April 2013 STABILITY METER for HYDROGEN …...- N 2 Cooling Column pirex sets, water refrigerable, to act as sample expansion chamber. - N 2 Pirex Flask (50 ml capacity) to be filled

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57017 GUASTICCE (LI) – Via Spagna,38 – Italy - Tel.: 0586/983060; Fax:0586/983163

e-mail: [email protected] - Cell: 335/7890511-512 – P.IVA: 01006040495

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April 2013

STABILITY METER for HYDROGEN PEROXIDE

S.H.P.

S.H.P. 01_1 - OPERATION MANUAL

P/N: STA 800.0




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INDEX

1. SCOPE

2. SPECIFICATION & INTERFACE

2.1 ELECTRIC INTERFACE

2.2 MECHANIC INTERFACE

2.3 HYDRAULIC INTERFACE

2.4 ENVIRONMENT CONDITIONS

2.5 COMPONENTS SPECIFICATION

3. COMPONENTS

4. PRINCIPLE OF OPERATION

5. USE & OPERATION

6. THEORY OF OPERATION

7. FORMULAS

8. ASSEMBLY INSTRUCTIONS

9. MAINTENANCE INSTRUCTIONS

10. EC DECLARATION OF CONFORMITY

REFERENCES

PROVISIONAL SPARES LIST

APPENDIX 1 – HEAING IMMERSION CIRCULATOR

APPENDIX 3 – DIFFERENTIAL PRESSURE INDICATOR

FIGURES:

1.1. SHP FRONT VIEW

3.1.-3.2.-3.3. COMPOSITION

4.1.-4.2.-4.3. ELECTRIC DIAGRAM & CABLING

5.1.-5.2.-5.3. FLOW CHARTS

8.1.-8.2.-8.3. ASSEMBLY




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1. SCOPE

The SHP device measures the short-term stability or rate of decomposition of Hydrogen Peroxide.

To this purpose a sample solution of Hydrogen Peroxide of known title is maintained at constant

temperature by immersion in a liquid bath, heated by an Heating Immersion Circulator. The bath is

filled with deionized water. A Water Level Device keeps automatically constant the water level

inside the bath.

After a fixed time interval (WARM UP interval), during which the inside pressure is maintained

at ambient pressure level, the device counts, during a fixed time interval (TEST interval), the

number of elementary increments of pressure due to the Hydrogen Peroxide decomposition. At the

end of this time interval, the sample automatically emerges from the bath and the computer device

stores the final number of elementary pressure increments, which gives a measure of the Hydrogen

Peroxide rate of decomposition.

The device is represented (front view) in Figure 1.1.

It can operate, separately and independently, on two samples.

Its functionning is controlled by an industrial PLC, which guarantees:

- automatic independent operation on two samples (instruments);

- immersion and emersion from the bath (through electrical linear actuators);

- preset of Warm Up and Test interval;

- count of number of pressure increments;

- storage of measured values;

- calibration tests to check the accuracy of pressure increment measurements.

The Stability Meter for Hydrogen Peroxide Device is built and certified according to CE

standards.




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2. SPECIFICATION & INTERFACE

2.1 ELECTRIC INTERFACE

The SHP device is supplied at 230 Vac +/-10%. Power consumption is less than 2 KWatt.

2.2 MECHANIC INTERFACE

SHP outside dimensions are: 605 x 800 x 430 mm (LxHxD)

SHP weight is less than 40 Kg.

2.3 HYDRAULIC INTERFACE

The SHP device requires industrial refrigerating max 2 liter/sec, pressure < 2 Bar (rel.) and

deionized leveling water, max 5 liters/hour.

2.4 ENVIRONMENT CONDITIONS

The equipment is designed to operate:

- internal use (laboratory conditions)

- ambient temperature between 5 and 40 °C

2.5 COMPONENTS SPECIFICATION

The SHP device includes the following basic components.

- N° 1 PLC Model ELCON EC601Xwith the following characteristics:

- Central Unit H83003, 16 Mhz

- Monitor Back-Lighted 4x20

- Keyboard 32 Keys

- Memories: 2 Mbit RAM; 2 Mbit Flash

- Inputs: 12 Digital

- Outputs: 12 Digital

- Supply: 24 Vdc, 20 Watt

- N° 2 Differential Pressure Switches - Model DPI 2500-2R-AZ-D (switch at 80 Pascal).

