EVS Viscometer Bath - User Manual

Poulten Selfe & Lee Ltd

EVS-TCB Temperature Controlled Bath – for viscosity

User Manual

Poulten Selfe & Lee Ltd

EVS_TCB_V1.03

Russell House, Burnham-on-Crouch, Essex, CM08TE. UK www.psl-rheotek.com

Temperature Controlled Bath – USER MANUAL

Contents Safety ...................................................................................................................................................... 3 Lifting .................................................................................................................................................. 5 Voltage ................................................................................................................................................ 5 Fluids and Solvents.............................................................................................................................. 5 Replacement Parts .............................................................................................................................. 5 Introduction ............................................................................................................................................ 6 Description .......................................................................................................................................... 6 Unpacking ........................................................................................................................................... 8 Technical Specifications .......................................................................................................................... 9 Temperature Controlled Baths ........................................................................................................... 9 Bath Fluids......................................................................................................................................... 11 Coolant Fluid ..................................................................................................................................... 12 Installation ............................................................................................................................................ 13 Location of the bath and ambient Conditions .................................................................................. 13 Left hand side of the bath ................................................................................................................. 15 Front of the bath ............................................................................................................................... 16 Right hand side of the bath............................................................................................................... 17 Top of the bath ................................................................................................................................. 18 Filling the bath with liquid ................................................................................................................ 19 Filling the Coolant Reservoir ............................................................................................................. 20 Connect the power cable .................................................................................................................. 21 Bath Operation...................................................................................................................................... 22 Start up.............................................................................................................................................. 22 Display ............................................................................................................................................... 23 Check list on Start Up ........................................................................................................................ 26 Bath Temperature Set-Point ............................................................................................................. 27 Bath temperature offset ................................................................................................................... 28 Temperature Calibration................................................................................................................... 29 Water Treatment .............................................................................................................................. 30 Cooling power regulation ................................................................................................................. 31 Bath Stirring ...................................................................................................................................... 33 Maintenance ......................................................................................................................................... 34 Fuses ................................................................................................................................................. 35 Consumables ..................................................................................................................................... 37 POULTEN SELFE & LEE LTD

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Temperature Controlled Bath – USER MANUAL Service Parts only .............................................................................................................................. 38 Moving the Instrument ..................................................................................................................... 39 Shipping the Instrument ................................................................................................................... 40 Trouble Shooting................................................................................................................................... 41 Replacement Spare Parts ...................................................................................................................... 43 Solid State Cooling ............................................................................................................................ 43 Viscometer Bath................................................................................................................................ 44 Recommended Accessories .................................................................................................................. 45 F100 digital thermometer ................................................................................................................. 45 PSL Glass capillary viscometers ......................................................................................................... 46 PSL Viscometer Holders and Bench Stand ........................................................................................ 47 Rheotek Polymer Viscometer ........................................................................................................... 48 EVS-TCB inner plate options ............................................................................................................. 49 Revision Log .......................................................................................................................................... 51

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Temperature Controlled Bath – USER MANUAL

Safety The instrument is intended to be used in a laboratory by trained technical personnel.

For safe and correct use, both operating and service personnel should follow the instructions contained in the USER MANUAL when installing, cleaning, and maintaining the instrument.

The following safety precautions must be observed during all phases of operation, maintenance, service, and repair of the instrument.

Failure to comply with these precautions, or with specific warnings elsewhere in the USER MANUAL violates safety standards of design, manufacture, and intended use of the instrument. Poulten Selfe & Lee Ltd assumes no liability for the customer’s failure to comply with these requirements.

Risk Assessment This manual provides guidance on the safe installation and operation of the Temperature Controlled Bath, however, the user should carry out their own full Risk Assessment.

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Temperature Controlled Bath – USER MANUAL The following electronic and hazard symbols may appear on the instrument:

The following notices may appear in this manual:

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Temperature Controlled Bath – USER MANUAL

Lifting The instrument exceeds the weight one person can lift safely.

A minimum of two people are required to lift the instrument safely e.g. to remove the instrument from its packing crate, to lift on to a bench.

Refer to the Technical Specification for the weight of the instrument.

Always lift the instrument from the base.

The instrument should be unpacked carefully, removing any loose packing materials before lifting.

Voltage Access to the left and right hand side panels is necessary. The instrument must be detached from all voltage sources before maintenance, service, repair, or exchange of parts.

For normal operation, the instrument is to be grounded through the AC line cable.

Failure to do so can result in potential shock hazard resulting in serious personal injury.

Use only fuses with the rated current and of the specified type as specified in this manual.

Use only the IEC mains power cable provided.

Fluids and Solvents Observe safe laboratory practices when handling fluids (e.g. bath fluid, coolant fluid) and solvents.

