor is not switched off)

• Storage of 200 measured values with date and time

• Data logger

_

The facts_________________________________________________________

47

DO measurement

48

Portable Meters

The calibration

Automatic calibration in air (inintegrated calibration chamber)with one-button operation.

The hook

Fold-out. For hanging or stan-ding up. Keeps both hands freefor handling the sensor.

The carrying strap


The sockets


The clock

Integrated. With date. Switchableto US time and date format.

The memory

200 measured values with time, date, and index for the AutoRead function for reproducible measurements with drift control.

Portamess® 913 OxyFit for digital communication.Pioneering. Remote-controllable.

The keys


The display

Large, easy-to-read LC display(67 x 35 mm). Antireflection natural glass. Scratch-proof andresistant to chemicals. Clearicons for operator guidance.Sensoface®: Sensor diagnosticswith ”Smileys”.

The quiver

Integrated. Transparent. Re-movable sensor quiver with moisturizing fleece. Easy to replace.

The enclosure

Blue. Sturdy. Well thought-out.Ergonomic. Resistant to impactand chemicals. Water-tight (IP 66 protection).

The cover

Protects against dirt and damageand serves as stand-up support.Highly flexible lamellar joint. Canbe folded back completely. Instructions on the back.

Portamess® 913 Oxy__________________________________________________________________________________________

49

DO measurement

The data logger

Unique. Automatic recording ofmeasured values over longer periods. Either manual (with STOkey), interval-controlled (5 s to 60 min), or event-controlled bymeasured-value changes – adjust-able from 0.01 to 19.99 mg/l).Combined with a PC, the metercan continuously record anyamount of data.

The interface

Bidirectional. Serial. Either forprinter or PC by simply turningthe plug around. Saves time-consuming writing, prevents manual transfer errors. Supplies records for QM docu-mentation (ISO 9000 and GLP).The Model 913 Oxy can be completely remote-controlled viainterface, e. g. for computer-con-trolled data accquisition and labautomation).

The software

Convenient. Paraly® SW 105transfer software. Transfers meas-ured values to the PC. Uncompli-cated documentation and furtherprocessing (e. g. with MicrosoftExcel). Data logger function. Remote control of all device functions.

Warranty3 years!

50

Portable Meters

The cover

Protects against dirt and damageand serves as stand-up support.Highly flexible lamellar joint. Can be folded back completely.Instructions on the back.

The hook

Fold-out. For hanging or stan-ding up. Keeps both hands freefor handling the sensor.

The carrying strap


The sockets


Portamess® 911 Cond SeriesBasic unit for mobile dissolvedoxygen measurement. Clear.Uncomplicated.

The keys


The display

Large, easy-to-read LC display (67 x 35 mm). Antireflection natural glass. Scratch-proof andresistant to chemicals. Clear iconsfor operator guidance.Sensoface®: Sensor diagnosticswith ”Smileys”.

The quiver

Integrated. Transparent. Removable sensor quiver withmoisturizing fleece. Easy to replace.

The enclosure

Blue. Robust. Well thought-out. Ergonomic. Resistant to impactand chemicals. Water-tight (IP 66 protection).

Portamess® 911 Oxy__________________________________________________________________________________________

Warranty3 years!

51

DO measurement

Original size

52

Portable Meters

Specifications Portamess® 913 Oxy _________________________________________________________________________________

Portamess® 913 (X) Oxyl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ranges Measuring current 0 ... 1000 nAl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Oxygen saturation 0.0 ... 600.0 % (0 °C to 55 °C) meas. error: 0.5 % meas. val. +0.2 % saturationl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Oxygen concentration 0.00 ... 60.00 g/l (0 °C to 55 °C) meas. error: 0.5 % meas. val. +0.05 mg/ll–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Barometric pressure 700 ... 1080 hPal–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Salt correction Configurable to 0.00 ... 45.00 g/kg, solubility function to EN 25814l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Sensor standardization [cal] Automatic with water-saturated air in quiver, zero calibration possiblel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration range Zero ±2 nA, Slope 25 ... 130 nAl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration timer 0 ... 14 days, default setting 6 daysl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Pressure correction Automatic using integrated pressure sensorl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temperature compensation Automatic with integrated NTC 22 kOhm Range 0.0 ... +55.0 °C / 32 ... +131 °F Resolution 0.1 °C / 1 °FMeasurement error < 0.5 Kl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Self-test Automatic at power-onl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data retention Parameters and calibration data > 10 years (EEPROM)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC directive 89/336/EECl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC standard EN 61326 /VDE 0843 Part 20: 2002-3l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ambient conditions Operating / ambient temp –10 ... +55 ºC; Transport and storage temp –10 ... +70 ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Display LC display 67 x 67 mm, character height 15 mm; measured value display: mg/l, %, ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 3 alkaline AA batteries, operating time approx. 1000 h; autom. switch-off after 1 hl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Enclosure Material: PA, IP 66 protected, with integrated sensor quiver l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions / weight 133 x 160 x 30 mm (W x H x D) / approx. 560 g incl. batteriesl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Clock Integrated real-time clock with datel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data memory 200 memory locations: mg/l or %, temperature, time, datel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data logger*) 200 data records, stored in the meter with time, date, and AutoRead index, unlimited

number of records when connected to PC, recording: manual, interval-controlled 5 s ... 60 min or event-controlled 0.01 ... 19.99 mg/l).

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface RS 232 C, serial, bidirectional, asynchronous, 600 ... 9600 bauds, data transfer for QM

documentation (ISO 9000 and GLP).l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface cable Length 1 m, universal plug, either for PC or printer connectionl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Software SW 109 transfer software: Recording of measurement data, memory contents and device

records in tabular form, allows entering notes for each measured value (e. g. tag number),Transfer of data to other Windows applications (e. g. Excel), included in supply. Control of Model 913 Oxy is integrated in the automation software for lab meters “labworldsoft” (Fisher Scientific) for display and control of device functions of Version 4.0 or higher.

