EX Series

 Bath Circulators

Instruction and Operation Manual

NESLAB Manual P/N 000259

Rev. 07/16/97

NESLAB online

Product Service Information, Electronic Catalog,

Applications Notes, MSDS Forms, e-mail.

(603)427-2490

Set modem to 8-N-1 protocol, 1200 - 14400 baud

Voice Info: (800) 4-NESLAB

Comments on this manual can be sent to:

NESLAB@lifesciences.com

or visit our Web page at:

http://www.neslabinc.com
- 1 -

EX-Series Bath Circulator

Table of Contents

PREFACE

Compliance ............................................................................................. 2

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

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

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

SECTION I

Safety

Warnings................................................................................................. 3

SECTION II

General Information

Description .............................................................................................. 4

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

SECTION III

Installation

Site .......................................................................................................... 6

Electrical Requirements .......................................................................... 6

Plumbing Requirements .......................................................................... 7

Fluids ...................................................................................................... 9

Filling Requirements ............................................................................... 9

Autorefill (Optional) ................................................................................. 10

SECTION IV

Controllers

Controllers............................................................................................... 11

Analog Controller .................................................................................... 11

Digital Controller ...................................................................................... 12

Tap Water Cooling Coils ......................................................................... 13

Boost Heater ........................................................................................... 13

High Temperature/Low Liquid Level Safety ............................................. 14

15-pin Accessory Connector (Optional) ................................................... 15

SECTION V

Maintenance

Service Contracts .................................................................................... 16

Reservoir Cleaning.................................................................................. 16

Algae ....................................................................................................... 16

SECTION VI

Troubleshooting

Checklist ................................................................................................. 17

Service Assistance and Technical Support ............................................. 17

SECTION VII

Programming Software

NEScom .................................................................................................. 18

DeltaTemp .............................................................................................. 19

APPENDIX

International Quick

Reference Guides

WARRANTY
- 2 -

Preface

Compliance

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).

Unpacking

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.

Warranty

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

year from date of shipment. See back page for more details.

After-sale Support

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

you have questions concerning the operation of your unit, contact our Sales

Department. If your unit fails to operate properly, or if you have questions

concerning spare parts or Service Contracts, contact our Customer Service

Depart-ment. Before calling, please obtain the following information from the

unit's serial number label:

- BOM number_______________________

- Serial number ______________________
- 3 -

Section I Safety

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 procedures

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

situation and may void the manufacturer's warranty.

Observe all warning labels.

Never remove warning labels.

Never operate damaged or leaking equipment.

Never operate the unit without bath fluid in the bath.

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

of Ethylene Glycol and tap water is allowed.

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

(HAR) grounded 3-conductor cord, type H05VV-F, with conductors listed

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

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

proper connection to power supply.

NON-BOOST HEATER UNITS Nominal 1.0 mm2 cross section rated 10 Amps

Unit Socket: IEC - 320 C13

BOOST HEATER UNITS Nominal 1.5 mm2 cross section rated 16 Amps

Unit Socket: IEC - 320 C19

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

source before performing any service or maintenance procedures, or

before moving the unit.

Always empty the bath before moving the unit.

Never operate equipment with damaged line cords.

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 -

Section II General Information

Description

The EX Series Bath Circulators are designed to provide temperature control

for applications requiring a fluid work area or pumping to an external system.

The units consist of a circulation pump, stainless steel bath, a work area

cover, and a temperature controller.

Specifications

EX-111 EX-211

Temperature Range1

Analog controller

Digital controller

Temperature Stability2

Analog controller

Digital controller

Pumping Capacity

Heater

Watts

50 Hz Models

Bath Work Area

(H x W x D)

Inches

Centimeters

Bath Volume

Liters

Case Dimensions

(L x W x D)

Inches

Centimeters

Power Requirements3

15 lpm at 0' (0 M)

0 lpm at 16' (4.9 M)

800

1000

9 1/4 x 10 x 6

23.5 x 25.4 x 15.2

7.0 12.25

1. Low end temperature with tap water cooling.

2. Stability is a function of the bath fluid temperature. The use of a work area cover and tap

water cooling may optimize bath stability for your work. For some applications, agitation and

stability above ambient temperatures may be may be improved by connecting a small length

of hose between the PUMP INLET and PUMP OUTLET connections on the rear of the unit.

