Schleibinger CDF/CIF - Freeze-Thaw Testing Equipment · The CDF test machine has a mains connection with a 3x 32A/400V/50Hz CEE connector. As circuit protection 3x 32A are necessary

Schleibinger CDF/CIF - Freeze-Thaw Testing Equipment

Schleibinger GeräteTeubert u. Greim GmbH

Gewerbestraße 484428 Buchbach

GermanyTel. +49 8086 9473110

Fax. +49 8086 [email protected]

August 29, 2019

REV02

Contents 2

Contents

1 Introduction 4

2 Safety instructions 5

2.1 Protection switches . . . . . . . . . . . . . . . . . . . . . . 5

2.2 Personal safety . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2.1 First aid . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 Safety instruction for cooling liquid . . . . . . . . . . . . . 6

2.3.1 Protectives and behavioral rules . . . . . . . . . . 6

2.3.2 Reaction to malfunctions . . . . . . . . . . . . . . 7

2.3.3 Disposal of the cooling liquid . . . . . . . . . . . . 7

2.4 Safety instructions for the refrigerant . . . . . . . . . . . . 7

3 Installation 8

3.1 Set up of the CDF test equipmpent . . . . . . . . . . . . . 8

3.2 Configuration of the Network access . . . . . . . . . . . . 9

3.2.1 Network configuration between data logger and PC 9

4 Principles of operation 13

4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 System operation . . . . . . . . . . . . . . . . . . . . . . . 13

4.3 Mechanical construction . . . . . . . . . . . . . . . . . . . 14

4.3.1 Testing bath . . . . . . . . . . . . . . . . . . . . . . 14

4.3.2 Refrigerant equipment . . . . . . . . . . . . . . . . 15

4.3.3 Filling the system . . . . . . . . . . . . . . . . . . . 16

4.3.4 Cooling liquid . . . . . . . . . . . . . . . . . . . . . 16

4.4 Cube Test, ASTM C 666 Procedure A . . . . . . . . . . . 17

4.5 Key switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.6 Transport of the CDF test device . . . . . . . . . . . . . . 19

4.7 Emptying the cooling liquid . . . . . . . . . . . . . . . . . 19

4.8 Coooling water connection (optional) . . . . . . . . . . . . 19

5 Operation of the controller 20

5.1 Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.3 Cycle time . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.4 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.4.1 Target value . . . . . . . . . . . . . . . . . . . . . . 22

5.4.2 Profile input . . . . . . . . . . . . . . . . . . . . . . 23

5.4.3 Display . . . . . . . . . . . . . . . . . . . . . . . . 24

5.4.4 Clock . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.4.5 System menu . . . . . . . . . . . . . . . . . . . . . 25

Contents 3

6 Software handling with web browser 32

6.1 Measured Values . . . . . . . . . . . . . . . . . . . . . . . 32

6.2 Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.3 Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.4 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.5 Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7 Technical data 38

7.1 Values for the security devices . . . . . . . . . . . . . . . 38

8 Service hints 39

8.1 Repair and maintenance . . . . . . . . . . . . . . . . . . . 39

8.2 Maintenance controller . . . . . . . . . . . . . . . . . . . . 40

8.3 Help yourself . . . . . . . . . . . . . . . . . . . . . . . . . 40

9 Schematics and data sheets 42

9.1 Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

9.2 Electronics circuit diagram . . . . . . . . . . . . . . . . . . 42

9.3 Refrigeration diagram . . . . . . . . . . . . . . . . . . . . 43

10 Manufacturer 43

1 Introduction 4

1 Introduction

We congratulate you on the purchase of the CDF test equipment. Withthis equipment, you have acquired a high-quality test device for the real-ization of the freeze-thaw resistance test. Equipped with a microprocessor-controlled controller with internet interface, the device complies with thestate of technology and thus meets the requirements of the future. Dur-ing the execution of the equipment, the relevant safety regulations forrefrigeration and electrical systems were taken into account.

The technology of the system is easily accessible from all sides thanksto removable panels. Thick meticulously executed piping insulation andthe transverse ventilation of the unit part reliably prevent condensation.Very good fit of all components is achieved by the use of CNC punchingand CNC bending presses. Robust surfaces result from powder coatingof all sheet metal parts.

Figure 1: CDF test equipment


2 Safety instructions

This machine is constructed according to DIN EN 378-1class A. Thismeans it is allowed to run this machine in a room where people aresleeping, disabled persons are working, or a lot of not instructed peopleare present. So there are no special requirements in the training of thepeople working with, or nearby the machine.

A mix of 45 % water and 55 % glycol is used as a cooling liquid. Ac-cording to the European water protection standard the cooling liquid isassigned to level 0. There are no special requirements for environmentalor water protection for cooling liquid.

Until 2017, the CDF machines were built with the refrigerant R507. Since2017 the Schleibinger CDF machines are being built with the refrigerantR448a. Compared with CO2 (GWP = 1.0) R448a has a high potential forglobal warming (GWP = 1387) but lower than the previuous used R507(GWP = 3800). This fact requires a careful handling with the refrigerant.Service and repair jobs at the cooling machine are allowed only for welltrained and special educated persons. Please contact Schleibinger forfurther questions.

The lubricant of the cooling machine is long-term stable and does notneed to be changed during the service life. The oil is classified at waterdangerous class 1. There are no special oil protection requirementsnecessary. The CDF machine stops automatically when a leak occursin the system.

The CDF test machine has a mains connection with a 3x 32A/400V/50HzCEE connector. As circuit protection 3x 32A are necessary.

While using CDF equipment the environmental conditions should be at10 to 28 °C at maximum 65 % relative humidity. At higher humidity,more condensation may be present on some machine parts. Below 10°C, a special winter controller should be ordered with the machine. Attemperatures above 28 °C additional water cooling system is required.

Opening the lid of the cooling bath is only permitted if the bathtemperature is close to room temperature. We strongly recommendAttention!using waterproof isolation gloves for protection. Contact to the coolingbath at low temperatures may cause freezing the skin.

2.1 Protection switches

The CDF machine is equipped with the following safety and securitycomponents, which are adjusted by Schleibinger.

• Overtemperature protection for the heating unit (70 °C)

• Level indicator for the testing bath and the buffer.

• Safety switching device for limiting the high pressure for the com-pressor.