Calibration and settings are described in Appendix 2.

- N° 2 Electrically operated (24 VDC) linear actuators for sample immersion/emersion operation -

Model SKF composed of:

- actuator: CALA36X150X4G6/D24T2

- end-course switch: CAXC 33

- N° 1 Heating Immersion Circulator Model JULABO EH JU9.118.0 /1.1 KWatt

- Operating temperature range: Ambient to +200°C.Selected operating temperature = 96°C.




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- N° 2 Cooling Column pirex sets, water refrigerable, to act as sample expansion chamber.

- N° 2 Pirex Flask (50 ml capacity) to be filled with the Hydrogen Peroxide solution sample (25 cc

nominal value).

- N° 2 Compensation Electrovalves Model CKD -3PA210-06G-B0-24VDC.

- N° 2 Proximity Switches Model SCHNEIDER RS 444-3243 to control the bath door opening

- N° 4 Micro Switches RS 197-7709 for safety during column movements.

- N° 1 PCB card for signal conditionning towards PLC (in/out).

- Outer P.V.C. case, mounted on a metallic frame.




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3. COMPOSITION

The equipment S.H.P, P/N STA 800.0_0 is built according to the following Part Lists. N° P/N Level 0 Level 1 Level 2 Description _______________________________________________________________________ 1 400-02 X LP400.2 Assembly S.H.P. 2 401-02 X LP401.2 Main Frame 3 402-02 X LP402.2 Bath & Heating 4 403-02 X LP403.2 Instruments Plate 5 404-02 X LP404.2 Actuator 6 405-02 X LP405.2 Electronics 7 406-02 X LP406.2 Water Level 8 407-01 X LP407.1 Calibration Box




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PART LIST LP400.2

LEVEL 1 ASSEMBLY: S.H.P.

P/N 400-02 Rif: Fig. 1.1

N° Q.ty DESCRIPTION P/N Rif. -------------------------------------------------------------------------------------------------------------------------- 1 1 MAIN FRAME 401-02 Fig.3.1 2 1 BATH & HEATING 402-02 Fig.3.1 3 2 INSTRUMENTS PLATE 403-02 Fig.3.1 4 2 ACTUATOR 404-02 Fig.3.2 5 1 ELECTRONICS 405.02 Fig.3.2 6 1 WATER LEVEL 406.02 Fig.3.1 7 1 CALIBRATION BOX 407.01 Fig.3.3




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PART LIST LP401.1

LEVEL 2 ASSEMBLY: MAIN FRAME

P/N 401-02 Rif: Fig. 3.1

N° Q.ty DESCRIPTION P/N - Code - Drawing -------------------------------------------------------------------------------------------------------------------------- 1 1 Metal Base Frame 970101_C 2 1 PVC Base Frame 970103_B 3 1 Left Side 970104_B 4 1 Right Side 970105_B 5 1 Instrument Front 970106 6 1 Bath Front 970107_B 7 1 Top Cover 970108 8 1 Staff 970109_B 9 1 Rear Cover 970110 10 13 Self-tapping screw TBIC fi3.5x16 11 5 Self-tapping screw TBIC fi3.5x25 12 64 Self-tapping screw TSIC fi3.5x20 13 20 Self-tapping screw TBIC fi2.9x16 14 4 Levelling foot RS331-4166 (M8x25) 15 2 Water connections Inner Diameter = 8mm 16 1 Label CE 17 1 Label High Temperature 18 2 Label IN – OUT 19 1 Label Gamba e Botteghi snc 20 2 Actuator Safety Switch RS 122-9280




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PART LIST LP402.2 LEVEL 2

ASSEMBLY: BATH & HEATING P/N 402-02 Rif: Fig. 3.1

N° Q.ty DESCRIPTION P/N - Code - Drawing -------------------------------------------------------------------------------------------------------------------------- 1 1 Heating Immersion Circulator JULABO-EH JU9.118.0 2 2 Proximity Switch SCHNEIDER rs 444-3243 3 1 Bath 970130_C (BBC) 4 1 Bath Cover 970112_B (BRUSA) 5 1 Thermostat Support 970115 6 1 Forward Doors Guide 970118_B 7 1 Backward Doors Guide 970119_C 8 1 Doors Separation 970125 9 2 Door 970126_B 10 1 Door 1 Handle 970128_B 11 1 Door 2 Handle 970127_B 12 4 Screw TCEI M4x20 13 2 Screw TCIC M5x15 14 18 Screw TCEI M3x15 15 18 Helicoil fi 3 16 4 Screw TCEI M6x40 17 1 Screw TCEI M4x10 18 4 Screw TSEI M3x10 19 4 Self locking bush M6




