Julabo FPW55-SL, FPW90-SL, FPW52-SL, FP90-SL, FP52-SL Instruction Manual

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English

Ultra-Low

www.julabo.com

Operating Manual

Refrigerated Circulators

air-cooled

FP52-SL FP55-SL FP90-SL

water-cooled

FPW52-SL FPW55-SL FPW90-SL FPW91-SL

• upgradable with supplementary pump - HSP

• upgradable with supplementary heater - HST

• special unit with bath opening for internal

temperature applications

19532830-V3.doc 09.02.16

JULABO USA, Inc. 884 Marcon Boulevard Allentown, PA 18109 Phone: +1(610) 231-0250 Fax: +1(610) 231-0260 info.us@julabo.com

Temperature control devices for research and industry are developed,

Congratulations!

You have made an excellent choice. JULABO thanks you for the trust you have placed in us. This operating manual has been designed to help you gain an understanding of the operation and possible applications of our circulators. For optimal utilization of all functions, we recommend that you thoroughly study this manual prior to beginning operation.

The JULABO Quality Management System

produced, and distributed according to the requirements of ISO 9001 and ISO 14001. Certificate Registration No. 01 100044846

Unpacking and inspecting

Unpack the circulator and accessories and inspect them for possible transport damage. Damage should be reported to the responsible carrier, railway, or postal authority, and a damage report should be requested. These instructions must be followed fully for us to guarantee our full support of your claim for protecting against loss from concealed damage. The form required for filing such a claim will be provided by the carrier.

Printed in Germany Changes without prior notification reserved

Important: keep operation manual for future use

1.953.2830-V3 02/16

TABLE OF CONTENTS

Operating manual ................................................................................................................ 5

1. Intended use ................................................................................................................. 5

1.1. Description ............................................................................................................... 5

2. Operator responsibility – Safety recommendations ....................................................... 6

2.1. Disposal ................................................................................................................... 8

2.2. Technical specifications ........................................................................................... 9

2.3. Mains power connections ....................................................................................... 15

2.4. Cooling water connection ....................................................................................... 17

Operating instructions ....................................................................................................... 18

3. Safety notes for the user ............................................................................................. 18

3.1. Explanation of safety notes .................................................................................... 18

3.2. Explanation of other notes ...................................................................................... 18

3.3. Safety recommendations ........................................................................................ 19

4. Operating controls and functional elements ................................................................ 21

5. Preparations ............................................................................................................... 25

5.1. Installation .............................................................................................................. 25

5.2. Bath fluids .............................................................................................................. 26

5.3. Temperature application to external systems ......................................................... 27

5.3.1. Tubing ............................................................................................................... 29

5.4. Filling / draining

...................................................................................................... 30

6. Operating procedures ................................................................................................. 31

6.1. Power connection ................................................................................................... 31

6.2. Switching on / Selecting the language .................................................................... 31

6.2.1. Switching on the circulator ................................................................................. 31

6.2.2. Switching on the cooling machine ...................................................................... 32

6.3. Start - Stop ............................................................................................................. 32

Setting of temperatures ................................................................................. 33

Safety installations, warning functions ........................................................... 33

8.0.1. Early warning system, low level protection ......................................................... 37

Menu functions .............................................................................................. 38

9.1. Start of a program .................................................................................................. 40

9.1.1. Status at the end of a program .......................................................................... 42

9.1.2. Indication after successful start .......................................................................... 42

9.1.3. Editing after Start ............................................................................................... 43

9.1.4. Interrupting a program ....................................................................................... 43

9.1.5. Interruption after a power failure ........................................................................ 44

9.1.6. Termination of a program................................................................................... 44

9.2. Program administration, creation ............................................................................ 45

9.3. Setting the pump pressure ..................................................................................... 49

9.4. Configuration .......................................................................................................... 50

9.4.1. Remote control via the serial interface ............................................................... 53

9.4.2. Keypad control or setpoint setting via the analog input ...................................... 53

9.4.3. Autostart ............................................................................................................ 54

9.4.4. Off-Mode ........................................................................................................... 54

9.4.5. ActVar - actuating variable ................................................................................. 55

9.4.6. Setting of clock and date .................................................................................... 56

9.4.7. Language ........................................................................................................... 56

9.4.8. Unit ..................................................................................................................... 56

9.4.9. Program type ...................................................................................................... 56

9.4.10. Reset ............................................................................................................. 56

9.5. Control .................................................................................................................... 57

9.5.1. Control internal / external ................................................................................... 59

9.5.2. Selftuning ........................................................................................................... 60

9.5.3. Dynamik intern ................................................................................................... 60

9.5.4. CoSpeed - extern ............................................................................................... 61

9.5.5. Control parameters – internal/external ................................................................ 61

9.6. Serial Interface ........................................................................................................ 63

9.7. ATC Absolute Temperature Calibration, 3-point calibration ..................................... 64

9.7.1. ATC Fühler - intern / extern ................................................................................ 67

9.7.2. ATC Status - yes / no ......................................................................................... 67

9.7.3. Type 1 -/ 2 -/ 3 point .......................................................................................... 67

9.7.4. Example: 3-point calibration for internal control ................................................. 68

9.8. Limits ...................................................................................................................... 70

9.8.1. Limits for internal control and external control.....................................................

9.8.2. Limits for external control.................................................................................... 72

9.9. Analog inputs/outputs ............................................................................................. 73

9.9.1. Control connector ............................................................................................... 77

9.9.2. Outputs of the connector - REG+E-PROG .......................................................... 77

9.9.3. Input of the connector - REG+E-PROG .............................................................. 78

9.9.4. External Stand-by input ...................................................................................... 80

9.9.5. Alarm-output ....................................................................................................... 81

10. Troubleshooting guide / Error messages ..................................................................... 82

11. Electrical connections .................................................................................................. 85

12. Remote control ............................................................................................................ 88

12.1. Setup for remote control .......................................................................................... 88

12.2. Communication with a PC or a superordinated data system ................................... 88

12.3. List of commands .................................................................................................... 89

12.4. Status messages .................................................................................................... 92

12.5. Error messages....................................................................................................... 92

13. JULABO Service – Online remote diagnosis ............................................................... 94

14. Installation of electronic module with analog connectors ............................................. 95

15. Cleaning / repairing the unit ......................................................................................... 95

Anhang: HST Zusatzheizer und HSP Zusatzpumpe .......................................................... 97

HST booster heater ..................................................................................................... 98

16.

16.1. Excess temperature protection on the HST booster heater ..................................... 99

16.2. Technical specifications - HST booster heater: ....................................................... 99

17. HSP booster pump .................................................................................................... 100

17.1. Pump connection with HSP booster pump ............................................................ 101

17.2. Technical specifications - HSP booster pump ....................................................... 101

18. WARRANTY PROVISIONS ....................................................................................... 102

Operating manual

JULABO circulators are not suitable for direct temperature control of foods, semi-

medium (bath fluid).

ICC

TCF

ATC

RS232 RS485

Pt100

PUMP

SMART

applications.

1. Intended use

JULABO circulators have been designed to control the temperature of specific fluids in a bath tank. The units feature pump connections for temperature control of external systems (loop circuit).

luxury foods and tobacco, or pharmaceutical and medical products. Direct temperature control means unprotected contact of the object with the bath

1.1. Description

 The circulators are operated via the splash-proof keypad. The implemented

microprocessor technology allows to set and to store different values that can be indicated on the VFD COMFORT-DISPLAY and LCD DIALOG-DISPLAY. Three menu keys facilitate adjusting setpoints, warning and safety functions and menu functions.

 The integrated programmer allows storing and running temperature and time-

dependent processes.

 The control electronics including “ICC - Intelligent Cascade Control“ automatically

adapts the heat supplied to the thermal requirements of the bath.

 The TCF - Temperature Control Features allow the user to have access to all

important temperature control parameters. This means: Full control on the control mode and the chance to manually adjust or adapt control to the specific application.

 Absolute Temperature Calibration (ATC3) provides high temperature stability in the

bath. With the 3-point calibration an offset is adjusted at three temperatures to ensure an accurate temperature pattern at the selected spot in the bath over the full temperature range.

 Electrical connections:

The serial interface, switchable from RS232 to RS485, allows modern process technology without additional interface. Connection for Pt100 external sensor for external temperature measurement and control. Alarm output for external alarm message or control of JULABO refrigerating baths or solenoid valve (cooling water). The electronic module (option) provides 3 further analog connections (alarm input, standby input, recorder output, programmer input).

 The excess temperature protection conforming to IEC 61010-2-010 is a safety

installation independent from the control circuit. This protection can be indicated and set on the LCD DIALOG-DISPLAY.

 The early warning system for low level signals that bath fluid needs to be refilled

before the low level protection conforming to IEC 61010-2-010 causes a complete shut-down of the main functional elements.

 Intelligent pump system: The pump capacity (electronically adjustable via the motor

speed) enables to adapt to varying conditions for internal and external temperature

Operator responsibility – Safety recommendations

2. Operator responsibility – Safety recommendations

The products of JULABO ensure safe operation when installed, operated, and maintained according to common safety regulations. This section explains the potential dangers that may arise when operating the circulator and also specifies the most important safety precautions to preclude these dangers as far as possible.

 The operator is responsible for the qualification of the personnel operating the units.  The personnel operating the units should be regularly instructed about the dangers involved with

their job activities as well as measures to avert these dangers.

 Make sure all persons tasked with operating, installing, and maintaining the unit have read and

understand the safety information and operating instructions.

 When using hazardous materials or materials that could become hazardous, the circulator may be

operated only by persons who are absolutely familiar with these materials and the circulator. These persons must be fully aware of possible risks.

If you have any questions concerning the operation of your unit or the information in this manual, please contact us!

Contact

Safety instructions for the operator:

 You have received a product designed for industrial use. Nevertheless, avoid strikes to the

housing, vibrations, damage to the operating-element panel (keypad, display), and contamination.

 Make sure the product is checked for proper condition regularly (depending on the conditions of

use). Regularly check (at least every 2 years) the proper condition of the mandatory, warning, prohibition and safety labels.

 Make sure that the mains power supply has low impedance to avoid any negative effects on

instruments being operated on the same mains.

 This unit is designed for operation in a controlled electromagnetic environment. This means that

transmitting devices (e.g., cellular phones) should not be used in the immediate vicinity. Magnetic radiation may affect other devices with components sensitive to magnetic fields (e.g., monitors). We recommend maintaining a minimum distance of 1 m.

 Permissible ambient temperature: max. 40 °C, min. 5 °C.  Permissible relative humidity: 50% (40 °C).  Do not store the unit in an aggressive atmosphere.  Protect the unit from contamination.  Do not expose the unit to sunlight.

JULABO USA, Inc. 884 Marcon Boulevard Allentown, PA 18109

Phone: +1(610) 231-0250 Fax: +1(610) 231-0260 info.us@julabo.com www.julabo.com

Appropriate operation

Only qualified personnel is authorized to perform configuration, installation, maintenance and repairs of the circulator. Routine operation can also be carried out by untrained personnel who should however be instructed by trained personnel.

Use:

The bath can be filled with flammable materials. Fire hazard! There might be chemical dangers depending on the bath medium used. Observe all warnings for the used materials (bath fluids) and the respective instructions (safety data sheets). Insufficient ventilation may result in the formation of explosive mixtures. Only use the unit in well ventilated areas.

Only use recommended materials (bath fluids). Only use non-acid and non corroding materials.

When using hazardous materials or materials that could become hazardous, the operator must affix the enclosed safety labels to the front of the unit so they are highly

visible:

If this unit is intended for use within the United States of America, all 3 warning labels must be affixed to the housing of the unit prior to use. Directions for the positioning of the individual warning labels are enclosed with the warning labels included in the delivery. Warning labels must be easily visible to users.

Warning label W00: Colors: yellow, black Danger area. Attention! Observe instructions. (operating manual, safety data sheet)

Mandatory label M018: Colors: blue, white Carefully read the user information prior to beginning operation.

Scope: EU

Semi S1-0701 Table A1-2 #9 Carefully read the user information prior to beginning operation.

Scope: USA, NAFTA

Warning label Proposition 65

Particular care and attention is necessary because of the wide operating range. There are thermal dangers: Burn, scald, hot steam, hot parts and surfaces that can be touched.

Warning label W26: Colors: yellow, black

Hot surface warning. (The label is put on by JULABO)

Observe the instructions in the manuals for instruments of a different make that you connect to the circulator, particularly the respective safety recommendations. Also observe the pin assignment of plugs and technical specifications of the products.

Operator responsibility – Safety recommendations

Contact an authorized waste management company in your country.

2.1. Disposal

The circulator contains a back-up battery that supplies voltage to memory chips when the unit is switched off. Do not dispose of the battery with household waste! Depending on battery regulations in your country, you might be obliged to give back used or defect batteries to gathering places. The product may be used with oil as bath fluid. These oils fully or partially consist of mineral oil or synthetic oil. For disposal, observe the instructions in the safety data sheets.

This unit contains refrigerants, which at this time are not considered harmful to the ozone layer. However, over the long operating period of the unit, disposal rules may change. Therefore, only qualified personnel should handle the disposal.

Disposal with household waste (unsorted waste) or similar collections of municipal waste is not permitted!

air-cooled

water-cooled

working temperature range

Medium ethanol

3.0 2.8 1.6 0.65 0.1

(WxL)

2.2. Technical specifications

Ultra-Low Refrigerated Circulator

Working temperature range °C -60 ... 100

Special unit with extended

Temperature stability °C ±0.05

Cooling capacity

Cooling compressor 1-stage

Refrigerant R404A

Cooling water flow rate at 20 °C l/h approx. 300

Overall dimensions (WxDxH) cm 59x76x116

Filling port dia. cm 7

Special unit with bath opening

FP52-SL

°C -60 ... 150

°C

cm 28x23

+20 0 -20 -40 -60

FPW52-SL

Bath depth cm 22

Filling volume liters 24

Weight kg 156 153

Ambient temperature °C 5 ... 40

Cooling water connection ------ G3/4“ male thread

Mains power connection V/ Hz 400 V/3PNPE/ 50 Hz 400 V/3PNPE/ 50 Hz

Current draw (at 400 V) A 21 20

Mains power connection V/ Hz 208 V/3PPE/ 60 Hz 208 V/3PPE/ 60 Hz

Current draw (at 208 V) A 25 24

Mains power connection V/ Hz 230 V/3PPE/ 50 Hz

Current draw (at 230 V) A 25 --

 Current draw: Refer to notice page 15

All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C Technical changes without prior notification reserved.