• Safety switching device for limiting the low pressure for the com-pressor

Changing the setup of the security devices is prohibited! Any ma-nipulation will lead to a total warranty loss!Attention!


2.2 Personal safety

To ensure the greatest possible protection for employees using the freeze-thaw equipment follow carefully all standards and laws for personal pro-tection and the standards EN 378-1 and EN 378-2 as well.

• Do not swallow the heat transfer medium (cooling liquid) and an-tifreeze concentrate (glycol)!

• Avoid skin contact!

• Avoid eye contact!

• Risk of frostbite on prolonged skin contact and appropriate tem-perature!

During hanging and removal of the sample containers:

• Avoid contact with skin. Wear protective gloves!

• Avoid contact with eyes. Wear safety glasses!

2.2.1 First aid

In case of contact with heat transfer fluid follow the instructions:

• In case of contact with eyes, rinse immediately with plenty of waterand seek medical advice.

• In case of contact with clothes and skin, take off immediately allcontaminated clothing and wash the skin immediately with plentyof water for a minimum of 10 minutes.

2.3 Safety instruction for cooling liquid

• Frostbite at low temperatures and direct skin contact.

• Intake via the skin can lead to health problems.

• Ingestion may cause damage to health.

• May irritate the respiratory system, eyes, skin, digestive tract.

• May cause nausea, vomiting, dizziness, convulsions, arrhythmia,difficulty breathing, impaired vision, kidney damage, liver damage,and neve damage.

• Pentration into soil, water and sewage system is to be avoided.

2.3.1 Protectives and behavioral rules

• Do not leave the lid of the CDF machine open.

• Cover not used place in the CDF bath with some cover plates ordummy containers.

• Wear eye/face protection.

• Wear suitable gloves.

• Avoid splashing when refilling.

• Avoid splashing when taking sample container.

• Do not use reactive substances.

• Do not eat, drink or smoke.


• Avoid breathing vapors.

• Avoid contact with eyes, skin and clothing.

• Immediately remove product residues from the skin, gently cleanthe skin and dry thoroughly.

2.3.2 Reaction to malfunctions

• In the case of safety-endangering defects and malfunctions, do notuse the device and inform those responisible.

• Collect spilled liquid with adsorbable non-sombustible material (suchas diatomaceous earth, sand) and dispose it according to localregulations.

• In case of fire: use fire extinguisher. Do not use water in the fulljet! Do not breath fumes!

2.3.3 Disposal of the cooling liquid

• Avoid release to the environment.

• Do not empty into drains; dispose of this material and its containerin a safe way.

• Completely emptied or cleaned metal containers can be releasedfor scrap utilization.

• Completely emptied or cleaned plastic containers can be returnedfor recycling.

2.4 Safety instructions for the refrigerant

The refrigerant R448a belongs to the group L1 according to EN 378-1.It is not flammable and has no significant harmful effects on humans.

• The refrigerant is heavier than air and collects in the event of leak-age on the ground.

• It is hardly noticeable by smell.

• At high concentrations, oxygen deficiency may occur. There isdanger of suffocation.

• When inhaling high concentrations, there is the possibility of car-dac sensitization by adrenaline. It can lead to cardiac arrythmiasuntil cardiac arrest.

• Liquid refrigerant on the skin and in the eyes cuses frostbite.

• In case of leaks, protect hand and face with gloves and safetyglasses.

• Open flame or very hot surfaces can cause decomposition of therefrigerant, producing very toxic gases. Smoking and open flamesare therefore prohibited.

• Ask for service for finding leaks!

Do not change safety, protection and control devices! When refilling,Attention!use only the refrigerant R448a. Refrigerant may only refilled in a liquidstate.

• In case of fire, switch off the refrigeration system. Containers andsystem parts that are filled with refrigerant can burst violently.

• When extinguishing, cool the container and system parts with wa-ter spray.

3 Installation 8

3 Installation

3.1 Set up of the CDF test equipmpent

The floor should be designed for a load of at least 300 kg/m2. For apurely air-cooled system, the room size should be at least 200 m3 andbe well ventilated to dissipate the waste heat. According to EN 378-1,the volume of the room should be at least 8 m3 in terms of any escapingrefrigerant.

For the set up of the CDF equipment, please ensure free air circulationaround the equipment (2).

The CDF machine should be set up to be level. Please check this by alevel at the testing bath (3). If necessary, the device can be leveled withfour adjustable feets. It should be adjusted to ± 1 mm/m exaclty.

Figure 2: Set up of the CDF machine.

Figure 3: Level check.

3 Installation 9

3.2 Configuration of the Network access

The Schleibinger data logger, the Slabtester and the CDF machine areequipped with a 100 BaseT network interface. It can be integrated withina local Intranet or globally into the Internet. The network configurationcan be done with the program Chiptool which can be found on USB stickdelivered with the equipment or downloaded from the page:

www.schleibinger.com/chiptool.

Example of Default Settings:

Device: Data logger for the shrinkage cone

Customer: Miximaxi AG

Serial Nr: 201312324

MAC-ID: 00:30:56:90:7D:C3

Hostname: Scone_201312324

[] Obtain an IP-Address automatically

[] Use the following IP-Addresse: IP addresse:.......

Subnet mask:.......

3.2.1 Network configuration between data logger and PC

There are two options for the network configuration of the data loggerand PC available:

• by automatically getting an IP address = default setting at time ofdelivery

• by using a static IP address

Automatically getting IP address

Connection of the data logger into a local network with DHCP- and DNS-Server is the simplest and fastest method.

• Connect the data logger with your local network (switch) using thenetwork cable which was delivered with the device and switch onthe data logger (24V adapter)

• Enter the host name into the address line of your browser in a form"http://. . . " (Fig. 4.)

A DHCP-Server assigns a free IP address to the data logger. You canaccess the data logger via the default host name using the DNS (Fig. 4).

Hint: DHCP server are scanning the network from time to time assigninga IP address and a symbolic name to all computers in the network. Thisprocedure may take some time. So please wait some minutes until youtry to access the data logger with its host name.

Alternatively, in the case the host name - DNS-server does not work orsupported in your network the connection with the data logger can bedone by using of the assigned IP address. This IP address can be foundfrom the program Chiptool, mentioned above (Fig. 5).