53

DO measurement

Specifications Portamess® 911 Oxy_________________________________________________________________________________

Portamess® 911 (X) Oxyl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ranges Measuring current 0 ... 1000 nAl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Oxygen saturation 0.0 ... 600.0 % (0 °C to 55 °C) meas. error: 0.5 % meas. val. + 0.2 % saturationl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Oxygen concentration 0.00 ... 60.00 0g/l (0 °C to 55 °C) meas. error: 0.5 % meas. val. +0.05 mg/ll–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Barometric pressure 700 ... 1080 hPal–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Salt correction Configurable to 0.00 ... 45.00 g/kg, solubility function to EN 25814l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Sensor standardization [cal] Automatic with water-saturated air in quiver, zero calibration possiblel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration range Zero ±2 nA, Slope 25 ... 130 nAl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration timer 0 ... 14 days, default setting 6 daysl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Pressure correction Automatic using integrated pressure sensorl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temperature compensation Automatic with integrated NTC 22 kOhm Range 0.0 ... +55.0 °C / 32 ... +131 °F Resolution 0.1 °C / 1 °FMeasurement error < 0.5 Kl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Self-test Automatic at power-onl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data retention Parameters and calibration data > 10 years (EEPROM)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC directive 89/336/EECl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC standard EN 61326 / VDE 0843 Part 20: 2002-3l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ambient conditions Operating / ambient temp –10 ... +55 ºC; Transport and storage temp –10 ... +70 ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Display LC display 67 x 67 mm, character height 15 mm; measured value display: mg/l; %, Cl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 3 alkaline AA batteries, operating time approx. 1000 h; autom. switch-off after 1 hl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Enclosure Material: PA, IP 66 protected, with integrated sensor quiver l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions / weight 133 x 160 x 30 mm (W x H x D) / approx. 560 g incl. batteries

*) Configurable

54

Portable Meters

Oxygen sensors SE 300 SE 301l–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Sensitivity 40 ... 80 nA at 25 ºC in air 40 ... 80 nA at 25 ºC in airl–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Polarization voltage –670 +/–50 mV –670 +/–50 mVl–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Stabilization time Typ. 15 min, max. 1 h Typ. 15 min, max. 1 hl–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Temperature probe NTC 22 kOhm NTC 22 kOhml–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Temperature range 0 ... 60 ºC 0 ... 60 ºCl–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Body diameter 12 mm 12 mml–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Thread (SE 301) – Pg 13.5 for ZU 0553 immersion

weight l–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Process-wetted materials 11.4435 stainless steel, PEEK, 11.4435 stainless steel, PEEK,

silicone, NBR silicone, NBRl–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Regeneration Not required Not requiredl–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Flow dependence < 5 % at 25 ºC < 5 % at 25 ºCl–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Residual current < 0.5 % of current in air < 0.5 % of current in airl–––––––––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––Cable Fixed cable with SMEK plug, length Fixed cable with SMEK plug, length

1.5 m 5 m


Specifications Dissolved oxygen sensors_________________________________________________________________________________

55

DO measurement

Product line Portable oxygen meters and oxygen sensors__________________________________________________________________________________

Order No.–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Portamess® 913 Oxy Unit with clock, date, data memory, data logger, and interface, 913 Oxyas well as Paraly® transfer software and interface cable, including batteries, sensor quiver, and carrying strap, without sensor

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Portamess® 911 Oxy Unit including batteries, sensor quiver, and carrying strap, 911 Oxy

without sensor.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Oxy Set A For lab and field measurements, consisting of: Dissolved oxygen ZU 0556

sensor SE 300, robust field case, replacement quiver, and fleece (5 units)

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Oxy Set B For immersion measurements, consisting of: SE 301 dissolved ZU 0557

oxygen sensor, protection sleeve/ immersion weight, robust field case, replacement quiver, and fleece (5 units)

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dissolved oxygen sensor With 1.5 m cable. The SE 300 and 301 sensors require no flow SE 300

and provide highly accurate values. Thanks to the continuous polarization of the sensors, they are always ready to use.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––DO immersion sensor With 5 m cable (without protection sleeve/ immersion weight). SE 301

The SE 300 and 301 sensors require no flow and provide highly accurate values. Thanks to the continuous polarization of the sensors, they are always ready to use.

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Protection sleeve/ Immersion Protection sleeve/ immersion weight for SE 301 DO immersion ZU 0553

weight sensor, Pg 13.5 thread

56

Portable Meters

Order No.–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Flow-through fitting For SE 300 sensor, glass, with hose connections ZU 0284

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Sensor quiver 5 units (calibration chamber and moisturizing fleece) ZU 0331

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Moisturizing fleece 8 units (for sensor quiver) ZU 0571

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Lab printer Matrix printer with serial RS 232 interface, for standard paper, ZU 0244

with 57.5 mm. With the Lab Printer, you can document your measured values either at the press of a key or timer-controlled. Also records for QM documentation to ISO 9000 and GLP are printed at a single keystroke. The printer is equipped with a replaceable ribbon cartridge and prints on standard paper.

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Printer paper For ZU 0244 Lab Printer, 5 rolls ZU 0249

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ink ribbon For ZU 0244 Lab Printer, 5 ribbons ZU 0250

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Connecting cable For connecting process sensors with 4-pole cap to ZU 0554

the Models 911/913, 3 ml––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––For connecting process sensors with VP cap to ZU 0555the Models 911/913, 3 m

Product line Further accessories__________________________________________________________________________________

57

DO measurement

Laboratory Meters

pH

/Co

nd

59

Laboratory Meters–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

pH/ORP Measurement–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––





Conductivity Measurement–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

703 Laboratory Conductivity Meter 82


Overview

60

Quality assurance doesnot stop at your lab

door.

To make reliable pHmeasurements easierthan ever, Knick hasequipped the Model765 Laboratory pHMeter with an exem-plary package of safety functions.

Fullcheck®

automatically checksthe device functionsduring power-on. Also during operation,a complete instrument

check can be carried out at asingle keystroke. Here, also dis-play and keypad are checked besides the electrical character-istics.

Record printouts

With record printouts of the device self-test, the calibration,and the parameter settings, it ispossible (as part of quality man-agement to ISO 9000 and GLP)to document the serviceabilityand the regular maintenance and calibration of the unit.

Sensoface®

checks the electrode and pro-vides information on the elec-trode condition. The zero, slope,response time, and glass imped-ance of the electrode as well asthe calibration interval are evaluated.

Calimatic®

automatically recognizes theright buffer. It allows calibrationat the stroke of a key, providingease of use and – above all – safety.You simply immerse the elec-trode in two buffers of the selected set, no matter whichone you take first, and press thecal key. The meter automaticallyrecognizes the buffer and cali-brates itself. It does not matterwhich buffer solution is takenfirst.

Trueline®

delivers a calibrated analog re-corder signal, of course electri-cally isolated.This provides you with a true pH signal, calibrated for the electrode and without disturb-ing quantizing levels, permittingundistorted recording of pH curves.

Sockets

Robust gold plated sockets arestandard equipment.

EMC

EMC design protects the meterfrom electromagnetic interfer-ences, ensuring reliable meas-urement results even under unfavorable conditions.

765 Laboratory pH Meter__________________________________________________________

Laboratory Meters

61

Numerous practical features allow comfortable and safe pH measurement.

Temperature compensa-tion manual or automatic

Temperature compensation is either automatic with Pt 100or Pt 1000 temperature probesor manual, as selected.

Standard RS 232 interfaceVia the standard RS 232 inter-face your data can be imme-diately processed by a com-puter. Even direct output to a printer is no problem.