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PART LIST LP403.2

LEVEL 2 ASSEMBLY: INSTRUMENTS PLATE

P/N 403-02 Rif: Fig. 3.1

N° Q.ty DESCRIPTION P/N - Code - Drawing -------------------------------------------------------------------------------------------------------------------------- 1 1 Base Plate 970113_B 2 2 Column Support 970116_B 3 2 Column Support Closure 970124 4 1 Cooling Column TECNOVETRO 5 1 Flask TECNOVETRO- 50 cc – CONE 14/23 6 1 Pressure Switch DPI 2500-2R-AZ D(Switch at 80Pa = 8 mm H2O = 0.8 mBar) 7 1 Electrovalve CKD - 3PA210-06G-B0-24VDC 8 4 Screw TCEI M5x20 9 2 Screw TCEI M5x12 10 4 Screw TSEI M5x12 11 2 Screw TSEI M4x12 12 2 Screw TSEI M3x12 13 2 Nut M4 14 1 Plexiglass Cover 220213_B 15 2 Pommel RS 702-7532 (fi22 M5x10) 16 2 Emergency Micro Switch RS 197-7709 17 2 Silicon Tubes Ext.Diam. = 6mm 18 1 Label “1” or “2” 19 1 Coupling Ring Metallic 20 1 Rubber Pass-through 21 4 Rubber Strip




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PART LIST LP404.2

LEVEL 2 ASSEMBLY: ACTUATOR

P/N 404-02 Rif: Fig. 3.2

N° Q.ty DESCRIPTION P/N - Code - Drawing -------------------------------------------------------------------------------------------------------------------------- 1 1 Bearing Slot ROLLON-AS35T-400 2 1 Angle Slot 970114 3 2 Instrument Plate Support 970117 4 1 Electric Actuator SKF - CALA36X4G6/D24T2 5 2 End Course Sensor SKF - CAXC 33 6 1 Actuator Base Plate 970120 7 1 Actuator Register 970121 8 1 Actuator Base Pivot 970122 9 1 Actuator High Pivot 970123 10 3 Screw TSEI M6x10 11 4 Screw TCEI M6x10 12 4 Washer fi 6 13 4 Screw TCEI M5x10 14 4 Washer fi 5 15 4 Screw TCEI M6x15 16 1 Nut M8 17 1 Washer fi 8 18 1 Nut M12 19 2 Seeger shaft fi 9.6




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PART LIST LP405.2

LEVEL 2 ASSEMBLY: ELECTRONICS

P/N 405-02 Rif: Fig. 3.2

N° Q.ty DESCRIPTION P/N - Code - Drawing -------------------------------------------------------------------------------------------------------------------------- 1 1 PLC ELCON - EC 601X 2 1 EMI Filter RFI 1 phase – RS 219-2819 3 1 Transformer 160VA-2x18 – RS 223-8774 4 1 Printed Circuit Board CAD LINE 5 1 Mag.therm.Diff.Switch BTICINO C40 V(400V-25A-30mA) 6 4 Nut M4 7 4 Washer fi 4 8 2 Self-tapping screw TCIC fi3.5x8 9 1 Screw TCEI M5x65 10 1 Nut M5 11 1 Washer fi 5 12 2 Screw TSEI M6x70 13 4 Nut M6 14 1 Omega Staff L=125 15 1 Cable-press fi 22 16 1 Diode Bridge 8A-200V (RS227-8564) 17 6 Relais 8A-24V - RS680-3678 18 8 Diode 1N4004-400V – RS 628-9029 19 1 Electrolytic Capacitor 10000uF – RS339-7048 20 1 Capacitor 0.1uF 21 1 Fuse 2A-250V




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PART LIST LP406.2

LEVEL 2 ASSEMBLY: WATER LEVEL

P/N 406-02 Rif: Fig.