Operator responsibility – Safety recommendations

air-cooled

water-cooled

working temperature range

Medium ethanol

5.2 4.1 2.2 0.7 0.13

(WxL)

Ultra-Low Refrigerated Circulator

Working temperature range °C -60 ... 100

Special unit with extended

Temperature stability °C ±0.05

Cooling capacity

Cooling compressor 1-stage

Refrigerant R404A

Cooling water flow rate at 20 °C l/h approx. 400

FP55-SL

°C -60 ... 150

°C

+20 0 -20 -40 -60

FPW55-SL

Overall dimensions (WxDxH) cm 85x76x116

Filling port dia. cm 7

Special unit with bath opening

Bath depth cm 23

Filling volume liters 27

Weight kg 180 146

Ambient temperature °C 5 ... 40

Cooling water connection ------ G3/4“ male thread

Mains power connection V/ Hz 400 V/3PNPE/ 50 Hz 400 V/3PNPE/ 50 Hz

Current draw (at 400 V) A 20 20

Mains power connection V/ Hz 208 -230V/3PPE/ 60 Hz 208-230 V/3PPE/ 60 Hz

Current draw (at 208 V / 230 V) A 28 28

cm 28x23

59x76x116

 Current draw: Refer to notice page 15

All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C Technical changes without prior notification reserved.

air-cooled

water-cooled

working temperature range

Medium ethanol

1.8 1.7 1.6 1.35 0.75 0.15

(WxL)

Ultra-Low Refrigerated Circulator

Working temperature range °C -90 ... 100

Special unit with extended

Temperature stability °C ±0.05

Cooling capacity

Cooling compressor 2-stage

Refrigerant R404A / R23

Cooling water flow rate at 20 °C l/h ----- approx. 250

Overall dimensions (WxDxH) cm 59x76x116

Filling port dia. cm 7

Special unit with bath opening

FP90-SL

°C -90 ... 150

°C

cm 28x23

+20 0 -20 -40 -60 -80

FPW90-SL

Bath depth cm 20

Filling volume liters 22

Weight kg 195 195

Ambient temperature °C 5 ... 40

Cooling water connection ------ G3/4“ male thread

Mains power connection V/ Hz 400 V/3PNPE/ 50 Hz 400 V/3PNPE/ 50 Hz

Current draw (at 400 V) A 22 19

Mains power connection V/ Hz 208-230 V/3PPE/ 60 Hz 208-230 V/3PPE/ 60 Hz

Current draw (at 208 V / 230 V) A 29 26

Mains power connection V/ Hz 230 V/3PPE/ 50 Hz 230 V/3PPE/ 50 Hz

Current draw (at 230 V) A 29 26

 Current draw: Refer to notice page 15

All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C Technical changes without prior notification reserved.

Operator responsibility – Safety recommendations

water-cooled

Medium ethanol

4.5 4.1 3.7 3.1 2.0 0.75

(WxL)

Ultra-Low Refrigerated Circulator

Working temperature range °C -91 ... 100

Temperature stability °C ±0.2

FPW91-SL

Cooling capacity

Cooling compressor 2-stage

Refrigerant R404A / R23

Cooling water flow rate at 20 °C l/h approx. 450

Overall dimensions (WxDxH) cm 85x76x116

Filling port dia. cm 7

Special unit with bath opening

Bath depth cm 20

Filling volume liters 22

Weight kg 216

Ambient temperature °C 5 ... 40

Cooling water connection G3/4“ male thread

Mains power connection V/ Hz 400 V/3PNPE/ 50 Hz

°C

cm 28x23

+20 0 -20 -40 -60 -80

Current draw (at 400 V) A 32

Mains power connection V/ Hz 230 V/3PPE/ 60 Hz

Current draw (at 230 V) A 32

 Current draw: Refer to notice page 15

All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C Technical changes without prior notification reserved.

Temperature selection digital

via keypad indication on LCD DIALOG-DISPLAY (°C/°F)

remote control via PC indication on monitor

Temperature indication VFD COMFORT-DISPLAY (°C/°F)

Resolution °C 0.01

ATC3 INT / EXT °C ±3 / ±9

Temperature control ICC - Intelligent Cascade Control

Heater wattage (at 230 V) 3.0

Electronically adj. pump capacity stages 1 ... 4

Flow rate at 0 bar l/min 22 ... 26

Max. pressure at 0 liters bar 0.7

Max. suction at 0 liters bar 0.4

Pump connections, male mm M16x1

Electrical connections: See page 14

Ambient temperature °C 5 ... 40

Mains power connection V/ Hz 208 V - 230 V/ 50/60 Hz

Current draw (at 208 V / 230 V) A 13 / 14

All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C Technical changes without prior notification reserved.

Operator responsibility – Safety recommendations

Caution:

Electrical connections:

External alarm device 24-0 V DC / max. 25 mA Computer interface RS232 or RS485 External Pt100 sensor

Optional for HL, SL (Order No. 8900100 Electronic module with analog connections) Programmer input -100 °C to 400 °C = 0 - 10 V or 0 - 20 mA or 4 - 20 mA Input for the signal of a flow meter or external manipulated variable Temperature recorder outputs 0 - 10 V (0 V = -100 °C, 10 V = 400 °C) 0 - 20 mA (0 mA = -100 °C, 20 mA = 400 °C) 4 - 20 mA (4 mA = -100 °C, 20 mA = 400 °C) Standby input for external emergency switch-off Alarm output for external alarm signal

Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 0 °C ... 320 °C Low liquid level protection float switch Classification according to DIN 12876-1 class III

Supplementary safety installations Early warning system for low level float switch High temperature warning function optical + audible (in intervals) Low temperature warning function optical + audible (in intervals) Supervision of working sensor plausibility control Reciprocal sensor monitoring between working and safety sensors difference >35 K Alarm message optical + audible (permanent) Warning message optical + audible (in intervals)

Environmental conditions according to IEC 61 010-1: Use indoors only. Altitude up to 2000 m - normal zero. Ambient temperature: see Technical specifications Humidity: Max. relative humidity 80% for temperatures up to +31 °C, linear decrease down to 50% relative humidity at a temperature of +40 °C Max. mains voltage fluctuations of ±10% are permissible. Protection class according to IEC 60 529 IP21 The unit corresponds to Class I Overvoltage category II Pollution degree 2

The unit is not suitable for use in explosive environment

EMC requirements according to EN 61326-1 This unit is an ISM device classified in Group 1 (using high frequency for internal purposes), Class A (industrial and commercial range).



Note concerning current consumption: Mains power connection 3PNPE and 3PPE

shares (2x3 kW) on the two other phases..

Model Mains power connection 3PNPE

2.3. Mains power connections

The indicated value of current consumption is the maximum useful current of the phase, which also feeds the SL circulator with a 3 kW heater. If the ultra-low refrigerated circulator is operated with the HST additional heater, the 6 kW heating capacity is divided in equal

FP52-SL 400 V/3PNPE/50 Hz FPW52-SL 400 V/3PNPE/50 Hz

FP55-SL 400 V/3PNPE/50 Hz FPW55-SL 400 V/3PNPE/50 Hz

FP90-SL 400 V/3PNPE/50 Hz FPW90-SL 400 V/3PNPE/50 Hz

FPW91-SL 400 V/3PNPE/50 Hz

Operator responsibility – Safety recommendations

Model Mains power connection 3PPE

FP52-SL 230 V/3PPE/50 Hz

FP52-SL 208 V/3PPE/60 Hz FPW52-SL 208 V/3PPE/60 Hz

FP55-SL 208 V/3PPE/60 Hz FPW55-SL 208 V/3PPE/60 Hz

FP90-SL 230 V/3PPE/50 Hz FPW90-SL 230 V/3PPE/50 Hz

FP90-SL 230 V/3PPE/60 Hz FPW90-SL 230 V/3PPE/60 Hz

Model Mains power connection 3PPE

FPW91-SL 230 V/3PPE/60 Hz

Attention:

Pay attention to the rotary field direction of the compressor engines! The rotating field direction is to the right.

Note concerning current consumption:

Each, the SL circulator, the additional HST heater and the cooling unit FPW91 have their own supply mains.

Notice: Cooling water circuit

location where the unit is operated.

• Avoid putrid water.

7.5 to 9.0

Sulfate [SO4 2- ]

< 100 ppm

Hydrocarbonate [HCO 3-]/sulfate [SO4 2-]

> 1 ppm

Hardness [Ca 2+, Mg 2+]/[HCO 3-]

> 0.5 °dH

Alkalinity

60 ppm < [HCO 3-] < 300 ppm

Conductivity

< 500 μS/cm

Chloride (Cl -)

< 50 ppm

Phosphate (PO4 3-)

< 2 ppm

Ammonia (NH3)

< 0.5 ppm

Free chlorine

< 0.5 ppm

Trivalent iron ions (Fe 3+)

< 0.5 ppm

Manganese ions (Mn 2+)

< 0.05 ppm

Carbon dioxide (CO2)

< 10 ppm

Hydrogen sulfide (H2S)

< 50 ppm

Content of oxygen

< 0.1 ppm

Algae growth

impermissible

Suspended solids

impermissible

2.4. Cooling water connection

Cooling water pressure (IN/OUT) max. 6 bar Pressure difference (IN - OUT) 3.5 to 6 bar Cooling water temperature < 20 °C

Risk of oil leaking from the refrigeration system (compressor) of the recirculating cooler into the cooling water in case of a fault in the cooling water circuit!

Observe the laws and regulations of the water distribution company valid in the

Notice:

Danger of corrosion of heat exchanger due to unsuitable quality of cooling water.

• Due to its high content of lime, hard water is not suitable for cooling and causes scale in the heat exchanger.

• Ferrous water or water containing ferrous particles will cause formation of rust even in heat exchangers made of stainless steel.

• Chlorinated water will cause pitting corrosion in heat exchangers made of stainless steel.

• Due to their corrosive characteristics, distilled water and deionized water are unsuitable and will cause corrosion of the bath.

• Due to its corrosive characteristics, sea water is not suitable.

• Due to its microbiological (bacterial) components, which settle in the heat

exchanger, untreated and unpurified river water and water from cooling towers is unsuitable.

• Avoid particulate matter in cooling water.

Recommended quality of cooling water:

Operating instructions

In addition to the safety warnings listed, warnings are posted throughout the operating

Warning:

Caution:

Notice:

in its surroundings can be damaged.

Note! Draws attention to something special.

Important! Indicates usage tips and other useful information.

This icon is used in the operating instructions to indicate which have to be set or confirmed.

Operating instructions

3. Safety notes for the user

3.1. Explanation of safety notes

manual. These warnings are designated by an exclamation mark inside an equilateral triangle. “Warning of a dangerous situation (Attention! Please follow the documentation).” The danger is classified using a signal word. Read and follow these important instructions for averting dangers.

Describes a possibly highly dangerous situation. If these instructions are not followed, serious injury and danger to life could result.

Describes a possibly dangerous situation. If this is not avoided, slight or minor injuries could result. A warning of possible property damage may also be contained in the text.

Describes a possibly harmful situation. If this is not avoided, the product or anything

3.2. Explanation of other notes

flashing values or parameters

these parts.

3.3. Safety recommendations

Follow the safety instructions to avoid personal injury and property damage. Also, the valid safety instructions for workplaces must be followed.

• Only connect the unit to a power socket with an earthing contact (PE – protective

earth)!

• The power supply plug serves as a safe disconnecting device from the line and

must always be easily accessible.

• Place the unit on an even surface on a base made of non-flammable material.

• Do not stay in the area below the unit.

• Make sure you read and understand all instructions and safety precautions listed in

this manual before installing or operating your unit.

• Set the excess temperature safety installation at least 25 °C below the fire point of

the bath fluid.

• Observe the limited working temperature range when using plastic bath tanks.

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

• Pay attention to the thermal expansion of bath oil during heating to avoid

overflowing of the fluid.

• Prevent water from entering the hot bath oil.

• Do not drain the bath fluid while it is hot!

Check the temperature of the bath fluid prior to draining (e.g., by switching the unit on for a short moment).

• Use suitable connecting tubing.

• Avoid sharp bends in the tubing, and maintain a sufficient distance from

surrounding walls.

• Make sure that the tubing is securely attached.

• Regularly check the tubing for material defects (e.g., for cracks).

• Never operate damaged or leaking units.

• Always turn off the unit and disconnect the mains cable from the power source

before performing any service or maintenance procedures, or before moving the unit.

• Always turn off the unit and disconnect the mains cable from the power source

before cleaning the unit.

• Always empty the bath before moving the unit.

• Transport the unit with care.

• Sudden jolts or drops may cause damage in the interior of the unit.

• Observe all warning labels.

• Never remove warning labels.

• Never operate units with damaged mains power cables.

• Repairs are to be carried out only by qualified service personnel.

 Some parts of the bath tank and the pump connections may become extremely hot

during continuous operation. Therefore, exercise particular caution when touching

Safety notes for the user

Caution:

determine the method of decontamination.

example.

defects or other reproductive harm.

The temperature controlling i.e. of fluids in a reactor constitutes normal circulator practice.

We do not know which substances are contained within these vessels. Many substances are:

• inflammable, easily ignited or explosive

• hazardous to health

• environmentally unsafe

i.e.: dangerous

The user alone is responsible for the handling of these substances!

The following questions shall help to recognize possible dangers and to reduce the risks to a minimum.

• Are all tubes and electrical cables connected and installed? Note: sharp edges, hot surfaces in operation, moving machine parts, etc.

• Do dangerous steams or gases arise when heating? Is an exhaust needed when working?

• What to do when a dangerous substance was spilled on or in the unit? Before starting to work, obtain information concerning the substance and

Notice: Check the safety installations at least twice a year!

• Excess temperature protection according to IEC 61010-2-010. With a screwdriver turn back the adjustable excess temperature protection until the shut-down point (actual temperature).

• Low level protection according to IEC 61010-2-010. To check the function of the float, it can be manually lowered with a screwdriver for

WARNING

This product contains chemicals known to the state of California to cause cancer, birth

4. Operating controls and functional elements

Mains power switch, illuminated for circulator

PS Capacity in % - with manipulated variable set to >serial<* or

Front view Rear view

Mains power switch, illuminated for cooling machine

VFD COMFORT-DISPLAY

Header: Control indicators Line 1: Actual value internal or external

The display is depending on the selected control mode in the menu > Control < (internal or external).

Line 2: Working temp. setpoint, constantly S xxx.xx

Line 3: Actual value (E = external or I = internal)

Alternating with the display in line 1

Use the keys PI Capacity in % - with manipulated variable set to >control<*

to indicate further values in line 3

Operating controls and functional elements

2.1

2.2

LCD DIALOG-DISPLAY

Navigation aid in MENU - Window

>eprog<* H Heater capacity in Watts U Mains voltage Volts F Flow rate in liters/minute (providing EPROG input set to >Flow rate<)

2.3

*refer to >MENU / CONFIGIGURATIO> page 40

Control indicators in the header: Heating / Cooling / Alarm /

emote control

Control indicators in the header: Temperature indication Internal or External actual value Temperature indication in °C or °F

Display for the adjusted pump pressure stage in the -OFF- mode. Display for the effective pump pressure stage (rotation speed) after start. Four stages, adjustable via the

Line 1: Setpoint and origin of setpoint programming

(Key / RS232 or RS485 / ext. Pt100 / EProg)

Line 2: Actual value - internal or external,

identical to line 1 of the VFD-COMFORT-DISPLAY

Line 3: Heating capacity in %.

Line 4: Control type: internal / external

button, in the menu >PUMP<.

Keys / : Selection of menu items / parameters

- Setting in line 3:

Actual value / parameter

Orientation aid in MENU - Window

Line 1 - name with allocation to key

2 Submenu Level 2 Example: CONFIGURATION

3 Submenu Level 3

Safety values

T – Setpoint

1 Main menu Level 1

A beep signals the end of setting

The above graph “front side” shows an example for standard display.

Keypad 2

Numeric keypad: numerals 0 to 9

Keypad 1 Navigation keys

4.1

4.2

4.3

1. Key: >OK< Start / Stop (pump / heater )

2. >OK< in the menu Menu item / select submenu for setting Save set value Save selected parameter

After the actions Start, Stop and change from VFD Display to standard display the key

is locked for a short time.

1. Key: >Return< Stop (pump / heater) Special display on VFD Display leave line 3.

2. >Return< in the menu one menu level down Correction function for parameters or values (prior to OK)

immediately back to standard display

- icon for „keep key pressed down“.

1. Key: >Up / Down <temperature – increase/decrease setpoint Push key quickly for single steps, Keep key pressed for fast change.

