Ate Rte-140 Manual

Instruction and Operation ManInstruction and Operation Man

Instruction and Operation Manualual

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RTE-140 RefrigTE-140 Refrig

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With Analog/Digital ContrWith Analog/Digital Contr

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Rev. 11/17/00

Advanced Test Equipment Rentals

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Instruction and Operation ManInstruction and Operation Man

Instruction and Operation Manualual

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Tabab

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able of Contentsle of Contents

le of Contentsle of Contents

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PREFACEPREFACE

PREFACE Compliance ............................................................................................. 2

Unpacking ............................................................................................... 2

Warranty ................................................................................................. 2

NES-care ................................................................................................ 2

After-sale Support ................................................................................... 2

SECTION ISECTION I

SECTION I

SafetySafety

Safety Warnings................................................................................................. 3

SECTION IISECTION II

SECTION II

General InformationGeneral Information

General Information Description .............................................................................................. 4

Specifications.......................................................................................... 4

SECTION IIISECTION III

SECTION III

InstallationInstallation

Installation Site.......................................................................................................... 5

Electrical Requirements .......................................................................... 5

Plumbing Requirements.......................................................................... 6

Fluids ...................................................................................................... 8

Filling Requirements ............................................................................... 8

SECTION IVSECTION IV

SECTION IV

ControllersControllers

Controllers Controllers...............................................................................................9

Start Up...................................................................................................9

Shut Down ..............................................................................................10

High Temperature/Low Liquid Level Safety ............................................11

15-Pin Accessory Connector ..................................................................12

SECTION VSECTION V

SECTION V

MaintenanceMaintenance

Maintenance Service Contracts ...................................................................................13

Condenser ..............................................................................................13

Reservoir Cleaning..................................................................................14

Algae.......................................................................................................14

SECTION VISECTION VI

SECTION VI

TroubleshootingTroubleshooting

Troubleshooting Checklist .................................................................................................15

Service Assistance and Technical Support.............................................15

APPENDIX NESCOM SOFTWAREAPPENDIX NESCOM SOFTWARE

APPENDIX NESCOM SOFTWARE

SECTION VIISECTION VII

SECTION VII

WarrantyWarranty

Warranty ................................................................................................................17

- 2 -

PrefacePreface

Preface

Products tested and found to be in compliance with the requirements defined in the

EMC standards defined by 89/336/EEC as well as Low Voltage Directive (LVD)

73/23/EEC can be identified by the CE label on the rear of the unit. The testing has

demonstrated compliance with the following directives:

LVD, 73/23/EEC Complies with UL 3101-1:93

EMC, 89/336/EEC EN 55011, Class A Verification

EN 50082-1:1992

IEC 1000-4-2:1995

IEC 1000-4-3:1994

IEC 1000-4-4:1995

For any additional information refer to the Letter of Compliance that shipped with the

unit (Declaration of Conformity).

Retain all cartons and packing material until the unit is operated and found to be in

good condition. If the unit shows external or internal damage, or does not operate

properly, contact the transportation company and file a damage claim. Under ICC

regulations, this is your responsibility.

Units have a warranty against defective parts and workmanship for one full year from

date of shipment. See back page for more details.

• Extend parts and labor coverage for an additional year.

• Worry-free operation.

• Control service costs.

• Eliminate the need to generate repair orders.

• No unexpected repair costs.

Other contract options are available. Please contact Thermo

NESLAB for more information.

Thermo NESLAB is committed to customer service both during and after the sale. If

you have questions concerning the operation of your unit or the information in this

manual, contact our Sales Department. If your unit fails to operate properly or if you

have questions concerning spare parts or Service Contracts, contact our Service

Department.

Before calling,

please

refer to the serial number label on the rear of the case top to

obtain the following information:

- BOM number _________________________

- Serial number _________________________

ComplianceCompliance

Compliance

UnpackingUnpacking

Unpacking

WarrantyWarranty

Warranty

NES-careNES-care

NES-care

ExtendedExtended

Extended

Warranty ContractWarranty Contract

Warranty Contract

After-saleAfter-sale

After-sale

SupportSupport

Support

- 3 -

Section I SafSection I Saf

Section I Safetyety

etyety

ety

WarningsWarnings

Warnings Make sure you read and understand all instructions and safety precautions

listed in this manual before installing or operating your unit. If you have any

questions concerning the operation of your unit or the information in this

manual, contact our Sales Department.