If working with hazardous solvents or flammable liquids, ensure that there is proper ventilation and that adequate protection such as safety glasses, gloves and protective clothing are used.

If dangerous liquids are used, precautions should be taken to limit potential hazards from leaks and/or spillages or fumes through the use of a fume hood or other local extraction.

If there is the potential of explosive gases being released, a fume hood or other means should be used to safely manage that risk.

Replacement Parts Ensure to use only replacement parts as specified in this USER MANUAL. Do not repair the instrument or change parts not listed in this USER Manual. Contact Poulten Selfe & Lee Ltd, PSL Rheotek USA, or local agent for any part not listed.

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Temperature Controlled Bath – USER MANUAL

Introduction Description

The EVS-TCB Temperature Controlled Bath has been designed for use with manual glass capillary viscometers as well as automated Viscometer Control Modules.

EVS-TCB Temperature Controlled Bath

Features - the Viscometer bath comprises of a stainless-steel inner tank with double glazed glass front window. The window is illuminated from the front with LED lighting.

The inner tank accommodates a PTFE paddle stirrer, with heaters and over temperature cut-out device.

Two tank options - are available: 10L with 2 or 3 viscometer positions and 20L with 5 viscometer positions.

Integrated solid-state cooling – optional module recirculates a cooling liquid through a stainlesssteel coil accommodated in the tank. A built-in reservoir holds the coolant with a filling cap situated in the top of the bath at the rear.

High Precision - The bath uses DC power to continuously control temperature to an accuracy of 3 d.p. (decimal places).

Calibration – includes (a) resistance calibration of the internal PT100 temperature probe and (b) a bath temperature calibration at designated set-points of use.

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Temperature Controlled Bath – USER MANUAL

The EVS-TCB Temperature Controlled Bath is suitable for controlling the set-point over a range of temperatures: • •

With integrated cooling – from 20 to 50°C Without cooling – up to 100°C

Four models are available, with 2 tank sizes to accommodate either 1 to 3 viscometers, or up to 5 viscometers.

No. of Positions

Model

Description

1 to 3

EVS-TCB-3-C

EVS TCB with 10L tank and integrated solidstate cooling

1 to 3

EVS-TCB-3-S

1 to 5

EVS-TCB-5-C

Standard EVS TCB with 10L tank and no internal cooling EVS TCB with 20L tank and integrated solidstate cooling

1 to 5

EVS-TCB-5-S

EVS TCB with 20L tank and no internal cooling

The bath is normally supplied pre-configured with the following temperature settings: System Part

Temperature Setting

Internal factory PT100 temperature calibration

0, 40 and 100°C (hard-coded calibration for linearity)

As found calibration at USER designated setpoint of use

e.g. single set point – typically 20,25, 30, 40, 50 or 100°C Note if the USER does not confirm the set-point of use, the bath will be calibrated at a default temperature e.g.

25 or 40°C according to configuration.

Initial offset

As part of the as found calibration

Over-temperature cut-out

10°C above the set-point

Cooling power regulation

Set to % to correspond with USER designated set-point

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Temperature Controlled Bath – USER MANUAL

Unpacking The EVS-TCB Temperature Controlled Bath will be supplied fully assembled except for auxiliary parts such as the over-flow tube and container. Keep the original packing in the event that the bath has to be returned.

Note the bath must be shipped on a pallet.

After unpacking the bath and accessories, you should have the following: Standard equipment: • • • • •

EVS-TCB Temperature Controlled Bath Overflow tube Overflow bottle Power cable 250mL coolant

Optional accessories: •

Silicone oil, bath fluid

The following documents are included: • •

User Manual Bath temperature stability certificate

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Technical Specifications Temperature Controlled Baths Changes or modifications made to the EVS-TCB Temperature Control module not expressly agreed by

NOTICENOTICE Poulten Selfe & Lee Ltd may void the warranty

Temperature Controlled Bath – up to 3 positions Model

EVS-TCB-3 (no cooling) 400mm x 536mm x 450mm

EVS-TCB-3-C (with Solid-State cooling) 400mm x 536mm x 450mm

30kg

40kg

Power Consumption (max)

Voltage: 100 to 240VAC Frequency: 50 to 60Hz 600W

Voltage: 100 to 240VAC Frequency: 50 to 60Hz 830W

Bath filling volume

10L

10L

Temperature range

Up to 100°C

Temperature Accuracy

+/- 0.01°C (or better) 0.001°C

20 to 50°C (maximum 60°C for built in water cleaning cycle) +/- 0.01°C (or better) 0.001°C

2 in single row 3 in single row (optional bath plate) 450W

2 in single row 3 in single row (optional bath plate) 300W

n/a

150W (nominal, maximum)

Permissible bath liquids

Over-temperature cut out Stirrer cut out fault Float level switch (reservoir) Silicone oil

Over-temperature cut out Stirrer cut out fault Float level switch (reservoir) Silicone oil

Bath Illumination

LED

LED

Keypad controls:

Temperature set-point Offset Toggle cooling on/off Toggle light on/off Water clean treatment RS485

Temperature set-point Offset Toggle cooling on/off Toggle light on/off Water clean treatment RS485

Dimensions (W x D x H) Weight (empty) Power Requirements

Temperature resolution Number of viscometer positions

Heating power Cooling power (if applicable) Safety

Communication

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Temperature Controlled Bath – USER MANUAL Temperature Controlled Baths (cont.)