2. >Up/Down< in the menu selection of menu items / parameters

4.4

4.5

4.6

Menu keys

Key: start the menu > warning and safety values<

Key: start the menu >temperature setpoints<

Key: display of MENU structure

minus / decimal point

Backspace key on LCD DIALOG-DISPLAY.

Adjustable excess temperature protection according to IEC 61010-2-010

Operating controls and functional elements

ext Pt100

Socket for external measurement and control sensor 8

9 9a

Control cable of JULABO refrigerated circulator Socket: output for alarm messages

The circulator automatically recognizes the connected electronic module.

ALARM

Alarm output (for external alarm signal)

STAND-BY

REG+E-PROG

Connector for supplementary pump or solenoid valve

No control voltage in the -OFF- condition

14 Connector solenoid valve

2. Configurable for controlled counter cooling via solenoid valve

Fuses (for connectors 13, 14), T1.25A

16 17a

Mains power cable with plug for circulator Mains power cable with plug cooling machine

Built-in mains outlet for connection of circulator (230 V / 16 A) Not on - FPW91-SL - 230 V/3PPE/60 Hz

Drain screw with drain connection

21 22

23 Castor without brake (at the back)

and Special units with bath opening

or external setpoint programming

Interface RS232 / RS485: remote control via personal computer

SERIAL

Socket:

Option: Electronic module Order No. 8 900 100

Standby input (for external emergency switch-off)

Programmer input and temperature recorder output

17b

230 V / max. 1.25 A

1. No control voltage in the -OFF- condition

Mains fuses, T16A

Venting grid, removable

Pump connections suction pump pressure pump

Castor with brake (at the front)

Only water cooled models. Cooling water connectors. G 3/4"

25 Built-in mains outlet for connection of HST booster heater

Not on - FPW91-SL - 230 V/3PPE/60 Hz

5. Preparations

HST

HSP

19a

19b

SL Circulator

Bath opening 28x23

Important: For cooling water, see page 17

5.1. Installation

Top view:

Special unit

• Place the unit on an even surface on a pad made of non-flammable material. Using the castors move the unit to the intended location. For better stability, apply the holding breaks on the front casters.

Upgradable with supplementary pump - HSP see page 100

Upgradable with supplementary heater - HST see page 98

• Cooling machine, pump motor and electronics produce intrinsic heat that is dissipated via the venting openings! Never cover these openings!

• Keep at least 20 cm of open space on the front and rear venting grids.

• The place of installation should be large enough and provide sufficient

air ventilation to ensure the room does not warm up excessively because of the heat the instrument rejects to the environment. (Max. permissible ambient temperature: 40 °C). For a fault (leakage) in the refrigeration system, the standard EN 378 prescribes a certain room space to be available for each kg of refrigerant. The refrigerant quantity is specified on the type plate.

> For 0.52 kg of refrigerant R404A, 1 m > For 0.68 kg of refrigerant R23, 1 m

of space is required.

• Do not set up the unit in the immediate vicinity of heat sources and do not expose to sun light

• Before operating the unit after transport, wait about one hour after setting it up. This will allow any oil that has accumulated laterally during transport to flow back down thus ensuring maximum cooling performance of the compressor.

Only for water-cooled models: Ensure circulation of cooling water by connecting the tubing to the cooling water inlet and outlet at the rear of the refrigerated circulator.

G 3/4"

Cooling water connections: G 3/4"

Preparations

Caution:

corrosion in the bath, even in stainless steel.

Bath fluid

Temperature range

soft/decalcified water

5 °C to 80 °C

mixture water/glycol, mixture 1:1

-20°C to 50°C

Description

Order Number

10 liters

8 940 124

8 940 104

8 940 106

5 liters

8 940 125

8 940 105

8 940 107

Temperature range

°C

-30 ... 80

-80 ... 55

-50 ...105

Flash point

°C

124

Fire point

°C

142

Color

light yellow

clear

Description

H10

H20S

Order Number

10 liters

8 940 114

8 940 108

5 liters

8 940 115

8 940 109

Temperature range

°C

-20 ... 180

0 ... 220

Flash point

°C

190

230

Fire point

°C

216

274

Color

clear

light brown

5.2. Bath fluids

Carefully read the safety data sheet of the bath fluid used, particularly with regard to the fire point! If a bath fluid with a fire point of ≤65 °C is used, only supervised operation is possible.

Water: The quality of water depends on local conditions.

• Due to the high concentration of lime, hard water is not suitable for temperature control because it leads to calcification in the bath.

• Ferrous water can cause corrosion - even on stainless steel.

• Chloric water can cause pitting corrosion.

• Distilled and deionized water is unsuitable. Their special properties cause

Recommended bath fluids:

JULABO bath fluids

JULABO

Thermal

ATTENTION: The maximum permissible viscosity is 70 mm

See website for list of recommended bath fluids.

/s.

• No liability for use of other bath fluids!

with the cap nut.

T16A

T1.25A

ext

Pt100

SERIAL

ALARM

REG+ E-PROG

STAND-BY

Caution:

Fire or other dangers when using bath fluids that are not recommended:

Use only nonacidic and noncorrosive bath fluids.

JULABO assumes no liability for damage caused by the selection of an unsuitable bath liquid. Unsuitable bath fluids are fluids which, e.g.,

• are highly viscous (much higher than recommended at the respective working temperature)

• have a low viscosity and have creep characteristics

• have corrosive characteristics or

• tend to crack.

5.3. Temperature application to external systems

Caution: Securely attach all tubing to prevent slipping.

If the circulator is operated without external system, close the pump connector (22)

Temperature application to external, closed systems

The circulator is used for temperature application to external, closed systems (loop circuit) with simultaneous temperature application in the circulator bath.

Model combination without HSP booster pump

Pump connection:

• Unscrew the M16x1 collar nuts on the pump connectors with a 19 mm (3/4“) wrench and remove the sealing disks. Using the collar nuts, screw on the tubing connection fittings (for tubing 8 mm or 12 mm in diameter) delivered with the unit and tighten firmly. (Pressure pump: 22, suction pump: 21)

• Push on the tubing, and secure with tube clamps.

• Attach the tubing to the connectors of the external closed

system, e.g., an instrument with a pressure-resistant temperature jacket or a temperature coil, and fasten with tube clamps to prevent slipping.

Preparations

H = Height adjustment

T16A

T1.25A

ext

Pt100

SERIAL

ALARM

REG+ E-PROG

STAND-BY

Temperature application to external, open systems

The circulator is equipped with both a pressure and suction pump for external temperature application in open systems.

Differing flow rates of the pressure and suction pumps should be compensated. To maintain a constant liquid level, the JULABO „D+S“ Level Adapter is recommended for the external bath tank. The flow rate of the pressure pump will be then regulated by a built-in float device. The liquid level may be changed by a height adjustment on the „D+S“ Level Adapter.

Accessory: „D+S“ Level Adapter Order No. 8 970 410

Important:

 The liquid level should be equal in the internal and external

S = Suction pump connection D = Pressure pump connection K = Float

baths (absolute height).

 If you take out samples (for example Erlenmeyer flasks) from

the external bath, turn the circulator off with the Start/Stop key.

Backflow safety device

(see page 73)

If the liquid levels in the circulator bath and the external system are at different heights, overflowing must be prevented after the power has been turned off.

Flood hazard!

For this reason, solenoid valves for loop circuit or shut-off valves can be integrated in the loop circuit.

 Connect the valve to the connector (13).  If socket (14) is used:

In menu >Inputs/Outputs< set the menu item >SV-Out< to >Backflow<.

Order No. Description 8 980 701 Set of solenoid valves for loop circuit up to +100 °C

8 970 456 Shut-off valve (suitable up to +90 °C) 8 970 457 Shut-off valve (suitable up to +200 °C)

Order No. Length

Temperature range

8930008 1 m

CR® tubing 8 mm inner dia.

-20 °C to 120 °C

8930012 1 m

CR® tubing 12 mm inner dia.

-20 °C to 120 °C

8930108 1 m

Viton tubing 8 mm inner dia.

-50 °C to 200 °C

8930112 1 m

Viton tubing 12 mm inner dia.

-50 °C to 200 °C

8930410 1 m

Insulation for tubing 8 mm inner dia.

-50 °C to 100 °C

8930412 1 m

Insulation for tubing 12 mm inner dia.

-50 °C to 100 °C

8 930 209 0.5 m

8 930 214 3.0 m

Metal tubing, triple insulated, M16x1

-100 °C to +350 °C

8 930 220 0.5 m

8 930 223 3.0 m

Metal tubing, insulated, M16x1

-50 °C to +200 °C

Warning: Tubing:

• Preventive maintenance: Replace the tubing from time to time.

5.3.1. Tubing

Recommended tubing:

8 930 210 1.0 m 8 930 211 1.5 m

8 930 221 1.0 m 8 930 222 1.5 m

At high working temperatures the tubing used for temperature application and cooling water supply represents a danger source. A damaged tubing line may cause hot bath fluid to be pumped out within a short time. This may result in:

• Burning of skin

• Difficulties in breathing due to hot atmosphere

Safety recommendations

• Employ suitable connecting tubing.

• Make sure that the tubing is securely attached.

• Avoid sharp bends in the tubing, and maintain a sufficient distance from

surrounding walls.

• Regularly check the tubing for material defects (e.g. for cracks).

Preparations

protection.

Wait for a while and open the drain tap to drain the water.

5.4. Filling / draining

Notice:

• Pay attention to the thermal expansion of bath oil during heating to avoid overflowing of the liquid.

• Do not drain the bath fluid while it is hot! Recommendation: Temperature range 5 °C to 40 °C Check the temperature of the bath fluid prior to draining (by switching the unit on for a short moment, for example).

• Store and dispose the used bath fluid according to the laws for environmental

Filling

Take care that no liquid enters the interior of the circulator. Remove the bath cover and, if necessary, use a funnel.

Observe the level indication (19b).

• Recommended maximum filling level with water as bath fluid: 30 mm below the tank rim

• Recommended maximum filling level with bath oils: 40 mm below the tank rim

Special unit with bath opening 28x23 cm

 After filling, immerse the samples in the bath, or place the

lid on the bath if the opening is not to be used.

 The circulator has an early warning system for low level

(see description on page 37) that may be triggered when changing samples in the bath.

Draining:

• The drain tap is located behind the venting grid on the front of the unit, which can be taken off by removing 4 screws.

• Slide a short piece of tube onto the drain connection and hold it into a container.

• Loosen the drain screw a few turns and drain the unit completely.

• Tighten the drain tap.

Penetration of ice flakes/water into bath oil

At working temperatures below 0 °C humidity from the atmosphere may penetrate into bath oil through condensation. This may subsequently result in the formation of ice flakes, preventing the pump from proper operation. For this reason, the bottom of the bath tank provides a groove sloping down towards the drain tap. Thus water having penetrated into the bath

oil gathers in the groove immediately behind the drain tap. Shut down the refrigerated circulator at a bath temperature of +10 °C.

6. Operating procedures

Caution:

• We disclaim all liability for damage caused by incorrect line voltages!

FP52

see chapter 17. HSP booster pump

6.1. Power connection

• Only connect the unit to a power socket with earthing contact (PE – protective earth)!

• The power supply plug serves as safe disconnecting device from the line and must be always easily accessible.

• Never operate equipment with damaged mains power cables.

• Regularly check the mains power cables for material defects (e.g. for cracks).

Check to make sure that the line voltage matches the supply voltage specified on the identification plate.

• Connect the circulator with mains power cable (17a) to the mains outlet (18).

• Connect the control cable (9) to the  sockets (9a, 9b).

• Connect the refrigerated circulator with mains power cable (17b) to the mains socket.

 Note the direction of rotation of the built in fan!

For proper cooling of the compressor, the air must be drawn in from the front of the unit.

• For the supplementary heater see chapter 16. HST booster heater

• For the supplementary pump

6.2. Switching on / Selecting the language

6.2.1. Switching on the circulator

Switching on:

• Turn on the mains power switch (1a).

 The unit performs a self-test.

Then the software version (example: V 1.xx-xxxx) appears. The display „OFF“ or „R OFF“ indicates the unit is ready to operate.

 The circulator enters the operating mode activated before switching

the circulator off:

keypad control mode (manual operation) or remote control mode (operation via personal computer).

Operating procedures

deutsch / english

Switching on:

The VFD COMFORT-DISPLAY indicates the message "OFF".

6.2.2. Switching on the cooling machine

Selecting the language:

There are two options for the language of the LCD DIALOG-DISPLAY: German or English. Select the desired language in the menu >Configuration< under the submenu >Language/Sprache<.

Press the respective keys in the following order:



• Switch on the cooling machine using the switch (1b) .

 Control of the cooling machine

With the mains switch (1b) turned on, the circulator automatically switches the cooling machine off and on.

• It is switched off if:

- the current working temperature is increased by > 30 °C (cooling is not required).

- the heater operates at full power (> 800 W) for longer than 5 minutes.

• It is switched on if:

- cooling is necessary to maintain the bath temperature. After switch-off, the cooling machine automatically switches on only after a delay of 5 minutes to protect the cooling compressor.

3x up to menu Configuration

6x up to submenu >Language/Sprache<

6.3. Start - Stop



 To save energy, turn off the cooling machine with the mains switch

(1b) whenever cooling is not required.

Start:

• Press The actual bath temperature is displayed on the VFD COMFORTDISPLAY. The circulating pump starts with a slight delay.

Stop:

• Press key. or Keep

key.

key pressed.

7. Setting of temperatures

Factory settings:

Press the

3 different working temperatures can be adjusted. Their values are freely selectable within the operating temperature range.

key to call up the menu for temperature selection.

 The temperatures can be set in start or stop mode.

Setting of working temperature in the

1. Press the key

2. Select SETPOINT 1 or 2 or 3 using the key

3. Confirm by pressing the

 The circulator uses the new working temperature value for

temperature control.

Example: Adjustment/modification of the pre-setting of "SETPOINT 3"



If the active Setpoint is changed, the new value is immediately used for the control of the working temperature. The heater control indicator flashes.

. The value flashes

key.

or .

Setpoint3: Change the value from 70.00°C to 80.00°C. See standard display line 1

• Use the numeric keypad to enter

Then press enter

Notice: Refer to SETPOINT MAX / MIN in chapter „LIMITS“

to store the value.

and .

8. Safety installations, warning functions

Check the safety installations at least twice a year! Refer to page 20.

Settings for the excess temperature protection > SafeTemp< and for the

warning functions > OverTemp< and > SubTemp< are made in a menu which is called up by pressing the key

Menu item > Type< allows choosing between a warning and an alarm cut-off for the menu items > OverTemp< and > SubTemp<.

Safety installations, warning functions

by using the

For setting proceed as follows.

•

The alarm is indicated by optical and audible signals (continuous tone).

Warning:

The excess temperature protection must be set at least 25 °C below the fire point of the bath fluid used! In case of wrong setting there is a fire hazard! We disclaim all liability for damage caused by wrong settings!

SafeTemp:

Setting range: 20 °C ... 320 °C

 Rough setting can be effected

temperature scale.

SafeTemp:

Type:

OverTemp :

SubTemp:

Settings:

• Press the key

the menu item and confirm the by pressing the key .

• Set the new cut-out value within 30 seconds with a screw driver. Exact display and setting on LCD display Recommendation: Set over temperature-protective setting >SafeTemp< 5 °C to 10 °C above the set point of the working temperature.

Switch-over from warning to shutdown function

• Change the parameter by pressing the key pressing the key

pressing the key

Possible parameters: warning or alarm

• Set value on numeric keypad and confirm by pressing

Example: 83.00 °C

Press the keys

and by pressing the key or select

and confirm by

if the parameter is to be retained.

and and confirm by pressing

SafeSens:

Indicated is the temperature value of the safety sensor.