Performance of installation, operation, or maintenance proceduresPerformance of installation, operation, or maintenance procedures

Performance of installation, operation, or maintenance procedures

other than those described in this manual may result in a hazardousother than those described in this manual may result in a hazardous

other than those described in this manual may result in a hazardous

situation and may void the manufacturer's warranty.situation and may void the manufacturer's warranty.

situation and may void the manufacturer's warranty.

Transport the unit with care. Sudden jolts or drops can damage theTransport the unit with care. Sudden jolts or drops can damage the

Transport the unit with care. Sudden jolts or drops can damage the

refrigeration lines. The unit weighs approximately 99 poundsrefrigeration lines. The unit weighs approximately 99 pounds

refrigeration lines. The unit weighs approximately 99 pounds

(45 kilograms) and should be transported with equipment designed to(45 kilograms) and should be transported with equipment designed to

(45 kilograms) and should be transported with equipment designed to

lift that weight.lift that weight.

lift that weight.

Observe all warning labels.Observe all warning labels.

Observe all warning labels.

Never remove warning labels.Never remove warning labels.

Never remove warning labels.

Never operate damaged or leaking equipment.Never operate damaged or leaking equipment.

Never operate damaged or leaking equipment.

Never operate the unit without bath fluid in the bath.Never operate the unit without bath fluid in the bath.

Never operate the unit without bath fluid in the bath.

Above 115°C, never use pure ethylene glycol as a bath fluid.Above 115°C, never use pure ethylene glycol as a bath fluid.

Above 115°C, never use pure ethylene glycol as a bath fluid.

For 220 - 240 volt units supplied without a line cord, use a harmonizedFor 220 - 240 volt units supplied without a line cord, use a harmonized

For 220 - 240 volt units supplied without a line cord, use a harmonized

(HAR) grounded 3-conductor cord, type(HAR) grounded 3-conductor cord, type

(HAR) grounded 3-conductor cord, type H05H05

H05H05

H05VVVV

VVVV

VV-F-F

-F-F

-F, with conductors, with conductors

, with conductors, with conductors

, with conductors

listed below. A suitable cord end is required for connecting to thelisted below. A suitable cord end is required for connecting to the

listed below. A suitable cord end is required for connecting to the

equipment (see unit socket) and must terminate with an IEC approvedequipment (see unit socket) and must terminate with an IEC approved

equipment (see unit socket) and must terminate with an IEC approved

plug for proper connection to power supply.plug for proper connection to power supply.

plug for proper connection to power supply.

Example:Example:

Example: Nominal 1.0 mmNominal 1.0 mm

Nominal 1.0 mmNominal 1.0 mm

Nominal 1.0 mm22

22

2cross section rated 10 Ampscross section rated 10 Amps

cross section rated 10 Ampscross section rated 10 Amps

cross section rated 10 Amps

Unit Socket: IEC - 320 C13Unit Socket: IEC - 320 C13

Unit Socket: IEC - 320 C13

Always turn off the unit and disconnect the line cord from the powerAlways turn off the unit and disconnect the line cord from the power

Always turn off the unit and disconnect the line cord from the power

source before performing any service or maintenance procedures, orsource before performing any service or maintenance procedures, or

source before performing any service or maintenance procedures, or

before moving the unit.before moving the unit.

before moving the unit.

Always empty the bath before moving the unit.Always empty the bath before moving the unit.

Always empty the bath before moving the unit.

Never operate equipment with damaged line cords.Never operate equipment with damaged line cords.

Never operate equipment with damaged line cords.

Refer service and repairs to a qualified technician.Refer service and repairs to a qualified technician.

Refer service and repairs to a qualified technician.

In addition to the safety warnings listed above, warnings are posted

throughout the manual. These warnings are designated by an exclamation

mark inside an equilateral triangle with text highlighted in bold print. Read

and follow these important instructions. Failure to observe these instructions

can result in permanent damage to the unit, significant property damage,

personal injury or death.

- 4 -

-40°C to +100°C

-40°C to +150°C

±0.1°C

±0.05°C

15 lpm at 0' (0 M)

0 lpm at 16' (4.9 M)

800

1000

4 3/4 x 8 x 5

12.1 x 20.3 x 12.7

7.0

26 x 12 3/8 x 19

66.0 x 31.4 x 48.3

Section II General InfSection II General Inf

Section II General Informationormation

ormationormation

ormation

DescriptionDescription

Description The RTE-140 Refrigerated Bath/Circulators are designed to provide tempera-

ture control for applications requiring a fluid work area or pumping to an

external system.

Units consist of a non-CFC air-cooled refrigeration system, circulation pump,

seamless stainless steel bath, work area cover, and a temperature controller.