Make sure the data logger always getting the same IP address fromthe DHCP server. Enter the IP address assigned by the DHCP serverinto the address line of the browser instead of the host name (Fig. 6).

www.schleibinger.com/chiptool

3 Installation 10

Figure 4: Accessing the data logger with a symbolic server name.

Figure 5: Readout the IP address to the data logger with the programchiptool.

Figure 6: Accessing the data logger with a fix IP address.

3 Installation 11

using static IP address

If no network avaliable or you are not allowed to connect a measurementdevice into your local network, the Schleibinger data logger can be con-nected directly to a PC, e.g. with an older notebook. Most of the PCs areconfigured in a way, that they take an IP address automatically assignedby the DHCP server. In case of a direct connection between data loggerand PC, both peers are missing the DHCP server. For this chase use astatic IP address.

a) set static IP address on the computer:

Open Control Panel→ Network and Internet→ LAN-Connection→Properties and set a static IP-address from the so called private areae.g. 192.168.1.1 and a sub net mask 255.255.255.0. Gateway doesn’thas to be set. See figure 7

b) set static IP address on the data logger:

Connect the data logger and the PC with the static IP address with across-wired Ethernet cable (Cat5, RJ45)- not delivered with the equip-ment, and start the program chiptool. The program is searching for thedata logger and if the PC is configured correctly and the right connectioncable is used, the Schleibinger device appears in the window of the pro-gram. Click with the right mouse button on the entry within the windowand choose IP configuration. A small window appears. Enter an otherstatic IP address from the same private area as well [Fig. 8). This IPaddress has to be different from one of PC e.g. 192.168.1.2 and thesame sub net mask. Finally click on Config.

Enter the new IP address of the data logger in the header of the browser.The main page of the data logger should appear.

For the integration of the data logger into the network infrastruction,please, ask your network administrator.

Figure 7: Configuration of PC for a direct connection with data logger.

3 Installation 12

Figure 8: Configuration of the data logger for direct connection usingprogram chiptool.


4 Principles of operation

4.1 General

The CDF freeze-thaw testing device enables the implementation fo thefreezw-thaw resistance test according to RILEM Recommendation (Ma-terials and Structures (1996) Vol 29 (193), pp 523-528), according to theRILEM CIF test and according to CEN/TS 12390-9. The advantage ofthese test methods lies in the very good reproducibility of the measure-ment results.

The specimen containers are suspended in a temperature bath with heattransfere liquid (fig. 9). This enables an optimal temperature distribution,a fast temperature adjustment and a temperature gradient running per-pendicular to the tested surface. Due to the optimal thermal contact, thetemperatures can be maintained very accurately over the entire temper-ature curve.

With a appropriate system upgreade, the cube test (VDZ cube method)in accordance with CEN/TS 12390-9 and the ASTM test in accordancewith ASTM C666 procedure A can be carried out. In contrast to air con-ditioning cabinets, the freeze-thaw cycle can be run through in 12 hoursinstead of 24 hours due to an efficient heat transfer from the heat transferfluid to the sample. Hence, testing time and costs will be minimized.

Figure 9: Positioning of the samples in the CDF test devoce (here:Kühlflüssigkeit = heat transfer fluid; Prüfflüssigkeit = test fluid; Luft =air; Beton = concrete sample).

4.2 System operation

The CDF test device is a temperature control bath that subjects a con-crete samples placed in a sample container to a temperature profile (fig.10). The temperature profile is freely programmable within the systemspecification. Up to 8 different temperature profiles can be stored for thistest device.

The reference temperature is measured at the bottom of the containerin the middle of the CDF bath. Be sure that one container is in contactwith the temperature probe.

The cooling liquid is circulated by pump 1 (fig. 11). For heating theheater is switched on. For cooling a dosage of cooling liquid from thecooling liquid buffer is added by magnetic valves. The cooling liquid inthe buffer is pumped in a second circulation through the evaporator backto the buffer. The evaporator is a plate heat exchanger where the liquidrefrigerant evaporates at a temperature of approx. -38 °C. The vaporizedrefrigerant is compressed in the refrigeration system and condensed by


cooling. The cooling is done by air, alternatively by water or in combina-tion of air and water.

The temperature of the buffer liquid is always lower than the tempera-ture of the bath liquid above. By this arrangement, a fast and precisetemperature adjustment of the cooling liquid is possible.

Figure 10: Temperature cycle for the CDF test device.

Figure 11: Cooling system from the CDF test device.

4.3 Mechanical construction

The CDF test device is supplied as a plug-in compact device in chestform. It consists of three main parts (fig. 12):

• testing bath

• refrigerant equipment

• controller unit

4.3.1 Testing bath

The testing bath, the tub, is thermally insulated and is made of highquality stainless steel. For the uniform temperature distribution in thetesting bath, the cooling liquid is kept flowing. The sample containersare made of stainless steel and are placed in the cooling bath. Theconcrete samples are placed in the sample containers. Directly underthe testing bath with the cooling liquid is the cooling liquid buffer.


Figure 12: Basic structure of the CDF test device.

4.3.2 Refrigerant equipment

In this part of the device, the modules for temperature and circulation ofthe cooling liquid are placed (fig. 13).

Figure 13: Refrigerant equipment of the CDF test device.

This part of the device is accessible by removing the trim panels. Theseare attached with spring clips. To remove the panels, pick up best underthe panel and pull it out jerkily (fig. 14).

To attach the panel, insert the nipples into the openings of the springtabs. Lock the sheet by applying pressure to all edges of the panel. Donot press in the middle of the panel.

Figure 14: Removing of the panels of the CDF test device.


4.3.3 Filling the system

The amount of cooling liquid is about 100 liters (see chapter 4.3.4). Thecooling liquid is filled into the testing bath and passes through the over-flow into the cooling liquid buffer (fig. 15, left).

Fill the cooling liquid until the optimal level in the buffer is reached (fig.15, right). Before filling the system, make sure the device is in level.

Switch on the pumps from the manual menu (see chapter 5.4.5). Youmay need to turn the pumps on and off several times until the ciruitremains stable.

Check the filling quantity with hinged sample containers again. Neverrun the pumps for long time without liquid. Always make sure that thepumps are not sucking in air.

Figure 15: Filling amount of cooling liquid.

4.3.4 Cooling liquid

The cooling liquid is a water-glycol mixtures.

• Adjust the cooling liquid to a minimum of -40 °C and a maximumof -50 °C.

