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EXTRACTS FROM

INSTRUCTION MANUAL

CEX

CHEMICAL REACTORS TEACHING EQUIPMENT

CEX



INSTRUCTION MANUAL

CEX

CHEMICAL REACTORS TEACHING EQUIPMENT

CEX



CEX CHEMICAL REACTORS SERVICE UNIT

IMPORTANT SAFETY INFORMATION

All practical work areas and laboratories should be covered by local regulations which

must be followed at all times. If required, Armfield can supply a typical set of

laboratory safety rules.

Your CEX reactor bench has been designed to be safe in use, when installed, operated

and maintained in accordance with the instructions in this manual. As with any piece of

sophisticated equipment, dangers may exist if the equipment is misused, mishandled or

badly maintained.

Water-Borne Hazards

The equipment described in this instruction manual involves the use of water which

under certain conditions can create a health hazard due to infection by harmful micro-

organisms.

For example, the microscopic bacterium called Legionella pneumophila will feed on

any scale, rust, algae or sludge in water and will breed rapidly if the temperature of

water is between 20 and 45°C. Any water containing this bacterium which is sprayed or

splashed creating air-borne droplets can produce a form of pneumonia called

Legionnaires Disease which is potentially fatal.

Legionella is not the only harmful micro-organism which can infect water, but it serves

as a useful example of the need for cleanliness. Under the COSHH regulations, thefollowing precautions must be observed:

Any water contained within the product must not be allowed to stagnate, ie. the water

must be changed regularly.

Any rust, sludge, scale or algae on which micro-organisms can feed must be removed

regularly, i.e. the equipment must be cleaned regularly.

Where practicable the water should be maintained at a temperature below 20°C or

above 45°C. If this is not practicable then the water should be disinfected if it is safe

and appropriate to do so. Note that other hazards may exist in the handling of biocides

used to disinfect the water.




or contact Armfield. The equipment must not be operated with any of the panels

removed.

To give increased operator protection, the unit incorporates a Residual Current Device

(RCD), alternatively called an Earth Leakage Circuit Breaker, as an integral part of this

equipment. If through misuse or accident the equipment becomes electrically

dangerous, the RCD will switch off the electrical supply and reduce the severity of any

electric shock received by an operator to a level which, under normal circumstances,

will not cause injury to that person.

At least once each month, check that the RCD is operating correctly by pressing the

TEST button. The circuit breaker MUST trip when the button is pressed. Failure to trip

means that the operator is not protected and the equipment must be checked and

repaired by a competent electrician before it is used.

HOT SURFACES AND LIQUIDS

The unit incorporates a pumped electric water heater, and is capable of producingtemperatures that could cause skin burns.

Before disconnecting any of the pipes or tubing:

- Stop all the pumps.

- Leave time for the water to cool

- Check that the temperature is at a safe level

Do not touch any surfaces close to ‘Hot Surfaces’ warning labels, or any of the

interconnecting tubing, whilst the equipment is in use.

CHEMICAL SAFETY

Details of the chemicals intended for use with this equipment are given in the Product

Manuals for the different reactor options available with this equipment. Chemicals

purchased by the user are normally supplied with a COSHH data sheet which providesinformation on safe handling, health and safety and other issues. It is important that

these guidelines are adhered to.

Note:

- It is the user’s responsibility to handle chemicals safely




ARMFIELD LIMITED

OPERATING INSTRUCTIONS AND EXPERIMENTS

CEX CHEMICAL REACTORS TEACHING EQUIPMENT

1. INTRODUCTION 5

2. EQUIPMENT DESCRIPTION 7

2.1 Chemical storage vessels. 7

2.2 Feed pumps 8

2.3 Stirrer control panel 8

2.4 Hot water circulator 8

2.5 Temperature control of reactor 9

2.6 Conductivity measurement of reactor contents 10

2.7 Reactor fitment 10

2.8 Mainsplate at rear of plinth 10

3. OPERATION 11

3.1 Switching-on the unit 11

3.2 Filling the feed tanks 11

3.3 Controlling the feed pumps 11

3.4 Operation of the stirrer (CEM MkII and CEB MkII) 12

3.5 Operation of temperature controller 12

3.6 Operating the console 12

3.7 Calibrating the feed pumps 13

3.8 Operating the CEM MkII 13




5.3 Calibration of the conductivity sensor 16

5.4 Accessing the electrical circuits inside the plinth 17

5.5 Draining the hot water circulator 18

5.6 Temperature controller set-up 18

5.7 Priming the hot water circulator 19

6. APPENDIX 1: INSTALLATION GUIDES 20

6.1 CEM/CEX installation guide 206.2 CET/CEX installation guide 23

6.3 CEB/CEX installation guide 26




1. INTRODUCTION

The Armfield CEX Chemical Reactors Teaching Equipment demonstrates thecharacteristics of the important types of chemical reactor, batch stirred tank reactor

(batch reactor), continuous stirred tank reactor (CSTR) and tubular reactor. Other types

of reactor are demonstrated by separate equipment: CEU, packed bed chemical and

enzymic reactors; and CEP MkII, continuous stirred tank reactors in series.

The reactors available for use with CEX are as follows:

- CEB MkII batch reactor

- CEM MkII CSTR

- CET MkII Tubular reactor

There is a mounting position on CEX for any one of the reactors above. Reactors are

interchangeable. CEX is in effect the bench providing the services required by each of

the reactors such as dual peristaltic pumps for feed delivery, a hot water circulator or

chiller (optional) for constant temperature operation, and sensors – temperature and

conductivity. CEX can be operated with the IFD6 interface device to allow computer

data logging. Below CEX is shown with the CEM MkII:



CEX CHEMICAL REACTORS SERVICE UNIT CEX CHEMICAL REACTORS SERVICE UNIT




2. EQUIPMENT DESCRIPTION

The chemical reactors service unit consists of a moulded ABS plinth which is used as a

mounting for the Chemical reactor to be used. It also provides the ancillary services for

the reactor.

armfield

CHEMICAL REACTOR SERVICE UNIT

CEX

FRONT VESSEL REAR VESSEL

TEMPERATURE CONTROL

1

0

CHILL

HEAT

DATA O/P

CONDUCTIVITY mS

SOL.

out 1

MTW11lae

°C

CEM CONTINUOUSSTIRREDTANK REACTORTemperature

probe

Conductivity probe

Stirrer plug

BOTTOMOF COIL

TO TOP OF COILAFTER PRIMING

CEX with CEM MkII reactor fitted Plinth

2.1 Chemical storage vessels.

The reagent tank module consists of two glass vessels mounted into a PVC base which

is located on studs in the plinth and held in position by thumbnuts. Drain valves are

fitted to the underside of each vessel and are accessible within the plinth trough.

Rigid standpipes are mounted

in the lids of the vessels




2.2 Feed pumpsTwo variable throughput peristaltic pumps are used to pump the reagents from the

storage vessels to the fitted reactor. The pumps are mounted on control plates mounted

on the front of the plinth.

A remote control facility allows the pumps to be driven from an external 0-5V dc

signal, via the data logging connector.


Manual speed control

Stirrer control panelData logging portsFeed pumps

2.3 Stirrer control panel

CEM MkII and CEB MkII reactors are equipped with agitators driven by electric motor.The control panel is located on the front of the plinth (see above).

2.4 Hot water circulator




R.C.C.B O/P HEATPUMP

STIRRERD.C. O/PCIRCULATOR

OUTPUT A.C. ~ 1A MAX

INPUT A.C. ~

MAINS INPUT240V/1PH/50HZ~

Priming vessel

Rear view showing

hot water circulator

2.5 Temperature control of reactor

Temperature control is achieved by circulation of heated or chilled water through

submersed coils inside the CEM MkII, CEB MkII reactors and the CET MkII. The hot

water circulator is supplied as standard with the CEX service unit whilst the chilled

water circulator (CW-16) can be supplied as an accessory.