SafeTemperature:

Setting range: 20 °C ... 320 °C

Indicated is the cut-out value set with a screwdriver on the excess temperature protection device.

This safety installation is independent of the control circuit. When the temperature of the bath fluid has reached the safety temperature, a complete shutdown of the heater and pump is effected.

The following error message appears on the VFD COMFORT-DISPLAY:

OverTemp 87.0°C

SubTemp 83.0°C

Setpoint3 85.0°C

Press for help on the LCD 

 Depending on the setting of >ControlType - internal or external< the

actual temperature values for both sensors are shown/indicated on both displays.

Examples: I 94.06

Type: >Warning< or >Alarm<

For the two menu items >OverTemp< and >SubTemp< choose between a warning message being signaled or a complete shutdown of the main functional elements such as heater and circulating pump being effected.

OverTemperature: SubTemperature:

If for a sensitive temperature application task adherence to a working temperature value >Setpoint< is to be supervised, then set high and low temperature warning values. In the example below, the >Setpoint< of 85 °C is surrounded by the values >OverTemp< 87 °C and >SubTemp< 83 °C. The electronics immediately registers when the actual temperature attains a temperature out of the limits and it follows a reaction according to what is set in the menu item >-Type<.

and Ext. : xx.xx°C

 The warning functions are only triggered when the actual bath

temperature, after start from the „OFF“ or „rOFF“ mode, lies within the set limits for 3 seconds.

Safety installations, warning functions

• Setting >WARNING< A mere warning function with optical and audible warning signal (interval tone) A message appears on the VFD COMFORT-DISPLAY:

OverTemp SubTemp

The LCD –DISPLAY shows the message:

• Setting >ALARM< Temperature limit with shutdown of heater and circulating pump. An audible alarm sounds (continuous tone) and a message appears on the VFD COMFORT-DISPLAY:

OverTemp SubTemp

The LCD -DISPLAY shows the message

Press for help on the LCD

Warning:

8.0.1. Early warning system, low level protection

This low level protection is independent of the control circuit and is divided into two sections:

DBGM: 20306059.8

1. Switch in stage 1 recognizes a critical fluid level .

An audible warning (interval tone) sounds and a message appears on the VFD COMFORT-DISPLAY.

Refill bath fluid!

2. Switch in stage 2 recognizes a low fluid level

If stage 2 of the low level protection device (according to IEC 61010-2-010) is triggered, a complete shutdown of the heater and circulating pump is effected. A continuous alarm tone sounds and a message >ALARM< >CODE 01< appears on the VFD COMFORT-DISPLAY.

Press for help on the LCD 

Turn off the unit with the mains switch, refill bath fluid and turn the unit on again!

3. Float

4. Circulating pump

5. Heater

.

For refill always use the same bath fluid type that is already in the bath. Bath oils must not contain any water contaminants and should be pre-heated to the actual bath temperature! Explosion hazard at higher temperatures!

Menu functions

9. Menu functions



Menu level 1

The term „menu functions“ refers to adjustments such as

Start program Page 40

This menu will start a previously set program.

Administration and creation of programs Page 45

Electronically adjustable pump capacity Page 49

The capacity of the circulating pump is set by adjusting the motor speed.

Configuration of the unit Page 50 Remote – on / off (remote control via RS232) Setpoint ext - Switch over external setpoint setting Autostart – AUTOSTART on / off Off-Mode – Pump on / off ACTVAR - Switch over input variable Time / Date – setting time and date Language – english / deutsch Unit – Temperature values can be displayed in °C or °F. Program Type – Time or Gradient (grad) Reset – factory settings

Control characteristics and parameters Page 57 ControlType - Control internal or external Selftuning Dynamic - internal CoSpeed – external Control parameters - XP-, TN-, TV- internal Control parameters - XP-, TN-, TV- XPU-, external

Menu level 1

Adjustable interface parameters Page 63 BAUDRATE, PARITY, HANDSHAKE

ATC - Absolute Temperature Calibration, Page 64 Sensor calibration internal sensor, Sensor calibration external sensor 3-point calibration

Limitations of temperature and capacity Page 71 Setpoint Max / Min - Maximum and minimum setpoint Heating Max – Set maximum heating Cooling Max – Set maximum cooling Internal Max / Min – Limitation of the temperature range Upper band / Lower band – Band limit

Analog inputs/outputs Page 73 Recorder output – CHANNEL 1, 2, 3 EPROG – External programmer input Ext-StBy - Stand-By input ALARM - output

Menu functions

stored temperature programs to be called up and started. The profiles are





Level 2

Parameter /Value

9.1. Start of a program

The start menu of the integrated programmer allows one of six previously

started manually or via the integrated timer.

 Requirements:

1. Create a program. (refer to next chapter)

2. Return to the Start-MENU and confirm the desired setting of each

MENU item with the key

3. Set a start time (>TIME< >DATE< >YEAR<) if the program is to be started by the internal timer.



>Program Number< Select the program that should be started.

0 ... 5

> at Step< Select the Step at which the program should be

started. 0 … 59

> Runs < Select the number of program repetitions. 1 ... 99

> Program End< Status at program end .

StdBy, PSetp, Setp 1, Setp 2, Setp 3

> RUN < Start time (now / time)

Press the key if a parameter is to be retained. (prior to OK)

• Set a parameter using the numeric

keypad and confirm by pressing

Possible parameters: 0 …5

• Set a parameter using the numeric

keypad and confirm by pressing

Possible parameters: 0 … 59

• Set a parameter using the numeric

keypad and confirm by pressing

Possible parameters: 1 … 99

• Set desired parameters with

Possible parameters: StdBy , PSetp, Setp 1, Setp 2 , Setp 3

and .

Level 2

Parameter /Value



(see MENU configuration)

Submenu TIMER

• Set desired parameters with

and .

Confirm >now< with the program will start immediately or start at the set time under parameter (time ). Set time in the example below:

09. August 2009, 11:15 hrs

If the parameter time is selected, a further submenu opens for setting the start time.

Set the time for the start of the program in the submenu >3 TIMER<.

key and the

• Set starting time using the numeric

keypad and confirm by pressing

Example: (hh:mm)

Display of waiting time until start: The unit switches to waiting mode and a flashing line “wait” appears on the LCD DIALOG-DISPLAY. The start time and current time are permanently indicated on the display.

It might be necessary to check the correct setting of the internal real time clock

• Set day and month using the numeric

keypad and confirm by pressing

Example: (TT/MM)

• Set year using the numeric keypad and

confirm by pressing

Example: (JJJJ)

Confirm >Starten/Start?< by pressing and the program starts at the set time.

Menu functions

setpoint of the last program step is written to the position of setpoint 3

9.1.1. Status at the end of a program

Program end StdBy , PSetp, Setp 1, Setp 2 , Setp 3

This parameter is used to determine if the unit switches to the -OFFcondition at the end of a profile or if temperature control is continued, and the working temperature setpoint that is to be used if temperature control is continued.

StdBy – If the end of the profile is reached, the circulator switches to the -OFF- condition. The VFD display indicates the working temperature setpoint that was displayed in line 2 before the program was started (example: S 25.00 °C ).

PSetp –(Setpoint of the ProGrammer) At the end of the program, the

(example: 80.00 °C) and indicated in line 1 of the LCD display. The circulator operates and controls to this temperature until the key

is pressed or a new profile is started.

Setp 1, Setp 2, Setp 3 – (“Setp” short for Setpoint) Before starting the programmer, a temperature value is set for one of

the three setpoints in the menu. (example: setpoint 2 58.00 °C) The circulator operates and controls to this temperature at the end of the profile until the key

is pressed or a new program is started.

9.1.2. Indication after successful start

Examples:

The started programmer displays the currently calculated setpoint in line

1. The value changes until the final temperature of the section is reached (temperature ramp).

line: Setpoint of the programmer

line: Actual temperature value for internal control = IntAct: xxx.xx for external control = ExtAct: xxx.xx

line: Selected profile and the current section (step).

line: With the keys, the following information can be

displayed in line 4.

• Remaining time of the current section (standard display)

• Total remaining time: profile x number of repetitions

(All: Days/hours:minutes:seconds)

Particularities :

1. If a total time of more than 999 days is calculated, only the hours are displayed by the unit.

(All: hours:minutes:seconds)

2. If the time period of a section is edited after the start, then the remaining total time can no longer be displayed.

9.1.3. Editing after Start

Exit the editing modus anytime by pressing the key .

described on page 42 can no longer be displayed.

STAND-BY

Warning:

See Warning page 54 .

The programmer allows a running program to be edited.

Initiation and exit of the editing function:

• After the start enter the submenu „3 EDITOR“.by pressing the key

See chapter „program administration, creation“ page 45

•

Particularity for changes in a section that is currently in process.

 If the target temperature is changed, the slope of the ramp is

automatically calculated based on the remaining time of the section.

 If the time period is changed, the slope of the ramp is automatically

calculated based on the new total time of the section.

 The “remaining total time” (profile x number of repetitions) as

9.1.4. Interrupting a program



Press the The setpoint and time period set for the corresponding section are thus stopped at the values presently achieved. The instrument is put on hold and the message “pause” flashes on the LCD DIALOG DISPLAY.



A program can be interrupted or restarted by an external shut-off.

Important: For this, in the >Inputs/Outputs< menu, the menu item >Ext. StBy< must be set to >active< and in the >Configuration< menu, >Autostart< needs to be set

 Setpoint control and timer are interrupted by breaking the contact

“AK”. The instrument is put on hold and the message “Stand-By” flashes on the LCD DIALOG-DISPLAY.

key to interrupt or continue a profile.

Notice: This is not an actual emergency switch-off.

Following a power interruption, it would be possible in this condition for the instrument to restart automatically. The safety and warning functions of the instrument should always be used to their fullest capacity.

Menu functions

place. However, an uncontrolled change of the bath temperature has

9.1.5. Interruption after a power failure

9.1.6. Termination of a program

It is possible to operate the programmer safely in case of a power failure. Important: For this, >Autostart< needs to be set in the >Configuration< menu.

 If the AUTOSTART function is activated, the programmer starts

again at a point approx. 20 seconds before the interruption took

occurred.

 Power failure when the instrument is on hold if start is effected via

the built-in timer: If the starting time is not yet reached, the programmer is put on hold again. If the starting time is exceeded, the programmer starts immediately.

 A program can be terminated by pressing . The programmer

switches back to the Start menu.

Further procedures are defined in the MENU >START PROGRAM<, menu item >Program End <.

Example: >Program End - StdBy<

The VFD COMFORT-DISPLAY displays “OFF”.

Interruption after a power failure

In case of a power failure, the reaction of the circulator is the same as when switched off and on again with the mains switch.

The VFD COMFORT-DISPLAY displays “OFF”.

9.2. Program administration, creation

The integrated programmer permits fast and easy programming of

setpoint temperature sequences. This temperature sequence is called program. A program is composed of individual sections (Step). The sections are defined by duration (t) or Gradient (°/t) and target temperature. The target temperature is the setpoint (SP), which is achieved at the end of a section. The programmer calculates the temperature ramp from the difference in time and temperature.

Create programs

A flashing segment indicates that a number needs to be entered. Under the submenu “Edit”, enter a program number. Six programs may be stored (numbers 0 to 5).

When the program is running, only sections with complete information for the target temperature and time period are considered. It makes sense to skip section numbers in the profile in order to use them later for corrections to the profile.

Important: If a time of 00:00 is set for a profile, the profile is continued with the next section only after the setpoint temperature (±0.2 °C) is reached.

Example: Step (Nr.) 1 3 5 6 9 11 14 Setpoint (°C) 50 50 100 100 80 80 20 Time (h:m) 00:08 00.02 00:10 01:05 00:10 00:05 00:30

Menu functions

 Press the key if a parameter is to be retained. (prior to OK)

•

Editing

PrgNr: Set the program you wish to create. 0 ... 5



Level 2



SP : Setpoint

TI : Time [hh:mm] or GRD: Gradient [°/t] = [°/min] Change type of program in MENU >configuration<, menu item >Programmtyp/program type< .

ST: Step 0 … 59

Example:

Program (PrgNr.) 2 is to have a target temperature with a set point (SW) of 100.00 °C in section t (ABS) 3. Duration (ZI) 1 hour.

Select the program number.

• Set the desired >PrgNr.< by pressing

and .

Level 3



For the selected section >ST< a setpoint >SP< and the duration >TI< or the gradient >GRD< are entered in the right half of the input window.

Input window for >ST<, >SP< and >TI< / >GRD<

1. Set the desired Step >ST < by pressing

and .

2. Set set point >SP< by using the numeric keypad and

confirm by pressing

3. Set the time >TI< or a gradient >GRD< using the numeric

keypad and confirm by pressing



By confirming time or GRD the values on the left side of the input window are moved.

The values for the next section are entered in the right half

of the input window. See above 1. / 2. / 3.



Delete



It is possible to delete an entire program or consecutive sections

Delete PrgNr: Set the program you wish to delete

0 ... 5

Delete from Step X to Step X - (0 … 59)

Level 2

Level 3

Press the

key if a parameter is to be retained. (prior to OK)

Submenu >Delete<

• Set menu item >Delete PrgNr.< by pressing and .

• Set desired PrgNr with

Example: PrgNr. 0

Input window: delete sections.

• Select menu items >

after the other by pressing

• Select the desired section for every menu item by using the

numeric keypad and confirm by pressing Example: >from 0< >to 59<

from Step< and > to Step< one

and .

• Select menu item >delete< by pressing

• Confirm >Delete?< by pressing



The delete procedure is confirm by indication of the message >delete< on the LCD display.

and

Menu functions



Level 2

Level 3

Every program can be printed via the serial interface for control and documentation purposes.

 Press the key if a parameter is to be retained. (prior to OK)

Submenu >Print<

• Set menu item >Print PrgNr.< by pressing and .

• Set desired >PrgNr.< by pressing

and .

Example: 4

• Confirm

> Print< by pressing .

• Confirm >Print?< by pressing

 Printing and end of printing are confirmed by successive

messages on the LCD display as shown on the left.

9.3. Setting the pump pressure



Level 2

Example: Adjusted Effective

The capacity of the circulating pump is set by adjusting the motor speed

 Press the key if a parameter is to be retained. (prior to OK)

Submenu >Pump<

Adjustable pump capacity stage 1 ... 4

Illuminated display:

The set pump stage is displayed. Example: 1

• Confirm by pressing

• Set required pump stage by pressing

and .

Example: 3

for pump pressure

 Indication of the adjusted pump pressure stage in the –OFF- mode.  Indication of the effective pump pressure stage (rotational speed)

after start.

To protect the pump motor, the rotational speed changes with the load applied, for example, depending on the viscosity of the bath fluid at different working temperatures.

Flow rate: 22 ... 26 l/min

Pump capacity stage 1 2 3 4

Pump pressure [bar] 0.4 0.5 0.6 0.7

Suction pump [bar] 0.2 0.26 0.33 0.4

Total capacity [bar] 0.6 0.76 0.93 1.1 in a loop circuit

Menu functions

 Press the key if a parameter is to be retained. (prior to OK)

Level 2

Parameter level

 Connect SERIAL with PC.

analog socket >REG+EPROG<

9.4. Configuration



Remote control via serial interface.