Displaymatic® for easierreadingDisplaymatic® facilitates readout.If the measured signal changesrapidly, the running charactersare blanked in order to allow easy reading. This allows you to read the currently measuredvalue without problems.

Easy-to read LED displayfor two measured valuesThe large, bright LED displayallows simultaneous readout oftwo measured values, such as pH and temperature. LED dis-play for alphanumeric charactersallows.

Double insulation pro-vides electrical safety inwet locationsThe well-designed enclosure hasproved successful in practicaluse. A waterproof membranekeyboard and drain grooves pro-tect the meter from moisture.The robust, stainless steel covered enclosure resists evenstrong mechanical stress.

• Fullcheck® automatic devicetest

• Records for QM documenta-tion to ISO 9000 and GLP

• Trueline® calibrated analog recorder output, galvanicallyisolated

• Electrode monitoring withSensoface® icons

• Automatic calibration withpatented Calimatic®

• EMC to NAMUR

• Electrode statistics

• RS 232 interface for computer and printer

• Displaymatic®

• Two user-defined measured value displays, simultaneous

• Dead-stop operation

• Self-contained clock

• Liquid-proof membrane keypad

• Robust enclosure

• IP 54 protection

• 3-year warranty

pH/ORP measurement

The facts_______________________________

Warranty




62

Laboratory Meters

Keypad _________________________________________________________________________________

Record printouts_________________________________________________________________________________

meas

par diagon/standby cal

print

enter

Exit function andreturn to measuringmode

On/off (standby)

Print currently measured valuesor function data

Activate calibration

Select line, edit value or selectvariable

Activate parametersetting

Select parameteror position

Activate diagnostics


Take over value or entry

Records of parameter setting, calibration, and diagnostics are particularly helpful for QM docu-mentation to ISO 9000 and GLP.

The records can be printed out directly to any commercially avail-able printer with a serial port at the press of a key.

63

pH/ORP measurement

Fullcheck® device self-test _________________________________________________________________________________

For the self test, the electrode is automatically switched off and theinput internally connected to the recorder output over a 100 MOhmresistor.

The microcontroller sends definedvoltage steps to the recorder out-put. These are measured with theinput amplifier and the A/D con-verter and compared with a highlyaccurate reference voltage.The 100 MOhm resistor at the sametime serves as reference for the im-pedance measuring circuit, whichthus is tested as well.

This means, a complete test of thesignal path is implemented with apH meter for the first time. In addi-tion, all memories, the display, andthe keypad are tested.

Display Keypad

Micro-controller

Trueline®

mV

mVGalvanicallyisolatedrecorderoutput

A

DVREF

pHMΩ

100 MΩ

64

Laboratory Meters

Specifications Laboratory pH Meter 765_________________________________________________________________________________

Laboratory pH Meter 765l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Equipment Meter with power cord, without electrodel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ranges pH: –2.00 ... +16.00 / mV: –1999 ... +1999 / ºC: –50.0 ... +150.0l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Display Alphanumeric 2 x 4 digits, 14-segment LED, 13 mm high characters, measurement

symbols pH/mV/ºC/man, 3 Sensoface® status indicators inform on the condition of electrode and equipment (GLP) 3)

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Measuring cycle Approx. 1/secl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Accuracy1) pH: < 0.01 / mV: < 0.1 % ±0.3 mV / ºC: < 0.3 Kl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Input DIN 19262l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Input resistance >1 x 1012 Ohml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Input current (20 ºC)2) < 1 x 10–12 Al–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temperature coefficient < 0.1 count /Kl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Electrode standardization Calimatic® automatic calibration and buffer recognition (German patent 29 37 227)

For buffer sets, see Page 65, permitted calibration ranges:Zero: pH 6 ... 8 Slope: 47 ... 61 mV/pH (25 ºC)

(Option 346) Nominal zero / slope/Viso*)

Zero: pH 0 to 14 Slope: 25 ... 61 mV/pH Viso: –500 ... +500 mVl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Electrode monitoring Sensoface® evaluates zero, slope, response time, and glass impedance

of the electrode, as well as the calibration interval, electrode condition displayed as good / average / poor, can be disabled

Cal timer monitors the calibration intervall–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Fullcheck® device self-test Tests complete measurement electronics incl. analog output, segment and

keypad test in diagnostics mode, automatic short-check at power-onl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Records Records of parameter setting, calibration, and diagnostics, records for QM documentation

to ISO 9000 and GLP3), retrievable in diagnostics mode or via interface (printer)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Displaymatic® Digit suppression according to signal change, can be disabledl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temperature compensation Pt 100/Pt 1000, automatic selection / manual: –50.0 ... +150.0 ºC*)

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dead stop current –10 µAl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Recorder output*) Galvanically isolated mV: 1 mV/mV / pH: 100 mV/pH / ºC: 10 mV/ ºCl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface RS 232 without control lines, galvanically isolated, can be used either as printer or

computer interface, Baud rate: 600 /1200 /2400 /4800 /9600*)

Data formats: 7 Bit, even/odd parity*)

8 Bit, no parity*)

Protocol: none, xon/xoff*)

Stop bits: 1l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Software Control of the Model 765 pH Meter is integrated in the automation software for lab

meters “labworldsoft“ (Fisher Scientific) for display and control of device functionsfor Version 4.0 or higher.

65

pH/ORP measurement

Specifications 765 Laboratory pH Meter, continued_________________________________________________________________________________

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Printer control For standard printer with serial port, printing at keystroke,

via print interval timer 0.1 ... 999.9 min*), or external floating contactl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Clock Real-time clock with date, self-containedl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration data storage Automatic storage of calibration data, self-contained l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data retention Parameters, statistics, and factory settings: >10 years (EEPROM)

Clock: reserve power >1 year (battery-backed)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Electrode statistics Storage of zero and slope of first calibration, as well as data of last 3 calibrations

with time and date stamp, self-contained, output via interface to printer or computerl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Protection against electrical Protective separation as defined in DIN 57100/VDE 0100 Part 410 and DIN VDE 0106 shock Part 101, power supply against all other inputs and outputs, in accordance with the

NAMUR recommendation “Extra-low voltage circuits with protective separation”l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC directive 89/336/EECl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Standards EN 61326 / VDE 0843 Part 20: 2002-3l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ambient temperature 0 ... +45 ºCStorage and transport temp –20 ... +70 ºC l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 230 V –15 % +10 %, 48 ... 62 Hz, < 10 VA, Option 363: 115 V AC l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Protection class II l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Sensor connection The meter allows connection of any commercial electrodes with DIN plug or banana plugl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Enclosure Glass-reinforced polyamide 12, stainless steel cover, IP 54 protection,

prepared for connecting ZU 6954 attachable standl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions (W x H x D) 244 x 95 x 255 mml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Weight Approx. 2 kg