A temperature sensor is designed to be used individually with the CEM MkII and the

CET MkII in conjunction with the automatic temperature controller in the controlconsole. The sensor transmits a signal to the controller which then modulates power to

the heating element in the circulator, increasing or reducing the amount of heat put into

the circulating water. The CEB MkII is supplied with its own temperature sensor.

It is possible to run the reactors at temperatures below ambient by disconnecting the hot




Ensure Mains Switchis OFF

armfield

TEMPERATURE

CONTROL

1

0

CHILL

HEAT

DATAO/P

CONDUCTIVITY

mS

SOL.

out 1

MTW 11lae

°C

Temperature

controllerData logging

out ut

Output socket to

drive CW16 chiller

Conductivity

dis la

2.6 Conductivity measurement of reactor contents

A conductivity probe is supplied to be used individually with any of the reactors. The

conductivity is displayed on the meter in units of milliSiemens/cm. During a chemical

reaction, the conductivity of the reacting solution changes as more of the reactants are

converted. This can be monitored and used to determine the degree of conversion and

the rate of conversion.

The conductivity measurement is available for data logging.

2.7 Reactor fitment

Each of the three chemical reactor modules is mounted on identical PVC baseplates

which are designed to stand on the plinth in the space provided and to be secured to the

base by thumbnuts. Full fitment details for each of the reactors is given in theappropriate reactor manual.

2.8 Mainsplate at rear of plinth




3. OPERATION

The apparatus must be set up in accordance with the installation sheet supplied (see

Appendix A for details). Additionally, ensure that you have read the safety information

at the beginning of this manual.

3.1 Switching-on the unit

The unit is switched on using the

switch on the front of the unit. The

circuit breakers and RCD devicelocated at the rear of the unit

should be turned on beforehand.

Both the temperature controller and

conductivity display should

illuminate.

3.2 Filling the feed tanks

Lift the feed tank lids and pour

solutions in from above. A drain

tap is located at the base of each

vessel in order to drain residual

liquid.

3 3 Controlling the feed pumps

armfield

Lid

Drain valve for

each tank

On/off switch




3.4 Operation of the stirrer (CEM MkII and CEB MkII)

Operation is similar to the two feed

pumps. Speed is adjusted using the rotary

switch when the selector switch is set to

manual.

Speed

control

Manual/remote

Data logging

port

3.5 Operation of temperature control ler

TEMPERATURE

CONTROL

1

0

DATA

O/P

CONDUCTIVITY

mS

out 1

MTW 11lae

°C

1

3

24

Temperature is displayed in °C. The set- point temperature is shown by pressing

button 1 and the value adjusted up and

down using buttons 2 and 3 respectively.

The display will revert to the process

temperature after a short period. A light in

the top left hand corner of the display (4)

indicates when the controller output isactive.

3.6 Operating the console

When the CEX is used with the hot water circulator

then switch 9 should be positioned to heat It isTEMPERATURE

CONTROL




3.7 Calibrating the feed pumps

Both peristaltic pumps require calibration so that exact flow rates are known.Calibration should be carried out for both pumps since there may be small differences

between them.

Fill both reagent vessels. Set the feed pump to 2.0 and determine the flow rate by

measuring the volume collected for a defined period. Repeat the procedure for 4.0, 6.0,

8.0 and 10.0 and plot flowrate versus pump speed.

3.8 Operating the CEM MkII

The reactor has a turbine agitator (11)

and baffle (12) arrangement for efficient

mixing and heat transfer.

Temperature in the reactor is controlled

by circulating heating or cooling liquid

through the internal coil (13).

