Thermo scientific Ex-111 Manual

EX Series

Bath Circulators

Instruction and Operation ManInstruction and Operation Man

Instruction and Operation Manualual

ualual

ual

ThermoNESLABManualP/N000259

Rev.10/26/00

- 1 -

EX-Series Bath CirEX-Series Bath Cir

EX-Series Bath Circulatorculator

culatorculator

culator

TT

Tabab

abab

able 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.......................................................................................................... 6

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

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

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

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

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

SECTION IVSECTION IV

SECTION IV

ControllersControllers

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 VSECTION V

SECTION V

MaintenanceMaintenance

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

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

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

SECTION VISECTION VI

SECTION VI

TroubleshootingTroubleshooting

Troubleshooting Checklist .................................................................................................17

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

SECTION VIISECTION VII

SECTION VII

Programming SoftwareProgramming Software

Programming Software NEScom Programming Software ............................................................18

APPENDIXAPPENDIX

APPENDIX International Quick Reference Guides

WARRANTYWARRANTY

WARRANTY

- 2 -

PrefacePreface

Preface

ComplianceCompliance

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).

UnpackingUnpacking

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.

WarrantyWarranty

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

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

NES-careNES-care

NES-care

ExtendedExtended

Extended

Warranty ContractWarranty Contract

Warranty Contract • 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 NESLAB for more

information.

After-sale SupportAfter-sale Support

After-sale Support Thermo 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 Cus-

tomer Service Department. Before calling, please obtain the following

information from the unit's serial number label:

- BOM number _____________________

- Serial number _____________________

- 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.

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.

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

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

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

mixture of Ethylene Glycol and tap water is allowed.

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

(HAR) grounded 3-conductor cord, type H05VV-F, 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.

NON-BOOST HEATER UNITSNON-BOOST HEATER UNITS

NON-BOOST HEATER UNITS 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

BOOST HEATER UNITSBOOST HEATER UNITS

BOOST HEATER UNITS Nominal 1.5 mmNominal 1.5 mm

Nominal 1.5 mmNominal 1.5 mm

Nominal 1.5 mm22

22

2cross section rated 16 Ampscross section rated 16 Amps

cross section rated 16 Ampscross section rated 16 Amps

cross section rated 16 Amps

Unit Socket: IEC - 320 C19Unit Socket: IEC - 320 C19

Unit Socket: IEC - 320 C19

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 -

Section II General InfSection II General Inf

Section II General Informationormation

ormationormation

ormation

DescriptionDescription

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.

SpecificationsSpecifications

Specifications

EX-111EX-111

EX-111 EX-211EX-211

EX-211EX-211

EX-211

Temperature RangeTemperature Range

Temperature Range11

11

1

Analog controller

Digital controller

Temperature StabilityTemperature Stability

Temperature Stability22

22

2

Analog controller

Digital controller

Pumping CapacityPumping Capacity

Pumping Capacity

HeaterHeater

Heater

Watts

50 Hz Models

Bath Work AreaBath Work Area

Bath Work Area

(H x W x D)

Inches

Centimeters

Bath VolumeBath Volume

Bath Volume

Liters

Case DimensionsCase Dimensions

Case Dimensions

(L x W x D)

Inches

Centimeters

Power RequirementsPower Requirements

Power Requirements33

33

3

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

12.257.0

1. Low-endtemperature with tap water cooling. The controller may be set to -30°C, however to

achievetemperaturesbelowthe specified rangerequiresaccessorycooling. ContactThermo

Neslabformore details.

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

watercoolingmayoptimizebathstabilityforyour work. For some applications, agitation and

stabilityaboveambienttemperaturesmaybe 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=TimeDelay]

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 -

Ambient +3°C to +100°C

Ambient +3°C to +150°C

800/800 boost

1000/800 boost 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)

SpecificationsSpecifications

Specifications

EX-221EX-221

EX-221 EX-411EX-411

EX-411EX-411

EX-411 EX-511EX-511

EX-511EX-511

EX-511

Temperature RangeTemperature Range

Temperature Range11

11

1

Analog controller

Digital controller

Temperature StabilityTemperature Stability

Temperature Stability22

22

2

Analog controller

Digital controller

Pumping CapacityPumping Capacity

Pumping Capacity

HeaterHeater

Heater

Watts

50 Hz Models

Bath Work AreaBath Work Area

Bath Work Area

(H x W x D)

Inches

Centimeters

Bath VolumeBath Volume

Bath Volume

Liters

Case DimensionsCase Dimensions

Case Dimensions

(L x W x D)

Inches

Centimeters

Power RequirementsPower Requirements

Power Requirements33

33

3115 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-endtemperature with tap water cooling. The controller may be set to -30°C, however to

achievetemperaturesbelowthe specified rangerequiresaccessorycooling. ContactThermo

Neslabformore details.