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

[T=Time Delay]

115 V, 60 Hz, 9 Amps

220/240 V, 50 Hz, 5.5 Amps

17 x 12 3/8 x 18 3/8

43.2 x 31.4 x 46.7

17 x 10 5/16 x 15 7/8

43.2 x 26.2 x 40.3

Ambient +3°C to +100°C

Ambient +3°C to +150°C

±0.1°C

±0.01°C

4 3/4 x 8 x 6

12.1 x 20.3 x 15.2
- 5 -

±0.1°C

±0.01°C

Ambient +3°C to +100°C

Ambient +3°C to +150°C

800/800 boost

1000/800 boost

800

1000

800/800 boost

1000/800 boost

9 1/4 x 10 x 9

23.5 x 25.4 x 22.9

19 1/4 x 10 x 6

48.9 x 25.4 x 15.2

16 1/4 x 10 x 12

41.3 x 25.4 x 30.5

20.5 22.0 41.5

20 x 12 3/8 x 18 3/8

50.8 x 31.4 x 46.7

17 x 12 3/8 x 28 3/8

43.2 x 31.4 x 72.1

23 x 12 3/8 x 25 3/8

58.4 x 31.4 x 64.5

15 lpm at 0' (0 M)

0 lpm at 16' (4.9 M)

Specifications

EX-221 EX-411 EX-511

Temperature Range1

Analog controller

Digital controller

Temperature Stability2

Analog controller

Digital controller

Pumping Capacity

Heater

Watts

50 Hz Models

Bath Work Area

(H x W x D)

Inches

Centimeters

Bath Volume

Liters

Case Dimensions

(L x W x D)

Inches

Centimeters

Power Requirements3

115 V, 60 Hz, 16 Amps

220/240 V, 50 Hz, 10 Amps

115 V, 60 Hz, 16 Amps

220/240 V, 50 Hz, 10 Amps

115 V, 60 Hz, 9 Amps

220/240 V, 50 Hz, 5.5 Amps

1. Low end temperature with tap water cooling.

2. Stability is a function of the bath fluid temperature. The use of a work area cover and tap

water cooling may optimize bath stability for your work. For some applications, agitation and

stability above ambient temperatures may be may be improved by connecting a small length

of hose between the PUMP INLET and PUMP OUTLET connections on the rear of the unit.

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

[T=Time Delay]
- 6 -

Section III Installation

Site

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

corrosive materials are present.

Lift the unit by grasping it under the case, near the rubber feet.

Locate the unit on a sturdy table or bench top. Ambient temperatures should

be inside the range of +50°F to +80°F (+10°C to +27°C).

Electrical

Requirements

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

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 harmonized

(HAR) grounded 3-conductor cord, type H 0 5 V V - F , with conductors

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

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

plug for proper connection to power supply.

NON-BOOST HEATER UNITS Nominal 1.0 mm2 cross section rated 10 Amps

Unit Socket: IEC - 320 C13

BOOST HEATER UNITS Nominal 1.5 mm2 cross section rated 16 Amps

Unit Socket: IEC - 320 C19
- 7 -

Plumbing

Requirements

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

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. The connections are capped with stainless steel

serrated plugs.

The pump lines have 1⁄4" MPT for mating with standard plumbing fittings. For

your convenience two stainless steel adapters, 1⁄4" FPT to 3/8" O.D. serrated

fitting, are provided. (To assure proper fit, they should be installed using 11⁄2

turns of 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 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 a

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

Pumping

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

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

PUMP OUTLET lines are capped. The caps must be removed when external

circulation is required.

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

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

are made, the pump must be properly plumbed to an external system. It is

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

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

caps are in place prior to operating the bath.
- 8 -

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 loops

Bath (Rear View) Open Container

Pump Box

Bath

Work Area

Levelling

Device

Outlet Inlet

System #2

System #1

Bath (Top View)
- 9 -

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.

Drain

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 1⁄4 inch 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.

Fluids

Never use flammable or corrosive fluids with this unit.

Tap water is the recommended fluid for operation to +80°C.

Above +80°C, the user is responsible for fluids used.

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

of Ethylene Glycol and tap water is allowed.

Filling

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 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 external system.

Never run the unit when the work area is empty.
- 10 -

Autorefill (Optional)

An optional autorefill device is designed to maintain the correct level of fluid in

the reservoir. The device consists of a float switch and a solenoid valve. If the

fluid level falls, the float switch will open the solenoid valve and allow makeup

fluid to fill the reservoir. Once the fluid reaches the proper level, the float

switch will rise and the solenoid valve will close.

