Julabo F25-HE, F32-HE, F34-HE, FP40-HE, FP50-HE Operating Manual

...

English

www.julabo.com

Operating Manual

Refrigerated and Heating Circulators

air cooled F25-HE

F32-HE F34-HE

FP40-HE FP50-HE

water cooled

FPW50-HE

Translation of the Original Operating Manual

19532460-V4.doc 21.03.16

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.

1.953.2460-V4 03/16 Printed in Germany Changes without prior notification reserved Important: keep operating manual for future use

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. Cooling water connection ....................................................................................... 12

Operating instructions ....................................................................................................... 13

3. Safety notes for the user ............................................................................................. 13

3.1. Explanation of safety notes .................................................................................... 13

3.2. Explanation of other notes ...................................................................................... 13

3.3. Safety recommendations ........................................................................................ 14

4. Operating controls and functional elements ................................................................ 16

5. Preparations ............................................................................................................... 20

5.1. Installation .............................................................................................................. 20

5.2. Bath fluids .............................................................................................................. 21

5.3. Temperature application to external systems ......................................................... 22

5.3.1. Tubing ............................................................................................................... 23

5.4. Filling / draining ...................................................................................................... 24

6. Operating procedures ................................................................................................. 25

6.1. Power connection ................................................................................................... 25

6.2. Switching on / Start - Stop ...................................................................................... 25

6.2.1. Switching on the circulator ................................................................................. 25

6.2.2. Switching on the Cooling Machine ..................................................................... 26

7. Sett i ng of temperatu res ................................................................................. 27

7.1. Using the pre-settings in the menu ........................................................... 27

7.2. Direct setting of temperatures ................................................................................ 28

8. Safety installations, warning functions ........................................................... 29

8.1. Excess temperature protection ............................................................................... 29

8.1.1. Early warning system, low level protection ......................................................... 30

8.2. Switch-over from warning to shutdown function...................................................... 31

8.3. Over and Sub temperature warning function .......................................................... 32

9. Menu functions .............................................................................................. 33

9.1. MENU PROGRAM – START .................................................................................. 34

9.2. MENU PROGRAM – creation, administration ......................................................... 37

9.3. MENU PUMP - Setti ng of pum p pressure............................................................... 39

9.4. MENU CONFIG - Configuration of unit ....................................................................40

9.4.1. Remote control via the serial interface ................................................................41

9.4.2. Keypad control or setpoint setting via the analog input .......................................42

9.4.3. AUTOSTART ......................................................................................................42

9.4.4. OFF-MODE ........................................................................................................43

9.4.5. ACTVAR - actuating variable ..............................................................................43

9.4.6. Setting of clock and date ....................................................................................44

9.4.7. RESET – Factory settings ..................................................................................44

9.5. MENU CONTROL – Control characteristics and parameters ..................................44

9.5.1. CONTROL – Control INTERNAL / EXTERNAL...................................................46

9.5.2. SELFTUNING .....................................................................................................47

9.5.3. Dynamic internal .................................................................................................47

9.5.4. Control parameters– XP-, TN-, TV- INTERNAL ..................................................48

9.5.5. COSPEED - external ..........................................................................................49

9.5.6. Control parameters – XPU-, XP-, TN-, TV- EXTERNAL ......................................49

9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY ...........................................50

9.7. MENU ATC - Absolut Temperature Calibration .......................................................51

9.7.1. ATC SENSOR - INTERNAL / EXTERNAL ..........................................................53

9.7.2. ATC STATUS - YES / NO ...................................................................................53

9.7.3. CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT .............................................................54

9.7.4. Example: 3-point calibration for internal control .................................................55

9.8. MENU LIMITS .........................................................................................................57

9.8.1. Limits for internal control .....................................................................................58

9.8.2. Limit s for external control ....................................................................................58

9.9. MENU IN/OUT – Analog inputs/outputs (Option) .....................................................60

9.9.1. O ut puts of the connector - REG+E-PROG ..........................................................63

9.9.2. I nput of the connector - REG+E-PROG ..............................................................64

9.9.3. ALARM-output / Stand-by-input ..........................................................................66

10. Troubleshooting guide / error messages ......................................................................68

11. Electrical connections ..................................................................................................71

