JULABO FP45-HE User Manual

English

www.julabo.de

Operating Manual

Refrigerated and Heating Circulators

FP45-HE

1.951.2462-V2 09/14

JULABO GmbH 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 info@julabo.de

19512462-V2.doc 22.09.14

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 possibl e ap pl i cat ions of our ci r cul at or s . F or optimal utilization o f all funct ions, we rec ommend 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 pr ot ec ti n g against loss fr om c onc ealed dam ag e. T he for m req ui r ed for fil i n g suc h a clai m w i ll be provided by the carrier.

Printed in Germany Changes without prior notification reserved

Important: keep operati ng manual for future use

TABLE OF CONTENTS

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

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

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

2. Operator responsibility – Safety recommendation s ....................................................... 6

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

2.2. Warranty con ditions ................................................................................................. 8

2.3. EC Conformity .......................................................................................................... 9

2.4. Technical specifications ......................................................................................... 11

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

3. Safety no tes for the user ............................................................................................. 13

3.1. Expl anation of safety notes .................................................................................... 13

3.2. Expl anation of other notes ...................................................................................... 13

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

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

5. Preparations ............................................................................................................... 19

5.1. Installation .............................................................................................................. 19

5.2. Bath fluids .............................................................................................................. 19

5.3. Temperature application to external systems ......................................................... 21

5.3.1. Tubing ............................................................................................................... 22

5.4. Filli ng / drai ning ...................................................................................................... 23

6. Operating procedures ................................................................................................. 24

6.1. Power connection ................................................................................................... 24

6.2. Switching on / Start - Stop ...................................................................................... 24

6.2.1. Switchin g on the circul ator .................................................................................

6.2.2. Switchin g on the Coolin g M ac hine ..................................................................... 25

7.1. Using the pre-settings in the

Sett i ng of temperatures ................................................................................. 26

menu ........................................................... 26

7.2. Direct setting of temperatures ................................................................................ 27

Safety installations, warning functions ........................................................... 28

8.1. Excess temperature protection ............................................................................... 28

8.1.1. Early warning system, low level protection ......................................................... 29

8.2. Switch-over from warning to shutdown function...................................................... 30

8.3. Over and Sub temperature warning function .......................................................... 31

Menu func ti ons.............................................................................................. 32

9.1. MENU PROGRAM – START.................................................................................. 33

9.2. MENU PROGRAM – creatio n, adm i ni stration ......................................................... 36

9.3. MENU PUMP - Setting of pump pressure ...............................................................38

9.4. MENU CONFIG - Configur at ion of unit ....................................................................39

9.4.1. Remote control via the serial interface ................................................................40

9.4.2. Keypad control or setpoint setting via the analog input .......................................41

9.4.3. AUTOSTART ......................................................................................................41

9.4.4. OFF-MODE ........................................................................................................42

9.4.5. ACTVAR - actuating variable ..............................................................................42

9.4.6. Setting of clock and date ....................................................................................43

9.4.7. RESET – Factory settings...................................................................................43

9.5. MENU CONTROL – Control char acteristics and parameters...................................43

9.5.1. CONTROL – Control INTERNAL / EXTERNAL ...................................................45

9.5.2. SELFTUNING .....................................................................................................46

9.5.3. Dynamic internal .................................................................................................46

9.5.4. Control parameters– XP-, TN-, TV- INTERNAL ..................................................47

9.5.5. COSPEED - external ..........................................................................................48

9.5.6. Control parameters – XPU-, XP-, TN-, TV- EXTERNAL ......................................48

9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY ...........................................49

9.7. MENU ATC - Absolut Temperature Calibration .......................................................50

9.7.1. ATC SENSOR - INTERNAL / EXTERNAL ..........................................................52

9.7.2. ATC STATUS - YES / NO ...................................................................................52

9.7.3. CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT..............................................................53

9.7.4. Example: 3-point calibration for internal control .................................................54

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

9.8.1. Limits for internal control .....................................................................................57

9.8.2. Limits for external control ....................................................................................57

9.9. MENU IN/OUT – Analog inputs/outputs (Option) .....................................................59

9.9.1. Outputs of the connector - REG+E-PROG ..........................................................62

9.9.2. Input of the c on nector - REG+E-PROG ..............................................................63

9.9.3. ALARM-out put / Stand-by-input ..........................................................................65

10. Troubleshooting guide / error messages ......................................................................67

11. Electrical connections ..................................................................................................70

12. Remote control ............................................................................................................72

12.1. Setup for remote control ..........................................................................................72

12.2. Communication with a PC or a superordinated data system ...................................72

12.3. List of commands ....................................................................................................73

12.4. Status messages ....................................................................................................76

12.5. Error messages .......................................................................................................76

13. Installati o n o f elec tronic module ...................................................................................77

14. JULABO Service – Online remote diagnosis ................................................................78

15. Cleaning / re pair i n g t he unit .........................................................................................79

JULABO cir c ulators are not suita bl e for di r ect t emperature control o f fo ods, semi-

medium (bath fl ui d) .