The plumbing connection for the autorefill device, labeled WATER INLET, is

located on the rear of the autorefill assembly. The connection is 3/8 inch OD

stainless steel. Remove the nut and install the tubing from your makeup fluid

source. Reinstall the nut and tubing on to the connection.

Tubing is available from NESLAB. Contact our Sales Department for more

information (see Preface, After-sale Support).

The autorefill device requires its own source of electrical power. The connector for the line cord (provided with the assembly) is also located on the rear of

the autorefill device. The connector is labelled POWER.

Autorefill Device
- 11 -

Section IV Controllers

Controllers

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

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

Analog

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 115V units press the I/O switch on the side of the controller to the

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

I position.

POWER

HEAT

FAULT

SETPOINT ADJUST

Analog Controller

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.

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.
- 12 -

Digital

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 115V units press the I/O switch on the side of the controller to the

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

I position.

HEAT

SETPOINT ADJUST

FINE COARSE DISPLAY

FAULT

°C

Digital Controller

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.

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: 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 unitresponds to the new setpoint.
- 13 -

Tap Water

Cooling Coils

The unit is equipped with a cooling coil located behind the stainless steel

baffle in the bath. The bath can be cooled and temperature stability improved

by circulating cold fluid through the coil. For best results, the fluid should be at

least 5°C below the temperature setpoint. The required fluid flow rate depends on the type of fluid, the setpoint, and the desired stability.

The plumbing connections for the cooling coil are 3/8 inch OD stainless steel

tubes located on the rear of the unit. These connections will accept 3/8 inch or

5/16 inch ID tubing. Tubing is available from NESLAB.

Connect the COOLING COIL IN tube to the cold fluid source. Connect the

COOLING COIL OUT tube to the cold fluid return (or drain if tap water is

being used).

Boost Heater

EX-221 and EX-511 units are equipped with a boost heater. The boost heater

is designed to provide additional heat to the unit.

To start the heater press the BOOST HEAT switch, located on the front of the

temperature controller, to the ON position. Even though the switch automatically returns to the OFF position, the boost heater will start to function. (You

can verify this by observing the fluid temperature rising.) The boost heater

automatically ceases operation when the setpoint is reached.
- 14 -

High Temperature/

Low Liquid 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 temperature 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 on single heater systems is not preset and must be adjusted

during initial installation.

Units with a boost heater have an additional nonadjustable safety located

behind the main safety. It has a red reset button but no adjustment knob.

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. NOTE: For units without a reset switch turn the I/O switch off then back on.

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 counterclockwise

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 or turn the I/O switch off then back on.

NOTE: For units with a reset switch, the minimum high temperature safety

setting is 50°C. For units without a reset switch the safety has a temperature

range of 0°C to 180°C.

High Temperature/Low Liquid Level Safety (Typical)

(Some units do not have a reset switch.)
- 15 -

15-Pin Accessory

Connector (Optional)

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 information

is listed below.

87 654 32 1

15 14 13 12 11 10 9

15 pin D-subminiature female receptacle

Pin # 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

applying 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 setpoint value set on the digital controller.
- 16 -

Section V Maintenance

To avoid electrical shock, disconnect the mains cord prior to removing

any access panels or covers.

Service Contracts

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

extended life and minimal down-time for your unit. For more information,

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

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.

Remove the four screws securing the reservoir's cover.

Carefully raise the controller and cover assembly to remove it from unit.

Place the cover on its side.

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.

NESLAB also recommends the use of Chloramine-T, one gram per gallon.
- 17 -

Section VI Troubleshooting

Checklist

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(es) or, for units without a reset switch,

turn the I/O switch off then back on and attempt to restart.

No external circulation

Make sure the stainless steel plugs on the PUMP INLET and PUMP

OUTLET have been removed.

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

Circulation will cease when the pump head has been exceeded.

Service Assistance and

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). Before calling, please obtain the following

information:

Part number

Serial number

Voltage of unit

Voltage of power source

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 information:

Part number

Serial number
- 18 -

Section VII Programming Software

NEScom Software

The NESLAB Communications Software is a user friendly software that

allows you to automate your temperature control process. The software

includes a 31⁄2" 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.