• The density of the water-glycol mixture should be inbetween 1.072and 1.075 g/cm3 at 20 °C.

For concentration, replace the amount of water-glycol mixture with gycolconcentrate as shown in table below:

measuredantifreeze,°C

density amount of gly-col / water

amount to be re-placed in liters

-20 1.051 35/65 18-25 1.058 40/60 14-30 1.065 45/55 9-35 1.070 53/47 7-40 1.075 55/45 0

During operation, the temperature of the testing bath is most of the timebelow the room temperature. Therefore, a dilution with condensation,


especially with the lid open is possible. By handling the samples addi-tional water is added to the cooling liquid, thereby changing the concen-tration of the water-glycol mixture. Check the antifreeze of the coolingliquid regularly. For quick and safe control we recommend to use a re-fractometer (fig. 16).

Figure 16: Refractometer and antifreeze indicator at -36 °C.

4.4 Cube Test, ASTM C 666 Procedure A

The equipment may optionally be used for the cube testing method ac-cording CEN/TS 12390-9 or for the testing method according to ASTMC 666 procedere A. Both methods require a higher fill level of coolingliquid and a higher heat output. For the conversion, proceed as follows:

• screw on an additional sequence piece of the drain in the bath toreach a level of at least 100 mm and put the filter back in (fig. 17).

• After the majority of the sampel containers has been placed in thebad, additional cooling liquid must be filled.

• Check the filling level of the cooling liquid from the side of the de-vice (fig. 18, left).

• The heater of this option can be operated with a power of 2 kWor 6 kW. For using the heater with the power of 6 kW the param-eter VDZkr has to be changed. Select from touch screen setup–> system menu –> controller –> bath —> VDZkr. Enter thenumber 5. The device heats up with higher power of 6 kW if thedeviation is greater than 5 °C (fig. 18, right).

• Choose the suitable profile in setup menu: profile for cube testmethod (VDZ12 or VDZ24) or profile ASTM 666 for test profile ac-codring ASTM C 666 procedere A.

Figure 17: Increase the level of cooling liquid in the bath.


Figure 18: Level control of the cooling liquid and parameter setting forthe higher heating power.

4.5 Key switch

During operation, the touch screen can be protected against unautho-rized users. The touch screen can be blocked so that the operation onthe touch screen is no longer possible. To do this, turn the key on thefront side of the device under the touch screen to position 0. The keycan then be removed.

Nevertheless, it is possible to access the system via the network.Please note:

Figure 19: Blocking of the touch screen.


4.6 Transport of the CDF test device

In the case of a trasportation of the CDF test device, remove the coolingliquid from the bath and the storage tank (buffer).

Only attach the system to the frame of the chest and avoid exertingany force on the side (trim panels) of the chest or the controllerunit.Attention!

The trim panels should be additionaly secured or trasported extra. If nofrost-proof transport is to be expected, the residual water from the water-cooled systes must be drained from the plate heat exchanger (evapora-tor) to prevent frost damage.

4.7 Emptying the cooling liquid

Connect a water hose to the drain valve and run the cooling liquid intocontainers. Remove the overflow piece of the drain in the bath (fig. 17,left) so that the cooling liquid can run out.

4.8 Coooling water connection (optional)

If the system is equipped for this purpose, it can be supplied with coolingwater via 1/2 "hoses. When connecting, observe water input and output(fig. 20). The side panel has corresponding implementations for thewater hoses.

One-site installation of manometers in the water input and water outputand a water meter are recommend. The differential pressure shouldbe between 1 and 10 bar. The flow regulator is set so that the systemonly removes cooling water, if cooling by air is disturbed or if the roomtemperature is too high.

To reduce the heat input into the room, the volume controller can beturned to position 3. If no heat input into the room desired, the fan of thecondenser can be disconnected by an expert.

Figure 20: Water connectors for cooling water.


5 Operation of the controller

This part of the user manual describes all the functions that can be setby the user from the touch screen of the CDF controller. The controlleritself is located in the controller unit at the top left.

The display and input can be done from the touch screen.

Turn the red main switch below the USB port to turn on the system. Aftera few seconds the main menu appears on the display (fig. 21).

To stop the CDF controller when running, press anywhere on the displayand select stop.

Figure 21: Main menu on touch screen.

5.1 Start

The main switch of the system should be switched on for at least onehour before the testing is started. The compressor heater is then acti-vated. The warming up prevents overpressure failure of the compressorafter a long standstill. If you are sure the device is already warm, youcan skip this hint with Continue (fig. 22).

Figure 22: Hints for warming up of the system.

Choose Start to start the system. The system starts at the specifiedcycle time. This time is retained even after switching off and can bechanged in the menu cycle time (see chapter 5.3). For the CDF test 28cycles of 12 hours each will be executed. The corresponding number ofcycles will expire, if another profile is activated. At the end of the lastcycle, the temperature is kept constant at +20 °C until the cycle time isreset and restarted. This means in case of a new test the cycle time hasto be reset.


The system has a restart protection. After a power failur, the sys-Please note:tem stops. To restart, the start command must be entered. Thesystem can restart automaticaly, if the automatic restart is acti-vated. For this choose in main menu Setup –> System Menu –>Misc. (see chapter 5.4.5)

The temperature profile and the number of cycles can be freely definedby the user in the menu Setup –> System Menu –> Profile inp. (seechapter 5.4.2). The CDF profile is activated by default.

5.2 Status

From the status the current information about the status of the digitalinputs and the temperatures can be obtained (fig. 23, 24).

The current temperature recording can be shown from the submenuGraphic.

Figure 23: Menu - Status.

Figure 24: Infomration from the inputs and the temperature.

5.3 Cycle time

The internal clock of the system remembers the cycle time of the laststop and continues at the same position at the next start. This is alsothe case in the event of a power failure or after a long stopp of the device.

The cycle time is indicated in hours (h) and minutes (m). For reset ofthe system to the beginning of the first cycle, enter 0 for hours and 0 forminutes (fig. 25).

After completion of specified number of cycles, the temperature controlwill remain at +20 °C until the cycle time has been reset.


Figure 25: Menu - Cycle Time.