N° Q.ty DESCRIPTION P/N - Code - Drawing -------------------------------------------------------------------------------------------------------------------------- 1 1 Body 970131 2 1 Level Column 970132 3 1 Level Control 970133 4 1 Water Supply 970134 5 3 Self-tapping screw TSIC fi4.8x40 6 1 Washer fi 12/20 7 4 OR Parker 5-612 8 1 OR Parker 2-11 9 2 Water connections Inner Diameter = 8mm




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PART LIST LP407.1 LEVEL 2

ASSEMBLY: CALIBRATION BOX P/N 407-01

Rif: Fig. 3.xxx

N° Q.ty DESCRIPTION P/N - Code - Drawing -------------------------------------------------------------------------------------------------------------------------- 1 1 Watertight suitcase RS 6662297 2 1 Dosimetric Pump STEPDOS03/S KNF FEM 03 TT-18 S 3 1 Bottle 100 ml Franceschi BTLSVL100 4 1 Set of tubes ……. 5 1 Label Gamba e Botteghi snc




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4. PRINCIPLE OF OPERATION

The SHP operations are controlled by a PLC, which interfaces with device sensors and actuators

through its digital input and output and through a PCB card. The PLC controls the operations of two

instruments: N°1 (left) and N°2 (right) at the same time.

With reference to Fig. 4.1- ELECTRIC DIAGRAM, the 230 VAC power supply is routed through

an ON/OFF switch (with ELCB internal protection) to supply directly the Heating Immersion

Circulator and through an EMI Filter the PCB card, Fig. 4.2-PCB Schematic. The card sends

through a fuse the input power to a transformer which a 18 VAC output. The output goes to the

diode bridge rectifier D9 and capacitors C1, C2 for a 24 VDC output voltage which supplies the PC

board, the PLC, the two pressure switches, relais and actuators.

Fig. 4.3 details the PCB Layout and Fig. 4.4. the SHP cabling.

Digital Output from PLC are

OUT 1 (O1): 1=> ACTUATOR N°1 UP

OUT 2 (O2): 1=> ACTUATOR N°1 DOWN

OUT 3 (O3): 1=> ACTUATOR N° 2 UP

OUT 4 (O4): 1=> ACTUATOR N° 2 DOWN

OUT 5 (O5): 1=> ELECTROVALVE N° 1 CLOSED

OUT 6 (O6): 1=> ELECTROVALVE N° 2 CLOSED

Drives to the actuators are routed through relais K1, K2, K3, K4, with smoothing diodes D1, D2,

D3, D4 in parallel. O5 and O6 drive directly the valves, with smoothing diodes D5, D6 in parallel.

Digital Inputs to PLC are:

INP 1 (I1): 1=> DOOR N° 1 OPEN

INP 2 (I2): 0=> END COURSE LOW ACTUATOR N°1 ON

INP 3 (I3): 0=> END COURSE HIGH ACTUATOR N°1 ON

INP 4 (I4): 1=> DOOR N°2 OPEN

INP 5 (I5): 0=> END COURSE LOW ACTUATOR N°2 ON

INP 6 (I6): 0=> END COURSE HIGH ACTUATOR N°2 ON

INP 7 (I7): 1=> PRESSURE SWITCH N° 1 ON

INP 8 (I8): 1=> PRESSURE SWITCH N° 2 ON

INP 9 (I9): 0=> EMERGENCY PANEL N° 1

INP 10 (I10): 0=> EMERGENCY PANEL N° 2

Inputs from the proximity switches of the doors are passed through relais K5 and K6, with

smoothing diodes, before entering the PLC.




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5. USE & OPERATION

To operate the S.H.P. device is needed to connect electric (230 V.A.C.) and water supply.

Switching-on power (the switch is on the left side of the device), the instrument, including

Circulator, is automatically activated. Before starting with test, wait some minutes for reaching

thermostat set temperature (programmable, nominal value = 96°C).

The annex flowcharts detail the way to operate the device and are mostly self explaining. Red

rectangles, written in corsive, represent displayed data. Black rectangles represent actions

performed by the device. Green rectangles represent actions to be performed by the operator.

At switch-on, the device raises the two water cooled columns up to high endcourse switches and

opens the two elettrovalves (columns connected to the atmosphere) =>RESET RUNNING –

WAITING EC’S. Then the display shows the ways we can operate:

<1>-->TEST.1……………

<2>-->TEST.2……………

<3>-->CALIBRATION….