12. Remote control ............................................................................................................73

12.1. Setup for remote control ..........................................................................................73

12.2. Com m unicat ion with a PC or a superordinated data system ...................................73

12.3. List of comman ds ....................................................................................................74

12.4. St at us messages ....................................................................................................77

12.5. Error messages .......................................................................................................77

13. Installation of electronic module ...................................................................................78

14. JULABO Service – Online remote diagnosis ................................................................79

15. Cleaning / repairing the unit .........................................................................................80

16. WARRANTY PROVISIONS .........................................................................................81

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

medium (bath fluid).

1x10

ICC

TCF

ATC

RS232

Pt100

PUMP

SMART

Operating manual

1. Intended use

JULABO circulators have been designed to control the temperature of specific fluids in a bath t ank . 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. Three menu keys facilitate adjusting setpoints, warning and safety functions and menu functions.

 Temperature- and time-dependent processes can be stored and executed using the

integrated programmer.

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

adjust the heat supply to the thermal requirements of the bath.

 The TCF - Temperature Control Features give the user access to all important

temperature control parameters. This means full control of the control behavior at all times and the ability to manually adjust or adapt the controls to the specific application.

 Absolute Temperature Calibration (ATC3) provides high temperature stability at all

points 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 entire 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, progr ammer in put).

 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 VFD COMFORT-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 shutdown 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 applications.

Operator responsibility – Safety recommendations

2. Operator res ponsibility – 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

or 2

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, blac k 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 wast e! 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 m in era l o il or synthetic oil. For disposal, observe the instructions in the safety data sheets.

These units contains refrigerants– at this time considered not to have any negative effects on the ozone layer. However, during the long operating period of the unit, disposal prescriptions may change. So only qualified personnel should take care of disposal.

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

2.2. Technical specifications

Working temperature range

Temperature stability

Medium: ethanol

Refrigerant

R134a

Overall dimensions (WxDxH)

Bath opening (WxL)

Bath depth

Filling volume

Weight

Mains power connection

230 / 50

Current draw (at 23 0 V)

Current draw, CH (at 23 0 V)

A 2 -

Mains power connection

V/ Hz

230 / 50/60

Current draw (at 230 V)

A - 2

Mains power connection

V/ Hz

115 / 60

Current draw (at 115 V)

Mains power connection

V/ Hz

100 / 50/60

Current draw (at 100 V)

F34-HE

Working temperature range

Temperature stability

Medium: ethanol

Refrigerant

R134a

Overall dimensions (WxDxH)

Bath opening (WxL)

Bath depth

Filling volume

Weight

Mains power connection

V/Hz

230 / 50

Current draw (at 230 V)

A 12

Mains power connection

V/ Hz

230 / 60

Current draw (at 230 V)

A 12

Mains power connection 115 V/60 Hz

V/ Hz

115 / 60

Current draw (at 115 V)

A 14

F25-HE F32-HE

°C -28 ... 200 -35 ... 200 °C ±0,01 ±0,01

Cooling capacity

°C kW

+20 0 -20

0.26 0.2 0. 06

+20 0 -20 -30

0.45 0.39 0.15 0.06

cm 23x42x64 31x42x64 cm 12x14 18x12 cm 14 15 liters 3 ... 4,5 5,5 ... 8 kg 32 38

Cooling capacity

°C -30 ... 150 °C ±0.01 °C

+20 0 -20 -30

0.45 0.32 0.14 0.03

cm 38x58x64 cm 24x30 cm 15 liters 14 ... 20 kg 44

Operator responsibility – Safety recommendations

FPW50-HE

Working temperature range

Temperature stability

Medium: ethanol

Refrigerant

R134a

R404A or R507

Overall dimensions (WxDxH)

Bath opening (WxL)

Bath depth

Filling volume

Weight

Mains power connection

V/Hz

230 / 50

Current draw (at 230 V)

Current draw, GB (at 230 V)

A 3 4

Mains power connection

V/ Hz

230 / 60

Current draw (at 230 V)