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

watercoolingmayoptimizebathstabilityforyour work. For some applications, agitation and

stabilityaboveambienttemperaturesmaybe 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=TimeDelay]

±0.1°C

±0.01°C

800

1000

- 6 -

Section III InstallationSection III Installation

Section III Installation

SiteSite

Site

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.

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).

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.

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.

NON-BOOST HEATER UNITSNON-BOOST HEATER UNITS

NON-BOOST HEATER UNITS 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

BOOST HEATER UNITSBOOST HEATER UNITS

BOOST HEATER UNITS Nominal 1.5 mmNominal 1.5 mm

Nominal 1.5 mmNominal 1.5 mm

Nominal 1.5 mm22

22

2cross section rated 16 Ampscross section rated 16 Amps

cross section rated 16 Ampscross section rated 16 Amps

cross section rated 16 Amps

Unit Socket: IEC - 320 C19Unit Socket: IEC - 320 C19

Unit Socket: IEC - 320 C19

- 7 -

PlumbingPlumbing

Plumbing

RequirementsRequirements

Requirements

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

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

To prevent damage to the plumbing lines, always support theTo prevent damage to the plumbing lines, always support the

To prevent damage to the plumbing lines, always support the

¾" fittings while installing/removing the pumping caps and lines.¾" fittings while installing/removing the pumping caps and lines.

¾" 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. The connections are capped with stainless steel

serrated plugs.

The pump lines have ¼" MPT for mating with standard plumbing fittings. For

your convenience two stainless steel adapters, ¼" FPT to 3/8" O.D. serrated

fitting, are provided. (To assure proper fit, they should be installed using 1½

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 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 a

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 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 connec-

tions 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 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

Bath (Rear View) Open Container

Pump Box

Bath

Work Area

Levelling

Device

Inlet

Outlet

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.

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.

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

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

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

mixture of Ethylene Glycol and 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 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. 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.Overfilling the bath may damage the insulation and affects stability.

Overfilling the bath may damage the insulation and affects stability.

- 10 -

Autorefill (Optional)Autorefill (Optional)

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 Thermo NESLAB. Contact our Sales Department for

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

The autorefill device requires its own source of electrical power. The connec-

tor 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 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.

AnalogAnalog

Analog Start UpStart Up

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 115V units 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

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 AdjustmentTemperature Adjustment

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 -

DigitalDigital

Digital Start UpStart Up

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 115V units 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

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 AdjustmentTemperature Adjustment

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.

- 13 -

Tap WaterTap Water

Tap Water

Cooling CoilsCooling Coils

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 3/8inch 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 Thermo 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 HeaterBoost Heater

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/High Temperature/

High Temperature/

Low Liquid Level SafetyLow Liquid Level Safety

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 tem-

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

tions. A High Temperature/Low Liquid Level fault occurs when the tempera-

ture 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:NOTE:

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 Accessory15-Pin Accessory

15-Pin Accessory

Connector (Optional)Connector (Optional)

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 #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

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 -

SectionSection

SectionV MaintenanceV Maintenance

V MaintenanceV Maintenance

V Maintenance

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

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

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

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 informa-

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

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.

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.

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 also recommends the use of Chloramine-T, 1 gram per

3.8 liters.

- 17 -

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(es) or, for units without a reset

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

No external circulationNo external circulation

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 andService Assistance and

Service Assistance and

Technical SupportTechnical Support

Technical SupportIf, 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 -

SectionSection

SectionVII PrVII Pr

VII PrVII Pr

VII Programming Softwareogramming Software

ogramming Softwareogramming Software

ogramming Software

NEScom SoftwareNEScom Software

NEScom Software 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.

View a virtual controller screen which allows

remote monitoring and operation of product

control panel.

- 19 -

Installation

Stellen Sie das Gerät auf einen stabilen Tisch

oder Labortisch. Die Umgebungstemperatur sollte

zwischen +10 °C und +27 °C liegen.

Vergewissern Sie sich, daßdie 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-Anschlußan 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 Thermo 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, daßdie elektrischen Anschlüsse und die

Rohr- u. Schlauchanschlüsse sachgemäß

installiert sind und daßdas gesamte System mit

Kühlflüssigkeit gefüllt ist.

EX - Serie KEX - Serie K

EX - Serie Kurzbedienurzbedien

urzbedienurzbedien

urzbedienungsanleitungungsanleitung

ungsanleitungungsanleitung

ungsanleitung

AppendixAppendix

Appendix

International QuicInternational Quic

International Quick Refk Ref

k Refk Ref

k Reference Guideserence Guides

erence Guideserence Guides

erence Guides

Geräte, die bei 220 Volt betrieben werden,

verfügen über einen Stromkreisunterbrecher auf

der Rückseite des Gerätes. Vergewissern Sie sich,

daßdieser 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,

mußder 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

LED-Anzeige, 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 Temperatur-

Setpoint einzustellen, drücken Sie den Display-

Schalter, 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.

Thermo Scientific EX-111 Manual

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