The liquid level in the reactor is

controlled by the position of the stand-

pipe (14). This can be adjusted by

loosening the back nut (15). To operate

at full volume the standpipe is pushed

upwards until the mark etched on thetube is level with the bottom of the back

nut. A stop on the standpipe limits the

lower operating limit to half the full

volume.

SCOREMARK

CEM CONTINUOUS STIRRED TANK REACTOR

11

13

16

15

14

12

When the reactor is not being used it can

be drained through the valve (16).




4. SPECIFICATIONS

4.1 Overall dimensions:

Height: - 0.60m

Width - 1.00m

Depth - 0.50m

4.2 Electrical supply:

CEX-A CEX-B CEX-G

Green/yellow lead Earth (Ground) Earth (Ground) Earth (Ground)

Brown lead Live (Hot) Live (Hot) Live (Hot)

Blue lead Neutral Neutral Neutral

Fuse rating 13A 15A 13A

Voltage 220-240V 110-120V 220VFrequency 50Hz 60Hz 60Hz

4.3 Pin connections

Data logging connectors. Data logging via the telephone sockets is available for Pump

speeds, stirrer speed and conductivity. Pin connections are as follows:

Pin Pump 1 Pump 2 Stirrer speed Conductivity

1 Reserved Reserved Reserved Reserved

2 Not used Not used Not used +12V

3 Signal (0-5V) Signal (0-5V) Signal (0-5V) Signal (0-5V)

4 0V 0V 0V 0V

5 Not used Not used Not used -12V

6 Reserved Reserved Reserved Reserved

Hot water circulator connector has the following pin connections (See also electrical

drawing CBM29654):




4.4 Miscellaneous

Peristaltic pump flow rate: 0-95 ml/min per pumpFeed tank capacity 5 L per tank




5. ROUTINE MAINTENANCE

To preserve the life and efficient operation of the equipment it is important that theequipment is properly maintained. Regular maintenance of the equipment is the

responsibility of the end user and must be performed by qualified personnel who

understand the operation of the equipment.

5.1 General

The equipment should be disconnected from the electrical supply when not in use. After

use the feed tanks, reactor vessel, sump tray and pipework should be washed throughwith water to remove chemical residues and then drained.

5.2 RCD test

Test the RCD by pressing the TEST button at least once a month. If the RCD button

does not trip when the Test button is pressed then the equipment must not be used and

should be checked by a competent electrician.

5.3 Calibration of the conductivity sensor

The conductivity conditioning circuit (which provides the reading from the conductivity

probe supplied with the CEX service unit) is located on a printed circuit board inside

the electrical console. This circuit is calibrated before despatch and should not require

re-calibration. However, should re-calibration become necessary the appropriate

calibration potentiometers can be located using the diagram below.

Ensure the equipment has been connected to the electrical supply and switched on for at

least 20 minutes. To access the PCB remove the front panel from the electrical console

by removing the four fixing screws. It is not necessary to detach the PCB from the front

panel.

Disconnect the conductivity probe from the socket at the left-hand side of the electrical

console. Connect an AC Voltmeter (Range AC mV) to pins 1 and 2 of the vacant socket

and adjust potentiometer VR2 on the PCB to give a reading of 50 mV (RMS) on theVoltmeter (probe excitation voltage).

Disconnect the Voltmeter then reconnect the probe to the appropriate socket having

removed the probe from the appropriate reactor fitted to the CEX.




When the conditioning circuit has been re-calibrated replace the front panel of the

electrical console and re-install the probe in the appropriate reactor on the CEX service

unit.

5.4 Accessing the electrical circui ts inside the plinth

Maintenance of the CEX service unit does not require access to the electrical circuits or

components located inside the moulded plinth. However, in the event of an electrical

problem, it may be necessary for a competent electrician to gain access to the inside of

the mouldings as follows:

Ensure that the equipment is disconnected from the electrical supply (not just switched

off).

Drain any liquids contained in the reagent vessels or reactors.