SpecificationsSpecifications

Specifications

Temperature RangeTemperature Range

Temperature Range

Analog controller

Digital controller

Temperature StabilityTemperature Stability

Temperature Stability1,2,31,2,3

1,2,31,2,3

1,2,3

Analog controller

Digital controller

Cooling CapacityCooling Capacity

Cooling Capacity44

44

4

Watts

BTU/H

Pump CapacityPump Capacity

Pump Capacity

HeaterHeater

Heater

Watts

50 Hz Models

Bath Work AreaBath Work Area

Bath Work Area

(L x W x D)

Inches

Centimeters

Bath VolumeBath Volume

Bath Volume

Liters

Case DimensionsCase Dimensions

Case Dimensions

(H x W x D)

Inches

Centimeters

Power RequirementsPower Requirements

Power Requirements55

55

5115 V, 60 Hz, 16 Amp

220/240 V, 50 Hz, 8.6 Amp

1. Specificationslistedforunits operatingat20°C bathtemperatureusing water.

2. Foroperation below0°C, coveringthe bathwork area mayimprove stability.

3. Forsomeapplications,agitationandstability aboveambienttemperatures maybemay be

improved by connecting a small length of hose between the PUMP INLET and PUMP OUTLET

connections on the rear of the unit.

4. 60 Hertz units, 375 watts for 50 Hertz. Specifications listed for units operating at 0°C bath

temperature,+20°C (+70°F)ambient, usingfluid witha specificgravity of0.5

5. Power Board Transformer Fuse–Analog T 0.5A 250V (Qty 1), Digital T 0.8A 250V (Qty 2)

[T=TimeDelay]

500 @ 0°C

1705 @ 0°C

- 5 -

Section III InstallationSection III Installation

Section III Installation

SiteSite

Site The indentations on the sides of the unit are designed to function as handles.

Lift the unit by the handles and locate it on a sturdy table or bench top.

Ambient temperatures should be inside the range of +50°F to +104°F (+10°C

to +40°C).

Never place the unit in a location where excessive heat, moisture, orNever place the unit in a location where excessive heat, moisture, or

Never place the unit in a location where excessive heat, moisture, or

corrosive materials are present.corrosive materials are present.

corrosive materials are present.

The unit has an air-cooled refrigeration system. Air is drawn through the

front panel and discharged through the rear panel. The unit must be

positioned so the air intake and discharge are not impeded. A minimum

clearance of 12 inches (30 centimeters) at the front and rear of the unit is

necessary for adequate ventilation. Inadequate ventilation will reduce

cooling capacity and, in extreme cases, can cause compressor failure.

Excessively dusty areas should be avoided and a periodic cleaning schedule

should be instituted (see Section VI, Cleaning).

The unit will retain its full rated capacity in ambient temperatures up to

approximately +68°F (+20°C). Above +68°F, derate the cooling capacity 1%

for every 1°F above +68°F to a maximum ambient temperature of 104°F. In

terms of Celsius, derate the cooling capacity 1% for every 0.5°C above

+20°C, to a maximum ambient temperature of +40°C.

ElectricalElectrical

Electrical

RequirementsRequirements

Requirements Line voltage may be easily accessible inside the pump/control box.Line voltage may be easily accessible inside the pump/control box.

Line voltage may be easily accessible inside the pump/control box.Line voltage may be easily accessible inside the pump/control box.

Line voltage may be easily accessible inside the pump/control box.

Always unplug the unit prior to removing pump/control box cover.Always unplug the unit prior to removing pump/control box cover.

Always unplug the unit prior to removing pump/control box cover.

Refer to the serial number label on the rear of the unit to identify the specific

electrical requirements of your unit.

Ensure the voltage of the power source meets the specified voltage, ±10%.

The unit construction provides extra protection against the risk of electric

shock by grounding appropriate metal parts. The extra protection may not

function unless the power cord is connected to a properly grounded outlet. It

is the user's responsibility to assure a proper ground connection is provided.

For 220 - 240 volt units supplied without a line cord, use a harmonizedFor 220 - 240 volt units supplied without a line cord, use a harmonized

For 220 - 240 volt units supplied without a line cord, use a harmonized

(HAR) grounded 3-conductor cord, type(HAR) grounded 3-conductor cord, type

(HAR) grounded 3-conductor cord, type H05H05

H05H05

H05VVVV

VVVV

VV-F-F

-F-F

-F, with conductors, with conductors

, with conductors, with conductors

, with conductors

listed below. A suitable cord end is required for connecting to thelisted below. A suitable cord end is required for connecting to the

listed below. A suitable cord end is required for connecting to the

equipment (see unit socket) and must terminate with an IEC approvedequipment (see unit socket) and must terminate with an IEC approved

equipment (see unit socket) and must terminate with an IEC approved

plug for proper connection to power supply.plug for proper connection to power supply.

plug for proper connection to power supply.