*) User defined 1) ±1 count 2) 45 °C: factor 10 3) Good Laboratory Practice

Buffer setsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Buffer set – 00 – Knick technical buffers, nominals 25 °C: 2.00/4.01/7.00/9.21Buffer set – 01 – Mettler-Toledo (Ingold) technical buffers, nominal values 25 °C: 2.00/4.01/7.00/9.21Buffer set – 02 – Merck, Riedel, nominal values 20 °C: 2.00/4.00/7.00/9.00/12.00Buffer set – 03 – Technical buffer solutions to DIN 19 267,

nominal values 25 °C: 1.09/3.06/4.65/6.79/9.23/12.75Buffer set – 04 – DIN 19 266 and NIST (NBS), nominal values 25 °C: 1.679/4.006/6.865/9.180/12.454Buffer set – 05 – Merck, Riedel, nominal values 20 °C: 1.00/3.00/6.00/8.00/10.00/13.00Buffer set – 06 – Merck, nominal values 20 °C: 4.66/6.88/9.22Buffer set – 07 – Ciba (94), nominal values: 2.06/4.00/7.00/10.00Buffer set – 10 – Mettler-Toledo (USA), nominal values 25 °C: 4.00/7.00/10.01

66

Laboratory Meters

Printer Order No.: ZU 0244l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Type Matrix printerl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface Serial RS 232 portl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Paper Standard paper, width: 57.5 mm (2.25 inches)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Baud rate 4800 baudsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data bits 7, 1 stop bitl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Parity Evenl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Protocol Nol–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 230 V AC ±10 %l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions (W x H x D) 197 x 73 x 153 mml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Weight Approx. 1.2 kg (incl. power pack)

Stand Order No.: ZU 6954l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Material Pillar: anodized aluminum; carriage and base: polyamide 12 glass reinforced;

Beaker stop, vertical stop, and electrode clasp: stainless steell–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Carriage stroke 190 mml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Clamping possibilities 2 x 12 ± 0.5 mm; 1 x 4 ... 14 mm; 1 x 6 ... 16 mmStop for sample beakers from Ø 30 ... 150 mml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Beaker height Up to 130 mml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions (W x H x D) 130 x 300 x 145 mml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Weight Approx. 410 g

Plug-in power packfor immersion stirrer Order No.: ZU 6956l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 230 V AC –15 % +6 % < 8 VAl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Cable length 2 ml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Weight Approx. 380 g

Immersion stirrer Order No.: ZU 6955l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Material Enclosure: PVC; impeller and shaft: stainless steell–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions Unit: 250 x Ø 25/12 mm; impeller: Ø 12 mm; immersion depth: approx. 90 mml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Weight Approx. 140 g

Specifications Accessories_________________________________________________________________________________

67

pH/ORP measurement

Combination pH electrodes for lab and field units

The SE 100 and SE 103 electrodes with a glass body are combination electrodes for standard applications in the lab. The Model SE 100 has an integrated Pt 1000 temperature probe. The Model SE 103 with its high-temperature dissipation system is suitable for measurements in media up to 100 °C.For use in rougher environments, Knick offers the SE 101 electrode with plastic body. It is also equipped with an inte-grated Pt 1000 temperature probe. In addition, Knick also offers the SE 104 puncture electrode. This thin, gel-filled combination electrode is particularly robust and insensitive to pollution. Therefore, it is suited especially for measure-ments in semi-solid substances such as meat or cheese.

Combination pH SE 100 SE 101 SE 103 SE 104electrodesl–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Temperature probe Pt 1000 Pt 1000 – –l–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Body material Glass Plastic (PEEK) Glass Plastic (PEEK)l–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Body length 165 mm 110 mm 165 mm 99 mml–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Body diameter 12 mm 12 mm 12 mm 6 ... 16 mml–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Junction Ceramic 2-hole junction Ceramic Hole junctionl–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Electrolyte 3 mol/ I KCI, Polymer 3 mol/ I KCI, Polymer

refillable refillablel–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––pH measurement range 0 … 14 0 … 14 0 … 14 2 … 11l–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Temperature range 0 … 80 °C 0 … 80 °C 0 … 100 °C 0 … 80 °Cl–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Recommended temp probe Integrated Integrated ZU 6959 ZU 0156l–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Remarks – – High-temperature Puncture electrode

dissipation system

Order No. SE 100 SE 101 SE 103 SE 104

Specifications Combination pH electrodes_________________________________________________________________________________

68

Laboratory Meters

Order No.–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

765 Laboratory pH Unit with power cord, without electrode 765Meter

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Set 765 Laboratory pH Meter, SE 100 pH/Pt 1000 combination 765-Set

electrode, ZU 6954 attachable stand and ZU 6928 buffer set(no further optional equipment possible)

Optionsl–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 115 V AC 363l–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Electrode zero point Nominal electrode zero point and slope user defined 346

Product line Laboratory pH meters and combination pH electrodes__________________________________________________________________________________

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH/Pt 1000 combination (Glass body, length 165 mm) SE 100

electrode

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH/Pt 1000 combination (Plastic body, length 110 mm) SE 101

electrode

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Combination pH electrode (Glass body, length 165 mm) SE 103

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Combination pH puncture (Plastic body, length 99 mm) SE 104

electrode

69

pH/ORP measurement

Order No.–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Attachable stand Besides the immersion stirrer, the attachable stand can hold three ZU 6954sensors of any kind. The adjustable stops prevent damage of sensor and beaker glass. Time-consuming adjustment during sample changeshas been eliminated. An integrated cable duct does away with the“spaghetti cables” on your benchtop. For ZU 6955 immersion stirrer and three sensors, directly connected to the meter.

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Immersion stirrer The immersion stirrer reduces electrode response time for measure- ZU 6955

ment and calibration. Precision measurements to DIN 19268 evenrequire stirring. To prevent splattering of test liquid, the stirrer automatically stops as the carriage moves up. The stirrer is supplied via the ZU 6956 plug-in power pack.

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Plug-in power pack For immersion stirrer ZU 6956

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface cable For meter – computer connection (special EMC cable) ZU 0152

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Lab printer With the Lab Printer, you can document your measured values ZU 0244

either at the press of a key or timer-controlled. Also records forQM documentation to ISO 9000 and GLP can be printed out witha single keystroke. The printer is equipped with a replaceable ribboncartridge and prints on standard paper. It is connected to the 765 Laboratory pH Meter or the 703 Laboratory Conductivity Meter viaZU 0245 interface cable.