View a virtual controller screen which allows

remote monitoring and operation of product

control panel.
- 19 -

DeltaTemp

DeltaTemp programming software is now available for free download from

NESLAB ONLINE BBS (Bulletin Board System) at 603-427-2490.

DeltaTemp software allows you to write custom temperature programs for

NESLAB digital units (any unit with a digital temperature readout AND a 10-15

pin INTERFACE port). The menu-driven program provides a table format for

entering temperature parameters and a visual graph confirmation of the

program you have designed. Program time can range from 0 to 999 minutes

with unlimited looping. Choose upper and lower temperature limits and

monitor system status with an audible alarm. DeltaTemp can also record your

results on a printed graph or file. DeltaTemp is a DOS program, and requires

an IBM or 100% compatible computer.

DeltaTemp may require use of a computer interface device, depending on

which NESLAB unit is being used. Refer to the setup diagram in the

DeltaTemp folder for full details.

To download the software, go to: CONFERENCES / SOFTWARE /

DeltaTemp.

The folder also contains the operating manual, setup diagrams, application

notes, and directions on making your own interface cable.

NESLAB ONLINE is a FirstClass® system accessible by general terminal

software (Windows Terminal accessory, ClarisWorks Communications,

Z-Term, Pro-Comm, or similar).

To use the full graphics and features of the BBS we recommend using

FirstClass® Client software. FirstClass® Client is available for Macintosh or

Windows platforms. It is available from many sources:

NESLAB ONLINE

Mac: Conferences/Software/Macintosh

Windows: Conferences/Software/Windows

AMERICA ONLINE

Mac: Computing/software center/mac communications forum/industry connection/softarc

Windows: Computing/software center/communications programs

COMPUSERVE:

Mac: TWEUROPA/Teletools/FCMAC.ZIP

Windows: PCBBS/BBS programs/FC300.EXE

WORLD WIDE WEB

http://www.softarc.com/try.htm
- 20 -

Blank page.
- 21 -

Installation

Stellen Sie das Gerät auf einen stabilen Tisch oder

Labortisch. Die Umgebungstemperatur sollte

zwischen +10 °C und +27 °C liegen.

Vergewissern Sie sich, daß die Spannung Ihrer

Stromanschlüsse mit der für das Gerät

vorgesehenen Spannung übereinstimmt (+ 10%).

Die Schlauchanschlüsse (1/4 Zoll MPT) des

Gerätes befinden sich an der Rückseite und sind

mit PUMP INLET und PUMP OUTLET bezeichnet.

Entfernen Sie die Kappen, falls externe Zirkulation

gewünscht wird. Schließen Sie den PUMP

OUTLET-Anschluß an den Eingang Ihres

Instruments und den PUMP INLET-Anschluß an

den Ausgang Ihres Instruments an.

Füllen Sie das Reservoir bis zu einem Stand, der

zwischen den horizontalen Markierungen liegt, die

auf dem Blech markiert sind, das den

Arbeitsbereich von der Pumpeneinheit trennt.

Verwenden Sie niemals entflammbare oder

Korrosion verursachende Flüssigkeiten. Für den

Betrieb im Arbeits-Temperaturbereich bis +80°C

empfiehlt NESLAB Leitungswasser. Oberhalb +80

°C ist der Anwender selbst für die verwendeten

Flüssigkeiten verantwortlich. Über +115 °C dürfen

Sie niemals pures Ethylenglykol als Badflüssigkeit

verwenden.

Wenn sie zu einem externen System zirkulieren,

sollten Sie zusätzliche Kühlflüssigkeit zur Hand

haben, um den Kühlflüssigkeitsstand in den

Zirkulationsleitungen und dem externen System

beibehalten zu können.

Betreiben Sie das Gerät niemals mit leerem

Arbeitsbereich!

Inbetriebnahme

Vor Inbetriebnahme des Gerätes vergewissern Sie

sich bitte, daß die elektrischen Anschlüsse und die

Rohr- u. Schlauchanschlüsse sachgemäß

installiert sind und daß das gesamte System mit

Kühlflüssigkeit gefüllt ist.

EX - Serie Kurzbedienungsanleitung

Appendix

International Quick Reference Guides

Geräte, die bei 220 Volt betrieben werden,

verfügen über einen Stromkreisunterbrecher auf

der Rückseite des Gerätes. Vergewissern Sie sich,

daß dieser auf ON gestellt ist. Um das Gerät

einzuschalten, müssen Sie den I/O-Schalter auf „I“

stellen. Die Power-Lampe leuchtet auf, wenn das

Gerät in Betrieb ist. Um das Gerät abzuschalten,

muß der I/O-Schalter auf „O“ gestellt werden.