Possible parameters: off / on

 Switch on and off remote control by

 First set the >type< of interface (RS232

pressing

or RS485) in the MENU >INTERFACE SERIAL< and then switch >Remote< to >on<.

and

 Control display in the top line

for Remote

External setpoint setting

Possible parameters: off / Eprog / PT100

• Switch over setpoint

setting by pressing

and

• Switch over setpoint setting by pressing

and

off – Setpoint setting with the keys or Setpoint setting via the analog socket „ext. Pt100 or

Autostart

Possible parameters: on / off

• Switch on and off Autostart by pressing

and

Level 2

Parameter level

Start/Stop

Time, Date, Year see next page

Pump-Mode Possible parameters: P. on / P. off

• Switch on and off >Off-Mode by

pressing and

P.on continuous operation of circulating

pump

P.off circulating pump is linked to

ActVar - actuating variable

Possible parameters: control, Eprog, serial

 Set desired parameters with

and .

 Programming of variables for the

parameters > serial < or > EPROG < is only accepted, if the unit is in Start mode

Language

Possible parameters: deutsch / english

• Set desired parameters with and .

Unit

Possible parameters: °C / °F

• Set desired parameters with and .

Program type

Possible parameters: time / grad

• Set desired parameters with and .

Menu functions

Level 2

Parameter level

Level 2

Level 3

Parameter / Value

Reset

• Return to factory settings by pressing

 >Reset?< returns all set values to the

factory setting except for date and time.

 A RESET can be effected only in the –

OFF- mode.

 During the message >Running < all

parameters are reset to factory settings.

Possible parameters: Time >hour:min Date >Day:Mon Year

• Succesively set time, date and year

using the numeric keypad and confirm by pressing

Example:

Only the actual time is displayed.

The internal real time clock allows starting a program any time. The clock is set to the local mean time (MEZ) at the factory.

 If the unit is operated in a different time zone, the clock can be

adjusted in this menu.

 Change summer/winter time in this menu

(See 12.1. Setup for remote control page 88)

9.4.1. Remote control via the serial interface

Factory setting: off

SERIAL

Setpoint is set via the serial RS232/RS485 interface through a PC or superordinated data system.

In the header of the VFD COMFORT-DISPLAY, an “ indicates that remote control mode is active.

 The selected setting is shown on the LCD DIALOG-DISPLAY.

IMPORTANT: additional measures for remote control

 RS232 or RS485:

First set >type< of interface in the MAIN MENU > Interface serial < the switch >Remote< to >on<.

 Connect the circulator to the PC using an interface cable.  Check the interface parameters of both interfaces (circulator and PC)

and make sure they match.

9.4.2. Keypad control or setpoint setting via the analog input

Factory setting: off

In addition to the serial interface via remote control the circulator offers the possibility to adjust the setpoint via analog interface >ext. Pt100< or >REG+E-PROG<.

R” illuminates. It

The selected mode is indicated on standard display.

Possible parameters:

off - Setpoint is set via the keypad or via the integrated programmer.

(factory setting

Pt100 - Setpoint setting via the analog socket „ext. Pt100“ using an

external temperature sensor or an appropriate voltage/current source.

Eprog - Can only be adjusted when an electronic module with analog

connections is used (option). Setpoint setting via the analog interface REG+E-PROG connection with an external voltage or current source or a programmer.

Important:

 Connect the external voltage or current source or a programmer to

the circulator via the socket REG+E-PROG (see page 78). In the menu >MENU Inputs/Outputs< set the parameter >ErogINPUT< and the input variables >Eprog-signal< (see page 78).

 The E-Prog input can only be used either under menu item

>Setpoint ext < or under menu item >ActVar<

Menu functions

9.4.3. Autostart

Possible parameters:

on - Autostart on

off - Autostart off (Factory setting)

Note:

The circulator has been configured and delivered by JULABO according to N.A.M.U.R. recommendations. This means for the start mode that the unit must enter a safe operating state after a power failure (nonautomatic start mode). This safe operating state is indicated by “OFF” or “R OFF” on the VFD-COMFORT-DISPLAY. A complete shutdown of the main functional elements such as the heater and circulating pump is effected simultaneously.

The values set on the circulator remain stored, and the unit is returned to operation by pressing the start/stop key (in manual control mode). In remote control mode, the values need to be resent by the PC via the interface.

Should such a safety standard not be required, the AUTOSTART function (automatic start mode) may be activated, thus allowing the unit to be started directly by pressing the mains power switch or using a timer.

Warning:

For supervised or unsupervised operation with the “AUTOSTART“ function avoid any hazardous situation to persons or property

Take care to fully observe the safety and warning functions of the circulator.

9.4.4. Off-Mode

 The AUTOSTART function can be used only if the setpoint is set via

>keyboard<, >eprog<, or >ext. Pt100<.

OFF-Mode

Normally the circulating pump is switched via the start/stop signal. However, if circulation should be maintained even in the -off- condition, the parameter >pump on< needs to be set.

Possible parameters:

P.on Circulating pump in continuous operation

P.off Circulating pump linked to Start/Stop (factory setting)

Important:

Note:

9.4.5. ActVar - actuating variable

The variable (ACTuating VARiable) corresponds to the extent to which the heater or cooling unit of the circulator is controlled. Heat or cold is applied to the bath according to this variable. If this happens with the control electronics of the circulator, called > control < in this particular case, the bath temperature is exactly heated and maintained constant at the adjusted setpoint.

 Programming of variables for the parameters > SERIAL < or >

EPROG < is only accepted, if the unit is in Start mode.

Possible parameters:

control – The internal control electronics of the circulator controls the

heater and the connected cooling unit. Self-tuning is possible.. (factory setting)

serial – – The heater or the connected cooling unit receives the control

signal via the serial interface. Self-tuning is not possible.

Eprog - The heater or the connected cooling unit receives the control

signal via the E-Prog input. Self-tuning is not possible.

- Setting requires electronic module.

Warning:

The working temperature range of the circulator is determined during configuration. If set to >Control<, this range cannot be exceeded. If set to > Serial < and > Eprog <, heat or cold is applied to the bath without control. The permissible maximum temperature can be exceeded. The user has to take adequate precautions for temperature control. Materials, such as gaskets or insulations for example, may be damaged or destroyed, if the permissible maximum temperature is exceeded.

The safety and warning functions > < of the instrument must always be used to their fullest capacity.

Set the parameter >Eprog< and the input variables also in the menu >Inputs/Outputs< (see page

The E-Prog input can only be used either under menu item >Setpoint ext< or under menu item > ActVar <.

78).

Menu functions

9.4.6. Setting of clock and date

The internal real time clock allows starting a program any time. The clock is set to the local mean time (MEZ) at the factory.

 If the unit is operated in a different time zone, the clock can be

adjusted in this menu.

 Change summer/winter time in this menu

9.4.7. Language

9.4.8. Unit

9.4.9. Program type

There are two options for the language of the LCD DIALOG-DISPLAY: German and English.

Possible parameters:

deutsch / english

Temperature values can be displayed in °C or °F.

With this change, all adjusted temperature values are converted and displayed in the new unit.

Possible parameters:

°C (factory setting)

°F

A program can be created with the parameters time or gradient.

Possible parameters:

time (factory setting)

9.4.10. Reset

Grd (Gradient) [°/t] = [°/min]

A Reset will return all values to factory setting except for date and time.

 A Reset can be effected in the >OFF< mode only.



The circulator is designed for internal and external temperature control.



Control Type internal

Parameter-Level

9.5. Control



This can be switched in this submenu. Only the set of parameters corresponding to the particular setting is displayed.

Control internal Control external

 For external temperature control and measurement connect a Pt100

external sensor to the socket at the rear of the circulator.

Press the key if a parameter is to be retained. (prior to OK)

Level 2 Parameter-Level

• Switch over control type by pressing

•

Possible parameters: intern / extern

 The control type can be adjusted in the

-OFF- mode only.



The parameter flashes, switch by pressing

Possible parameters: off / once / always.

and



The parameter flashes, switch by pressing

and

Possible parameters: aperio / normal

 This parameter affects the temperature

sequence in case of internal control.

Menu functions

Control Type internal

Parameter-Level

Control Type external

Parameter-Level

Setting range: 0.0 … 5.0

• The value flashes. Set by using the numeric

keypad and confirm by pressing

Example:

Setting range: 0.1 … 99.9 K

• The value flashes. Set by using the numeric

keypad and confirm by pressing

Setting range: 3 … 9999 s

• The value flashes. Set by using the numeric

keypad and confirm by pressing

Setting range: 0 … 999 s

• The value flashes. Set by using the numeric

keypad and confirm by pressing

Example:

• The value flashes. Set by using the numeric

keypad and confirm by pressing

Setting range: 0.1 … 99.9 K

• The value flashes. Set by using the numeric

keypad and confirm by pressing

Setting range: 3 … 9999 s

• The value flashes. Set by using the numeric

keypad and confirm by pressing

Setting range: 0 … 999 s

• The value flashes. Set by using the numeric

keypad and confirm by pressing

Setting range: 0.1 … 99.9 K

Pt100

Notice:

circuit

9.5.1. Control internal / external



The control type can be adjusted in the -OFF- mode only.

ext.

Possible parameters:

intern internal temperature control extern external temperature control with external Pt100 sensor

IMPORTANT:

Additional measures for external temperature control.

 Connect a Pt100 sensor to the socket on the rear of the circulator.



Sensor calibration of the external Pt100 sensor is performed in the >ATCalibration< menu.

 Suggested adjustments for external temperature control:

Upper band / Lower band and IntMax / IntMin see Section >Limits<.

Place the external sensor into the temperature-controlled medium and securely fix the sensor.

Pt100 M+R

 External temperature control does not allow the setpoint to be set via

the “ext. Pt100” socket.

Accessory: Pt100 external sensor

Order No. Description Material Cable 8981003 200x6 mm Ø, stainless steel 1.5 m

8981005 200x6 mm Ø, glass 1.5 m 8981006 20x2 mm Ø, stainless steel 1.5 m 8981010 300x6 mm Ø, stainless steel 1.5 m 8981015 300x6 mm Ø, stainless steel / PTFE coated 3 m 8981013 600x6 mm Ø, stainless steel / PTFE coated 3 m 8981016 900x6 mm Ø, stainless steel / PTFE coated 3 m 8981014 1200x6 mm Ø, stainless steel / PTFE coated 3 m 8981103 Extension cable for Pt100 sensor 3.5 m 8981020 M+R in-line Pt100 sensor

The M+R in-line Pt100 sensor is a flow sensor and can be installed loop

Menu functions

control.

°C

aperiodic

normal

setpoint

temp. stability

°C

aperiodic

normal

temperature ramp

temp. stability

9.5.2. Selftuning

When performing a selftuning for the controlled system (temperature application system), the control parameters Xp, Tn and Tv are automatically determined and stored.

Possible parameters:

off - no selftuning

The control parameters ascertained during the last identification are used for control purposes.

once - single selftuning (factory setting)

The instrument performs a single selftuning of the controlled system

after each start with the command via the interface.

always - continual selftuning

The instrument performs a selftuning of the controlled system whenever a new setpoint is to be reached. Use this setting only when the temperature application system changes permanently.

key or after receiving a start

9.5.3. Dynamik intern

This parameter affects the temperature sequence only in case of internal

Factory setting: APER (aperiodic)

Possible parameters:

normal Allows for reaching the setpoint faster – with

setpoint change or ramp function – but overshooting of up to 5 % is possible.

aperio Ramp function: the increase of temperature

occurs temporally offset and achieves the target temperature without overshooting. Setpoint change: The temperature increases at the same rate, the target temperature is achieved without overshooting.

 With both settings constant temperature is achieved

after approximately the same time.

°C

Setpoint

Int. temperature

Ext. temperature

9.5.4. CoSpeed - extern

9.5.5. Control parameters – internal/external

CoSpeed:

This parameter affects the temperature pattern only in case of external control.

Possible parameters: 0 ... 5

During selftuning, the control parameters Xp, Tn, and Tv of a controlled system are automatically determined and stored. The time required for tuning may vary depending on the controlled system. This controller design allows protection of sensitive objects requiring temperature control. As soon as a co-speed factor is set, it is considered in calculating the control parameters. As shown in the diagram, tuning times are shorter the higher the co-speed factor is, but overshoot can occur in the internal system.

Setting range: internal / external

0.1 ... 99.9 K

Setting range: internal / external 3 ...9999 s

Setting range: internal / external 0 ... 999 s

Control parameters – internal/external

The control parameters preset at the factory are in most cases adequate to achieve an optimal temperature pattern in the samples requiring temperature control. Each parameter may be manually set via the keypad if necessary to allow optimal control performance.

Proportional range >Xp<

The proportional range is the temperature range below the setpoint temperature value in which the control circuit reduces the heating power from 100% to 0%.

Resetting time >Tn< (Integral component)

Compensation of the remaining control deviation due to proportional control. An insufficient resetting time may cause instabilities to occur. An excessive resetting time will unnecessarily prolong compensation of the control difference.

Lead time >Tv< (Differential component)

The differential component reduces the control settling time. An insufficient lead time will prolong the time required to compensate for disturbance effects and cause high overshoot during run-up. An excessive lead time could cause instabilities (oscillations) to occur.

Setting range:

0.1 ... 99.9 K

Proportional range >Xpu<

The proportional range Xpu of the cascaded controller is only needed for external control.

Menu functions

°C

Xp too low

°C

Tv/Tn too low

°C

Xp too high or Tv too high

°C

Tv/Tn too high or Xp too high

°C

Optimization instructions for the PID control parameters:

optimum setting

Inappropriate settings may produce the following heat-up curves:

The heat-up curve reveals inappropriate control settings.

no: Data bits = 8; Stop bits = 1

9.6. Serial Interface

Factory settings: 4800 Baud even hardware handshake



Level 2 Parameter-level

For communication between the circulator and a PC or a superordinated process system, the interface parameters of both units must be identical. The adjustment is usually carried out one time only in the >Interface serial< menu.

RS232 RS485



 Press the key if a parameter is to be

retained. (prior to OK)

• The parameter flashes, switch by pressing

and

Possible parameters: RS232 / RS485

Address RS485: 0 to 127



• The parameter flashes, switch by pressing

and

Possible parameters:

4800 / 9600 / 19200 / 38400

• The parameter flashes, switch by pressing

and

Possible parameters: no/even/odd even: Data bits = 7; Stop bits = 1 odd: Data bits = 7; Stop bits = 1

• The parameter flashes, switch by pressing

and

Possible parameters: hardw / softw

Xon/Xoff-protocol (Software handshake) Protocol RTS/CTS (Hardware handshake)

Menu functions

ATC is used to compensate for a temperature difference between the

°C°CT 1

°C

T 1

°C

B (INT)

°C

B (EXT)

Pt100

ext

9.7. ATC Absolute Temperature Calibration, 3-point calibration

circulator and a defined measuring point in the bath tank that may develop for physical reasons. ATC internal external

Example: 1-point calibration

For ATC calibration, in steady state the bath temperature at the location of the temperature sensor (CT) is determined at the respective adjusted working temperature. This value is then set on the circulator in the menu >ATCalibration< under menu item > CTEMP X <.

Principle:

This can be a 1-point, 2-point or 3-point calibration.

3-point calibration

ATC (internal)

1 = Original curve

M = Temperature measuring instrument with temperature sensor B = Bath tank (INTernal or EXTernal) T = circulator

CT = Temperature on measuring point TT = Temperature on circulator

ATC (external)

The parameter flashes, switch by pressing



 Press the key if a parameter is to be retained. (prior to OK)



Level 2 Parameter-Level



•

and



The parameter flashes, switch by pressing

and

 >no< Carry out an ATC calibration  >yes< return to standard operation after

calibration.





If only a 1-point calibration is carried out, the following menu items are not indicated anymore

•

and

 A >1-point<, >2-point< or >3-point<

calibration can be carried out.

The value >TmpValue< is only indicated

 In addition the measured temperature

value >CalValue X< is saved during the next step.