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface cable For meter – printer connection ZU 0245




70

Laboratory Meters

Order No.–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Pt 1000 temperature For fast response temperature measurements: stainless steel, ZU 6959 probe –10 ... +100 ºC), accuracy class A to IEC 751

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Pt 1000 temperature For fast response temperature measurements, with tilted tip ZU 0156

probe for puncture measurements in semi-solid substances: glass,0 ... +80 ºC, pH 0 ... 14, accuracy class A to IEC 751

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration buffer set With Knick technical buffer solutions, 250 ml each of pH 4.01, ZU 0261

pH 7.00, pH 9.21, and KCI solution

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration buffer set With standard buffer solutions to DIN 19266 and NIST (NBS), ZU 6941

250 ml each of pH 4, pH 7, and KCI solution

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––KCI solution 250 ml bottle ZU 0062

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Knick technical buffers pH 4.01 (set with 30 bags for one calibration each) ZU 0263

l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH 7.00 (set with 30 bags for one calibration each) ZU 0264 l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH 9.21 (set with 30 bags for one calibration each) ZU 0265 l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH 4.01 (1000 ml) ZU 0200l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH 7.00 (1000 ml) ZU 0201l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH 9.21 (1000 ml) ZU 0202

Product line Sensors and buffer solutions__________________________________________________________________________________

pH/ORP measurement

71

766 Laboratory pH Meter__________________________________________________________

72

Laboratory Meters

The Laboratory pH Meterwith uncompromising ease of use.

The 766 Laboratory pH Meter is designed for standard applica-tions in everyday lab routines. Itcombines practical functionalityand easy operation with compre-hensive safety functions.

Gaincheck®

Gaincheck® performs a completeinstrument check. At a keystroke,it not only checks electrical char-acteristics, but also display andkeypad. At power-on, a shortcheck automatically tests devicefunctions. This ensures the de-vice operability, as part of qualitymanagement to ISO 9000 andGLP.

Sensoface®

checks the electrode and pro-vides information on the elec-trode condition. Zero point, slope, response time, and glassimpedance of the electrode areevaluated.

Trueline®

delivers a calibrated analog recorder signal, of course elec-trically isolated. This provides youwith a true pH signal, calibratedfor the electrode and without disturbing quantizing levels, per-mitting undistorted recording ofpH curves.

Calimatic®

automatically recognizes theright buffer. It allows calibrationat the stroke of a key, providingease of use and – above all – safety.You simply immerse the elec-trode in two buffers of the se-lected set, no matter which oneyou take first, and press the calkey. The meter automatically recognizes the buffer and cali-brates itself. It does not matterwhich buffer solution is takenfirst.

EMC

EMC design protects the meterfrom electromagnetic interfer-ences, ensuring reliable measure-ment results even under unfa-vorable conditions.

• Gaincheck® automatic devicetest

• Trueline® calibrated analog recorder output

• Electrode monitoring withSensoface® icons

• Automatic calibration withpatented Calimatic®

• EMC to NAMUR

• Simultaneous pH and temperature display

• Easy operation




• 3-year warranty

The facts_______________________________

73

pH/ORP measurement

Easy operation with fivekeys

Even with its comprehensive safety functions, the Model 766remains easy to operate. Just fivekeys give access to all functionsyou require for easy and preciseroutine measurements.

Temperature compensationmanual or automatic

Temperature is automaticallycompensated. A pH/Pt 1000 electrode detects the tempera-ture and the Model 766 auto-matically calculates it into themeasured value. Of course, youcan also measure the tempera-ture using a separate sensor orenter it manually.

Easy-to-read LED displayfor pH and temperature

The large, bright 14-segmentLED display for alphanumericcharacters allows simultaneousreadout of pH/mV and tempera-ture.

Safe and robust enclosure

The well-designed enclosure has proved successful in practicaluse. A waterproof membranekeyboard and drain grooves pro-tect the meter from moisture.The robust, stainless steel covered enclosure resists even strong mechanical stress.

Warranty




74

Laboratory Meters

Gaincheck® device self-test_________________________________________________________________________________

Keypad _________________________________________________________________________________

diagon/standby cal meas

on/off(standby)


Exit function and return to measuring mode


Step through oredit value

For the self test, the measuring circuit is connected to the recorderoutput.

The microcontroller sends definedvoltage steps to the recorder out-put. These are measured with themeasuring circuit and the A/D con-verter and compared with a highlyaccurate reference voltage.

This ensures reliable checking of thesignal path. In addition, the Model766 tests all Sensoface® criteria, allmemories, the display, and the key-pad.

Gaincheck® allows you to checkyour instrument’s operability for quality management to ISO 9000and GLP.

Gaincheck® is only available fromKnick.

Display Keypad

Micro-controller

Trueline® Recorderoutput

A

DVREF

pHMΩ

75

pH/ORP measurement

Specifications 766 Laboratory pH Meter_________________________________________________________________________________

766 Laboratory pH Meterl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Equipment Meter with power cord, without electrodel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ranges pH: –2.00 ... +16.00

mV: –1999 ... +1999ºC: –50.0 ... +150.0

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Display Alphanumeric 2 x 4 digits, 14-segment LED, character height 13 mm; Measurement

symbols pH/mV/ºC/man, 3 Sensoface® icons inform on the condition of electrode and measuring equipment (GLP) 3)

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Measuring cycle Approx. 1.5/secl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Accuracy1) pH: < 0.01

mV: < 0.1 % ±0.3 mVºC: < 0.3 K

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Input DIN 19262l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Input resistance > 1 x 1012 Ohml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Input current (20 ºC)2) < 1 x 10–12 Al–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temperature coefficient < 0.1 count/Kl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Electrode standardization Calimatic® automatic calibration and buffer recognition (German patent 29 37 227),

For buffer sets, see Page 76, permitted calibration ranges:Zero: pH 6 … 8Slope: 47 ... 61 mV/pH (25 ºC)

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Electrode monitoring Sensoface®

evaluates zero, slope, response time, and glass impedance of the electrode, electrode condition displayed as good / average / poor, can be disabled

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Device self-test Displays all Sensoface® criteria and electrode data, tests measurement electronicsGaincheck® including memories, measured value processing, and recorder output, checks display

and keypad during diagnostics, automatic short check at power-onl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temperature compensation Pt 1000, automatic selection

Manual: 0.0 ... +100.0 ºC*)

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Recorder output*) pH-compensated, no quantizing levelsTrueline® mV: 1 mV/mV

pH: 100 mV/pHAutomatic matching to measured value setting

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration data storage Automatic storage of calibration data and settings, self-containedl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data retention >10 years (EEPROM)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Protection against electrical Protective separation of all extra-low-voltage circuits against power supply to DIN VDE shock 0100 Part 410 as defined in DIN VDE 0106 Part 101 and according to EN 61010 Part 1

*) User defined 1) ±1 count 2) 45 °C: factor 10 3) Good Laboratory Practice

76

Laboratory Meters

Specifications 766 Laboratory pH Meter, continued_________________________________________________________________________________