FP40-HE FP50-HE

°C -40 ... 200 -50 ... 200 °C ±0.01 ±0.01

Cooling capacity

°C kW

+20 0 -20 -30

0.68 0.5 0.32 0.04

cm 36x46x71 42x49x72 cm 23x14 18x12 cm 20 20 liters 9 ... 16 5.5 ... 8 kg 49 57

HE Temperature selection digital

+20 0 -20 -40

0.9 0.8 0.5 0.16

via keypad indication on VFD COMFORT-DISPLAY remote control via PC indication on monitor Temperature indication VFD COMFORT-DISPLAY Resolution °C 0.01 ATC3 INT/EXT °C ±3 / ±9 Temperature control ICC - Intelligent Cascade Control Heater wattage (at 230 V) kW 2,0 Heater wattage (at 115 V) kW 1,0 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

Electrical connections: See page 11 Ambient temperature °C 5 … 40

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

Electrical connections:

Caution:

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

Optional for HE, SE (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).

Operator responsibility – Safety recommendations

pH – value

7,5 to 9,0

Sulfate [SO4 2- ]

< 100 ppm

Hydrocarbonate [HCO3- ] / Sulphate [SO4 2-]

> 1 ppm

Hardness [Ca2+, Mg2+] / [HCO3-]

> 0,5 dH

Alkalinity

60 ppm < [HCO3-] < 300 ppm

Conductivity

< 500 μs / cm

Chloride (CL-)

< 50 ppm

Phosphate (PO43-)

< 2 ppm

Ammonia (NH3)

< 0,5 ppm

Free Chlorine

< 0,5 ppm

Ferri Ions (Fe3+ )

< 0,5 ppm

Mangano Ions (Mn2+)

< 0,05 ppm

Carbon dioxide (CO2)

< 10 ppm

Hydrosulfide (H2S)

< 50 ppm

Content of oxygen

< 0,1 ppm

Algae growth

impermissible

Suspended solids

impermissible

• Avoid putrid water.

Notice: Cooling water circuit

location where the unit is operated.

2.3. Cooling water connection

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

Recommended quality of cooling water:

Notice:

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

• Due to its high content of lime hart water is not suitable for cooling and causes calcination of the heat exchanger.

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

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

• Due to its corrosive characteristics distilled and deionized water is unsuitable and will cause corrosion of the bath. .

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

• Due to its microbiological (bacteria) 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.

Risk of oil leaking from the cooling circuit (compressor) of the recirculating cooler into the cooling water in case of a fault in the circuit! Observe the laws and regulations of the water distribution company valid in the

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

Warning:

Caution: Notice:

Note! Draws attention to something special.

Important! Indicates usage tips and other useful information.

This icon is used in the operating instructions to indicate flashing values or paramet 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 in its surroundings can be damaged.

3.2. Explanation of other notes

ers

Safety notes for the user

Follow the safety instructions to avoid personal injury and property damage. Also, the

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

these parts.

3.3. Safety recommendations

valid safety instructions for workplaces must be followed.

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 nonflammable 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

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

Operating controls and functional elements

FPW50

4. Operating cont rols and functional element s

Front view Rear view

Mains power switch, illuminated for circulator

*refer to >MENU/CONFIG<  >CONFIG / ACTVAR>

2.1

2.2

Mains power switch, illuminated for cooling machine

VFD COMFORT-DISPLAY

Header: Control indicators Line 1: Act ual 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<* PS Capacity in % - with manipulated variable set to >serial<* or >eprog<* H Heater capacity in Watts U Mains voltage Volts F Flow rate in liters/min ute (providing EPROG input set to >Flowrate<)

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

Remote control

to indicate further values in line 3

2.3

4.1

Control indicators in the header: Temperature indication Internal or External actual value Temperature indication in °C (°F not possible on this unit)

Display of set pump pressure stage Four stages, can be set via the key

Navigation keys

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

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

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

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

is locked for a short ti me.

, under >MENU - PUMP<.