• The value flashes. Set by using the

numeric keypad and confirm by pressing

Menu functions

The value >TmpValue< is only indicated

 In addition the measured temperature





If only a 2-point calibration is carried out, the following menu items are not indicated anymore

value >CalValue X< is saved during the next step.

• The value flashes. Set by using the

numeric keypad and confirm by pressing

The value >TmpValue< is only indicated.

 In addition the measured temperature



value >CalValue X< is saved during the next step..



• The value flashes. Set by using the

numeric keypad and confirm by pressing

function is set for the >intern< internal or the

9.7.1. ATC Fühler - intern / extern

In the first submenu the ATC >extern< external temperature sensor.

9.7.2. ATC Status - yes / no

Calibration can be carried out for the internal temperature sensor and for the external temperature sensor connected to the socket „ext. Pt100“. The circulator is able to save both parameter sets. However only the one which has been set under menu item > sensor < is displayed.

In the second submenu the ATC function for the temperature sensor selected above is activated >yes< or deactivated >no<.

>yes< (factory setting) The controller of the circulator uses the original

>no< An ATC calibration is to be carried out.



curve of the temperature sensor or the new curve measured during the ATC calibration.

Important: Set to >NO< during the calibration process

Important: Set to >yes< after calibration.

In the > Status < >yes< the ATC calibration always affects the current working temperature; also the one set via interface.

9.7.3. Type 1 -/ 2 -/ 3 point

A >1-point<, >2-point< or >3-point< calibration can be carried out.

First geometrically define the location for calibration (measuring point CT), then determine the temperature values of the calibration points. The type of calibrations also determines the number of the following pairs of values indicated on the LCD DIALOG-DISPLAY.

Pairs of values:

TmpValue X: Circulator temperature 1 or 2 or 3 (actual value TT )

CalValue X: Calibration temperature 1 or 2 or 3 (actual value CT )

The „calibration value“ is determined with a temperature measuring device and saved under menu item >CalValue<.

(value flashes

The actual temperature of the bath is simultaneously saved with the “calibration value“ >CalValue< and can be indicated for control purposes (value does not flash).

)

Menu functions

CalValue 3< (159.30 °C)





9.7.4. Example: 3-point calibration for internal control

In the temperature range from 80 °C to 160 °C the calibration curve of the

temperature sensor (TT) is to be adjusted to the actual temperatures at measuring point (CT).

80.00 °C

120.00 °C

160.00 °C

1. Set circulator to internal control:

 The type of control can be set only in the –OFF- mode.



2. Set working temperature setpoint See standard display line 1

• Example 80.00 °C

Press the keys

• The bath is heated up.

Wait for approx. 5 minutes until the temperature is constant.

3. Reading of temperature measuring device

Read the value of measuring point CT on the device and enter under menu item > CalValue X< by using the keypad.

CalValue 1< (79.70 °C) CalValue 2< (119.50 °C)

and and confirm by pressing .

4. Calibration

 Press the key if a parameter is to be retained. (prior to OK)  Setting is required only for the first calibration point.



Level 2 Parameter-Level



Set sensor: >intern<.

• The parameter flashes, switch by

pressing

Set to >no<

• The parameter flashes, switch by

pressing

A >3-point< calibration is carried out.

• The parameter flashes, switch by

pressing and

and

Return to 2. Set working temperature value: 120.00 °C

Return to 2. Set working temperature value: 160.00 °C



The value >TmpValue< is only indicated.

 In addition the measured temperature

value >CalValue X< is saved during the next step.

• The value flashes. Set by using the numeric keypad and confirm by pressing

The value >TmpValue< is only indicated.

 In addition the measured temperature

value >CalValue X< is saved during the next step.

• The value flashes. Set by using the numeric keypad and confirm by pressing



5. Return to standard operation



The value >TmpValue< is only indicated.

 In addition the measured temperature

value >CalValue X< is saved during the next step.

• The value flashes. Set by using the numeric keypad and confirm by pressing

Set >YES< after calibration. (Standard operation)

• The parameter flashes, switch by

pressing

and

Menu functions



9.8. Limits

The >Limits< menu allows the minimum and maximum values to be set for all important setting ranges and capacity variables.

Control internal

 Press the key if a parameter is to be retained. (prior to OK).



Level 2 Parameter-level



Control external

• The parameter flashes. Set by using the

numeric keypad and confirm by pressing

• The parameter flashes. Set by using the



numeric keypad and confirm by pressing

• The parameter flashes. Set by using the



numeric keypad and confirm by pressing

• The parameter flashes. Set by using the



numeric keypad and confirm by pressing



• The parameter flashes. Set by using the

numeric keypad and confirm by pressing

• The parameter flashes. Set by using the

numeric keypad and confirm by pressing

• The parameter flashes. Set by using the

numeric keypad and confirm by pressing

• The parameter flashes. Set by using the

9.8.1. Limits for internal control and external control



Set Max / Min– Maximum and minimum setpoint Restriction of the adjustable temperature range.

The limitation of the operating temperature range effects the temperature

setting in the menu with the key

Only setting of working temperatures which lie within the determined limits is possible Existing settings for Setpoint 1, -2, -3, as well as those for >OverTemp< and > SubTemp <, are automatically deferred into the limit range.

Setting range: -94,90 °C ... +300,0 °C

numeric keypad and confirm by pressing

Set maximum heating / cooling

The heating and cooling capacity of the unit are adjustable. 100 % corresponds to the technical specification of the equipment.

Setting range:

Heating Max – 0 to 100 % in 1 % steps Cooling Max – 0 to 100 % in 1 % steps

Menu functions

value is subtracted.

10203040506010

2030405060

[min]

100

150

200

°C

external system

Internal bath

BAND HIGH

BAND LOW

Sense of a band limitation:

9.8.2. Limits for external control

> SAFETMP <

INTERN MAX / MIN Restriction for the temperature range of the internal bath.

Setting range:

The limits IntMax and IntMin are only active in external control. IntMax and IntMin determine fixed limits for the temperature within the internal bath. The temperature controller cannot exceed these limits even if it would be necessary for achieving the temperature in an external system. Therefore it is possible that the external setpoint cannot be achieved.

Sense of limit setting:

-94,9 °C ... +300,0 °C

 Protects the bath fluid from overheating.  Prevents an undesired alarm shutdown by the excess temperature

protection - >ALARM CODE 14<. Set the value of > Int Max at least 5 °C below the value of >SafeTemp<.

 Protects the pump motor from high viscosity of the bath fluid at low

temperatures.

 For refrigerated circulators. Freezing protection when using water as

bath fluid.

Upper band: and Lower band:

The band limitation is active during external control. Varied, practiceoriented setting are feasible for heat-up and cool-down phases.

Setting range: 0 °C ... 200 °C

Upper band: and Lower band allow for the limitation of the difference between the temperatures in the internal bath and the external system to any maximum value for the heat-up and cool-down phase. During the heat-up phase this difference value is always added to the actual external temperature. During the cool-down phase the difference

 Protection of objects and samples

by gentle temperature control

 Protection of e.g. glass reactors

from thermal shock.

9.9. Analog inputs/outputs

ALARM

REG+ E-PROG

STAND-BY



NOTE:

Level 2

Parameter-Level

Level 2

Level 3

Parameter-level



In order to use the analog inputs and outputs, the circulator must be equipped with the electronic module, which is available as option. Order No. 8 900 100 Electronic module

This submenu enables the input and output values to be set for the programmer input and the temperature recorder outputs of the REG+EPROG socket.

The >STAND-BY< input and the >ALARM< output are configurable.



 If the electronic module is not installed, this menu can be used only to

switch the control of the solenoid valve (SV).

SV-Output Control connector (14) 230 V max. 1.25 A Channel 1 voltage output for recorder (V) Channel 2 voltage output for recorder (V)) Channel 3 current output for recorder (mA) EPROG external programmer input External standby Standby input

(for external emergency switch-off) Alarm output Output for external alarm signal

Channel 2 is pre-configured for the connection of an HST Booster Heater.

 Press the key if a parameter is to be retained. (prior to OK)

Control output (14) 230 V max. 1,25 A:

Possible parameters: C-Pulse, Backflow

• The parameter flashes, switch by pressing

and

Define the output value for channel 1 Possible parameters:

ActInt, ActExt, Power, Setpoint

• The parameter flashes, switch by pressing

and

Menu functions

Level 2

Level 3

Parameter-level

Select the scale for channel 1.

• The value flashes. Set by using the

numeric keypad and confirm by pressing

• The value flashes. Set by using the

numeric keypad and confirm by pressing

Define the output value for channel 2. Possible parameters:

ActInt, ActExt, Power, Setpoint

• The parameter flashes, switch by pressing

and

Select the scale for channel 2.

• The value flashes. Set by using the

numeric keypad and confirm by pressing

• The value flashes. Set by using the

numeric keypad and confirm by pressing

Define the output value for channel 3 Possible parameters:

ActInt, ActExt, Power, Setpoint

• The parameter flashes, switch by pressing

and

Level 2

Level 3

Parameter-level

Select the scale for channel 3.

• The value flashes. Set by using the

numeric keypad and confirm by pressing

• The value flashes. Set by using the

numeric keypad and confirm by pressing

Possible parameters: 0-20 mA, 4-20 mA

• The parameter flashes, switch by pressing

and

Possible parameters: Setpoint, variable, flow rate, pressure

• The parameter flashes, switch by pressing

and

Possible parameters: voltage, current

• The parameter flashes, switch by pressing

and

Menu functions

Level 2

Level 3

Parameter-level

(Parameter Level)

• The value flashes. Set by using the

numeric keypad and confirm by pressing

• The value flashes Set by using the numeric

keypad and confirm by pressing



The value >setpoint< is only indicated.

Possible parameters: inactive, active

• The parameter flashes, switch by pressing

and

Possible parameters: Alarm, Stand By, Alarm+ Stand By

• The parameter flashes, switch by pressing

and

Possible parameters: normal, inverse

• The parameter flashes, switch by pressing

and

9.9.1. Control connector

0 V

0 mA

20 mA

4 mA

10 °C

210 °C

197 °C

202 °C

∆ Τ =

5 K

∆ Τ =

200 K

Control connector (14):

SV-Out >Backflow< or >C-Pulse<

The control output (14) can be adapted to solenoid valves for different tasks.

>Backflow< In the OFF condition, the control output (14) is not

powered. See – Backflow safety device- on page 28

>C-Pulse< The control output (14) can be used to emit a cooling pulse.

For the pulsing period, the output is powered. (only used with Heating Circulators)

9.9.2. Outputs of the connector - REG+E-PROG

Outputs of the connector

1. First define the desired output value for channels 1 to 3:

ActInt internal actual temperature value (bath temperature) ActExt external actual temperature value (external sensor) Power periodic or intermittent heating or cooling Setpoint active setpoint temperature

(setpoint 1, 2, 3/integr. programmer/external programmer)

2. Then select the scale for channels 1 to 3:

Voltage outputs channels 1 and 2 Assign the voltage values of 0 V to the lowest and 10 V to the highest necessary temperature or power rating required as an output value (°C/%). Current output channel 3 Assign the current values 0 mA or 4 mA to the lowest and 20 mA to the highest temperature or power rating required as an output value (°C/%).

3. The current output (channel 3) offers 2 ranges for selection: 0 to 20 mA or 4 to 20 mA

Examples: lowest temperature value: 10 °C highest temperature value 210 °C Fig. shows 200 °C scaled to paper width slope: 50 mV/°C

lowest temperature value: 197 °C highest temperature value: 202 °C Fig. shows 5 °C scaled to paper width slope: 2000 mV/°C

Menu functions

9.9.3. Input of the connector - REG+E-PROG

Menu >Configuration<

2. Menu >Inputs/Outputs<

E-PROG - Input

Setting is necessary if

1. the Setpoint is to be set via an external voltage or current source or programmer For this, in the menu >Configuration<, first set the menu item >Setpoint< to >Eprog<.

2. the heater variable should be controlled via an external control pulse. For this, in the menu >Configuration<, set the menu item > ActVar.< to >Eprog<.

3. the signal of an external flow meter should be registered.



The E-Prog input can only be used either under menu item >Setpoint< or under menu item > Actvar <. If the input is occupied neither by >Setpoint< or > ActVar <, the signal of a flow meter can be connected.

 First set menu >Configuration<, then menu >Inputs/Outputs<.

Example:

• Connect the external voltage or current source or programmer to

the REG+E-PROG socket (12) of the circulator.

Selecting the signal:

The programmer (E-PROG) input of the circulator can be matched to the output signal of the external voltage or current source.

Voltage voltage input Current current input

“L Value” - Setting the LOW value: (See below

First adjust and set the lowest voltage or current on the external voltage or current source (e.g., 0 V or 0 mA). Then after approx. 30 seconds, enter the corresponding temperature value (e.g., 20.00°C).on the circulator by pressing the

appropriate keys on the keypad and press

“H Value” - Setting the HIGH value: (See below

First adjust and set the highest voltage or current on the external voltage or current source (e.g., 10 V or 20 mA). Then after approx. 30 seconds, enter the corresponding temperature value (e.g., 300 °C).on the circulator by pressing the

appropriate keys on the keypad and press

)

to set.

)

to set.

Example:

 Set the external voltage or current source output for the equivalent

of a 50 °C temperature setpoint. The value adjusted and set on the external programmer is displayed in line 4 of the LCD DIALOG-DISPLAY for inspection.

100

200

300

250

150

°C

1 2 3 4 5 6 7 8 9 10 V

2 4 6810 14 18 20 mA

Notice:

will be incorrect.



Important:

working temperature range, see technical specifications.



After returning the LCD display to standard display by pressing the key voltage or current source is displayed in line 1 (Example: Eprog 50.00 °C).

, the temperature value adjusted and set on the external

This EPROG input enables the use of different voltage and current values as program parameters.

• “L Value” - Setting the Low value: (See below

)

1) Adjust and set the lowest desired value on the voltage or current source (Example A: 1 V). Wait approximately 30 seconds.

2) Assign a lower temperature threshold value to this adjusted voltage/current value by pressing the appropriate keys on the keypad of the instrument (Example A: 20 °C) and set by pressing

• “H Value” - Setting the High value: (See below

)

1) Adjust and set the highest desired value on the voltage or current source (Example A: 10 V). Wait approximately 30 seconds.

2) Assign an upper temperature threshold value to this adjusted voltage/current value by pressing the appropriate keys on the keypad of the instrument (Example A: 200 °C) and set by pressing

 Example B in the diagram illustrates that the end point values

are freely selectable (e.g., 8 mA and 16 mA).

Example out of diagram A:

• Adjusting the voltage source for an output of 7.6 V!

Line 5 of the LCD DIALOG-DISPLAY shows the externally set setpoint value. The instrument calculates this value from the slope of the two specified end points (in example A, 7.6 V corresponds to an external



setpoint temperature of 152.0 °C ).

After returning the LCD display to standard display by pressing value is displayed in line 1 (Example: EPROG 152.00 °C).

If this adjustment is not correctly performed at two different points, the setpoint setting

The usable temperature range between > L Value < and > H Value < is limited to the configured working temperature range of the circulator or unit combination. For the

, this

Menu functions

STAND-BY

Activate the standby input:

9.9.4. External Stand-by input

STAND-BY

Ext. StBy (External STAND-BY input)

Stand-By input for external switch-off.

Possible parameters:

inactive - Stand-By input is ignored

active - Stand-By input is active

1. Under menu item >Ext. StBy<, set the parameter to >active<.

2. Connect an external contact “AK” (e.g., for external switch-off) or an alarm contact of the superordinated system.

If the connection between pin 2 and pin 3 is interrupted by opening the contact “AK”, a complete shutdown of the circulating pump and heater is effected, and the unit enters the condition “E OFF”. As long as the contact remains open, line 4 of the LCD DIALOGDISPLAY flashes and displays the message “Stand-By”.