766 Laboratory pH Meterl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC directive 89/336/EECl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Standards EN 61326

VDE 0843 Part 20: 2002-3l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ambient temperature 0 ... +45 ºCStorage and transport temp –20 ... +70 ºC l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 230 V –15 % +10 %, 48 ... 62 Hz, < 10 VA, Option 363: 115 V ACl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Sensor connection The meter allows connection of any commercial electrodes with DIN plug or

banana plugl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Enclosure Glass-reinforced polyamide 12, stainless steel cover, IP 54 protection,


Buffer setsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Buffer set – 00 – Knick technical buffers, nominals 25 °C: 2.00/4.01/7.00/9.21Buffer set – 01 – Mettler-Toledo (Ingold) technical buffers, nominal values 25 °C: 2.00/4.01/7.00/9.21Buffer set – 02 – Merck, Riedel, nominal values 20 °C: 2.00/4.00/7.00/9.00/12.00Buffer set – 03 – Techn. buffer solutions to DIN 19 267,

nom. values 25°C: 1.09/3.06/4.65/6.79/9.23/12.75Buffer set – 04 – DIN 19 266 and NIST (NBS), nominal values 25 °C: 1.679/4.006/6.865/9.180/12.454Buffer set – 05 – Merck, Riedel, nominal values 20 °C: 1.00/3.00/6.00/8.00/10.00/13.00Buffer set – 06 – Merck, nominal values 20 °C: 4.66/6.88/9.22Buffer set – 07 – Ciba (94), nominal values: 2.06/4.00/7.00/10.00Buffer set – 10 – Mettler-Toledo (USA), nominal values 25 °C: 4.00/7.00/10.01

77

pH/ORP measurement





Specifications Accessories__________________________________________________________________________________

78

Laboratory Meters

Combination pH electrode for lab and field units

The SE 100 and SE 103 electrodes with a glass body are combination electrodes for standard applications in the lab. The Model SE 100 has an integrated Pt 1000 temperature probe. The Model SE 103 with its high-temperature dissipation system is suitable for measurements in media up to 100 °C.For use in rougher environments, Knick offers the SE 101 electrode with plastic body. It is also equipped with an inte-grated Pt 1000 temperature probe. In addition, Knick also offers the SE 104 puncture electrode. This thin, gel-filled combination electrode is particularly robust and insensitive to pollution. Therefore, it is suited especially for measure-ments in semi-solid substances such as meat or cheese.

Combination pHelectrodes SE 100 SE 101 SE 103 SE 104l–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Temperature probe Pt 1000 Pt 1000 – –l–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Body material Glass Plastic (PEEK) Glass Plastic (PEEK)l–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Body length 165 mm 110 mm 165 mm 99 mml–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Body diameter 12 mm 12 mm 12 mm 16 mml–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Junction Ceramic 2-hole junction Ceramic Hole junctionl–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Electrolyte 3 mol/ I KCI, Polymer 3 mol/ I KCI, Polymer

refillable refillablel–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––pH measurement range 0 … 14 0 … 14 0 … 14 2 … 11l–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Temperature range 0 ... 80 °C 0 ... 80 °C 0 … 100 °C 0 ... 80 °Cl–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Recommended temp probe – – ZU 6959 ZU 0156l–––––––––––––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l–––––––––––––––––– l––––––––––––––––––Remarks – – High-temperature Puncture electrode

dissipation system

Order No. SE 100 SE 101 SE 103 SE 104

Product line Combination pH electrodes_________________________________________________________________________________

79

pH/ORP measurement

Order No.–––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

766 Laboratory pH Unit with power cord, without electrode 766Meter

–––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Set A 766 Laboratory pH Meter with SE 101 pH/Pt 1000 combination 766-SET A

electrode, (combination pH/Pt 1000 electrode, plastic, 110 mm)

–––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Set B 766 Laboratory pH Meter with SE 100 pH/Pt 1000 combination 766-SET B

electrode, (combination pH/Pt 1000 electrode, glass, 165 mm)

Optionsl–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 115 V AC 363

–––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH/Pt 1000 combination Glass body, length 165 mm SE 100

electrode

–––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––pH/Pt 1000 combination Plastic body, length 110 mm SE 101

electrode

–––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Combination pH electrode Glass body, length 165 mm SE 103

–––––––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Combination pH puncture Plastic body, length 99 mm SE 104

electrode

Product line Laboratory pH meters and combination pH electrodes__________________________________________________________________________________

80

Laboratory Meters

Order No.–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Attachable stand Besides the immersion stirrer, the attachable stand can hold three ZU 6954sensors of any kind. The adjustable stops prevent damage of sensor and beaker glass. Time-consuming adjustment during sample changehas been eliminated. An integrated cable duct does away with the “spaghetti cables” on your benchtop. For immersion stirrer and three sensors. Fixed directly to the meter.

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Immersion stirrer The immersion stirrer reduces electrode response time for measure- ZU 6955

ment and calibration. Precision measurements to DIN 19268 even require stirring. To prevent splattering of test liquid, the stirrer automatically stops as the carriage moves up. The stirrer is supplied via the ZU 6956 plug-in power pack.

–––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Plug-in power pack For immersion stirrer ZU 6956


81

pH/ORP measurement

82

Laboratory Meters

The requirements for labmeasurements becomestricter every day. Qualityassurance and measure-ment documentation in accordance with GLP are a must in many areas.

With its numerous safety func-tions and record printouts at keystroke, the 703 LaboratoryConductivity Meter considerablysimplifies this work for you.

Fullcheck®

automatically checks the devicefunctions during power-on. Alsoduring operation, a complete instrument check can be carriedout at a single keystroke. Here,also display and keypad arechecked besides the electricalcharacteristics.

Record printouts

With record printouts of the device self-test, the calibration,and the parameter settings, it ispossible (as part of quality mana-gement to ISO 9000 and GLP) todocument the operability and theregular maintenance and calibra-tion of the meter.

Sensoface®

Sensoface® monitors the sensorand measuring equipment andprovides information on sensorselection and handling. It reportsclock memory loss and requestsregular checks in accordancewith GLP.

Calibration

Unknown cell constants can easily be determined with a standard calibration. The meterautomatically takes the TC of the calibration solution into consideration, calculates the cell constant and displays it. Ofcourse, a known cell constantcan also be entered directly.

Analog output

The galvanic isolation of the recorder output prevents themeasured values from being influenced by the connected peripherals. Measurement continues unimpaired.

EMC

EMC design protects the meterfrom electromagnetic interfer-ences, ensuring reliable measure-ment results even under unfa-vorable conditions.This makes the Model 703 thefirst laboratory conductivity meter that completely fulfills the EMC recommendations ofNAMUR.