Changes or modifications made to the EVS-TCB Temperature Controlled module not expressly agreed by Poulten Selfe & Lee Ltd may void the warranty

Temperature Controlled Bath – up to 5 positions Model

EVS-TCB-5 (no cooling) 400mm x 536mm x 450mm

EVS-TCB-5-C (with cooling) 400mm x 536mm x 450mm

40 kg

50 kg

Power Consumption (max)

Voltage: 100 to 240VAC Frequency: 50 to 60Hz 600W

Voltage: 100 to 240VAC Frequency: 50 to 60Hz 830W

Bath filling volume (nominal)

18.5L

18.5L

Temperature range

Up to 100°C

Temperature Accuracy

+/- 0.01°C (or better) 0.001°C

20 to 50°C (maximum 60°C for built in water cleaning cycle) +/- 0.01°C (or better) 0.001°C

Number of viscometer positions

5 (3 in front row and 2 in rear row)

5 (3 in front row and 2 in rear row)

Heating power

450W

300W

Cooling power (if applicable) Safety

n/a

150W (nominal, maximum)

Over-temperature cut out Stirrer cut out fault Float level switch (reservoir) Float level switch (bath) Water bath cleaning cycle Silicone oil Filtered water LED

Over-temperature cut out Stirrer cut out fault Float level switch (reservoir) Float level switch (bath) Water bath cleaning cycle Silicone oil Filtered water LED

Temperature set-point Offset Toggle cooling on/off Toggle light on/off Water clean treatment RS485

Temperature set-point Offset Toggle cooling on/off Toggle light on/off Water clean treatment RS485

Dimensions (W x D x H) Weight Power Requirements

Temperature resolution

Permissible bath fluids Bath Illumination Keypad controls:

Communication

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Temperature Controlled Bath – USER MANUAL

Bath Fluids In the case of silicone oil, carefully read the SDS and wear the appropriate PPE

Bath Fluids Specified fluid

Part Ref

Temperature range

Silicone bath fluid, 10cSt Silicone bath fluid, 20cSt Water – soft, decalcified (filtered)*

20417/1 20418/1 n/a

20 to 50°C 50 to 100°C 20 to 60°C

NOTICE

Changes to the specified bath liquids not expressly agreed by Poulten Selfe & Lee Ltd may void the warranty

Water * For use with manual viscometers only. Do not use with automated viscometer systems.

The quality of water depends upon local conditions. Only filtered water shall be used with the EVSTCB bath.

The following types of water should not be used: •

Hard water – due to the high concentration of lime this will lead to the calcification in the bath

•

Ferrous water – can cause corrosion

•

Distilled or deionized water – special properties may cause corrosion in the bath

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Temperature Controlled Bath – USER MANUAL

Coolant Fluid Use only the specified coolant fluid. Carefully read the SDS and wear the appropriate PPE

Specified fluid Non-toxic/eco-friendly Coolant

Coolant Fluid Part Ref RP00253

Temperature range 20 to 40°C*

* Boiling point 100°C.

Do not use water which may harm the components used in the solid-state cooling system including limescale build up and corrosion.

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Temperature Controlled Bath – USER MANUAL

Installation

NOTICE

The ambient temperature of the laboratory should be closely controlled to ensure the best performance of the temperature controlled bath and cooling system

Coolant Reservoir filler cap

Fan for cooling system

Location of the bath and ambient Conditions •

The ambient temperature of the laboratory should be controlled within the range 19 to 24°C. A laboratory temperature higher than 24°C will impair the performance of the cooling system.

•

Ensure that the location of the bath is not in the path of direct sunlight and will not be affected by draughts e.g. air conditioning system

•

Ensure the location is free from vibration

•

Ensure all packing material has been removed.

•

When the bath is placed on a bench, ensure it is level and that there is sufficient space for ventilation behind and to the right-hand side of the bath o o

Fan on the rear – requires 120mm (5”) clearance Fan on the right-hand side – requires 120mm (5”) clearance

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Temperature Controlled Bath – USER MANUAL

EVS-TCB 620mm width (min)

400mm (w) x 536mm (d) x 450mm (h)

•

The required space for the bath is 660 mm (26”) of depth (ensuring 120mm, 5” of clearance behind the bath) and 620mm (25”) of width (ensuring 100mm clearance on the right hand side and 120mm, 5” clearance on the left hand side).