Operating controls and functional elements

7 8

Interface RS232: remote control via personal computer

Socket: control cable of JULABO refrigerated circulator

ALARM

Alarm output (for external alarm signal)

STAND-BY

Standby input (for external emergency switch-off)

REG+E-PROG

Programmer input and temperature recorder output

4.2

4.3

4.4

4.5

4.6

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

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

Menu keys

Key: start the menu > warning and safety values<

Key: start the menu >temperature setpoints< Key: display of MENU structure

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

Socket for external measurement and control sensor or external setpoint programming

ext Pt100

SERIAL

or output for alarm messages

Option: Electronic module Order No. 8 900 100

16a

16b

17a

Mains power cable with plug for circulator 18

Built-in mains outlet for connection of circulator

Drain screw with drain connection

Venting grid, removable

21 23

Mains fuses for circulator, T16A Mains fuses for cooling machine, T10A

17b

Mains power cable with plug cooling machine

Pump connectors suction pump pres sure pum p

Selector dial for cooling machine (only F25, F34) Position "1" for operation with HE circulator.

Cooling water OUTLET and INLET.

¾"

Preparations

performance of the compressor.

5. Preparations

5.1. Installation

flammable material.

F34: The circulator fitted with a stainless steel bridge is placed on on the back of the bath tank leaving the bath open on the front side.

• 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 radiates to the environment. (Max. permissible ambient temperature: 40 °C). With regard to a disturbance in the cooling loop (leakage), the guideline EN 378 prescribes a certain room space to be available for each kg of refrigerant.

• Place the unit on an even surface on a pad made of non-

The necessary amount of refrigerant is specified on the type plate. > For 0.25 kg of refrigerant R134a, a room space of 1 m required. > For 0.52 kg of refrigerant R404A, a room space of 1 m required. > For 0.49 kg of refrigerant R507, a room space of 1 m

is req uired.

• Set selector dial for cooling machine in position "1" for operation with HE circulator.

(only F25, F34)

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

• 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

Only water cooled models:

Ensure circulation of cooling water by connecting the tubing to cooling water inlet and outlet on the rear of the refrigerated circulator.

• Cooling water connecter ¾"

• Cooling water see page 12

5.2. Bath fluids

Caution:

corrosion in the bath, even in stainless steel.

Bath fluid

Tempe rature range

soft/decalcified water

5 °C to 80 °C

mixture water/glycol, mixture 1:1

-20°C to 50°C

• No liability for use of other 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:

See website for list of recommended bath fluids.

ATTENTION: The maximum permissible viscosity is 70 mm

Caution:

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

Please contact JULABO before using other than recommended bath fluids. 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.

/s.

Preparations

with the cap nut.

T16A

ext

Pt100

SERIAL

ALARM

REG+ E-PROG

STAND-BY

H = Height adjustment

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.

• 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 tubings, and secure with tube clamps.

• Attach the tubings to the connectors of the external closed

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

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

baths (absolute height).

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

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

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

Order No. Length

Tempe rature 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.

Return flow safety device

If the liquid levels in the circulator bath and the external system are at

5.3.1. Tubing Recommended tubing:

different heights, overflowing must be prevented after the power has been turned off.

Flood hazard!

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

Order No. Description 8 970 456 Shut-off valve (suitable up to +90 °C) 8 970 457 Shut-off valve (suitable up to +200 °C)

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.

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.

• 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

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

the bath, in case the opening is not to be used.

 The circulator provides an early warning system for low level that

may be triggered when changing samples in the bath.

Draining

• Turn off the circulator and cooling machine.

• Hold the venting grid, pull out and remove.

• Slide a short piece of tube onto the drain port (11)

and hold it into a pail.

• Unscrew the drain tap (23) and empty the unit completely.

• Tighten the drain tap.

6. Operating pr oc edure s

Caution:

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

Check to make sure that the line voltage matches the supply voltage specified on the identification plate. Deviations of ±10 % are permissible.

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

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).

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

outlet (18).

• Connect the control cable (9) between the connectors  (9a, 9b).

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

6.2. Switching on / Start - Stop

6.2.1. Switching on the circulator Switching on:

• Turn on the mains power switch (1).

 The unit performs a self-test.

Then the software version (example: V 1.xx) 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).

Start:

• Press

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

Stop:

key.

 Press key.

or Keep

key pressed.

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