Die HEAT-LED-Anzeige zeigt den Status des

Heizelements an. Sie leuchtet auf, wenn das

Heizelement arbeitet. Wenn die Arbeitstemperatur

den gewünschten Setpoint erreicht, blinkt die LEDAnzeige, um den ungefähren Arbeitsrhythmus des

Heizelements anzuzeigen.

Einstellung der Analog-Temperatursteuerung

Um die Temperatur einzustellen (setpoint), drehen

Sie den SETPOINT ADJUST-Schalter an der

Vorderseite des Gerätes auf die gewünschte

Temperatur.

Einstellung der Digital-Temperatursteuerung

Um sich den Temperatur-Setpoint anzeigen zu

lassen, drücken Sie den DISPLAY-Schalter und

halten Sie ihn gedrückt. Um den TemperaturSetpoint einzustellen, drücken Sie den DisplaySchalter, halten diesen, und drehen gleichzeitig

den SETPOINT ADJUST-Schalter so lange, bis die

gewünschte Temperatur in der Digitalanzeige

angezeigt wird. Wenn die Temperatur eingestellt

ist, lassen Sie den Display-Schalter los. Die

Digitalanzeige zeigt dann die Temperatur der

Kühlflüssigkeit im Reservoir an.

Wartung

Überprüfen Sie das Reservoir regelmäßig. Sollte

eine Säuberung notwendig sein, spülen Sie das

Reservoir mit einer speziellen

Reinigungsflüssigkeit, die mit dem Umlaufsystem

und der Zirkulationsflüssigkeit kompatibel ist.

Für umfassende Informationen einschließlich

Fehlerbeseitigungsmöglichkeiten schlagen Sie

bitte in der Betriebsanleitung nach oder wenden

Sie sich an unsere Service-Abteilung: 069/50 91

90 32.
- 22 -

EX Serie Kvik Referance

Installation:

Operationstemperatur ved 100% udnyttelse er fra

stuetemperatur til+750 C under forudsætning af, at

netspændingen er den nominelle 240V +/- 10%.

Tilslutning af slanger er på bagsiden mærket

„PUMP INLET“ (ind) and „PUMP OUTLET“ (ud).

Tilslutningerne er 1/

4" MPT-gevind.

Fyld resovoiret til mærket placeret på bafflen

mellem arbejdsområdet og pumpeenheden.

Anvend aldrig brandbare væsker, rent ionbyttet

eller dobbeltdestilleret vand kan anvendes op til

+800 C, over denne temperatur anbefales

specialvæsker.

Sørg altid for at den rette mængde væske er til

stede i termostatkarret, og husk at kompensere for

den væske, der medgår til ekstern cirkulation.

Betjening:

Før opstart checkes elektriske forbindelser,

slangeforbindelser og kølevæske stand.

Check hovedkontakten på bagsiden af badet, og

sørg for at den er tændt. Når badet skal startes

trykkes I/O kontakten på siden i I position, og

strømindikatoren tænder. Skal

badet slukkes, trykkes I/O kontakten i O stilling, og

indikatoren slukker.

Dioden på frontpanelet angiver status på badet,

der lyser ved opvarmning og

slukker, når den indstillede temperatur er nået.

Analog temperatur kontrol:

Drej 0C tasten til den ønskede temperatur og lad

systemet stabiliserer sig.

Digital temperatur kontrol:

Tryk på „DISPLAY“ tasten for at se den indstillede

temperatur. Indstilling af ny temperatur, tryk på

„DISPLAY“ og drej på „ADJUST“ indtil den rigtige

temperatur vises, slip derefter „DISPLAY“ tasten.

Skærmen vil nu vise den aktuelle temperatur i

badet.

Periodisk vedligeholdelse:

Check standen af kølevæske periodisk. Før skift af

væske indstilles temperaturen på „de-ice“. Check

med mellemrum vakuummet på pumpesiden, rens

systemet og check for aflejringer, vækst,

utætheder og evt. filtre. Husk åben aldrig

instrumentet uden strømmen er afbrudt, og

strømkablet er taget ud!
- 23 -

EX Series, Handleiding voor snelle installatieprocedures

Installatie

Plaats het apparaat op een tafel of werkbank.