•

Locate the bath on a flat clean surface with sufficient space around the bath for ventilation

•

Check the setting of the over temperature cut-out on the left-hand side

•

Connect the over-flow tube on the right hand side

•

Fill with bath liquid

•

Fill with coolant

•

Connect the power cable Minimum ventilation space around the bath

Ensure adequate ventilation is provided to the right-hand side of the bath (fan for cooling)

100mm (4”)

Min 120mm (5”)

Ensure adequate ventilation is provided to the rear of the bath (fan for cooling) Min 120mm (5”)

Ensure sufficient ventilation space is provided at the rear of the bath as well as on the right-hand side. Inadequate ventilation will cause damage to the bath.

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Temperature Controlled Bath – USER MANUAL

Left hand side of the bath The Temperature Control Relay (TCR) on the left-hand side of the bath should be set to a maximum safe temperature e.g. 10 deg. C above the desired set-point).

•

The left-hand side of the bath includes:

a) Mains power cable (at rear) b) On/off mains power and fuse holder

c) Over temperature cut-out – towards front (TCR) Setting the Over Temperature Relay: Set the maximum temperature so that it is no more than 10°C above the desired setpoint.

For example set-point is 30.00°C, set the TCR to no more than 40°C The temperature range should be selected 0100 and the % Hyst to 0.5

If the RED LED light is illuminated it means that the cut out is active, make sure that the temperature is set higher than the required bath operating temperature.

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Temperature Controlled Bath – USER MANUAL

Front of the bath

The front of the bath includes: a) Temperature display screen b) Heater LED’s c) Cooling LED d) Warning LED

e) Up/down and Select buttons

f)

On/Off button

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Temperature Controlled Bath – USER MANUAL

Right hand side of the bath

Connect the silicone overflow tube to the right-hand side of the bath.

Any liquid overflow will drain into the bottle provided.

The liquid may overflow due to an increase in temperature between the ambient filling temperature and the desired set-point.

Photo – EVS-TCB-3-C bath with one position Viscometer Control Module

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Temperature Controlled Bath – USER MANUAL

Top of the bath

Coolant filler cap

Motor cover

Viscometer inner plate

Note: the Viscometer inner plate is removable – different types of inner plates are available for manual and automated viscometers as well as number of positions (see Recommended Accessories – inner bath plates for more details).

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Temperature Controlled Bath – USER MANUAL

Filling the bath with liquid According to the model, the bath should be filled with the specified type of bath fluid – see Bath fluids.

Preparation steps 1. Ensure that the mains power is disconnected 2. Ensure that the overflow tubing is connected 3. Ensure that the inner tank is free from any debris e.g. packing material 4. Use a wide neck funnel and place in a viscometer aperture 5. Carefully pour the bath liquid into the tank 6. Fill to 5mm below the top of the external window – when looking with your eye at the same level as the surface of the fluid

The final liquid height may need to be topped up at the desired temperature set-point.

NOTICE

Silicone oil will expand as temperature increases. Do not overfill at room temperature.

Once the bath has reached its set-point, if required fill with additional liquid.

Emptying the bath The tank can be emptied by using a syphon “jiggle” tube or pump.

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Temperature Controlled Bath – USER MANUAL

Filling the Coolant Reservoir Use the specified type of coolant fluid – see Coolant fluid in specifications.

Preparation steps 1. Ensure that the mains power is disconnected 2. Unscrew the black cap (situated on top of the bath at the rear on the right-hand side) 3. Use a small neck funnel and place in the reservoir 4. Carefully pour the coolant liquid into the tank 5. Fill to bottom of the threaded neck 6. Remove the funnel and replace the black cap 7. When the bath is turned on, the liquid will be circulated through the cooling system and the reservoir will need topping up, however, always leave some head space (5 to 10mm below the bottom of the threaded part)

5 – 10mm head space

Fill initially to 5 to 10mm below the level of the threaded part of the reservoir.

When the bath is turned on, the level will need topping up, but always leave some head space.

NOTICE

The coolant level will drop when the bath is turned on and the coolant is circulated. Check the filling level after the cooling has been turned on and top up as required.

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Temperature Controlled Bath – USER MANUAL

Connect the power cable The final installation step is to connect the power cable.