<4>-->SERVICE………..

A) TEST

With reference to S.H.P. - Flowchart Test Operation, selecting <1> or <2>, one test is activated:

SELECT.DEVICE <1>.<2> The operator is requested: CHECK TEMPERATURE…<ANY> to

check on the thermostat the temperature (nominal value = 96 +/- 1 °C) and to confirm with a

pushbutton. The operator is then requested to open the bath door corresponding to the test in

operation: OPEN DOOR.1…. The operation is checked by a proximity sensor. Then displays:

<ANY>DIVE….

If confirmed by the operator, the column is dived to the endcourse switch low (sample in the

bath) DIVING and warm up timer starts counting down (starting from the warm up set value)

WARMUP…. ALT<4> (i.e. pressing <4> the operation stops). During this phase is also possible to

start another test in section 2: START.<2>.

At the end of warm up time, the electrovalve is closed (column isolated from the atmosphere) and

test timer starts (counting from the test set value). The display shows: 1.TEST….ALT<4>;

1.T:xxxx…HIT:yyy... In fact, during this time, when the pressure difference to the atmosphere

overcomes the value of 80 Pascal = 8 mm column of water (as measured by the differential pressure

device) the electrovalve opens to the atmosphere for the set EV time and then closes again. The

device displays the increased cumulated number of valve openings: HIT:yyy. Also during this phase

is possible to start another test or stop the running test.

At the end of test time, the electrovalve is opened and the column raised to endcourse switch high.

The final number of electrovalve openings is displayed and stored in computer archive.

The display shows also the computed short term stability: STAB = X.YY ml/min.




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B) CALIBRATION

With reference to S.H.P. - Flowchart Calibration Operation, selecting <3> Calibration is

activated. The operator is then requested to select between instrument <1> or <2> . Then according

to paragraph Theory of Operation is requested to connect to the column of the selected device

and drip-feed through a pump in a separated box distilled water at a rate of 0.25 ml per minute.

During this phase, the display shows: CALIB.DEV.1.<ANY>; TIMER DROP:<xxxxx>. Through the

running of the timer, the operator can check that the drops of water are steady state at a rate of

approx. 1 bubble every 10 seconds or 6 bubbles per minute When the rate is estimated regular,

pressing a pushbutton, the operator closes the electrovalve and starts the calibration test. During this

phase the display shows: CALIB.DEV.1 RUNNING; 1.T:xxxx..HIT:yyy. No operator intervention is

requested.After 20 minutes (= Calibration Time = Test Time) are past, from the beginning of the

test, the PLC stops the calibration test. The electrovalve is opened and calibration results are

displayed and archived. The display shows: RESULT.CALIB.DEV.1; HIT: yy;<ANY>RETURN.

Pressing a pushbutton, we can return to the main menu’ for another operation.

C) SERVICE

With reference to S.H.P. - Flowchart Service Operation, selecting <4> Service Operations are

activated. The operator is requested to input a 4 digit key to enter in Service menu’.

If OK, the operator can:

1 - Change (or verify) device parameters, whose nominal values are:

- Test Time = Calibration Time (in seconds): nominal value 1200

- Warm Up Time (in seconds): nominal value 1200

- Electrovalve opening time (in tenths of millisecond): nominal value 50 (= 0.5 sec.)

2 - See and scroll archive data. The last 100 test (or calibration) data are stored. The archive reports:

- Archive position

- Date and time of test

- Device (1 or 2) used, related final number of Hits, computed short term Stability

- Calibration if the test was a calibration test. In this case device reference numbers are 10

or 20 instead of 1 or 2.

3 - Cancel all archive data.




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D) OTHER OPERATIONS

According again to S.H.P. - Flowchart Service Operation, from the Main Menu it is possible to:

1- Stop the Program pressing the key STOP..

2- Update the P.L.C. stored programs switching off, and then simultaneously pressing SHIFT and

SWITCHING ON. This operation requires to connect to a Main Computer through a serial line.

New programs run automatically at the end of loading.

E) SAFETY

Two safety switches (EMERGENCY SWITCH) are located on top and bottom of each Instrument

Panel. They interrupt machine operations if the operator touchs these points or tries to put a finger

inside the machine slots. They have been inserted to avoid possible injury to careless personnel.