Example:Example:

Example: Nominal 1.0 mmNominal 1.0 mm

Nominal 1.0 mmNominal 1.0 mm

Nominal 1.0 mm22

22

2cross section rated 10 Ampscross section rated 10 Amps

cross section rated 10 Ampscross section rated 10 Amps

cross section rated 10 Amps

Unit Socket: IEC - 320 C13Unit Socket: IEC - 320 C13

Unit Socket: IEC - 320 C13

- 6 -

Plumbing RequirementsPlumbing Requirements

Plumbing Requirements

EnsurEnsur

Ensure the unit is off before connecting tubing to the unit.e the unit is off before connecting tubing to the unit.

e the unit is off before connecting tubing to the unit.e the unit is off before connecting tubing to the unit.

e the unit is off before connecting tubing to the unit.

To prevent damage to the plumbing lines, always support the ¾"To prevent damage to the plumbing lines, always support the ¾"

To prevent damage to the plumbing lines, always support the ¾"

fittings while installing/removing the pumping caps and lines.fittings while installing/removing the pumping caps and lines.

fittings while installing/removing the pumping caps and lines.

Hose ConnectionsHose Connections

Hose Connections

The pump connections are located at the rear of the pump box and are

labelled PUMP INLET and PUMP OUTLET. These connections are bent

upward so the recirculating fluid will drain back into the reservoir when the

hoses are disconnected. Both connec-

tions are capped with stainless steel

serrated plugs.

The pump lines have ¼" male pipe

threads for mating with standard

plumbing fittings. For your conve-

nience two stainless steel adapters,

¼" female pipe thread to 3/8" O.D.

serrated fitting, are provided. (To

assure proper fit, they should be

installed using Teflon®tape around the threads.)

Flexible tubing, if used, should be of heavy wall or reinforced construction.

Make sure all tubing connections are securely clamped. Avoid running

tubing near radiators, hot water pipes, etc. If substantial lengths of tubing

are necessary, insulation may be required to prevent loss of cooling capacity.

Tubing and insulation are available from Thermo NESLAB. Contact our Sales

Department for more information (see Preface, After-sale Support).

It is important to keep the distance between the unit and the external system

as short as possible, and to use the largest diameter tubing practical. Tubing

should be straight and without bends. If diameter reductions must be made,

make them at the inlet and outlet of the external system, not at the unit.

If substantial lengths of cooling lines are required, they should be pre-filled

with bath fluid before connecting them to the unit. This will ensure that an

adequate amount of fluid will be in the bath once it is in operation.

PumpingPumping

Pumping

The pump is designed to deliver a flow of 15 liters/minute (4 gallons

minute) at 0 feet head. To prevent external circulation, the PUMP INLET and

PUMP OUTLET lines on the rear of the unit are capped. The caps must be

removed when external circulation is required.

To properly secure external hose connections to the unit, wrap Teflon®tape

around the pipe line threads before installation. Once the hose connections

are made, the hoses must be properly plumbed to an external system.

It is

important the bath is not in operation until all plumbing is complete.

NOTE:NOTE:

NOTE: To increase agitation in the bath when not circulating externally,

connect a short loop of hose between the inlet and outlet lines.

If the bath is not used for external circulation, make sure the stainless steel

caps are in place prior to operating the bath.

- 7 -

Circulating to an open containerCirculating to an open container

Circulating to an open container

A stainless steel leveling device is available to aid circulation to an open

vessel. Contact our Sales Department for more information (see Preface,

After-sale Support).

Support the leveling device over the open container with a ringstand. Stagger

the tubes in the leveling device so one tube is submerged in the vessel fluid,

and the other tube is level with the fluid surface. Connect the deeper tube to

the PUMP OUTLET and the shorter tube to the PUMP INLET.

Adjust the flow rate using the accessory flow control valve connected to the

PUMP OUTLET, or by partially restricting the outlet tubing. When properly

adjusted, the pump inlet will draw an occasional air bubble to prevent over

flow, and the pump outlet will force fluid through the submerged tube to

prevent aeration of the vessel.

To avoid siphoning the bath work area when the unit is shut off, lift the

leveling device out of the vessel and above the level of the unit.

Circulating through two closed loopsCirculating through two closed loops

Circulating through two closed loops

The pump can be used to circulate through two closed loop systems.