Use the IEC power cable provided and plug it into the IEC socket

Mains power ON/OFF

IEC socket and fuse holder

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Temperature Controlled Bath – USER MANUAL

Bath Operation Start up To start the Temperature Controlled Bath: 1. Make sure that the bath is filled with fluid 2. Make sure the coolant reservoir is filled 3. The over-temperature cut-out is set to a safe temperature e.g. 10°C above the required setpoint 4. The module is connected to a power source

Step 5: Power the module ON by first switching the mains power button on the lefthand side (rear),

followed by the ON button on the front of the analyzer.

On power up: • • • • • •

The bath will start stirring and heating The display screen will initialise The actual temperature and set-point will be displayed Circulation of the cooling liquid will be activated The light will be activated Press SELECT for MAIN MENU options

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Temperature Controlled Bath – USER MANUAL

Display Check the display:

Bath symbols (see below)

Cooling (activated) Heating LED’s Warning light

Symbols on display:

*

Cooling activated (Empty box implies cooling is not activated)

~ or S

Not Stable or Stable

=

Keypad activated

Display – showing Cooling turned off

Note HEAT % indicates level of heat input – this should be in the region of 15% indicating some cooling is required.

Action: Toggle Cooling back on

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Temperature Controlled Bath – USER MANUAL

LED’s on Membrane:

Heating LED’s: -

Indicate pulsing of heaters 10L bath has 2 heaters 18.5L bath has 3 heaters

-

The heating % is also displayed on the screen

Cooling LED: -

Blue LED indicates solid state chiller is ON

Warning LED:

-

Indicates a fault (e.g. low coolant level)

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Temperature Controlled Bath – USER MANUAL Keypad: Press the SELECT button to gain access to the MAIN MENU. Then use up and down buttons to select an option. Press SELECT again to access an option.

BATH SET POINT

ENTER BATH SET-POINT Use up and down arrows to adjust temperature to the corrected reference thermometer reading

OFFSET

Enter reference thermometer reading (the +/- offset will then be automatically applied)

WATER TREATMENT

Not applicable for silicone oil use Note this will take the bath up to 65 deg. C and held at this temperature until the bath is turned off.

Toggle Cool Mode

Turns Cooling ON and OFF

Clear Offset

Removes temperature offset

Toggle LIGHT

Turns bath illumination ON and OFF

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Temperature Controlled Bath – USER MANUAL

Check list on Start Up

Wear PPE, including safety glass and gloves when topping up the bath fluid and coolant

Step 1

Check BATH SET POINT – temperature is set to required setpoint

Yes/No (tick)

2

Toggle OFF the chiller to speed up the bath warm up

(Optional)

3

Toggle ON the chiller when the bath temperature is close to the required set-point

(Optional)

4

Once the required bath temperature is reached, check the bath liquid level. If necessary top up with liquid.

5

Coolant level – unscrew the cap and top up with coolant (liquid level should be just below the threaded part on the neck of the reservoir)

6

The bath becomes STABLE (S) when it reaches the required temperature

7

Heating % is between 10 to 20% when the bath is stable

8

If more heat input is required refer to the section on regulating the Cooling power

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Temperature Controlled Bath – USER MANUAL

Bath Temperature Set-Point On Start Up the bath temperature will default to the temperature set up by the factory. This will normally be the USER defined or default temperature at which the as found temperature calibration has been performed.

The user may select a new set-point by pressing SELECT and then BATH SET POINT.

Use the arrows to enter the required temperature – up/down arrows increase/decrease digits, left/right arrows will move cursor

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Temperature Controlled Bath – USER MANUAL

Bath temperature offset The OFFSET can be verified at any time by the operator. Use a calibrated reference thermometer to set the offset – type in the actual temperature – taking into account any correction for the reference thermometer reading. The bath will then automatically apply the offset.

Simply enter the corrected reference thermometer reading. The temperature off set will then be automatically computed and shown on the main display.

For example:

Bath SETPOINT

Reference thermometer reading

Reference thermometer Correction

25.00

25.03

-0.02

NOTICE

Corrected Reference thermometer reading 25.01

Bath OFFSET

0.01

Check the ice-point of the reference thermometer before use. Also, ensure that the uncertainty of calibration is +/- 0.02°C or better.

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Temperature Controlled Bath – USER MANUAL

Temperature Calibration A master “resistance” calibration of the bath is carried out by the factory.

In addition, the bath is calibrated at the desired set-point of use, or if not known at 25°C (model with cooling, or 40°C without cooling).

A certificate of calibration is supplied with the bath confirming the OFFSET to apply from date of first use (see example certificate below).

In use, the customer can carry out their own OFFSET calibration at any point between the minimum and maximum bath operating limits (e.g. 20 to 50°C with integrated cooling or up to 100°C without cooling).

This will require the use of a calibrated reference thermometer – PSL Rheotek recommends the F100 digital contact thermometer, which we can be supplied with a certificate of calibration.

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Temperature Controlled Bath – USER MANUAL

Water Treatment

The user should carry out their own risk assessment regarding using water as a bath fluid.