Omgevingstemperaturen moeten liggen tussen de

+10°C en +27°C.

Let erop dat de netspanning gelijk is aan het

aangegeven voltage, +/- 10%.

De slangaansluitingen zijn bevestigd aan de

achterkant van het apparaat en zijn voorzien van

de labels PUMP INLET en PUMP OUTLET. Deze

aansluitingen zijn 1/4 inch MPT. Verwijder de

pluggen indien externe circulatie gewenst is.

Bevestig de PUMP OUTLET aan de ingang van uw

applicatie. Bevestig de PUMP INLET aan de

uitgang van uw applicatie.

Vul nu het reservoir tot het niveau tussen de

horizontale strepen op de roestvrij stalen

scheidingsplaat, die de werkruimte van het

pompgedeelte scheidt.

Gebruik nooit brandbare of andere

koelvloeistoffen, die het toestel kunnen aantasten.

Kraanwater wordt in het algemeen aanbevolen

wanneer u bij temperaturen werkt van +8°C tot

+80°C. Boven de + 80C. zal de gebruiker

verantwoordelijk zijn voor de benodigde

vloeistoffen. Indien men boven de 115°C. werkt,

gelieve nooit puur ethylene glycol als badvloeistof

te gebruiken.

Wanneer u wilt pompen naar een extern systeem,

dient u altijd extra vloeistof achter de hand te

houden om met juiste vloeistofniveau’s zowel in

het interne als het externe gedeelte van het

systeem, te handhaven.

Gebruik het apparaat nooit wanneer het reservoir

leeg is.

Operationeel gebruik

Alvorens het apparaat in gebruik te nemen, dient u

eerst alle elektrische- en slangaansluitingen te

controleren. Tevens dient u te controleren of het

systeem gevuld is met vloeistof.

220 Volt apparaten hebben een z.g. “circuit

breaker” aan de achterkant van het apparaat.

Controleer of deze in werking is gesteld. Om het

apparaat te starten, gelieve de I/O knop aan de

zijkant van het apparaat te draaien naar de I

positie. Het lampje zal oplichten als indicatie dat

het systeem in werking is gesteld. Om het

apparaat uit te zetten, gelieve de I/O knop naar de

O positie te draaien.

Het “HEAT LED” duidt de actuele status van het

verwarmings-element aan. Het zal oplichten indien

het verwarmingselement in werking is gesteld. Als

de ingestelde temperatuur de set-point heeft

bereikt, zal de LED aan en uit gaan om het proces

van de heater aan te duiden.

Analog Controller Temperature Adjustment

Om de temperatuur set-point aan te passen, draai

de SETPOINT ADJUST knop aan de voorkant van

het apparaat naar de gewenste temperatuur.

Digital Controller Temperature Adjustment

Om de temperatuur set-point af te kunnen lezen,

houdt u de DISPLAY knop ingedrukt. Om de

temperatuur set-point aan te passen, houdt u de

DISPLAY knop ingedrukt en draait u de set-point

set point knop, totdat de gewenste temperatuur

set-point af te lezen is van de display. Als de setpoint is aangepast, kunt u de DISPLAY knop weer

loslaten. De display zal nu de temperatuur

weergeven van de vloeistof in het reservoir.

Periodiek Onderhoud

Het reservoir dient regelmatig gecontroleerd te

worden. Indien reiniging noodzakelijk is, zal het

reservoir schoongespoeld moeten worden met een

vloeistof, welke verenigbaar is met het systeem en

de koelvloeistof.

Indien u meer informatie wenst, inclusief

procedures in geval van problemen, kunt u de

handleiding raadplegen of contact opnemen met

de NESLAB service-afdeling: (+31) - 40 - 300066.
- 24 -

Kortfattad Bruksanvisning för EX Serie

För att ändra den önskade förbestämda

temperaturen, vrid °C knappen på framsidan av

maskinen tills den önskade temperaturen är nådd.

Digital Kontroll, Temperatur Ändring

Håll Display knappen intryckt för att visa den

önskade temperaturen. Håll Display knappen

intryckt och vrid Adjust knappen för att ändra den

önskade temperaturen. Släpp Display knappen

efter att den önskade temperaturen visas på

kontroll panelen. Temperaturen på vätskan i

tanken visas nu på kontroll panelen.

Periodiskt Underhåll

Inspektera vätskan i tanken periodvis. Om det är

nödvändigt med rengöring, spola tanken med en

vätska som är förenlig med cirkulations sytemet

och med kylvätskan.