Connect the shortest practical length of flexible tubing from the PUMP

OUTLET to the inlet of external system #1. Connect the outlet of system #1

directly into the bath work area. Connect tubing from the bath work area to

the inlet of system #2. Connect the outlet of system #2 to the PUMP INLET.

LevellingDevice

Bath(Top View)

Outlet Inlet

Bath(Rear View) OpenContainer

PumpBox System #1

System#2

Bath

WorkArea

- 8 -

DrainDrain

Drain

Ensure the temperature of the bath fluid is safe before draining the unit.Ensure the temperature of the bath fluid is safe before draining the unit.

Ensure the temperature of the bath fluid is safe before draining the unit.

The unit is equipped with a drain located at the back of the unit at the base of

the bath. The drain has ¼inch male pipe threads and is capped with a

stainless steel plug. To drain the reservoir simply remove the cap.

To assure proper fit when replacing the cap, be sure to line the threads with

Teflon®tape.

FluidsFluids

Fluids

Never use flammable or corrosive fluids with this unit.Never use flammable or corrosive fluids with this unit.

Never use flammable or corrosive fluids with this unit.

The selected fluid must have a viscosity of 50 centistokes or less at the

lowest operating temperature.

Filtered tap water is the recommended fluid for operation from +8°C to

+80°C.

For operation from +8°C to -30°C, a 50/50 mixture, by volume, of filtered tap

water and laboratory grade ethylene glycol is suggested.

Above +80°C and below -30°C, the user is responsible for fluids used.

Never use pure ethylene glycol as a bath fluid.Never use pure ethylene glycol as a bath fluid.

Never use pure ethylene glycol as a bath fluid. A minimum 80/20A minimum 80/20

A minimum 80/20A minimum 80/20

A minimum 80/20

mixture of Ethylene Glycol and filtered tap water is allowed.mixture of Ethylene Glycol and filtered tap water is allowed.

mixture of Ethylene Glycol and filtered tap water is allowed.

FillingFilling

Filling

RequirementsRequirements

Requirements The bath work area has a high and low level marker to guide filling. The

markers are 1 inch horizontal slits located in the center of the stainless steel

baffle separating the work area and the pump assembly. The correct fluid

level falls between these two markers. The heating and cooling coils will be

exposed and may become damaged if the correct fluid level is not provided.

When pumping to an external system, keep extra fluid on hand to maintain

the proper level in both the circulating lines and the external system.

Never run the unit when the work area is empty. Avoid overfilling.Never run the unit when the work area is empty. Avoid overfilling.

Never run the unit when the work area is empty. Avoid overfilling.

Overfilling the bath may damage the insulation and affects stability asOverfilling the bath may damage the insulation and affects stability as

Overfilling the bath may damage the insulation and affects stability as

well as low-end performance.well as low-end performance.

well as low-end performance.

- 9 -

Section IV ContrSection IV Contr

Section IV Controlleroller

olleroller

ollerss

ss

s

ControllersControllers

Controllers Two standard temperature controllers are available with the unit: Analog and

Digital. This section explains the installation and operation of the controllers.

Start UpStart Up

Start Up Before starting the unit, check all electrical and plumbing connections and

make sure the work area has been properly filled with bath fluid.

To start the unit press the I/O switch on the side of the controller to the

II

I (power on) position. The pump will start and the POWER LED will light.

220V units have a circuit breaker instead of a switch. The circuit breaker is

labeled II

II

I(power on) and OO

OO

O(power off). Ensure the circuit breaker is in the

II

Iposition.

The REFRIGERATION switch should be ON for normal operation below

40°C.

Operating the refrigeration above 40°C could result in prematureOperating the refrigeration above 40°C could result in premature

Operating the refrigeration above 40°C could result in premature

compressor failure.compressor failure.

compressor failure.

The HEAT LED indicates the status of the heater. As the temperature of the

fluid in the bath approaches the temperature setpoint, the lamp will cycle on

and off to indicate the approximate duty cycle of the heater.

Analog Temperature AdjustmentAnalog Temperature Adjustment

Analog Temperature Adjustment

Units with Analog temperature controller are equipped with a glass tube

thermometer. Insert the thermometer in the grommet located on the left side

of the work area.

To adjust the bath temperature, turn the dial to the desired setpoint. Use the

bath thermometer to make fine adjustments to the bath temperature.