This option will allow the user to carry out a water treatment heating cycle to ensure that water does not stagnate which could provide an opportunity for Legionella bacteria to proliferate.

Select this option from the MAIN MENU.

The bath will automatically heat to 65°C and hold this temperature for one hour.

Toggle the Cool Mode OFF before starting this cycle.

NOTICE

When working with manual viscometers it may be preferable to use water as the bath medium if the Bath Set Point is 50°C or lower. Only use water as specified in the bath fluids section.

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Temperature Controlled Bath – USER MANUAL

Cooling power regulation This operation requires removing the right-hand side panel. Unscrew the thumbscrews and remove the panel.

Note – the mains power compartment is fully enclosed.

NOTICE

Before adjusting the cooling regulation, follow the checks below.

The Cooling Power Regulation is pre-set by the factory. However, different ambient conditions and/or set-points may require adjustment of the power regulation.

However, before making any adjustments, carefully check the following: •

Ambient temperature of the laboratory – is it between the recommended range of 19 to 24°C (65 to 75°F)?

•

Is there good ventilation to (a) the rear of the instrument 120mm (6”) and on the right-and side 120mm (6”) . This space is required to expel the warm air from the solid state cooling module

Thumbscrews Cooling Power Regulation Board Carefully remove the thumbscrews from the side cover.

Remove the side cover.

Note the mains power is contained in a separate section.

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Temperature Controlled Bath – USER MANUAL Cooling Power Regulation Adjustment

Cooling % will be displayed here

Turn the Cooling Capacity regulator anti-clockwise to increase.

The cooling capacity can be set according the ambient conditions and set-point required.

Nominal settings are: Deg. °C

Cooling % setting

20

50 to 70

25

40 to 55

30

25 to 35

40

0 to 10

Once adjusted the heat input % displayed on the front screen should be around 15%. If the % is lower, increase the cooling %.

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Bath Stirring Stirrer speed The stirrer speed is pre-set by the factory according the bath model.

The stirrer speed is independent of load i.e. a more viscous fluid will pull more current but will not reduce the speed of stirring.

10L bath – set up at factory 1200 rpm (2V) 18L bath – set up at factory 1500 rpm (2.5V) If necessary the stirrer speed can be adjusted by the on-board speed controller (main board on LHS) but this may affect the bath temperature calibration.

Please contact Technical Service at PSL before changing the stirrer speed.

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Temperature Controlled Bath – USER MANUAL

Maintenance Wear appropriate PPE and turn OFF the mains power before carrying out maintenance

To obtain optimum performance and maximum life from the Temperature Controlled Bath, the following maintenance should be observed: Monthly

Check the level of the coolant.

Annually

Remove the right-hand panel (thumbscrews) and check all tubing and connections on the solid-state chiller.

Inspect the filter and replace if it contains any signs of debris.

Inspect the bath oil and if necessary remove from tank, clean the tank and replace oil.

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Temperature Controlled Bath – USER MANUAL

Fuses Part No.

Description

AV1128*

6.3A, 250V fast acting

Qty

Location

2

Mains IEC socket

4

Heater Control Board

(Double fused socket)

JV290

8 A, 250V fast acting (for main board 3 x heaters & 1 x 24V PWR)

*For model EVS-TCB-5-C the 8A fuse is recommended for 100-115VAC. To change a fuse on the IEC socket, follow these steps: Step 1: Power off the instrument and remove the IEC power cable.

Step 2: Locate the mains fuse holder in the IEC socket – place a small screwdriver behind the tab on the top of the fuse drawer to open it.

Step 3: Replace the mains fuse (s).

Step 4: Close the fuse drawer.

Place a small flat screwdriver behind the tab and pull forwards.

Double fuse holder – 2 x fuses

Insert new fuse(s) into holder and push fuse tray back into the IEC socket with a firm push.

A blown fuse may indicate another problem in the instrument. If a replacement fuse blows, seek further assistance.

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Temperature Controlled Bath – USER MANUAL To change a fuse on the Heater Control Board, follow these steps: Step 1: Power off the instrument and remove the IEC power cable.

Step 2: Undo the thumbscrews and remove the side cover on the left-hand side of the bath.

Step 3: Carefully prise out a blown fuse from a heater position or 24 PWR position (note bath may have 2 heaters or 3 heaters depending upon model).

Step 4: push in new fuse

Undo thumbscrews and remove side cover on the left- hand side of the bath

4 x 8A fuses on main board

A blown fuse may indicate another problem in the instrument. If a replacement fuse blows, seek further assistance.