Two other magneto-thermic switches located in the left part of the device and in series with

emergency switches, interrupt heavy consumptions (in case of block) of the actuators (ACTUATOR

SAFETY SWITCH). In the two cases on the display appears SWITCH OFF POWER. To restart it is

requested to rearm magnetic switches, switch off and then switch on the machine.




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6. THEORY OF OPERATION

The S.H.P. device is utilized to derive the short term stability of Hydrogen Peroxide solutions

through the measurement of the oxygen volume which is developed by the Hydrogen Peroxide

sample, kept at fixed temperature for a fixed time.

The procedure foresees the following steps:

a) a thermal fluid bath, filled with deionized water, kept at fixed Tb = 96 °C temperature;

b) a flask containing a volume (Vol) = 25 cc (+/- 0.1 cc) of Hydrogen Peroxide solution of known

title A (g/Kg). The corresponding weight (W) is :

W (g) = Vol (cc) * ( 1 + 0.4 * A / 1000 )

c) connect the 50cc flask to a cooling column, externally refrigerated by streaming water at

temperature (Tw);

d) deep the flask in the bath, keeping the cooling column connected to the atmosphere (electrovalve

open) for a fixed warm-up time of 20 minutes;

e) isolate the column, by closing the electrovalve for a fixed test time (tt) of 20 minutes. During this

time, according to the oxygen development, the inner column pressure increases over the

atmosphere. When the pressure difference overcomes the value of 80 Pascal = 8 mm column of

water (as measured by a differential pressure device) the valve opens to the atmosphere to

compensate for a fixed EV-open time of 500 milliseconds. The device keeps note of the number of

valve openings to derive the short term stability value.

f) After test time, let emerge the cooling colums from the oil bath and disconnect the flask from the

column.

g) Once per month perform a device calibration according to the following procedure.

Connect an empty flask to the cooling column and let the flash outside from the bath. Open the top

cover of the column and connect to a CALIBRATION BOX, which includes a small bottlet filled

with distilled water and a dosimetric pump. Connect and drip-feed the column from the top at a

nominal rate of 0.25 ml/min. When the rate is constant, start calibration from the S.H.P. device.

After 20 minutes (=CALIBRATION TIME = TEST TIME) are past calibration measurements are

stopped and stored. The stored value is the HITCAL reference value. The dosimetric pump can be

stopped and connection removed.




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7. FORMULAS

Given:

A (g/Kg) : Title of the Hydrogen Peroxide solution;

V (cc) : Volume of gas developed during test time;

tt (sec) : Test time;

tref = 60 sec : Reference time;

Tw (°C) : Temperature of cooling water;

W (g) : Weight of sample under test = Vol (cc) * (1 + 0.4 * A / 1000 );

Wref = 1000 gr : Reference weight;

M = 34 g = 1 mole of Hydrogen Peroxide;

Vref = 22400 cc = volume occupied by one mole at standard conditions;

HIT : number of pressure switches during the test;

HITREF : number of pressure switches during calibration ( VOLREF=5 cc);

P0, Pt (Pa) : Pressure at standard and test conditions;

T0 (=273°K), Tw (°C) : Temperature at standard and test conditions;

we have:

VOLUME OF GAS DEVELOPED DURING TEST: Vt (cc):

(1) Vt (cc) = 5 * HIT / HITREF

VOLUME OF GAS REFERRED TO STD. CONDITIONS: Vtref (cc):

(2) Vtref (cc) = Vt * (Pt/P0) * (T0/Tw)

MASS OF DECOMPOSED HYDROGEN PEROXIDE DURING TEST (STD): Mdg (g):

(3) Mdg (g) = Vtref * 2 * M / 22400

( 1 mole of oxygen derives from two hydrogen peroxide moles)




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DECOMPOSED MASS REFERRED TO 1000 GRAMS OF HYGROGEN PEROXIDE

SOLUTION: Mdg1000 (g):

(4) Mdg1000 (g) = Mdg * 1000 / W

DECOMPOSED MASS (4) REFERRED TO 1000 GRAMS DIVIDED SOLUTION TITLE (A) in

terms of gr/Kg:Mt

(5) Mt (g) = Mdg1000 / A

The H2O2 Stability meter computes and stores volume decomposition rate (dr) per minute during

the test:

STAB = VOLUME DECOMPOSED (ml/min) is given by:

STAB = ( VOLREF*HIT / HITREF ) * (Tref/ tt) = (300 * HIT) / (HITREF * tt)

Another interesting formula, assuming Pt=P0; T0=273; Tw=288;T0/Tw=0.948, is (6), referred to:

- 1 hour (decomposed mass per hour ref. to a 1000 grams solution divided solution title (A),

or:

Mt = 0.948*(68/22400)*(1000/W)*60*STAB/A

For low title solutions:

Mt = 6.9* STAB/A

(developed H2O2 mass(g) per hour, per title, per 1000 gr of low title solution)




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8. ASSEMBLY INSTRUCTIONS

UNPACK

Unpack the equipment and accessories and check for damages incurred during transit. These

should be reported to the responsible carrier and a request for a damage report should be made

.These instructions must be followed fully for us to guarantee our full support of your claim for

protecting against loss from concealed damage.

For assembly, reference is made to Fig. 8.1. - Assembly, Fig. 8.2 - Cooling column, Fig. 8.3. -

Assembly (Rear).

POSITIONNING

Place the SHP equipment on a stable, flat workbench. If necessary use the four foots (1) in the

bottom for levelling.

ASSEMBLY INSTRUMENT PLATE

This operation is requested in case the Cooling Column is shipped separately from the Instrument

Plate.

Assembly one instrument plate per time. For this operation first hand unscrew the two pommels

(2) and remove the plexiglass cover. Unscrew and remove the two Column Support Closures (3).

Place in position the Cooling Column, handling with care and keeping it in the upright position

(black plug high). Connect (B) and (A) of the Cooling Column to the rubber tubes exiting from the

instrument plate (IN and OUT of water entry). Mount again the two Column Support Closures (3)

keeping the water tubes horizontal and tightening slightly in order to avoid rupture of the Cooling

Column. Connect the rubber tube exiting from the Electrovalve (4) to (C) of the Cooling Column.

Connect the rubber tube exiting from the Pressure Switch-HI (5) to (D) of the Cooling Column.

Install again the plexiglass cover and hand screw the two pommels (2).

Repeat the operation for the next instrument plate.

WATER CONNECTION

Connect the plant water entry (requirements as per para 2.3) to point (6) - IN of SHP instrument

through a flexible rubber tube (inner diameter = 10 mm). Tighten with a fastening clip.

Connect the deionized water entry through a flexible rubber tube to point (11) - IN. Adjust the tap

for minimum flow.

Connect point (7) and (12) - OUT of SHP equipment to plant water disposal through a similar

flexible rubber tube.

Remove the SHP rear cover (unscrewing the 14 self-tapping screw).




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Let flow water and verify for no water leakage throughout all the water circuitry.

Reinstall the rear cover.

Water can flow permanently.

THERMAL FLUID FILLING

Open the two doors (8) of the bath.

Fill the bath through one door with deionized water. Visually check through the other door for

filling up to approximately 1 inch from the upper edge. 11 to12 liters of fluid are required.

Adjust the Level Control Tube (10) to get the desired level value.

ELECTRIC SUPPLY

Connect a suitable plug to the cable (9) exiting from the SHP equipment - left side. Blu and

Brown wires are line wires. Yellow-green wire is the earth wire. Connect to a socket for 230 V A.C.

supply (requirements as per para 2.1.).

OPERATION

Operating instruction are given in Chapter 5.

For performing a test, the operator has to wait until the thermostat has reached the set temperature

(Appendix 1 and the JULABO Heating Immersion Circulator Manual gives all the instructions to

change the set temperature), then need to connect a 50cc flask, containing the 25 cc Hydrogen

Peroxide sample solution of known title to the cooling column of one of the instruments and fasten

with a clip. Then we need to operate according to PLC instructions.




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9. MAINTENANCE INSTRUCTIONS

The S.H.P. equipment is designed for continuous operation under normal conditions. Periodic

maintenance in not required.

For cleaning the outside of the unit use a wet cloth.

RECOMMENDATIONS

- Connect the unit through the plug to a grounded mains power socket.

- Note the flash point of the bath medium used. The excess temperature protection should be set at

least 10°C below the flash point.