AnalogController

FAULT

OFF ON SETPOINTADJUST

POWER

HEAT

REFRIGERATION

- 10 -

Digital Temperature AdjustmentDigital Temperature Adjustment

Digital Temperature Adjustment

To display the temperature setpoint, press the DISPLAY switch. To adjust

the setpoint, press and hold the DISPLAY switch and turn the COARSE and

FINE dials until the temperature setpoint is indicated on the LED display.

NOTE:NOTE:

NOTE: Inadvertent movement of the COARSE and FINE dials, regardless of

the position of the DISPLAY switch, will result in a change of the setpoint.

The change will not be immediately reflected on the LED display unless the

DISPLAY switch is pressed. The display will eventually change as the unit

responds to the new setpoint.

FAULTHEAT

REFRIGERATIONCONTROL DISPLAY SETPOINTADJUST

FINE COURSE

DigitalController

°C

ON

OFF

Shut DownShut Down

Shut Down When the unit is shut off wait approximately five minutes before restarting.

This allows time for the refrigeration pressures to equalize. If the pressures

are not allowed to equalize, the compressor will short-cycle (clicking sound)

and no cooling will occur.

- 11 -

High Temperature/High Temperature/

High Temperature/

Low LiquidLow Liquid

Low Liquid

Level SafetyLevel Safety

Level Safety To protect your application, the adjustable High Temperature/Low Liquid

Level Safety (HIGH TEMP/LOW LEVEL) ensures the heater will not exceed

temperatures which can cause serious damage to your unit. A single tem-

perature sensor, located on the heater coils in the bath, monitors both

conditions. A High Temperature/Low Liquid Level fault occurs when the

temperature of the sensor exceeds the set temperature limit.

In the event of a fault, the unit will shut down. The cause of the fault must be

identified and corrected before the unit can be restarted.

The safety is not pre-set and must be adjusted during initial installation.

To set the safety, locate the HIGH TEMP/LOW LEVEL SAFETY adjustment dial

on the right side of the pump box. Turn the dial fully clockwise and press the red

RESET switch. The RESET switch is located next to the adjustment dial.

Start the unit. Adjust the setpoint for a few degrees higher than the highest

desired fluid temperature and allow the bath to stabilize at the temperature

setpoint. Turn the HIGH TEMP/LOW LEVEL SAFETY dial counter-clockwise

until you hear a click and the unit shuts down. The red FAULT LED on the

temperature controller will light to indicate a fault has occurred.

Cool the bath and then, without moving the adjustment dial, press the red

RESET switch.

NOTE:NOTE:

NOTE: The minimum high temperature safety setting is 50°C.

HighTemperature/LowLiquidLevelSafety(Typical)

- 12 -

15-Pin Accessory15-Pin Accessory

15-Pin Accessory

ConnectorConnector

Connector Digital units are equipped with a 15 pin D-subminiature female receptacle on

the right side of the power box. An ENABLE/DISABLE switch is located just

below the receptacle. Place the switch to the ENABLE position to control the

bath via the receptacle connection. (The sensor temperature and setpoint, pin

7 and 8, can be read with the switch in either position.) The pin-out informa-

tion is listed below.

87 654 32 1

15 14 13 12 11 10 9

15pinD-subminiaturefemalereceptacle

Pin #Pin #

Pin # FunctionFunction

FunctionFunction

Function

1 Chassis ground.

2 No connection.

3 Span +. Indicates the maximum setpoint value the unit can be set

to operate. The temperature scale is 10mV/°C, referenced to

analog ground, pin 6 (example: +350mV = +35.0°C).

4 Span -. Indicates the minimum setpoint value the unit can be set

to operate. The temperature scale is 10mV/°C, referenced to

analog ground, pin 6 (example: +50mV = +5.0°C).

5 No connection.

6 Analog ground. The analog ground is physically separated from

the power ground throughout the unit. To prevent offsets that

result from ground currents, the analog and power grounds are

only connected at the unit's power supply. Analog ground should

only be used as a reference pin.

7 Sensor temperature (current limited through 2.7K OHM resistor).

The fluid temperature, as measured by the controller’s sensor

located in the reservoir, can be read at this pin. The temperature

scale is 10mV/°C, referenced to analog ground, pin 6 (example:

+150mV = +15.0°C).

8 Setpoint out. The present temperature setpoint can be read at

this pin. The temperature scale is 10mV/°C, referenced to analog

ground, pin 6 (example: +150mV =+15.0°C).

9 Power Ground.

10 No connection.

11 No connection.

12 Digital display (input only). An external voltage can be displayed

on the operator panel digital display by applying the voltage to this

pin. The display has a low input resistance and a full scale rating

of ±1.99VDC. Input is referenced to analog ground, pin 6. The

maximum voltage applied to the display should be limited to

±2VDC.