With this function, the system can be started at any time during theselected temperature profile.Hint:

For example in case of CDF test, when the system should start at 10a.m. and the weathering should be determined at 1 to 3 p.m., the cycletime should be set to 7h and 30m. According to the temperature profile,3 hours later the cycle time is 10h 30m and the real time is 1 p.m. Thetemperature in the testing room is in the range over +15 °C and thesamples can be removed out of the bath for further processing.

5.4 Setup

The settings for the CDF equipment are available from the submenusetup (fig. 26, left).

5.4.1 Target value

With this function, the CDF equipment works as a temperature controlunit. The temperature can be adjusted from the submenu Target. Val.(fig. 26, right).

The CDF system runs at this temperature until it is stopped. Thereafter,the system continues to work again in the set cycle. For a new temper-ature specification, a new setpoint (Target. Val.) must be specified.

Figure 26: Setup and Target value.


5.4.2 Profile input

Some of the temperature profiles are factory-set at the CDF test equip-ment and can be selected directly from the touch screen (fig. 27). Thecurrent activated temperature profile is marked accordingly.

Figure 27: Submenu - Profile select.

These temperature profiles can be changed by the user. Please note:

• The controller is optimized for the CDF testing. Every change ofthe set profile may worsen the regulation of the controller. In worstcase, this may lead to instalbility of the control.

• The testing equipment has a refrigeration and temperature controlsystem optimized for the CDF testing. Temperatures lower than-20 °C should not be used.

• The cooling liquid becomes viscous at lower temperatures. De-pending on the glycol to water ratio, it may freeze at lower temper-atures. This can lead to the shutdown of the system.

• The pumps are designed for the temperature range of -20 °C to+40 °C.

Any change in the temperature profile is an improper use of theequipment in therms of warranty and product liability. Any liabilityfor this will be rejected.Attention!

If changes in the temperature profile have to be made, please carefullycheck the technical possibilities of the equipment. For questions pleasedo not hesitate to contact us.

For viewing or changig of the temperature profile tipe on the profile. Thanselect the submenu Prof. Input (fig. 28).

Figure 28: Submenu - Profile input (left) and Input (right).


• For change of the selected temperature profile click on Input

• For displaying of selected temperature profile choose Display

• For editing of temperature-time line select Edit Line

• For editing of the cycle number coose Edit Cycle

• Tap Return to come back to the previouse menu.

The temperature profile is defined by time, temperature and number ofcycles. Accordingly, the CDF temperature profile is defined as follows:

line time temperature1 0 +202 4 -203 7 -204 11 +205 12 +20

Figure 29: Temperature profile.

The number of cycles depends on the testing procedere for exampleCDF or CIF procedere. For continuous running the equipment at thesame temperature profile the number of cycles can be set to 32000 max-imum.

The cooling liquid buffer has its own temperature profile. To activate it,select from the profile select the submenu Buffer Pr. 0. The setup forthe buffer can be done from the System menu –> Controller –> Buffer(see chapter 5.4.5).

5.4.3 Display

The setup of the display can be done from the submenu Display (fig.30,left). The following settings are possible:

• make the display brighter or darker

• Touch screen calibration

• Setup of the graphical display Graph. Display (fig. 30, right). Byselecting the buttom Graphic it is possible to specify whether thegraphic should be displayed in the status display during operation.The graphic setup can be done individually.


Figure 30: Submenu - Display (left) and Graph. Display (right).

5.4.4 Clock

The CDF machine differentiate between the cycle time and the real time.The cycle time can be adjusted from the submenu Cycle Time (see alsochapter 5.3). The real time can be adjusted from the submenu Setup –>Clock (fig. 31).

Figure 31: Setup of the real time.

5.4.5 System menu

The basic setup of the controller can be done from the submenu Setup–> Systen Menu (fig. 32).

Please note some of the parameters are individually adjusted forAttention!your testing machine in order to get a proper work of the testing.

Figure 32: Menu Setup –> System Menu.


Manual

From this submenu Manual pumps, valves, radiator and heater can beswitched on or off manually (fig. 33).

WARNING: If the submenu (Mk-Mv+Y-1) from compressor is acti-vated, some of the security switches may be deactivated. Do neverswitch on the heating unit when pump 1 is off. To switch on theheating unit activate (E-H) AND (Q-H).

Do not user this menu if you have not previously dealt in detailAttention!with the system technology and are aware of the context. Improperhandling leads to a fail of the system. Please contact Schleibingerfor further questions.

Figure 33: Submenu for manual control of the testing machine.

submenu descriptionMk-Mv+Y-1 compressor and magnetic valve 1PU1 pump 1PU2 pump 2Q-H relay heatingY-K1/2 magnetic valve 1/2"Y-K3/8 magnetic valve 3/8"E-H solid state relay for heating unitVDZ relay for the cube test heating unit (option)


Controller

From the submenu Controller the controller settings can be adjusted(fig. 34). These parameters are set by the manufacturer and must notbe changed. Please contact Schleibinger for further questions!

Figure 34: Regulatory parameters of the controller.

Bath :

The testing bath controller is a three-position controller with feedback.The adjustment can be done from the submenu Controller –> Bath (fig.35).

Figure 35: Setting parameters of the bath.

Do not change the parameters! Please contact Schleibinger for sup-Attention!port!

The schematic representation of the bath parameters is shown in fig. 36.The parameters set can be found from the calibration sheet of the CDFmachine in the controller unit.

submenu descriptionx_Sh switching interval for coolingx_sk switching interval for heatingx_sd switching hysteresistr delay of the switching signal at the PI controller

(PI=1)tk amplification of the switching signal at the PI con-

troller (PI=1)ts sampling rate of the controller


Since December 2003, the CDF machines have been equipped with twodifferent Y-K magnetic valves.

Since January 2008, the CDF machines have been equipped with twoidentical Y-K magnetic valves. Each of the valves can be closed by a ballvalves. One of the Y-K magnetic valves should be running.

Figure 36: Setup of the bath controller.

Buffer :

A buffer for the cooling liquid of approx. 50 liters under the testing bathis integrated. The temperature of the cooling liquid in the buffer is de-pendent from the set temperature of the cooling liquid in the testing bathand about 4 to 6 °C lower. The temperature difference to the setpointand the hysteresis are set (fig. 37).


Figure 37: Setting parameters of the buffer.