If the contact is reclosed, the instrument returns to the standby state and “ E OFF “ is displayed. Press

to start.

 Additional tips for using the STAND-BY input:

The standby function can be used in conjunction with the AUTOSTART feature.

1. If the Autostart function is NOT turned ON, the standby input is used as described above.

2. If the Autostart function is enabled, the instrument will revert back to the original method of entering the setpoint (i.e., keypad, RS232, analog input, etc.).

Entering the setpoint with the keypad. e.g., As described above, a complete shutdown is accompanied by the “Stand-By” display and the OFF state. The programmable controller starts again when the contact is reclosed. The temperature of the bath fluid changed during the Stand-By state.

Entering the setpoint with the programmer. The display “StandBy” appears. The setpoint value and the time are both held at the current value. The temperature of the bath fluid will be held constant at this temperature. The programmer continues once the contact is reclosed.

Notice: this is not an actual emergency switch-off.

9.9.5. Alarm-output

ALARM

Alarm output (10)

(for external alarm signal)

This socket is a potential-free change-over contact. With the adjustments in the menu >Inputs/Outputs<, all operating conditions can be signaled without having to change the pin assignments.

Meaning of the terms under menu item >Function< :

The circulator is in condition

>StandBy< or >Alarm<

For >Type: normal<, pins 2 and 3 are connected in any case according to the selected >Function<.

For >Type: inverse<, pins 2 and 1 are connected in any case according to the selected >Function<.

Switching capacity max. 30 W/40 VA Switching voltage max. 125 V∼/− Switching current max. 1 A

Troubleshooting guide / Error messages

+

• Excess temperature warning

>Warning< or >Alarm<

• Low temperature warning

>Warning< or >Alarm<

10. Troubleshooting guide / Error messages

Alarm with complete shutdown:

If one of the following failures occur a complete, all-pole shutdown of the heater and circulating pump is effected.

“ lights up and a continuous signal sounds.

„ The code for the cause of alarm is indicated on the VFD COMFORTDISPLAY.

Alarm without shutdown:

The code for the cause of alarm is indicated on the VFD COMFORTDISPLAY. The warning signal sounds in regular intervals. The messages appear every 10 seconds.

• Press the key

• Press to indicate the help text in the LCD DIALOG-DISPLAY when

The circulator is operated without bath fluid, or the liquid level is insufficient. Replenish the bath tank with the bath fluid.

Tube breakage has occurred (insufficient filling level due to excessive bath fluid pumped out). Replace the tubing and replenish the bath tank with the bath fluid.

The float is defect (e. g., because damaged in transit). Repair by authorized JULABO service personnel.

During the self-test after switch-on a short-circuit is registered between pin 2 and pin 4 of the control cable or the control cable is interrupted during operation. Reconnect the cable or eliminate the short-circuit.

to stop the signal

alarm messages appear.

or Excess temperature alarm

Warn-Type: Set to

or Low temperature alarm.

Warn-Type: Set to

The cable of the working temperature sensor is disconnected or shortcircuited.

Defect of the working or excess temperature sensor.

cooling water.

reconnected and the message “CODE 21” will no longer appear.

- compressor switched off and on at short intervals

The working temperature and excess temperature sensors report a temperature difference of more than 35 K.

Error in A/D converter

Excess temperature sensor is defective.

Other errors (I2C-BUS errors)

The safety temperature is below the working temperature setpoint. Set the safety temperature to a higher value.

External control selected, but external Pt100 sensor is not connected or is defective.

Cooling of the condenser is impaired. Clean the air-cooled condenser. For a water-cooled condenser, check the flow rate and temperature of the

The first-stage compressor does not work. After a short cooling interval, the compressor motor will be automatically

The second-stage compressor does not work. Cooling compressor overload protection

The motor of the cooling compressor is equipped with an overload protector, which will be activated in case of excessive temperature in the capsule or excessive current draw.

Causes of motor shut-off:

- poor air circulation

- short distance to walls

- dirt accumulated on condenser

- high ambient temperature

Excess temperature in the first-stage compressor.

Excess temperature in the second-stage compressor.

Troubleshooting guide / Error messages

The early warning system for low level signals a critical fluid level.

1545

4 s

After eliminating the malfunction, turn the mains power switch off and on

Special message “CONFIGURATION ERROR”

Then contact an authorized JULABO service center.

motor stops running.

Warning:

Only use fine fuses with a nominal value as specified.

Manufacturer

Supplier

Type

Order-No.

Schurter

G-fuse link SPT T16A 5x20mm

No. 0001.2516

Wickmann

G-fuse link T1,25A 5x20 mm

No. 19195

Short-circuit in the control cable for the cooling machine during self-test.

Cable of the excess temperature sensor disconnected or short-circuited.

Ext. Pt100 sensor input without signal, but setpoint programming set to external Pt100.

Replenish the bath tank with bath fluid.

again to cancel the alarm state. If the unit cannot be returned to operation, contact an authorized JULABO service center.

The configuration of the circulator does not correspond to its present use.

Press

to automatically perform a one-time modification of the

configuration.

Disturbances that are not indicated.

The electronic pump motor is protected against overload by an electronic current limiter. If the viscosity of the bath fluid is or becomes too high, the

Fuses: The mains fuses on the rear of the unit may easily be replaced as shown at

left. Circulator: Fine fuses (15)– T 1.25 A, 250 V~ , D 5 x 20 mm

Circulator: Fine fuses (16a)– T 16 A, 250 V~ , D5 x 20 mm

Before exchanging the fuses, turn off the mains power switch and disconnect the power plug from the mains socket!

Example:

11. Electrical connections

phones).

Shield Plug

Look on

soldering side.

Pt100

Pin assignment:

The shield of the connecting cable is electrically connected to the plug housing

9 6

RS232/RS485 serial interface

Pin assignments RS485:

Pin 1; 2; 4; 7; 9 Reserved - do not use!

Notice:

Use shielded cables only. The shield of the connecting cable is electrically connected to the plug housing.

The unit ensures safe operation if connecting cables with a maximum length of 3 m are used. The use of longer cables does not affect proper performance of the unit, however external interferences may have a negative impact on safe operation (e.g. cellular

Socket for external Pt100 sensor

ext. Pt100

Pin Signal 1 I+ 2 U+ 3 U 4 I-

and the sensor tube.

This port can be used to connect a computer with an RS232 or RS485 cable for remote control of the circulator.

SERIAL

Pin assignments RS232:

Pin 2 RxD Receive Data Pin 3 TxD Transmit Data Pin 5 0 V Signal GND Pin 7 RTS Request to send Pin 8 CTS Clear to send

Pin 1; 4; 6, 9 Reserved - do not use!

Pin 3 B Pin 5 0 V Signal GND Pin 6 +5 V (max. 50 mA) Pin 8 A

Notice: RS485 serial interface

The max. load current between pin 5 and pin 6 is 50 mA.

Electrical connections

RS232 interface cable

8 980 073

RS232 interface cable 9-pol./9-pol. , 2,5 m

8 900 110

USB interface adapter cable

Pin assignment:

STAND-BY

Stand-by input

Circulator (9-pol) PC (9-pol) Pin 2 RxD ⇔ Pin 3 TxD Pin 3 TxD ⇔ Pin 2 RxD Pin 5 GND ⇔ Pin 5 GND Pin 7 RTS ⇔ Pin 8 CTS Pin 8 CTS ⇔ Pin 7 RTS

Accessories: Order No. Description

/ Control output

The connector may only be used for control of a JULABO refrigerated circulator or JULABO MVS Solenoid valve controller for cooling water.

ALARM

Pin Signal (only with attached JULABO equipment) 1 +24 V (I max. current 25 mA) 2 0 V 3 Alarm relay 4 Reserved - do not use! 5 Cooling pulse

Alarm output

(for external alarm signal)

This potential-free change-over contact is activated in case of an alarm when pins 2 and 3 are connected.

Switching capacity max. 30 W / 40 VA Switching voltage max. 125 V∼/− Switching current max. 1 A

(for external switch-off)

Pin assignment: Pin Signal 1 not connected 2 5 V / DC 3 0 V

6 GND for Progammer 0 V

Programmer input / temperature recorder output

Pin Signal 1 Voltage output Channel 1 0 ... 10 V

REG+E-PROG

2 Voltage output Channel 2 0 ... 10 V 3 GND for outputs 0 V 4 Programmer input EPROG 0 to 10 V / 0 to 20 mA 5 Current output Channel 3 0 to 20 mA / 4 to 20 mA

Control connectors (13, 14)

The control output (13) is not powered in the OFF condition. An external pump motor can be connected. Output voltage: 230 V∼ / max. 1.25 A

The control output (14) can be adapted to solenoid valves for different tasks.

Remote control

9 6

Like all parameters that can be entered through the keypad, interface parameters are stored in the memory even after the circulator is turned off.

If the circulator is put into remote control mode via the configuration level,

computer sends a query.

In remote control mode, the start command and all values to be set must be



To ensure secure data transfer, the time gap between two commands

12. Remote control

12.1. Setup for remote control

1. Check the interface parameters for both interfaces (on the circulator and PC) and make sure they match.

SERIAL

In the >Interface< menu, set the menu item >Type< to >RS232< or >RS485<.

2. In the >Configuration< menu, set the menu item >Setpoint< to >RS232< or >RS485<.

3. Connect both units with an interface cable.

12.2. Communication with a PC or a superordinated data system

the VFD COMFORT-DISPLAY will read “R -OFF-” = REMOTE STOP. The circulator is now operated via the computer. In general, the computer (master) sends commands to the circulator (slave). The circulator sends data (including error messages) only when the

resent by the PC via the interface in case of a power interruption. AUTOSTART is not possible.

A transfer sequence consists of:

• address (RS485 interface only)

• command

• space (⇔; Hex: 20)

• parameter (decimal separation with a period)

• end of file (↵; Hex: 0D)

• The response (data string) after an in command is always followed by a

line feed (LF, Hex: 0A).

The commands are divided into in or out commands.

in commands: retrieve parameters out commands: set parameters

Important times for a command transmission:

should be at least 250 ms. The circulator automatically responds to an IN command with a data string followed by an LF (Line Feed). The next command should be sent only after 10 ms.



The OUT commands are valid only in remote control mode.

⇔

↵

Notice: OUT commands

OUT_MODE_01

Use working temperature >Setpoint2<

OUT_MODE_01

Temperature control using the stored parameters.

setpoint is to be reached.

Voltage 0 V ... 10 V

Current 0 mA ... 20 mA

OUT_MODE_04

Temperature control of internal bath.

OUT_MODE_04

OUT_MODE_05

Examples:

When the RS485 interface is used, the three-digit instrument address precedes each command. (example: address Ad32 = A032)

Command to set the working temperature >Setpoint1< to 55.5 °C

OUT_SP_00 A032_OUT_SP_00

Command to retrieve the working temperature >Setpoint1<

IN_SP_00 A032_IN_SP_00

Response from the circulator:

55.5 A032_55.5

55.5↵

Temperature values can be displayed on the circulator in °C or °F. The settings sent via the interface must also be made in the selected unit according to this setting.

12.3. List of commands

OUT commands: Setting parameters or temperature values.

Command Parameter Response of circulator

0 Use working temperature >Setpoint1<

2 Use working temperature >Setpoint3<

OUT_MODE_02

1 Selftuning “once”

Selftuning “off”.

Single selftuning of the controlled system after the next start.

Selftuning “always” Continual selftuning of the controlled system whenever a new

OUT_MODE_03

0 Set external programmer input to voltage.

1 Set external programmer input to current.

1 External control with Pt100 sensor.

0 Stop the unit = R –OFF-.

Remote control

OUT_MODE_05

OUT_MODE_08

Set the control dynamics - standard

OUT_SP_00

OUT_SP_02

xxx.xx

Set working temperature. “Setpoint 3”

OUT_SP_03

-100 ... +100 [%]

OUT_SP_07

Set the pump pressure stage. (1 ... 4)

OUT_PAR_06

xxx

Xp control parameter of the internal controller. 0.1 ... 99.9

OUT_PAR_07

OUT_PAR_08

OUT_PAR_10

xxx

Proportional share of the cascade controller. 1 ... 99.9

OUT_PAR_11

OUT_PAR_12

OUT_PAR_14

xxx

Minimum internal temperature of the cascade controller.

OUT_PAR_15

OUT_PAR_16

VERSION

None

Version number of the software (V X.xx)

STATUS

Command Parameter Response of circulator

1 Start the unit.

OUT_MODE_08

OUT_SP_01

OUT_SP_04

OUT_SP_06

OUT_PAR_04

0 Set the control dynamics - aperiodic

xxx.xx Set working temperature. “Setpoint 1”

xxx.xx Set working temperature. “Setpoint 2”

xxx.xx Set high temperature warning limit “OverTemp”

xxx.xx Set low temperature warning limit “SubTemp”

xxx.xx

x.x

Set manipulated variable for heater via serial interface

CoSpeed for external control 0 ... 5.0.

xxx Tn control parameter of the internal controller. 3 ... 9999

xxx Tv control parameter of the internal controller. 0 ... 999

OUT_PAR_09

xxx Xp control parameter of the cascade controller. 0.1 ... 99.9

xxx Tn control parameter of the cascade controller. 3 ... 9999

xxx Tv control parameter of the cascade controller. 0 ... 999

OUT_PAR_13

xxx Maximum internal temperature of the cascade controller.

xxx Band limit (upper) 0 ... 200 °C

xxx Band limit (lower) 0 ... 200 °C

OUT_HIL_00

-xxx Set the desired maximum cooling power (0% to 100%). Note: Enter the value with a preceding negative sign! This setting is meaningful only for FP cooling machines.

OUT_HIL_01

xxx Set the desired maximum heating power (10% to 100%).

IN commands: Asking for parameters or temperature values to be displayed.

Command Parameter Response of circulator

none Status message, error message (see page 92)

Command Parameter Response of circulator

IN_PV_00

IN_PV_02

none

Temperature value registered by the external Pt100 sensor.

IN_PV_03

temperature protection

IN_SP_00

IN_SP_01

none

Working temperature “Setpoint 2”

IN_SP_02

IN_SP_03

(REG+E-PROG).

speed after start.

IN_SP_09

none

Value of a pressure sensor connected to the E-Prog input

sensor

IN_PAR_01

IN_PAR_02

temperatures in the internal bath and external system).

Ratio of max. cooling capacity to max. heating capacity

IN_PAR_08

none

Tv control parameter of the internal controller.

IN_PAR_09

IN_PAR_11

none

Tn control parameter of the cascade controller.

IN_PAR_12

none

Tv control parameter of the cascade controller.

controller.

IN_PAR_15

none

Band limit (upper)

IN_PAR_16

none Current bath temperature.