Unscrew the channel drain valve located in the recess at the left hand end of the

moulded plinth.




Carefully remove the front panel from the electrical console by unscrewing the four

fixings.

Disconnect the electrical connections between the top and bottom plinth sections by

disconnecting the appropriate connectors.

Unscrew the six fixings around the periphery of the plinth top.

Carefully lift the top moulded section away from the bottom moulded section and place

the top section in a suitable location.

The electrical circuits inside the bottom moulded plinth section are accessible.

A circuit diagram showing the mains and DC electrical circuits inside the plinth is

included at the rear of this manual to assist in fault finding.

Should it be necessary to remove the PCB from inside the electrical console then the

PCB connections diagram on page 17 shows the location and function of the electricalconnectors on the PCB to aid re-assembly.

Re-assembly of the top and bottom moulded plinth sections is the inverse of the above

instructions.

5.5 Draining the hot water circulator

It is not necessary to drain the hot water circulator following use in normal

circumstances. However, if the ambient temperature may fall below freezing, especially

if it is intended to transport the equipment to a different location or the equipment is to

be placed in long term storage, then the circulator should be drained to prevent damage

simply by undoing the connections to the reactor and allowing the water to drain under

gravity.

5.6 Temperature control ler set-up

The temperature controller is a three term controller which has been set up and

configured to give the optimum control capability for all three reactor modules. As well

as the heating control for operating




When in configuration mode the parameters can be selected by pressing key (2). To

display the value press key (1) and if necessary change using keys (2) or (3). Store thenew value by pressing key (1).

No key activation within 10 seconds causes the instrument to switch over to basic

functioning.

The following are the correct parameters for the heating cycle:-

Parameter Heating Cooling

1Lo 0.0 0.0

1hi 50.0 50.0

1hy 0.0 0.0

1Pb -7.5 3.5

1it 90 90

1dt 60 60

1ar 35 351ct 04 04

1PF 00 00

2Lo -19.9 -19.9

2hi 99.9 99.9

2hy 0.0 0.0

2ct 05 05

2PF 00 00

dPS 01 01

5.7 Priming the hot water circulator

After draining the hot water circulator or changing the reactor vessels it will be

necessary to prime the pump again. Refer to the installation sheet supplied with the

reactor and also included in the appendix of this manual.




6. APPENDIX 1: INSTALLATION GUIDES

6.1 CEM/CEX installation guide

1MOUNTING THE FEED VESSEL ASSEMBLY

Locating studs

and fasteners

Connect the tubing on

the left hand side of

each of the two feed

pumps to the standpipe

located in each of thereagent vessels. (Left

feed pump to front

vessel, right feed pump

to rear vessel)

Fit the reagent vessel

assembly to the CEX

using the 4 locating

studs and black handnuts

2 MOUNTING THE HOT WATER CIRCULATOR (HWC)

Rear view of CEX showing positioning of HWC

Hoses on the HWC should be orientated as

shown in the diagram




3- Fit the CEM MkII assembly to

the CEX using the 4 locating

studs and black thumbnuts. The

reactor is supported by 3 pillars,

position the reactor on the CEX

so that a single pillar support is

foremost

- Connect the remaining two pipesfrom the feed pumps to the

connectors on the base of the

reactor as shown.

- Connect the conductivity probe

and temperature sensor plugs to

the sockets on the left hand edge

of the control console. Connectthe stirrer plug to the socket

located on the rear of the CEX.

- Fit the conductivity and

temperature sensors to the CEM.