For some special applications, it may be useful to assign the buffer itsown temperature profile. This will be done in the submenu Profile Inputand assigned there (see chapter 5.4.2). In order to have enough refrig-eration capacity available at the freezing point, it is possible to define astorage profile in which the buffer holds the cooling liquid at the minimumtemperature. The temperature difference is no longer active in this case,so that the lead to the nominal temperature profile must be taken intoaccount. An example of a possible temperature profile for the buffer isshown:

line time,h

temperature, °C

1 0 +202 2 -22,53 7 -22,54 11 +205 12 +20

Object parameter :

The controller is implemented with a so called Luenberg observer. Forthis additional parameters for the CDF machine are required and can beadjusted in the submenu Object. The explanation of the parameters isshown in table 1:.

Table 1: Parameteres for the state (Luenberg) observerObject default remarkTotzeit 25000 dead time / skk38 -0.015 factor for the cooling with Y-K1KK12 -0.020 factor for the cooling with Y-K2kk3812 0.030 factor for the cooling with Y-K1 and Y-K2u1 0.000 factor for the heating from the pumpsu2 0.05 factor for the heaterbeobkorr 0.13 correction factor


Probes

The temperature of the CDF machine will be measured by PT100 sen-sors. The calibration values for the temperature sensors of the testingbath and the buffer will be safed in the submenu Setup –> System Menu–> Probes (fig. 38).

Do not change the values! If the original values are lost, they can befound on the calibration certificate in the controlling unit.

Figure 38: Values for the temperature sensor.

The setup is as following:

• Offs1+ and Offs1- compensate the offset of the Wheatstone bridge

• v1+ and v1- determine the amplification.

• Ry is the resistance value of the bridge used.

• Mean values is giving the number of measurement points for theaveraging.

• the internal measured values can be displayed by selecting thesubmenu Data.

For the calibration use a mixed bath equipped with the sensor and areference thermometer.Hint:

RAM reset

From the RAM Reset the default values of the controller will be set. Usethe code 2603 to reset the CDF machine.

All the individual parameteres of the CDF machine can be foundAttention!in the controller unit. Make sure, the parameters set are the rightones!


DA-calibration, DA-output

From this submenu an external writer can be calibrated (fig. 39).

For the 25pin D-Sub connector following voltages are applied:

channel description pin1 temperature bath 92 target temperature 103 10times difference be-

tween channel 1 andchannel 2

23

4 temperature buffer 24GND 7

Figure 39: Submenu - Da-output.

Misc.

From the submenu Misc. additional settings for the CDF machine canbe done.

• Restart: If this submenu is activated, the CDF machine starts afterthe main power was off automatically.

• Max.Temp.: defines the maximum temperature at which the CDFmachine stops with an error message. In addition, an over-temperatureprotection circuit from the heater is activated.

• Key-Locking: After activating this submenu, the touch screen islocked. The locking of the touch screen can be also done by thekey-switch at the front of the CDF equipment (chapter 4.5).

Figure 40: Submenu - Misc.


6 Software handling with web browser

The CDF testing equipment can largely be connected via its built-in net-work interface. The user interface on the PC is the web browser soft-ware. Enter the IP address of the CDF equipment in the address field ofthe web browser for example 192.168.1.120. After successful connec-tion, the start screen is displayed (fig. 41.

In the upper part of the window the menu bar is lokated showing differenttabs: Schleibinger, Meas. Values, Data, Profiles, System und Help.Click on the tab to open the subdirectories.

Figure 41: Start screen in web browser.

The CDF test equipment can only be started via touch screen onthe CDF machine!Please note:

6.1 Measured Values

The temperature values can be displayed from the submenu Meas. Val-ues in a numerical or graphical format.

For displaying the current measurement data select submenu numericaland click on Start (fig. 42).

For graphical displaying of the measured temperature values select sub-menu Graphical (fig. 43).

The graphical display can be customized. The individual temperaturereadings can be switched on or off by ticking on or off at the correspond-ing tab at the top of the chart.

The adjusment of the x axis takes place in the chart window itself. Forthis, select with the mouse the area that should be displayed. The y-axisis adjusted via the input window above the chart window.

A caption window can be inserted into a chart window by selecting thepaper clip. The update of the measured values will be done by se-lecting the double-arrow symbol. For the zoom out use the symbolmagnifying glass.


Figure 42: Displaying of current measurement data.

Figure 43: Graphical display of measured values.

6.2 Data

The main menu Data contains the submenus Text, Logfile and ClearData (fig. 44).

Figure 44: Main menu - Data.


All recorded measured values are displayed in tabular form after selec-tion Data - Text - Load (fig. 45).

Figure 45: Anzeige der Messdaten in tabelarischer Form.

In the first column the seconds since 01.01.1980 will be displayed. Thesecond column is showing the cycle time in seconds. The date and timein format of Excel are shown in the third column. Format this columnafter transport the data into an Excel sheet as a date / time to get thecurrent time. The data in the following columns are:

• target temperature

• sample temperature

• air temperature

• evaporator temperature

• temperature from the additional temperature sensor

• temperature from the second additional temperature sensor if avail-able.

All columns are separated by tab. The data can be copied directly intoan Excel sheet, Word or similar.

Alternatively, the data can be read in Excel. Select the tab Save Link

as.... A new window with the measured data opens (fig. 46).

Figure 46: Measured values in tabular form for import.


Copy the address

for example: http://192.168.1.193/DATEN/DATA1.TXT

and import the link in Excel via Data - from the web.

Of course, if you use a different IP address for the Slabtester, you willneed to use it.

Tapping on Clear Screen will hide the data.

The experienced user can also read the data with FTP (FileTransferPro-tocol). Log-in name is ftp, user name is also ftp. The data is in thedirectory /http/htdocs/daten. Do not use Internet Explorer for this. Ex-plorer does not behave like ftp. Programs like Wise-FTP or smartftp arerecommended.

All important processes - which are start or stop of the system, errormessages etc. - are monitored after choosing the tab Data - Logfile(fig. 47).

The measured data can be deleted in the submenu Clear Data. Selectthis menu and confirm the deletion by tipping on Erase (fig. 48 . Allprevious measured values will be deleted.

Figure 47: CDF logfile in tabular form.

Figure 48: Submenu - Clear Data.

6.3 Profile

Up to 8 temperature profiles can be defined in the menu Profiles (fig. 49.The individual temperature profiles can be entered or changed both onthe CDF machine itself and via web browser. Select the desired profile 1to 8. The data can now be entered in the corresponding fields (fig. 50).