Installation

Ställ maskinen på ett stadigt bord eller en bänk.

Temperaturen i rummet bör vara mellan +50°F

(10°C) och +80°F (27°C).

Försäkra att spänningen är den samma som den

som är given i instruktionerna ± 10%.

Röranslutning finns på baksidan av maskinen och

har följande beskrivning: SUPPLY och RETURN.

Anslutningarna är 1/4 inch MPT. Ta bort de

skyddande plast bitarna från röranslutningarna.

Anslut SUPPLY kopplingen till intaget av din

anordning och RETURN kopplingen till uttaget.

Lösgör skruvarna och ta bort luckan för att fylla

tanken. Ta bort tank locket och fyll tanken med ren

kylnings vätska.

Använd aldrig eldfarliga eller frätande vätskor.

Kran vatten rekommenderas upp till +80°C. Över

+80°C är användaren ansvarig för vilken vätska

som används. Använd aldrig ren etylen glykol som

vätska över 115°C.

Ha extra vätska redo om din anordning kräver det

så att den rätta nivån behålls i cirkulations sytemet.

Användning

Kontrollera alla elektriska och alla rör anslutningar

innan maskinen startas. Se till att cirkulations

systemen har fyllts med vätska.

220V maskiner har en ström brytare på baksidan

av maskinen. För att starta maskinen, sätt I/O

knappen på sidan av maskinen på I. Lampan lyser

för att visa att maskinen är på. Sätt knappen på O

för att stänga av den.

Analog Kontroll, Temperatur Ändring
- 25 -

NOTICE D’UTILISATION

BAINS EX

INSTALLATION

Placer l’appareil sur une table ou une paillasse

suffisamment robuste. La température de la pièce

doit être comprise entre 10 et 25°C.

S’assurer que l’alimentation électrique soit celle

requise à ±10%.

Les connections sont situées à l’arrière de

l’appareil et sont étiquetées “ PUMP INLET ” et

“ PUMP OUTLET ”. Ces connections sont en inox

d’un diamètre 3/8eme de pouce. Retirer les

embouts en inox si vous souhaitez recirculer.

Enficher le connecteur “ PUMP OUTLET ” à

l’entrée de votre équipement et le connecteur

“ PUMP INLET ” à la sortie.

Remplir le réservoir à un niveau compris entre les

deux graduations “ maxi ” et “ mini ”.

Ne pas utiliser de liquide inflammable, corrosif, ou

dont la viscosité serait inférieure à 50 centistokes

aux températures les plus basses. Pour un

fonctionnement jusqu’à 80°C, l’eau du robinet est

la plus indiquée. En phase d’amorçage (au début

de la recirculation), rajouter rapidement du liquide.

Ne jamais l’utiliser sans liquide ou en dessous du

niveau minimum.

Ces bains sont équipés d’un robinet de vidange

situé à l’arrière.

MISE EN ROUTE

Vérifier les connections électriques, les tuyaux

d’eau ainsi que le niveau de remplissage.

Les modèles en 220V ont un interrupteur général à

l’arrière. Vérifier qu’il est sur “ on ”, placer

l’interrupteur sur la position 1. La pompe, ainsi que

le système de réfrigération se mettent en route. Le

controleur de température numérique indique la

température dans le bain. Pour éteindre, mettre

l’interrupteur sur la position 0.

Le témoin lumineux “ heat ” indique que le bain

fonctionne en mode “ chauffage ”. Quand la

température approche de celle souhaitée, la diode

s’éteint et s’allume.

REGLAGE DU CONTROLEUR DE TEMPERATURE ANALOGIQUE

Tourner le potentiomètre situé à l’avant jusqu’à ce

que la température désirée coïncide avec la

graduation.

REGLAGE DU CONTROLEUR DE TEMPERATURE NUMERIQUE

Pour afficher la température souhaitée, maintenir

appuyé l’interrupteur et tourner le bouton de

réglage jusqu’à ce que la température souhaitée

soit affichée. Relâcher ensuite l’interrupteur.

L’affichage indique alors la température du fluide

dans le réservoir.