Each probe fits in a gland. The

gland nut should be loosened to

fit the probes and then tightened

to secure them. Probes shouldreach the bottom of the reactor

armfield

CHEMICAL REACTORSERVICEUNIT

CEX


TEMPERATURE

CONTROL

1

0

CHILL

HEAT

DATA

O/P

CONDUCTIVITY

mS

SOL.

out 1

MTW11lae

°C

CEM CONTINUOUSSTIRREDTANK REACTORTemperature

probe

Conductivity

probe

Stirrer plug

BOTTOMOF COIL

TO TOP OF COILAFTER PRIMING

CONNECTION TO ELECTRICITY SUPPLY4

MOUNTING THE CEM MKII ONTO THE CEX

Brown - Live (hot)Blue - Neutral (hot)

Green/yellow - Earth (ground)

Check that the voltage specified on theequipment matches the supply voltage.

NOTE: this unit MUST be earthed.

Ensure that circuit breakers




5 PRIMING THE HOT WATER CIRCULATOR

- Connect suction pipe of the HWC

to a cold water supply (preferably

deionised).

- Switch on the mains switch on the

front of the CEX.

- Adjust the temperature controller

set-point to a temperature below

ambient (see Operation

instructions overleaf).

- Then switch on the pump switch at

the side of the temperature

controller.

Suction pipe

CONNECTING THE HWC TO CEM MKII6

Priming vessel

CEM CONTINUOUS STIRRED TANK REACTOR

1

2

- Connect suction pipe of the HWC (1) to the

connection for the top of the coil (rear).

- Connect the supply pipe of the HWC (2) to

the connection for the bottom of the coil(front).

- Turn on the mains switch and then the pump

switch and refill the HWC expansion tank as

required.

7 CONNECTING TO THE DATA LOGGER (OPTION)




6.2 CET/CEX installation guide

1 MOUNTING THE FEED VESSEL ASSEMBLY

Locating studs

and fasteners

Connect the tubing on

the left hand side of

each of the two feed

pumps to the standpipe

located in each of the

reagent vessels. (Left

feed pump to front

vessel, right feed pump

to rear vessel)

Fit the reagent vessel

assembly to the CEX

using the 4 locating

studs and black hand

nuts

2 MOUNTING THE HOT WATER CIRCULATOR (HWC)

Rear view of CEX showing positioning of HWC

Th l d f h HWC l i h k

Hoses on the HWC should be orientated as

shown in the diagram





armfield

TEMPERATURE

CONTROL

1

0

CHILL

HEAT

DATA

O/P

CONDUCTIVITY mS

SOL.

out 1

MTW11lae

°C

CHEMICAL REACTORSERVICE UNIT

CEX

TEMPERATUREPROBE

AT REAR


TEMP

COND

CEB(OPTION)

3 MOUNTING THE CET MKII ONTO THE CEX

- Fit the CET MkII assembly to the CEX using the 4 locating studs and black

thumbnuts. Position the reactor so that the non-return valve is on the left hand side

of the reactor towards the rear.

- Connect the remaining

two pipes from the feed

pumps to the connectors

on the lid of the reactor

as shown.- Connect the conductivity

probe and temperature

sensor plugs to the

sockets on the left hand

edge of the control

console.

- Fit the conductivitysensor into the housing

on the top of the reactor

as shown. The

temperature sensor fits into a gland on the reactor lid. In both cases the gland nut

should be loosened to fit the probes and then tightened to secure them. Probes

should be inserted fully so that they are submerged and flow holes in the

conductivity probe glass should be positioned so that liquid flows through.

4 CONNECTION TO ELECTRICITY SUPPLY

Brown - Live (hot)

Blue - Neutral (hot)


Check that the voltage specified on the

equipment matches the supply voltage.


TEMPERATURE CONTROL

1

0

out 1

MTW11lae

°C

Ensure that circuit breakers

and RCCD are ON (up)





5 PRIMING THE HOT WATER CIRCULATOR

- Connect suction pipe of the HWC

to a cold water supply (preferably

deionised).

- Switch on the mains switch on the

front of the CEX.

- Adjust the temperature controller

set-point to a temperature below

ambient (see Operation

instructions overleaf).

- Then switch on the pump switch at

the side of the temperature

controller.