13 - 5V. Power supply of -5VDC (15mA maximum).

14 +5V. Power supply of +5VDC (50mA maximum).

15 Setpoint in. The temperature setpoint can be controlled by apply-

ing a known voltage to this pin. The temperature scale is

10mV/°C, referenced to analog ground, pin 6

(example: +230mV = +23.0°C).

NOTE: With the switch in the ENABLE position and no input to pin 15, the bath will slowly go to the

setpointvalue setonthe digitalcontroller.

- 13 -

SectionSection

SectionV MaintenanceV Maintenance

V MaintenanceV Maintenance

V Maintenance

To avoid electrical shock, disconnect the mains cord prior to remov-To avoid electrical shock, disconnect the mains cord prior to remov-

To avoid electrical shock, disconnect the mains cord prior to remov-

ing any access panels or covers.ing any access panels or covers.

ing any access panels or covers.

Service ContractsService Contracts

Service Contracts Thermo NESLAB offers on-site Service Contracts that are designed to

provide extended life and minimal down-time for your unit. For more infor-

mation, contact our Service Department (see Preface, After-sale Support).

CondenserCondenser

Condenser For proper operation, the unit needs to pull substantial amounts of air

through a condenser. A build up of dust or debris on the fins of the

condenser will lead to a loss of cooling capacity.

Periodic vacuuming of the condenser is necessary. To access the con-

denser the front grille must be removed.

The unit must be turned off before the front panel is removed.The unit must be turned off before the front panel is removed.

The unit must be turned off before the front panel is removed.

All units have a two piece grille assembly. First remove the left (blue-

colored) section by simply pulling it forward. Pull forward on the remaining

(white-colored) section to remove it.

The frequency of cleaning depends on the operating environment. After

initial installation, we recommend a monthly visual inspection of the con-

denser. After several months, the frequency of cleaning will be established.

- 14 -

Reservoir CleaningReservoir Cleaning

Reservoir Cleaning Routine cleaning can be achieved by simply sponging down the seamless

stainless steel tank with tap water. (Dish washing detergent may be used

but the tank must be thoroughly rinsed.)

To gain access to the entire reservoir the pump box and reservoir cover

should be removed.

Remove the line cord from the rear of the unit and then remove the four

screws (two on each side) securing the reservoir's cover.

To get slack on the refrigeration cable, remove the cable strap. The cable

itself does not need to be disconnected.

Turn the cover assembly over and carefully place it on a supporting plat-

form.

AlgaeAlgae

Algae To restrict the growth of algae in the bath, we recommend the bath cover

be kept in place and that all circulation lines be opaque. This will eliminate

the entrance of light required for the growth of most common algae.

Thermo NESLAB recommends the use of Chloramine-T, 1 gram per 3.7

liters.

RefrigerationCable

CableStrap

- 15 -

SectionSection

SectionVIVI

VIVI

VITT

TT

Trr

rr

rouboub

ouboub

oubleshootingleshooting

leshootingleshooting

leshooting

ChecklistChecklist

Checklist Unit will not startUnit will not start

Unit will not startUnit will not start

Unit will not start

Make sure the voltage of the power source meets the specified voltage,

±10%. Refer to the serial number label on the rear of the unit to identify the

specific electrical requirements of your unit.

Check the High Temperature/Low Liquid Level Safety. If the FAULT light is

on, make sure the fluid level in the bath is between the marks in the baffle

and the HIGH TEMP/LOW LEVEL SAFETY setting is greater than the fluid

temperature. Push the RESET switch and attempt to restart.

Loss of cooling capacityLoss of cooling capacity

Loss of cooling capacity

Check the position of the REFRIGERATION switch.

Be sure the cooling capacity of the unit has not been exceeded if circulating

to an external system.

When the unit is shut off, wait approximately five minutes before restarting.

This allows time for the refrigeration pressures to equalize. If the pressures

are not allowed to equalize, the compressor will short-cycle (clicking sound)

and no cooling will occur.

Proper ventilation is required for heat removal. Make sure ventilation

through the front and rear panels is not impeded and the panels are free of

dust and debris.

Ice build up on the cooling coils can act as insulation and lower the cooling

capacity. Raise the temperature of the bath to de-ice the cooling coil and

increase the concentration of non-freezing fluid.

No external circulationNo external circulation

No external circulation

Check for obstructions, kinks, or leaks in the circulation tubing.

Circulation will cease when the pump head has been exceeded.