MAINTENANCE PREVENTIVE

Vérifier régulièrement le fluide dans le réservoir,

Changer de temps à autre le liquide utilisé,

En cas de nettoyage, rincer avec un produit de

lavage compatible,
- 26 -

PROCEDIMIENTOS DE OPERACION DE REFERENCIA RAPIDA

PARA LA SERIE EX

INSTALACION

Sitúe la unidad sobre una mesa resistente o sobre

un banco de trabajo. Las temperaturas ambientes

deben estar dentro del rango de + 50 oF a + 80 oF.

Asegúrese de que el voltaje de la fuente de

energía sea igual que el voltaje especificado, +/-

10%.

Las conexiones de tuberías están situadas en la

parte trasera de la unidad y están marcadas como

PUMP INLET y PUMP OUTLET. Estas conexiones

son 1/4" MPT. Saque las tapas cuando requiera

circulación externa. Conecte el adaptador PUMP

OUTLET a la entrada de su aplicación. Conecte el

adaptador PUMP INLET a la salida de su

aplicación.

Llene el reservorio a un nivel entre los marcadores

horizontales situados en la puerta de acero

inoxidable que separa la zona de trabajo de la

bomba.

No utilice nunca fluidos inflamables o corrosivos.

Se recomienda utilizar agua corriente para operar

a +80 oC. Por encima de +80 oC, el usuario es

responsable de los fluidos que utilice. Por encima

de 115 oC no utilice nunca etileno glicol puro como

fluido de baño.

Cuando bombee a un sistema externo, tenga

fluido extra a mano para mantener el nivel

apropiado tanto en las lineas circulantes como en

el sistema externo.

Nunca haga funcionar el instrumento con el área

de trabajo vacía.

OPERACION

Antes de poner en marcha la unidad, compruebe

todas las conexiones eléctricas y de tuberías.

Asegúrese de que el sistema circulador se ha

llenado con fluido.

Las unidades de 220 V. tienen un cortador de

circuito en la parte trasera de la unidad. Asegúrese

de que está en posición ON. Para poner en

marcha la unidad, ponga el interruptor I/O situado

en el lateral de la unidad en posición I. La lámpara

Power se iluminará para indicar que el sistema

está funcionando. Para apagarlo, ponga el

interruptor de encendido en posición O.

El LED HEAT indica la situación del sistema del

calentador. Se ilumina para indicar que el

calentador está funcionando. A medida que la

temperatura de funcionamiento se aproxima al

punto fijado, el LED ciclará para indicar el ciclo de

trabajo del calentador.

AJUSTE DE LA TEMPERATURA CON EL

CONTROLADOR ANALOGICO

Para fijar el punto de ajuste de la temperatura, gire

el dial SETPOINT ADJUST situado en el frontal de

la unidad hasta la temperatura deseada.

AJUSTE DE LA TEMPERATURA CON EL

CONTROLADOR DIGITAL

Para que el punto de ajuste de temperatura

aparezca en pantalla, mantenga presionado el

interruptor DISPLAY. Para fijar el punto de ajuste

de temperatura, mantenga presionado el

interruptor DISPLAY y gire los botones SETPOINT

ADJUST hasta que la pantalla digital indique el

punto de ajuste de temperatura deseado. Una vez

fijado el punto de ajuste, suelte el interruptor

DISPLAY. La pantalla indicará la temperatura del

fluido en el reservorio.

MANTENIMIENTO PERIODICO

Inspeccione periódicamente el fluido del

reservorio. Si es necesaria una limpieza, rocíe el

reservorio con un fluido de limpieza compatible

con el sistema de circulación y el fluido

recirculante.

Para una información completa, incluyendo

solución de problemas, refiérase al manual de

instrucciones o contacte con el Departamento de

Servicio al Cliente en el teléfono 1-800-258-0830.
- 27 -

WARRANTY

NESLAB Instruments, Inc. warrants for 12 months from date of shipment any NESLAB unit according to the

following terms.

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

to be defective in material or workmanship will be repaired at an authorized NESLAB Repair Depot without

charge for parts or labor. The unit, including any defective part must be returned to an authorized NESLAB

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

Depot for warranty service will be paid for by the buyer. 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, NESLAB’s responsibility is limited to the component 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 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 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.

NESLAB reserves the right to change or improve the design of any unit without assuming any obligation 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.

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

REPAIR OR REPLACEMENT OF DEFECTIVE COMPONENT PARTS AND NESLAB DOES NOT ASSUME

OR AUTHORIZE ANYONE TO ASSUME FOR IT ANY OTHER OBLIGATION.

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 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 NESLAB.