Figure 49: Selection of the temperature profile from the web browser.

Figure 50: Entering of the temperature profile for the CDF test equip-ment.

• The profile name can be specified unter the profile number. Useshort and concise names as they will be displayed later on CDFtouch screen.

• Enter the number of cycles. If an endless process is desired, themaximum number of cycles 32000 can be entered. With the cyclelength of 24 h, the duration would be about 43 years.

Please note:

• The controller is optimized for the CDF testing. Every change ofthe set profile may worsen the regulation of the controller. In worstcase, this may lead to instalbility of the control.

• The testing equipment has a refrigeration and temperature controlsystem optimized for the CDF testing. Temperatures lower than-20 °C should not be used.


• The cooling liquid becomes viscous at lower temperatures. De-pending on the glycol to water ratio, it may freeze at lower temper-atures. This can lead to the shutdown of the system.

• The pumps are designed for the temperature range of -20 °C to+40 °C.

The profile input can be checked directly in graphic window above theinput mask. If the entry is correct, the profile must be saved. Click onSave Profile below the input mask.

If the changed profile is already selected from the touch screen on theCDF machine, the change will not take effect until CDF equipment isrestarted (switch off and on again). If the new profile is to be driven, thisprofile must be selected via the touchscreen on the CDF machine itself.

6.4 System

The configuration data can be displayed after selecting System - ShowSetup (fig. 32). To view, click on Load. To save the file, the procedure issimilar to saving the measured data (see chapter 6.2).

Figure 51: Main menu - System

6.5 Help

This manual is stored in the submenu Help (fig. 52). Click on Open PDF

Help File to view or download the manual as a PDF file.

Figure 52: Main menu - Help.

7 Technical data 38

7 Technical data

Generaldimension (w x d x h) 225 x 80 x 120 cmweight without cooling liquid approx. 560 kgprotection IP20temperature range -20 °C ... +20 °C

(-40 °C at evaporator)temperate deviation < ± 0,5 °C, except freezing point of

the test fluidtemperature control indirectly via heat transfer fluid

(=cooling liquid)cooling liquid approx. 50 % ethylene glykol

approx. 50 % wateradjusted to -45 °C

volume cooling liquid approx. 100 liters

Environmentanl conditionstemperature range +10 °C ... +30 °Chumidity 20 - 64 %

Testing bathinner dimensions (l x w x d) 170 x 51 x 20 cmmaterial stainless steel 1.4301

Refrigerationsemi-hermetic compressor air cooled

water cooled (optional)refrigerant R448avolume refrigerant approx. 3 kg

Power supplymains 400 V

3PH + N + PE, 50 Hzpower consumption 4.5 ... 8.5 kWsupply fuse 32 A

7.1 Values for the security devices

Refrigerator:overpressure switch: 25 barunderpressure switch: -0.3 barHeater:overtemperature switch: 70 °C, max. 85 °Covertemperature bath sensor: 30 °C

8 Service hints 39

8 Service hints

8.1 Repair and maintenance

Some maintenance work can be done by the user himself. A job list isshowing in the table 2.

For further maintenance (see table 3), our customer service is at yourdisposal. The maintenance work have to be carried out by qualified per-sons only. To ensure the reliability of the system, we recommend havingit serviced once a year. For questions please contact Schleibinger.

Table 2: Do-it-yourself maintenance:maintenance job every

3months

onesa year

Check the frost resistance of the cooling liquid, atleast at -38 ... -45 °C or density @ 20°C 1.072– 1.075 g/cm3. Use of a refractometer is recom-mended.

X

Check and adjust the filling quantity of the coolingliquid in the bath. To do this, stop the CDF ma-chine, place all the sample containers in the bathand check the level of the buffer.

X

Clean the equipment on the outside. Clean thelamella of the heat exchanger. If necessary drainand clean the testing bath.

X

Table 3: Maintenance work by the customer service:maintenance job once a yearCheck the temperature sensor XCalibration of the bath probe at -20°, 0°, 20°C XLeak test of the refrigeration system XCheck safety pressure switch XCheck compressor of the heater XCheck the insulation XChange of the cooling liquid if necessary

Check and exchange (if necessary) magnetic valves XCheck software version of the controller, renew it ifpossible

X

Change the battery of the controller X if necessary but latestafter 3...4 years of run-ning

8 Service hints 40

8.2 Maintenance controller

The main board of the controller includes a lithium battery. Battery typeis RENATA CD1220 lithium. The durability of this battery is about 3years.

For change the battery please proceed as follows:

• Before changing the battery, safe all setting parameters, whichhave been changed. These parameters will not be safed perma-nently and have to be reentered after the change of the battery.

• Switch off the CDF equipment.

• Pull out the mains plug.

• Open the controller unit and remove the acrylic glass cover fromthe main board of the controller.

• Change the battery.

• Fix the acrylic glass cover.

• Switch on the CDF equipment.

• Select the submenu System Menu and perform RAM reset.

• Controll the setting parameters and checkt the setup of PT100 sen-sor.

8.3 Help yourself

In general, the cause of a fault and a suggested solution are shown onthe display. The cause of a malfunction does not necessarily have to beon the device. You can fix simple faults yourself. The following notesshould help you with this.

problem cause helpno circulation inthe testing bathvisible

Fuse of the pump 1 check the fuse F5.1

air in the pump switch the pump off andon several times

fault high pres-sure no.239

immediate start after alonger standstill

switch on the main switchat lest one hour beforestarting

room temperature tohigh

lower the air temperaturein the room

no cooling water, wa-ter input and wateroutput blocked, cool-ing water to warm

check the cooling watercirculation at water out-put.

dirty heat exchanger clean the heat exchanger

8 Service hints 41

problem cause helpfault low pres-sure no.223

freeze protection ofthe cooling liquid tolow

check the density of thecooling liquid and adjust itto at least -40 °C

pump 2 do not run check the fuse F4

valve Y-1 do not work change coil, check thevoltage (24V)

temperature of thebuffer to low

check the buffer probe

leak in the refrigerantsystem

call for service

no input ontouch screen

key switch off switch on the key switch

display off by software switch off and on the sys-tem. Select the menuSetup –> System Menu–> Misc. and deactivateKey-Locking

switch S1 on PCBboard points to the left

turn switch S1 to the right

temperature de-viation

the probe from thetesting bath is not un-der the sample con-tainer

place the probe under thesample container

filling level to low or tohigh

check and adjust the fill-ing level

setting parameters arewrong

check the setup menuand adjust the settings

the machine isswitched off

power failure of phaseL1

check power supply.