703 Laboratory Conductivity Meter__________________________________________________________

83


The Model 703 offers a wide range of practical features to meetthe numerous requirements ofeveryday measuring tasks.

Automatic switchover to 4-electrode or 2-electrodeoperation

With the Model 703 you can use either 4-electrode or 2-elec-trode sensors. The measuringinput is automatically switchedto the appropriate operating mode.

Temperature compensa-tion manual or automaticTemperature compensation takes place either automatical-ly with Pt 1000/NTC 30 kOhm temperature probes or manually.

Standard RS 232 interfaceVia the standard RS 232 inter-face your data can be immedi-ately processed by a computer.Even direct output to a printer is no problem.

GLP records at the press of a keyRecords of the parameter setting,calibration, and device diagnos-tics can be output directly to aprinter. This provides you withcomprehensive GLP-compatibledocumentation at the press of a key.

Automatic adjustment of display rangeThe meter automatically selectsthe display range with the greatest possible resolution. Of course, the desired displayrange can also be specified manually.

Easy-to read LED displayfor two measured valuesThe large, bright LED displayallows simultaneous readout of two measured values, such

as conductivity and temperature. The 14-segment display canshow alphanumeric characters.

Double insulation provideselectrical safety in wet locationsThe well-designed enclosure hasproved successful in practicaluse. A waterproof membranekeyboard and drain grooves pro-tect the meter from moisture.The robust, stainless steel covered enclosure resists evenstrong mechanical stress.

• Measurement ranges from0.000 µS/cm to 2000 mS/cm

• <1.000 µS/cm ... > 1000 mS/cmwith one sensor

• Records for QM documenta-tion to ISO 9000 and GLP

• Calibrated analog recorder output, galvanically isolated

• Sensoface® monitoring of sensor and measuring equipment

• Automatic calibration withstandard solutions

• EMC to NAMUR

• RS 232 interface for computer and printer

• Two measured value displays,simultaneous

• Self-contained clock




• 3-year warranty

The facts_______________________________

_

Warranty




84

Laboratory Meters

Keypad_________________________________________________________________________________

Record printouts_________________________________________________________________________________

meas

par diagon/standby cal

print

enter

Exit function andreturn to measuringmode

On/off(standby)

Print currently measured values or function data



Activate parametersetting

Select parameter or position



Take over value or entry

Records of parameter setting, calibration and diagnostics are particularly helpful for QM docu-mentation to ISO 9000 and GLP.The records can be printed out directly to any commercially available printer with serial port.

85


Fullcheck® device self-test _________________________________________________________________________________

For the self test the sensor is auto-matically switched off and the inputswitched over to a reference resistor.The conductivity measuring circuit is automatically checked internally.The microcontroller sends definedvoltage steps to the recorder out-put. These are measured with theA/D converter and compared with a highly accurate reference voltage.

This means, a complete test of thesignal path is implemented with aconductivity meter for the first time.In addition, all memories, the dis-play, and the keypad are tested.

Cond

Display Keypad

Micro-controller

mV

mV Galvanicallyisolatedrecorderoutput

A

DA

D

VREF

86

Laboratory Meters

Specifications 703 Laboratory Conductivity Meter_________________________________________________________________________________

703 Laboratory Conductivity Meter 70l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Equipment Meter with power cord, without sensorl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ranges Cond: 0.000 ... 9.999 µS/cm; 00.00 ... 99.99 µS/cm; 000.0 ... 999.9 µS/cm;

0.000 ... 9.999 mS/cm; 00.00 ... 99.99 mS/cm; 000.0 ... 999.9 mS/cm;0000 ... 2000 mS/cm; auto-ranging or manual preset*); °C: –50.0 ... +150.0

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Display Alphanumer. 2 x 4-digit, 14-segment LED, character height 13 mm, measurement symbols:

20 °C, 25 °C, µS/cm, mS/cm, %/K, °C, Time, 3 Sensoface® icons inform on sensor and measuring equipment (GLP)

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Measuring cycle Approx. 1.5 /secl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Measuring frequencies Approx. 40 Hz to 2 kHz, automatic adjustment by conductancel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Resolution Up to 0.001 µS/cml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Accuracy1) Cond: < 0.5 % meas. value. ±2 counts

°C: 0.3 Kl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Reproducibility1) < 0.1 % meas. val.l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Temperature compensation –50 ... +150 °C; Pt 1000/NTC 30 kOhm (autom. selection) or manual,

Linear TC characteristic 0.00 ... +9.99 %/K, ref. temperature 20 °C/25 °C selectablel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Adm. cell constant 0.001 ... 199.9 cm–1, adjustablel–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Sensor standardization Operating modes – Automatic by determining the cell constant with NaCl or KCl solution

Calibration solutions: KCl 0.01 mol/l; 0.1 mol/l; 1 mol/l; NaCl 0.01 mol/l; 0.1 mol/l; saturated – Direct entry of cell constant

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Monitoring of sensor Sensoface® provides information: and equipment (GLP) – for selection of 2-electrode sensors

– on too great a difference between reference and measuring temperature– for handling of 4-electrode sensors– on clock memory loss– in case of irregular checking of measuring equipmentOptical display: good/average/poor

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Device self-test Test of measuring electronics including recorder output, segment and keypad test, RAM,

EPROM, and EEPROM test during diagnostics, automatic short check at power-onl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––GLP records (ISO 9000) Parameter settings, calibration, device diagnosticsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Recorder output Galvanically isolated (isolation voltage: 40 V DC, 20 V AC)

Cond: 1 mV/µS · cm–1; 1 mV/mS · cm–1; °C: 10 mV/°C user-defined for printer controll–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface RS 232 without control lines, galvanically isolated (isolation voltage: 40 V DC, 20 V AC),

user-definable as printer or computer interface,Baud rate: 600/1200/2400/4800/9600*) Data bits/parity: 7/Even, 7/Odd, 8/No*)

Protocol: none, XON/XOFF*) Stop bits: 1l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Software Control of the Model 703 Laboratory Conductivity Meter is integrated in the automation

software for lab meters “labworldsoft” (Fisher Scientific) for display and control of device functions for Version 4.0 or higher.

87


Specifications 703 Laboratory Conductivity Meter, continued_________________________________________________________________________________

l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Clock Real-time clock with date, self-containedl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Calibration data storage Automatic storage of cell constant and calibration procedure with

time and date stamp, self-containedl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data retention Parameters, statistics, and factory settings: >10 years (EEPROM)

Clock: reserve power >1 year (battery-backed)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Protection against electrical Protective separation as defined in DIN 57100 / VDE 0100 Part 410 and DIN VDE 0106 shock Part 101, power supply against all other inputs and outputs, in accordance with

the NAMUR recommendation “Extra-low voltage circuits with protective separation”l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––EMC directive 89/336/EECl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Standards EN 61326 / VDE 0843 Part 20: 2002-3l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Ambient temperature 0 ... +45 ºCStorage and transport temp –20 ... +70 ºC l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 230 V –15 % +10 %, 48 ... 62 Hz, < 10 VA, Option 363: 115 V ACl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Sensor connection The meter allows connection of any 2-electrode sensors with banana plug.