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Consumables Fluids Part Ref RP00253 20417/1 20418/1

Description Coolant Silicone oil, 10cSt Silicone oil, 20cSt

Consumable Parts: Part Ref REP00215 RAP00057 RAP00058

Description In-line filter Pump Cooling fan (on solid-state module)

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Service Parts only The following parts should be returned to Poulten Selfe & Lee Ltd, PSL Rheotek USA, or a suitably qualified service agent: Part Ref EVS-SSC-020

Description Solid State Cooling Module

The Solid-State cooling module has 2 disconnects for easy removal.

The Cooling Module is designed to be serviced by an approved agent, PSL Rheotek USA or returned to the factory.

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Temperature Controlled Bath – USER MANUAL

Moving the Instrument Before moving the Temperature Controlled Bath, follow these steps: Step 1: Turn Off the instrument and remove the power cord Step 2: Empty the tank using a Syphon or pump Step 3: Lift the instrument on to a trolley – 2 people required Step 4: Move to new location Step 5: Follow the installation steps in the manual

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Temperature Controlled Bath – USER MANUAL

Shipping the Instrument Before shipping the Temperature Controlled Bath, follow these steps: Step 1: Turn Off the instrument and remove the power cable Step 2: Empty the tank using a Syphon or pump Step 3: Empty the coolant tank Step 4: Use the original packaging or a wooden shipping crate Step 5: Ensure plenty of foam or packaging material is in the bottom of the case Step 6: Lift the instrument carefully into the packing case – 2 people minimum Step 7: Ensure the packing case is on a pallet

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Temperature Controlled Bath – USER MANUAL

Trouble Shooting

Problem

Recommended action

See Reference

Instrument does not power up

Check the fuses in the IEC mains socket

Fuses

No heating

Check fuses on the heater board

Fuses

No cooling

Check cooling is ON (MAIN MENU)

Unstable bath temperature

Check bath liquid level – top up if necessary to highest level

Main display

Check stirrer is operational Check that there is sufficient coolant in the reservoir Check the heating % on the main display – if it is less than 10%: •

•

Check ventilation on RHS side of bath – the cooling fan must have 120mm of clearance so that the warm air from the cooling system is expelled.

Check cooling % - displayed on Peltier Control Interface Board.

Cooling regulation control

If necessary increase the cooling %.

Low heating %

Reduce cooling regulation

Cooling regulation control

The coolant circulation (i.e. pump) will be stopped if the liquid level is too low.

Filling the Cooling reservoir

(Displayed on main screen) Low coolant level

Unscrew the coolant cap and top up

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Temperature Controlled Bath – USER MANUAL Check for any signs of leaks by removing the right hand side cover of the bath.

High Cooling %

A high cooling % (on the cooling regulator) may indicate that the Peltier elements will need to be replaced.

First check that the bath has adequate ventilation – at the rear and on the right-hand side.

If the cooling power requlation is 90% or more, the cooling module should be exchanged and/or the Peltier elements replaced.

Lights and stirrer not working

Check fuse on 24 PWR position on Main Control board

Red LED - Error

In the event of an Error the RED LED will turn on and an audible alarm will be heard. The error message will be displayed on the OLED screen:

See fuses See Temperature Control Relay (left hand side of the bath)

TCR error – bath heats up beyond the temperature cut out setting on the TCR

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Replacement Spare Parts Solid State Cooling Part Ref RP00253

Solid State Cooling Coolant

EVS-SSC-020

SSC Cooling Module (note this is a service exchange part)

RAP00057

Cooling pump

REP00215

Filter

RAP00081

Power supply for SSC

RAP01000/*

Peltier Driver Board

RAP10200/*

RA Peltier Control Interface Board

RAP00078

Float switch (coolant reservoir)

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Viscometer Bath Part Ref 20417/1

Main bath Silicone oil, 10cSt (for use up to 50°C)

20418/1 REP000667/*

Silicone oil, 20cSt (for use up to 100°C) Heater and Peripheral Control Board

EVS-TCB-TCM

Calibrated temperature control module with display: Embedded System Controller board with OLED screen, temperature measurement board and PT100 probe (factory calibrated module)

RA-1S-004

Temperature Control Relay (TCR)

RA-1S-082/G3

Stirrer Assembly

RP00231

Motor (for stirrer)

RP00232

Coupling (for stirrer)

REP00810

Power supply

JV290

8 A fuse (for main board)

AV1128

6.3A fuse (for IEC socket)

RA-1S-008

Heater assembly (per heater)

RA-1S-007/LED

Front light panel

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Recommended Accessories F100 digital thermometer A calibrated digital contact thermometer should be used to confirm the bath temperature:

The F100 is supplied with a handset, PT100 probe and ISO 17025 certificate of calibration.

The 100 ohm probe has a temperature measuring range -50 to 250°C, 6mm OD x 350mm with DIN plug.