Service Assistance andService Assistance and

Service Assistance and

Technical SupportTechnical Support

Technical Support If, after following these troubleshooting steps, your unit fails to operate

properly, contact our Customer Service Department for assistance (see

Preface, After-sale Support). In addition to arranging warranty service, our

Service Department can provide you with a wiring diagram and a complete

list of spare parts for your unit. Before calling, please obtain the following:

Part number

Serial number

Voltage of unit

Voltage of power source

- 16 -

AA

APPENDIXPPENDIX

PPENDIXPPENDIX

PPENDIX

NEScom SOFTWNEScom SOFTW

NEScom SOFTWAREARE

AREARE

ARE

View a virtual controller screen which allows

remotemonitoringandoperationofproductcontrol

panel.

The Thermo NESLAB Communications Software is a user friendly software

that allows you to automate your temperature control process. The software

includes a 3½" disk, Comprehensive Operator’s Manual and a toll-free

number to a trained technical staff.

NEScom Software allows you to write custom temperature programs for our

Digital or Microprocessor based temperature control apparatus. Choose

upper or lower temperature limits and monitor system status with an alarm.

NEScom can also record your results on a user selectable graph. NesCom

must be used with an IBM or 100% compatible computer.

Select from easy to use product icons.

Create graphs and charts.

Easily configure ramping functions which set the setpoint over time.

View pop-up alarm windows which display if an alarm condition occurred.

Select software functions from the easy to use pulldown menus.

- 17 -

WARRANTY

Thermo NESLAB Instruments, Inc. warrants for 12 months from date of shipment any Thermo NESLAB unit

according to the following terms.

Any part of the unit manufactured or supplied by Thermo NESLAB and found in the reasonable judgment of

Thermo NESLAB to be defective in material or workmanship will be repaired at an authorized Thermo NESLAB

Repair Depot without charge for parts or labor. The unit, including any defective part must be returned to an

authorized Thermo NESLAB Repair Depot within the warranty period. The expense of returning the unit to the

authorized Thermo NESLAB Repair Depot for warranty service will be paid for by the buyer. Thermo NESLAB’s

responsibility in respect to warranty claims is limited to performing the required repairs or replacements, and no

claim of breach of warranty shall be cause for cancellation or recision of the contract of sales of any unit.With

respect to units that qualify for field service repairs, Thermo NESLAB’s responsibility is limited to the compo-

nent parts necessary for the repair and the labor that is required on site to perform the repair. Any travel labor or

mileage charges are the financial responsibility of the buyer.

The buyer shall be responsible for any evaluation or warranty service call (including labor charges) if no defects

are found with the Thermo NESLAB product.

This warranty does not cover any unit that has been subject to misuse, neglect, or accident. This warranty does

not apply to any damage to the unit that is the result of improper installation or maintenance, or to any unit that

has been operated or maintained in any way contrary to the operating or maintenance instructions specified in

Thermo NESLAB’s Instruction and Operation Manual. This warranty does not cover any unit that has been

altered or modified so as to change its intended use.

In addition, this warranty does not extend to repairs made by the use of parts, accessories, or fluids which are

either incompatible with the unit or adversely affect its operation, performance, or durability.

Thermo NESLAB reserves the right to change or improve the design of any unit without assuming any obliga-

tion to modify any unit previously manufactured.

THE FOREGOING EXPRESS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR

IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE.

Thermo NESLAB’S OBLIGATION UNDER THIS WARRANTY IS STRICTLY AND EXCLUSIVELY LIMITED TO

THE REPAIR OR REPLACEMENT OF DEFECTIVE COMPONENT PARTS AND Thermo NESLAB DOES NOT

ASSUME OR AUTHORIZE ANYONE TO ASSUME FOR IT ANY OTHER OBLIGATION.

Thermo NESLAB ASSUMES NO RESPONSIBILITY FOR INCIDENTAL, CONSEQUENTIAL, OR OTHER

DAMAGES INCLUDING, BUT NOT LIMITED TO LOSS OR DAMAGE TO PROPERTY, LOSS OF PROFITS

OR REVENUE, LOSS OF THE UNIT, LOSS OF TIME, OR INCONVENIENCE.

This warranty applies to units sold in the United States. Any units sold elsewhere are warranted by the affiliated

marketing company of Thermo NESLAB Instruments, Inc. This warranty and all matters arising pursuant to it shall

be governed by the law of the State of New Hampshire, United States. All legal actions brought in relation hereto

shall be filed in the appropriate state or federal courts in New Hampshire, unless waived by Thermo NESLAB.

ATE RTE-140 Manual

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