power adapter defec-tive

check the yellow LEDs onthe controller board.

system doesnot heat up

triggered fuse check the fuse

error bath to

hot

valve Y-K damaged change the coiln

Tmax set to low check Tmax from SystemMenu.

temperature sensor forthe bath is broken

change probe

to less refrigerant call for service

9 Schematics and data sheets 42

problem cause helpdisplay staysdark afterswitching on themachinel

Power supply is off check fuse F6

fuse blown check melting fuses onthe PCB board.

connection interrupted check the D-Sub cablefrom the controller to thedisplay. Are all yellowLEDs on? If not, call forservice.

error no. 191,fuse F2 is miss-ing

One phase of thepower supply is miss-ing

check in-house fuses andfuses in the controllingunit.

Direction of rotation ofthe power supply is notcorrect.

change the power supplyrotation by exchange oftwo phases from the sup-ply line.

9 Schematics and data sheets

9.1 Fuses

F1 heaterF2 compressor

fan condenserF3 pump 1 (main circulation)F4 pump 2 (buffer circulation)F5 power adapter 24V for controller

display,magnetic valves

F6 recorder (optional)

9.2 Electronics circuit diagram

The current circuit diagram is located in the door of the controller unit.

10 Manufacturer 43

9.3 Refrigeration diagram

10 Manufacturer

Schleibinger Geräte Teubert u. Greim GmbHGewerbestrasse 484428 BUCHBACHGermanyphone: +49 (0) 8086 9473110fax: +49 (0) 8086 [email protected]://www.schleibinger.com

Copyright ©2019 Schleibinger Geräte Teubert und Greim GmbH, Buch-bach, Germany. All rights reserved.

http://www.schleibinger.com

List of Figures 44

List of Figures

1 CDF test equipment . . . . . . . . . . . . . . . . . . . . . 4

2 Set up of the CDF machine. . . . . . . . . . . . . . . . . . 8

3 Level check. . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 Accessing the data logger with a symbolic server name. . 10

5 Readout the IP address to the data logger with the pro-gram chiptool. . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 Accessing the data logger with a fix IP address. . . . . . . 10

7 Configuration of PC for a direct connection with data logger. 11

8 Configuration of the data logger for direct connection us-ing program chiptool. . . . . . . . . . . . . . . . . . . . . . 12

9 Positioning of the samples in the CDF test devoce (here:Kühlflüssigkeit = heat transfer fluid; Prüfflüssigkeit = testfluid; Luft = air; Beton = concrete sample). . . . . . . . . . 13

10 Temperature cycle for the CDF test device. . . . . . . . . 14

11 Cooling system from the CDF test device. . . . . . . . . . 14

12 Basic structure of the CDF test device. . . . . . . . . . . . 15

13 Refrigerant equipment of the CDF test device. . . . . . . . 15

14 Removing of the panels of the CDF test device. . . . . . . 15

15 Filling amount of cooling liquid. . . . . . . . . . . . . . . . 16

16 Refractometer and antifreeze indicator at -36 °C. . . . . . 17

17 Increase the level of cooling liquid in the bath. . . . . . . . 17

18 Level control of the cooling liquid and parameter settingfor the higher heating power. . . . . . . . . . . . . . . . . 18

19 Blocking of the touch screen. . . . . . . . . . . . . . . . . 18

20 Water connectors for cooling water. . . . . . . . . . . . . . 19

21 Main menu on touch screen. . . . . . . . . . . . . . . . . 20

22 Hints for warming up of the system. . . . . . . . . . . . . 20

23 Menu - Status. . . . . . . . . . . . . . . . . . . . . . . . . 21

24 Infomration from the inputs and the temperature. . . . . . 21

25 Menu - Cycle Time. . . . . . . . . . . . . . . . . . . . . . . 22

26 Setup and Target value. . . . . . . . . . . . . . . . . . . . 22

27 Submenu - Profile select. . . . . . . . . . . . . . . . . . . 23

28 Submenu - Profile input (left) and Input (right). . . . . . . 23

29 Temperature profile. . . . . . . . . . . . . . . . . . . . . . 24

30 Submenu - Display (left) and Graph. Display (right). . . . 25

31 Setup of the real time. . . . . . . . . . . . . . . . . . . . . 25

32 Menu Setup –> System Menu. . . . . . . . . . . . . . . . 25

33 Submenu for manual control of the testing machine. . . . 26

List of Figures 45

34 Regulatory parameters of the controller. . . . . . . . . . . 27

35 Setting parameters of the bath. . . . . . . . . . . . . . . . 27

36 Setup of the bath controller. . . . . . . . . . . . . . . . . . 28

37 Setting parameters of the buffer. . . . . . . . . . . . . . . 29

38 Values for the temperature sensor. . . . . . . . . . . . . . 30

39 Submenu - Da-output. . . . . . . . . . . . . . . . . . . . . 31

40 Submenu - Misc. . . . . . . . . . . . . . . . . . . . . . . . 31

41 Start screen in web browser. . . . . . . . . . . . . . . . . 32

42 Displaying of current measurement data. . . . . . . . . . . 33

43 Graphical display of measured values. . . . . . . . . . . . 33

44 Main menu - Data. . . . . . . . . . . . . . . . . . . . . . . 33

45 Anzeige der Messdaten in tabelarischer Form. . . . . . . 34

46 Measured values in tabular form for import. . . . . . . . . 34

47 CDF logfile in tabular form. . . . . . . . . . . . . . . . . . 35

48 Submenu - Clear Data. . . . . . . . . . . . . . . . . . . . 35

49 Selection of the temperature profile from the web browser. 36

50 Entering of the temperature profile for the CDF test equip-ment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

51 Main menu - System . . . . . . . . . . . . . . . . . . . . . 37

52 Main menu - Help. . . . . . . . . . . . . . . . . . . . . . . 37

Documents

Schleibinger CDF/CIF - Freeze-Thaw Testing Equipment · The CDF test machine has a mains connection with a 3x 32A/400V/50Hz CEE connector. As circuit protection 3x 32A are necessary