The handset has a display resolution of 0.001°C and can be used with a single or dual sets of probes.

The PSL Calibration Laboratory performs a resistance calibration of the probe and then a temperature calibration of the combined hand set and probe at a range of set-points.

Calibration at 0°C is carried out to provide the user with a reference point for ice-point verification.

Part Ref

Description

F100/A/CAL-4T

Digital reference thermometer – calibrated in accordance with ASTM D445 specification requirements (maximum uncertainty +/- 20mK), including handset, single probe and 4-point calibration at -20, 0, 40 and 100 deg. C

F100/B/CAL-4T

Digital reference thermometer – calibrated in accordance with ASTM D445 specification requirements (maximum uncertainty +/- 20mK), including handset, two probes and 4-point calibration at -20, 0, 40 and 100 deg. C

Options include: second probe, user specified temperature calibration points (e.g., 20, 25, 30, 50, 60, 80°C)

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PSL Glass capillary viscometers A wide range of manual and automated glass capillary viscometers are available for use with the EVS-TCB Viscometer Bath (see www.psl-rheotek.com) For transparent and opaque liquids, PSL recommends the ASTM Ubbelohde – the viscometer constant is independent of temperature and the instrument is easy to fill and operate.

ASTM Ubbelohde viscometer – for kinematic viscosity - ASTM D445, ISO 3104, IP 71 Part 2. Suitable for measuring transparent and opaque liquids. Approximate sample volume 18mL. Supplied complete with certificate of calibration by the PSL Calibration Laboratory (accredited to ISO 17025).

Part Ref

Size

Nominal Constant

Nominal viscosity range mm²/s, cSt

1643/01

0

0.001

0.3 to 1

1643/02

0C

0.003

0.6 to 3

1643/03

0B

0.005

1 to 5

1643/04

1

0.01

2 to 10

1643/05

1C

0.03

6 to 30

1643/06

1B

0.05

10 to 50

1643/07

2

0.1

20 to 100

1643/08

2C

0.3

60 to 300

1643/09

2B

0.5

100 to 500

1643/10

3

1.0

200 to 1,000

1643/11

3C

3.0

600 to 3,000

1643/12

3B

5.0

1,000 to 5,000

1643/13

4

10

2,000 to 10,000

1643/14

4C

30

6,000 to 30,000

1643/15

4B

50

10,000 to 50,000

1643/16

5

100

20,000 to 100,000

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PSL Viscometer Holders and Bench Stand

Metal Viscometer Holders – with a spring clip for easy loading and removal of the glass viscometer.

Part Ref 1842/A1 1842/A2

Description Ubbelohde viscometer holder, Size 0 to 4 Ubbelohde viscometer holder, Size 4C to 5

Viscometer Bench Stand – supplied complete with drip tray and provides a convenient storage arrangement for viscometers immediately before and after use.

Accommodates up to 6 viscometers in holders with 10 drip points for hanging the viscometers upside down to drain.

Part Ref: 20430 Description

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Rheotek Polymer Viscometer RPV-1, RPV-2, and RPV-3 viscometer systems – for dilute solution viscosity – PA, PET, rPET, PVC and other polymers, pulp and cellulose.

The EVS-TCB bath is one of the modules used in the configuration of the Gen. 3 RPV Polymer Viscometer System.

The EVS-TCB bath provides excellent temperature stability at set-points between 20 to 30°C commonly used for dilute solution viscosity.

The bath is designed to accommodate a Viscometer Control Module on top – immediately behind and above the viscometer positions.

Part Ref EVS-TCB-3-C EVS-TCB-5-C EVS-TCB-3-RA

Description Suitable for use with RPV-1 and RPV-3 systems with 1 or 2 measuring positions Suitable for use with RPV-1 and RPV-3 systems with up to 4/5 measuring positions Suitable for use with RPV-2 system with 1 or 2 measuring positions

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EVS-TCB inner plate options Lid options for manual viscometers

2 holes, 51mm (2”) round holes, plus 2 x thermometer holes (8.2mm ID) Part Ref: RPV3-102R

5 holes, 51mm (2”) round holes, plus 2 x thermometer holes (8.2mm ID) Part Ref: RPV3-105R

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Temperature Controlled Bath – USER MANUAL Lid options for automated viscometers

3 holes, 51mm (2”) “D” shape holes, plus 2 x thermometer holes (8.2mm ID) Part Ref: RPV3-103D

5 holes, 51mm (2”) “D” shape holes, plus 2 x thermometer holes (8.2mm ID) Part Ref: RPV3-105D

4 holes, 51mm (2”) “D” shape holes, plus 2 x thermometer holes (8.2mm ID) Part Ref: RPV3-104D

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Revision Log Revision 1.0 - 1.03

Release dates Released January 2022

Summary of changes Editorial only

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