Suction pipe

CONNECTING THE HWC TO CET MKII6

Priming vessel

- Connect suction pipe of the HWC (1)

to the overflow pipe mounted high on

the side of the reactor

- Connect the supply pipe of the HWC

(2) to the non-return valve mounted

low down on the left rear side of thereactor.

- Fill the reactor with water, preferably

deionised, using the fill plug on the

top plate of the reactor. Refit the plug.

- Turn on the mains switch and then the

pump switch and refill the HWC

expansion tank as required.1

2

Connect inlet

pipe (1) to here

Connect outlet pipe (2) to here

7 CONNECTING TO THE DATA LOGGER (OPTION)





6.3 CEB/CEX installation guide

1 MOUNTING THE CEB ONTO THE CEX

armfield

TEMPERATURE

CONTROL

1

0

CHILL

HEAT

DATA

O/P

CONDUCTIVITY mS

SOL.

out 1

MTW11lae

°C

CHEMICAL REACTORSERVICEUNIT

CEX

TEMPERATUREPROBE AT REAR


TEMP

COND

CEB(OPTION)

The reactor vessel is set on

a baseplate which is itself

located on four studs on theservice unit and secured by

thumbnuts. The hot water

circulator and feed tanks

provided with CEX are not

required with the batch

reactor configuration.

- The CEB is supplied with its own temperature sensor which fits in the socket on

the side of console dedicated to this purpose. The sensor will not fit any other

socket. Plug in the sensor then insert the sensor into the vessel through the

appropriate gland on the reactor lid.

- The standard conductivity sensor provided with CEX is used with CEB. Plug this

in to the appropriate socket on the side of the control console then insert the

sensor through the remaining gland into the reactor.

- Ensure that both sensors are inserted fully into the vessel without fouling the wall

or other components. Both sensors are secured in the correct position by

tightening the gland nut.

2CONNECTING TO THE ELECTRICITY SUPPLY

Check that the voltage specified on the

equipment matches the supply voltage.


Brown - Live (hot)

Blue - Neutral (hot)






The chiller unit is used when operating temperatures at or below ambient are

required.

- The feed and return hoses for the chiller are connected to the heating coilwithin the reactor. Connections are made through the reactor lid.

- The plug for the chiller solenoid valve connects to the socket on the front of

the control console (see ‘OPERATING THE CONSOLE’ page 12).

- Switch the switch on the control console to ‘CHILL’

N h lli h (I h l i ) i i

CONNECTING THE CEB TO THE CHILLER3




- To enter configuration mode, sequentially press keys (3), (1) and (2) and keep them

pressed for 3 seconds.

- Parameters are selected using key (2) and the parameter value by pressing key (1).Changes are made by pressing keys (2) or (3) and the new value stored by pressing

key (1).

- Parameter values required for chiller operation are:

Param Value Param Value Param Value Param Value

1Lo 0.0 1it 90 1PF 00 2ct 05

1hi 50.0 1dt 60 2Lo -19.9 2PF 00

1hy 0.0 1ar 35 2hi 99.9 dPS 01

1Pb 3.5 1ct 04 2hy 0.0

TEMPERATURE

CONTROL

1

0

DATA

O/P

CONDUCTIVITY

mS

out 1

MTW 11lae

°C

1

3

2

CONNECTING TO THE DATA LOGGER (OPTION)5


4

TEMPERATURE CONTROL

1

0

CHILL

HEAT

DATA O/P

CONDUCTIVITY mS

SOL.

out 1

MTW11lae

°C

IFD6INTERFACE CONSOLE

armfield

4

8MAINS

SOCKET 1POWER

1

5

2

6

3

7

WARNING240V~

240V 2A~ SOCKET 2 POWER 240V 2A~

o

I

o

I

o

I

CONFIGURING THE TEMP CONTROLLER FOR OPERATION WITH CHILLER




Electrical diagram of the hot water circulator

29




30

reactor manual

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