- Pay attention to the thermal expansion of bath oil during heating to avoid overflowing of the

liquid. If necessary, lower the Level Control Tube (10).

- Regularly check the tubing for material defects (e.g. for cracks) and the workbench below the

instrument to verify bath tightness.

- Before cleanig the unit, disconnect the power from the mains socket.

- Empty the bath before moving the unit.

REPAIRS

For technical assistance report to the manufacter:

GAMBA & BOTTEGHI snc

Via SPAGNA, 38

57017 GUASTICCE (LI)

ITALY


Tf. +39 0586 983060

Fax +39 0586 983163

e-mail: [email protected]

http://www.gambaebotteghi.com/

mailto:[email protected]




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10. EC DECLARATION OF CONFORMITY

The undersigned, representing the following manufacturer

GAMBA & BOTTEGHI snc

Via GALILEI, 381

57019 VICARELLO (LI)

herewith declares the the product

S.H.P.

STABILITY METER FOR HYDROGEN PEROXIDE

is in conformity with the provisions of the following EC directives (including all applicable

amendments)

89/336 “Electromagnetic Compatibility”

73/23 “Low voltage directive”

and that the standards and/or technical specifications referenced overleaf have been applied.

Last two digits of the year in which the CE marking was affixed: 98

VICARELLO (LI) 20 Feb. 1998

............................................................. ..................................

(place) (date)

..............................................................

(signature)

MARIO GAMBA - Legal Representative

.................................................................................




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REFERENCES

References of standards and/or technical specifications applied for this declaration of conformity,

or parts thereof:

EN 50081-1 Issue 1 EMC - Generic emission standard - Part 1: Residential, commercial and

light industry

EN 50082-1 Issue 1 EMC - Generic immunity standard - Part 1: Residential, commercial and

light industry

EN 61010-1 Safety requirements for electrical equipment for measurement, control and

laboratory use - Part 1: General requirements




27

PROVISIONAL SPARES LIST

P/N NAME QUANTITY

402-02-1 Heating Immersion Circulator TBD

402-02-2 Proximity Switch TBD

403-02-4 Cooling Column TBD

402-02-5 Flask TBD

403-02-6 Pressure Switch TBD

403-02-7 Electrovalve TBD

403-02-14 Plexiglass Cover TBD

403-02-16 Emergency Micro Switch TBD

404-02-4 Electric Actuator TBD

404-02-5 End Course Sensor TBD

405-02-1 PLC TBD

405-02-3 Transformer TBD

405-02-4 Printed Circuit Board TBD

402-02-3 Bath TBD

402-02-4 Bath Cover TBD

401-02-20 Actuator Safety Switch TBD




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Appendix 1

HEATING IMMERSION CIRCULATOR

The heating immersion circulator temperature is factory set at 96°C.

The procedures to switch ON-OFF the circulator and to change the set temperature are described in

the following pages.




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Appendix 2

DIFFERENTIAL PRESSURE INDICATOR

Model: DPI 2500-2R-AZ –D : F.S..+/-250 Pa; 2 Rel’ output NC; Self zeroing function: 3” every 10 minutes Rele switch output (NCNO) set at 80Pa = 8 mm H2O = 0.8 mBar. Functions can be set and/or checked scrolling the MENU through the pusbuttons: MENU (to scroll), BACK (return back), OK (confirm), DOWN, UP (modify) and the DISPLAY (corsive) in the following way.

- Press MENU more than 3 seconds; - Unit Pa (Pascal)

(to change setting, press OK, arrows up/down, OK to confirm. To change [Unit to Psel] press the Arrow Down)

- Psel (Full Scale) 250 (Pascal) - rESP 0.5 sec (response time) - rel1 (Relè n.1)

o dirrise (switch with increasing pressure) o S.P.--> 80 Pa ..Set (switch) Point o Hys 2 (Hysteresis = 2 Pascal)

- rel2 ….. idem - zero point calibration: not requested - span point calibration: not requested




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FIGURES




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Fig. 3.3 CALIBRATION BOX




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Fig. 8.3. ASSEMBLY (Rear)

Documents

April 2013 STABILITY METER for HYDROGEN …...- N 2 Cooling Column pirex sets, water refrigerable, to act as sample expansion chamber. - N 2 Pirex Flask (50 ml capacity) to be filled