IN_PV_01

IN_PV_04

IN_SP_04

IN_SP_05

IN_SP_06

IN_SP_07

IN_SP_08

none Heating power being used (%).

none Temperature value registered by the safety sensor.

none

Setpoint temperature (“SafeTemp”) of the excess

none Working temperature “Setpoint 1”

none Working temperature “Setpoint 3”

none High temperature warning limit “OverTemp”

none Low temperature warning limit “SubTemp”

none

Setpoint temperature of the external programmer

none Temperature indication in °C or °F

none

1. Adjusted pump stage in the -OFF- condition.

2. Pump stage corresponding to the effective rotational

none Value of a flow rate sensor connected to the E-Prog input

IN_PAR_00

IN_PAR_03

IN_PAR_04

IN_PAR_05

IN_PAR_06

IN_PAR_07

IN_PAR_10

IN_PAR_13

none

Temperature difference between working sensor and safety

none Te - Time constant of the external bath.

none Si - Internal slope

none Ti - Time constant of the internal bath.

none

CoSpeed - Band limit (max. difference between the

Factor pk/ph0:

none Xp control parameter of the internal controller.

none Tn control parameter of the internal controller.

none Xp control parameter of the cascade controller.

none Proportional share of the cascade controller.

none

Adjusted maximum internal temperature of the cascade

IN_PAR_14

none Adjusted minimum internal temperature of the cascade

controller.

none Band limit (lower)

Remote control

2 = Setpoint 3

2 = Selftuning “always”

1 = Current 0 mA to 20 mA

1 = Temperature control with external Pt100 sensor.

1 = start

1 = standard

00 MANUAL STOP

Circulator in „OFF“ state.

01 MANUAL START

Circulator in keypad control mode.

02 REMOTE STOP

Circulator in „r OFF“ state.

03 REMOTE START

Circulator in remote control mode.

Error messages

WARNING

Command Parameter Response of circulator

IN_MODE_01

IN_MODE_02

IN_MODE_03

IN_MODE_04

IN_MODE_05

none Selected setpoint:

0 = Setpoint 1

1 = Setpoint 2

none Selftuning type:

0 = Selftuning “off”

1 = Selftuning “once”

none Type of external programmer input:

0 = Voltage 0 V to 10 V

none

Internal/external temperature control:

0 = Temperature control with internal sensor.

none

Circulator in stop/start condition:

0 = stop

IN_MODE_08

none

Adjusted control dynamics

0 = aperiodic

IN_HIL_00

IN_HIL_01

none Max. cooling power (%).

none Max. heating power (%).

12.4. Status messages

Status messages Description

12.5. Error messages

Description

-01 LOW LEVEL ALARM

-02 REFRIGERATOR ALARM

-03 EXCESS TEMPERATURE

-04 LOW TEMPERATURE WARNING

Low liquid level alarm

Control cable of the refrigerated circulator or MVS solenoid valve controller short-circuited or disconnected.

High temperature warning

Low temperature warning.

Error messages

Description

-08 INVALID COMMAND

Entered value too small.

ALARM

water-cooled condenser.

Low liquid level warning in the internal reservoir.

-05 WORKING SENSOR ALARM

-06 SENSOR DIFFERENCE ALARM

-07 I2C-BUS ERROR

-09 COMMAND NOT ALLOWED IN CURRENT OPERATING MODE

-10 VALUE TOO SMALL

-11 VALUE TOO LARGE

-12 TEMPERATURE MEASUREMENT

-13 WARNING : VALUE EXCEEDS TEMPERATURE LIMITS

-14 EXCESS TEMPERATURE PROTECTOR ALARM

-15 EXTERNAL SENSOR ALARM

Working temperature sensor short-circuited or disconnected.

Sensor difference alarm. Working temperature and safety sensors report a temperature difference of more than 35 K.

Internal error when reading or writing the I2C bus.

Invalid command.

Invalid command in current operating mode.

Entered value too large.

Error in A/D converter.

Value lies outside the adjusted range for the high and low temperature warning limits. But the value is stored.

Excess temperature protector alarm

External control selected, but external Pt100 sensor not connected.

-20 WARNING: CLEAN CONDENSOR OR CHECK COOLING WATER CIRCUIT OF REFRIGERATOR

-21 WARNING: COMPRESSOR STAGE 1 DOES NOT WORK

-22 WARNING: COMPRESSOR STAGE 2 DOES NOT WORK

-23 WARNING: HIGH TEMPERATURE ON COMPRESSOR STAGE 1

-24 WARNING: HIGH TEMPERATURE ON COMPRESSOR STAGE 2

-25 REFRIGERATOR WARNING

-26 WARNING: STAND-BY PLUG IS MISSING

-30 CONFIGURATION ERROR: CONFIRM BY PRESSING <OK> ON CIRCULATOR

Cooling of the condenser is impaired. Clean air-cooled condenser. Check the flow rate and cooling water temperature for a

First-stage compressor does not work.

Second-stage compressor does not work.

Excess temperature at first-stage compressor.

Excess temperature at second-stage compressor.

Error in the cooling machine.

External standby contact is open.

The configuration of the circulator does not correspond to its present use. Press OK to automatically perform a one-time modification of the configuration.

-33 SAFETY SENSOR ALARM

-38 EXTERNAL SENSOR SETPOINT PROGRAMMING ALARM

-40 NIVEAU LEVEL WARNUNG

Excess temperature sensor short-circuited or disconnected.

Ext. Pt100 sensor input without signal and setpoint programming set to external Pt100.

JULABO Service – Online remote diagnosis

The program asks for the port used (COM1, ......)

the correct settings are made.

13. JULABO Service – Online remote diagnosis

JULABO circulators of the HighTech series are equipped with a black box. This box is implemented in the controller and records all significant data for the last 30 minutes. In case of a failure, this data can be read out from the unit by using special software. This software is available as a free download from EasyBlackBox.

• Installation is easy and is performed step by step. Please observe the instructions.

• Data read-out is possible in the conditions “OFF”, “R OFF” or “ALARM”.

• Connect the circulator to the computer using an interface cable.

• Start the EasyBlackBox program.

and the baud rate of the unit. You do not have this information on hand? Simply try it out! The program continues to send the request until

www.julabo.com \

• Data is read out and shown on the monitor divided into the sections >Einstellungen/Settings<, >Alarmspeicher/Alarms stored<, >Blackbox<

 see example

• After pressing >Speichern/Save<, a text file is created. The program suggests a filename >C:\model description and barcode no.<. Modifications are possible.

• E-mail this file to JULABO's service department. JULABO is thus able to provide rapid support.

service.de@julabo.com,

Caution:

performed only by qualified personnel.

ALARM

REG+

E-PROG

STAND-BY

Caution:

personnel only.

14. Installation of electronic module with analog connectors

Always turn off the unit and disconnect the mains cable from the power source before performing any service or maintenance procedures, or before moving the unit. Configuration, installation, maintenance, and repairs on the circulator may be

• Turn off the unit with the mains switch and disconnect the power plug.

• Remove the screws (A) and remove the dummy plate.

• Carefully insert the upper edge (B) into the rear panel from

below, align the electronic module at the top and bottom, and connect the 15-pin connector by applying light pressure.

• Attach the electronic module using the screws (A).

• The circulator is ready for use. It automatically recognizes the

installed electronic module.

15. Cleaning / repairing the unit

• Always turn off the unit and disconnect the mains cable from the power source

before cleaning the unit.

• Prevent humidity from entering into the circulator.

• Electrical connections and any other work must be performed by qualified

In dusty environments, the refrigerating machine’s condenser should be cleaned by vacuuming every 1 to 2 months. The condenser is located behind the venting grid on the front of the unit, which can be taken off by removing the screws.

• Switch off the unit, disconnect mains power cable.

• Remove the venting grid.

• Clean the ribbed condenser with a vacuum cleaner.

• Replace the venting grid.

• Switch on the unit.

Cleaning / repairing the unit

insufficient packing.

JULABO reserves the right to carry out technical modifications with repairs for providing improved performance of a unit.

Cleaning:

For cleaning the bath tank and the immersed parts of the circulator, use low surface tension water (e.g., soap suds). Clean the outside of the unit using a wet cloth and low surface tension water.

The circulator is designed for continuous operation under normal conditions. Periodic maintenance is not required.

The tank should be filled only with a bath fluid recommended by JULABO. To avoid contamination, it is essential to change the bath fluid from time to time.

Repairs Before asking for a service technician or returning a JULABO

instrument for repair, please contact an authorized JULABO service station.

When returning the unit:

• Clean the unit in order to avoid any harm to the service personnel.

• Attach a short fault description.

• During transport the unit has to stand upright. Mark the packing

correspondingly.

• When returning a unit, take care of careful and adequate packing.

• JULABO is not responsible for damages that might occur from

Anhang: HST Zusatzheizer und HSP Zusatzpumpe

Caution:

HST

HSP

19a

19b

Upgradable with supplementary heater - HST

 For control a HST booster heater a electronic module is

required.

Order No. Description

8810012 HST booster heater 6 kW

8900100 Electronic module

Technical specifications on page 99

Upgradable with supplementary pump – HSP

Order No. Description

8810015 HSP booster pump, 30 l/min. –3 bar max.

Top view:

circulator

Technical specifications on page 101

To ensure full operating safety, the HST booster heater and HSP booster pump must be securely fixed to the refrigerated bath using the screws supplied with the unit!

Mounting the optional devices:

On the basic version of the ultra-low refrigerated circulator, the mounting openings for the HSP booster pump and the HST booster heater are closed with stainless steel lids.

• If the optional devices are retrofitted, remove the four screws on each of the stainless steel lids.

• Place the booster pump and/or the booster heater in the respective opening and fix it using the screws supplied with the unit.

Connecting the power cable and the control cable:

• For the circulator basic version see page 21 and page 31

• For the HST booster heater see page 98

• For the HSP booster pump see page 100

HST booster heater

0°C20

100

140

180

220

HST

25a

13a

12a

132

564

25a

HST

13a

12a

Connecting cable to the REG+EPROG socket (12) of the circulator.

the meantime.

Connecting cable to the control connector (13) of the circulator.

Connecting cable for the HST booster heater.

Mains power switch, illuminated

°C

100

140

180

220

(30) at the HST.

16. HST booster heater

Factory setting

13a

25a

 Heating pulse transmission of the HST booster heater.

NOTE: Channel 2 is pre-configured for connecting a HST booster heater (see page 73

). If the HST booster heater is retrofitted, please check the setting for Channel 2 because it might have been configured for a different use in



Power supply for the control electronics of the HST booster heater.

Built-in mains outlet for connection of HST booster heater Not on FPW91-SL - 230 V/3PPE/60 Hz (see page 16)



Power supply for the heater.



Turn the power supply (and the HST booster heater) on and off.

Adjustable excess temperature protection on the HST (see page 99)

 A safety device independent from the circulator. If the actual bath

temperature exceeds the adjusted safety temperature value at the safety potentiometer, the supplementary heater is switched off permanently. There is an optical and audible alarm indication with a permanent signal sound. The error is not reported to the circulator!

Indicator light: Alarm indication (see 31)

Indicator light: Heating



Blinks in time with the heating pulse/booster heater, resp.

Control connector 230 V / max. 1.25 A for HSP booster pump

 If the ultra-low refrigerated circulator is provided with HST booster

heater and HSP booster pump, this connector replaces the unusable control connector (14) on the rear side of the circulator. The function is independent from the switch position of the mains power switch

°C

100

140

180

220

HST

16.1. Excess temperature protection on the HST booster heater

Warning:

The excess temperature protection >SafeTemp< should be set at least 25 °C below the fire point of the bath fluid used. In the event of wrong setting there is a fire hazard! We disclaim all liability for damage caused by wrong settings!

A safety device not depending on the circulator. If the actual bath temperature exceeds the adjusted safety temperature value at the safety potentiometer, the supplementary heater is switched off permanently. There is an optical and audible alarm indication with a permanent signal sound.

Adjust the safety potentiometer to the value for the high temperature protection (see above) by means of a screwdriver and the scale which is printed on. Example above: 50 °C

Recommendation:: When the working temperature in the bath is reached, the safety potentiometer should be turned back slowly to the switched-off point by means of a

Setting range: 0 °C to 220 °C

screwdriver. Afterwards use the scale to adjust the value by 10 °C higher. Press the mains power switch of the HST off and on again to cancel the alarm state.

16.2. Technical specifications - HST booster heater:

Heater capacity kW 6 Mains power connection V / Hz 230/50-60/2phases (See chapter „Mains power connection“ page 15) Current draw (at 230 V) A 16 / Phase Overall dimensions HST (WxDxH) mm 210x200x160

(from assembly level on) Weight kg 5.5 Safety Installations Excess temperature protection adjustable from 0 to 220 °C Alarm indication optical + audible (continuous tone)

HSP booster pump

132

564

13b

Connecting cable to the control connector (13) of the circulator.

inserted blind sieves.

OUT

Important notice:

pump reduces the cooling capacity by approx. 400 W.

17. HSP booster pump

41 Mains cable with plug of the HSP booster pump.

21 22

 Power supply for the control electronics of the HSP booster pump.

Overflow connector

With the installation of the HSP booster pump, the pump capacity of the ultra-low refrigerated circulator increases. Before starting the HSP booster pump, please check the insert capacity of the employed test tubes. For this, see chapter tubing on page 29 in the operating manual.

Cooling capacity: On ultra-low refrigerated circulators, the use of the supplementary

 Only if the upper shaft seal of the pump motor fails, the penetrating

bath fluid is let off at this overflow and thus the destruction of the motor is prevented.

• Connect the HSP booster pump with mains power cable to the mains

socket.

Important:: If an HSP booster pump is used, the pump connections (21, 22) cannot be used any more They have to be closed tightly with union nuts with

Pump connector for external temperature application - M16x1 Feed (OUT), Return (IN)

100

Julabo FPW55-SL, FPW90-SL, FPW52-SL, FP90-SL, FP52-SL Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Operating manual

1. Intended use

1.1. Description

Operator responsibility – Safety recommendations

2.1. Disposal

2.2. Technical specifications

2.3. Mains power connections

2.4. Cooling water connection

Operating instructions

3. Safety notes for the user

3.1. Explanation of safety notes

3.2. Explanation of other notes

3.3. Safety recommendations

4. Operating controls and functional elements

5. Preparations

5.1. Installation

5.3. Temperature application to external systems

5.3.1. Tubing

5.4. Filling / draining

6. Operating procedures

6.1. Power connection

6.2. Switching on / Selecting the language

6.2.1. Switching on the circulator

6.2.2. Switching on the cooling machine

6.3. Start - Stop

7. Setting of temperatures

8. Safety installations, warning functions

8.0.1. Early warning system, low level protection

Menu functions

9.1. Start of a program

9.1.1. Status at the end of a program

9.1.2. Indication after successful start

9.1.3. Editing after Start

9.1.4. Interrupting a program

9.1.6. Termination of a program

Interruption after a power failure

9.2. Program administration, creation

9.3. Setting the pump pressure

9.4. Configuration

9.4.1. Remote control via the serial interface

9.4.2. Keypad control or setpoint setting via the analog input

9.4.3. Autostart

OFF-Mode

9.4.5. ActVar - actuating variable

9.4.6. Setting of clock and date

9.4.7. Language

9.4.8. Unit

9.4.9. Program type

9.4.10. Reset

9.5. Control

9.5.1. Control internal / external

9.5.2. Selftuning

9.5.3. Dynamik intern

9.5.4. CoSpeed - extern

Control parameters – internal/external

9.6. Serial Interface

9.7. ATC Absolute Temperature Calibration, 3-point calibration

9.7.1. ATC Fühler - intern / extern

9.7.2. ATC Status - yes / no

9.7.3. Type 1 -/ 2 -/ 3 point

9.7.4. Example: 3-point calibration for internal control

9.8. Limits

9.8.1. Limits for internal control and external control

9.8.2. Limits for external control

9.9. Analog inputs/outputs

9.9.1. Control connector

9.9.2. Outputs of the connector - REG+E-PROG

9.9.3. Input of the connector - REG+E-PROG

9.9.4. External Stand-by input

9.9.5. Alarm-output

Troubleshooting guide / Error messages

Remote control

Error messages

Status messages Description

JULABO Service – Online remote diagnosis

Anhang: HST Zusatzheizer und HSP Zusatzpumpe