Special diode plug for 4-electrode sensors.l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Enclosure Glass-reinforced polyamide 12, stainless steel cover, IP 54 protection,


*) User-defined 1) ± 1 count2) 45 °C: factor 10 3) Good Laboratory Practice

88

Laboratory Meters

Printer Order No.: ZU 0244l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Type Matrix printerl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface Serial RS 232 portl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Paper Standard paper, width: 57.5 mm (2.25 inches)l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Baud rate 4800 baudsl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Data bits 7, 1 stop bitl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Parity Evenl–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Protocol Nol–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 230 V AC ±10 %l–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Dimensions (W x H x D) 197 x 73 x 153 mml–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Weight Approx. 1.2 kg (incl. power pack)





Specifications Accessories_________________________________________________________________________________

89


Conductivity sensors SE 202 SE 204 ZU 6985l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Number of electrodes 2 4 4l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Body Stainless steel 1.4571 Epoxy, black GlassElectrode material Stainless steel 1.4571 Graphite Platinum, barel–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Body length 120 mm 120 mm 110 mml–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Body diameter 12 mm 15.3 mm Tube 16 mml–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Temperature probe NTC (30 kOhm): NTC (30 kOhm): Pt 1000: –20 ... +100 ºC

–5 ... +100 ºC –5 ... +100 ºCl–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Immersion depth Min.: 30 mm, max.: Min.: 36 mm, max.: Min. 60 mm

total length incl. Cable total length incl. Cable Max. 80 mml–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Pressure resistance 2 bars 2 bars 2 barsl–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Cell constant 0.100 cm–1 ±2 % 0.475 cm–1 ±1.5 % 1.19 cm–1 ±1 %l–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Ranges 0.01 ... 200 µS/cm 1 µS/cm ... 500 mS/cm 1 µS/cm ... 1000 mS/cml–––––––––––––––––––––––––––– l–––––––––––––––––––––––– l–––––––––––––––––––––––– l––––––––––––––––––––––––Remarks Incl. flow cell – –


Specifications Conductivity sensors_________________________________________________________________________________

Conductivity sensors for lab and portable meters

SE 202 2-electrode sensor with integrated temperature probe (NTC 30 kOhm) and flow cell. For measurement in low-conductivity solutions such as ultrapure water and boiler feed water, e. g. for monitoring water desalinationplants.SE 204 4-electrode sensor with integrated temperature probe (NTC 30 kOhm). For measurement in natural waterssuch as surface water or drinking water, in aqueous solutions such as acid and alkaline solutions and for salinity determination of sea water. With the ZU 6985 4-electrode sensor from Knick, a lab-quality universal conductivity sensor is available. The sensoroperates reliably over a broad range from < 1.00 µS/cm to > 1000 mS/cm. It is equipped with a quick-reacting Pt 1000 temperature probe. It is provided with a glass/platinum measuring system with an easy-to-replace KPG®

tube. It is simple to clean and requires no platinization.

90

Laboratory Meters

Order No.–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Lab Conductivity Meter Unit with power cord, without sensor 703703

Optionsl–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Power supply 115 V AC 363

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––2-electrode sensor With stainless steel body incl. flow cell SE 202

(ZU 0298 adapter required)

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––4-electrode sensor With epoxy body (ZU 0298 adapter required) SE 204

–––––––––––––––––––––––––––– l––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––4-electrode sensor With glass body ZU 6985

Product line Laboratory conductivity meters and conductivity sensors__________________________________________________________________________________

91


Product line Calibration solutions, spare parts, and further accessories__________________________________________________________________________________

Order No.–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Temperature probe Pt 1000 ZU 6959

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Conductivity standard 12.88 mS/cm ±1 % (0.1 mol/l KCl), 250 ml solution, ready for use ZU 6945

l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––1413 µS/cm ±1 % (0.01 mol/l KCl), 250 ml solution, ready for use ZU 0348l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Low conductivity 15 µS/cm ±5 %, 300 ml solution, ready for use ZU 0349l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––For determination and checking of cell constants, low conductivity ZU 035015 µS/cm ±5 %, 300 ml ready-to-use solution

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––KPG® tube For ZU 6985 4-electrode sensor, incl. O-ring ZU 0180

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Replacement flow cell For SE 202 2-electrode sensor ZU 0284

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Adapter For connecting the SE 202 and SE 204 sensors to the ZU 0298

703 Laboratory Conductivity Meter

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Attachable stand Besides the immersion stirrer, the attachable stand can hold three ZU 6954

sensors of any kind. The adjustable stops prevent damage of sensor and beaker glass. Time-consuming adjustment during sample changes has been eliminated. An integrated cable duct does away with the“spaghetti cables” on your benchtop. For ZU 6955 immersion stirrer and three sensors, directly connected to the meter.

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Immersion stirrer The immersion stirrer reduces sensor response time for measure- ZU 6955

ment and calibration. Precision measurements to DIN 19268 evenrequire stirring. To prevent splattering of test liquid, the stirrerautomatically stops as the carriage moves up. The stirrer is supplied via the ZU 6956 plug-in power pack.

92

Laboratory Meters

Order No.–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Plug-in power pack For immersion stirrer ZU 6956

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface cable For meter – computer connection (special EMC cable) ZU 0152

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Lab printer With the Lab Printer, you can document your measured values either ZU 0244

at the press of a key or timer-controlled. Also records for QM documentation to ISO 9000 and GLP can be printed out with asingle keystroke. The printer is equipped with a replaceable ribboncartridge and prints on standard paper. It is connected to the 765 Laboratory pH Meter or the 703 Laboratory Conductivity Meter via interface cable.

–––––––––––––––––––––––– l–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Interface cable For meter – printer connection ZU 0245




93


94

Laboratory Meters

95

KnickElektronische Messgeräte GmbH & Co. KGBeuckestraße 22, 14163 BerlinP. O. Box 37 04 15, 14134 BerlinGermany

Phone: +49 (0)30 -801 91-0Fax: +49 (0)30 -801 91-200E-Mail: [email protected]: www.knick.de

Knick. Always better.

TP-1

94.0

00--

E040

3 Re

v. II

50

00

S

ubje

ct t

o ch

ange

!

Documents

Knick Laboratory and Portable Meters · 2016-11-17 · ment capabilities of portable meters are very similar to those of laboratory meters. Nowadays, many portable meters provide