1x10

TCF

ATC

RS232

Pt100

PUMP

SMART

temperature control parameters. This means full control of the control behavior at all

temperatures to ensure an accurate temperature pattern at the selected spot in the

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

Operating manual

1. Intended use

JULABO circulators have been designed to control the temperature of specific fluids in a bath tank. The units f eat ur e pump connections for tempera t u r e cont r ol of external systems (loo p cir c ui t) .

luxury foo ds an d tobacco, or pharmac eu ti c al an d m edi cal pr o ducts. Direct tem per ature control mea ns unprotected contact of the object wit h 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 men u functions.

 Temperature- and t im e-dependent processes can be s tor e d an d ex ecuted 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 giv e the user acc ess to al l impor tant

ICC

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 of fset is adjusted at three 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 extern al sensor for external t em p er at ur e m easurement and control. Alarm outp ut for external alarm message or control of JULABO refrigerating baths or solenoid valve (cooling water). The electr oni c m od ul e ( option) provides 3 furt h er an al og co nn ec ti o ns ( al ar m in put , standby input, recorder output, programmer input).

 The excess tem p er ature protection c on for m i ng t o I EC 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 th e low l ev el pr otection conform ing to IEC 61010-2-010 causes a complete shutdown of the main functional elements.



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

Operator responsibility – Safety recommendation s

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 specif ies 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 aw ar e of pos si ble 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 th at the mai ns pow er s up pl y has l ow im pedance to avoid any nega t iv e effects on

instruments being operated on the same mains.

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

transmit ting devices (e.g., cel l ul ar ph ones) 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.

 Permiss i ble am bient temperature: max. 40 °C, min. 5 °C.  Permissible relative humidity: 50% (40 °C).  Do not store the uni t in an aggressi ve atmosphere.  Protect the unit from contamination.  Do not expose the unit to sunlight.

JULABO GmbH Eisenbahnstraße 45 77960 Seelbach / Germany

Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 info@julabo.de www.julabo.de

Appropriate operation

Only qualified personnel is authorized to perform configuration, installation, maintenance and repairs of the circulator. Routine op er at ion can also be carried out by untrained perso nn el wh o should however be instr uc t e d by trained per sonnel.

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 ventil ate d ar eas.

Only use recommended materials (bath fluids). O nl y 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 ( 1 + 2) to the front of the unit so they are highly visible:

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

or 2

Mandatory label M018: Colors: bl ue , whi te 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

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 surf ace 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 recommendation s

Valid in EU countries

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

2.1. Disposal

The circul ator 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.

These units contains refrigerants– at thi s time consider ed not to have any negati ve 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.

See the current official journal of the European Union – WEEE directi ve. Directi v e o f the E ur op ea n Par l i am e nt and of the Council on was te el ectrical and electro ni c eq ui pm e nt (WEEE). This direc ti v e r eq ui r es el ec tr i cal a nd electr oni c eq ui pm e nt m arked with a crossedout trash can to be disposed of separately in an environmentally friendly manner. Contact an authorized waste management company in your country.

2.2. Warranty conditi ons

JULABO GmbH warrants its products against defects in material or in workmanship, when used under appropriate conditions and in accordance with appropriate operating instructions

Extension of the warr a nty per i o d – fre e of charge

With the ‘1PLUS warranty’ the user receives a free of charge extension to the warranty of up to 24 months, limited to a maximum of 10 000 worki n g h our s .

To apply for thi s extended warranty the us er m ust r egi s ter th e uni t on the JULA BO w eb si te www.julabo.de, indicating the serial no. The extended warranty will apply from the date of JULABO GmbH’s original invoice.

JULABO GmbH reserves the right to decide the validity of any warranty claim. In case o f fa ul ts ar is i ng either due to faulty materials or workmanship, parts will be repaired or replaced free of charge, or a new replacement unit will be supplied.

Any other c om p ensation claims are excluded from this guar a ntee.

for a period of ONE YEAR.

2.3. EC Conformity

Operator responsibility – Safety recommendation s

2.4. Technical specifications

FP45-HE

Working temperature range

°C

-42 ... 200

Temperature stability

°C

±0.01

Medium: ethanol

0.85 0.7 0.42 0.08

Refrigerant

R-404A

Overall dimensions (WxDxH)

38x58x69

Bath openi n g (WxL)

23x26

Bath depth

Filling volume

liters

18 ... 26

Weight

53 Mains power c o nn ec ti o n 230 V/50 Hz

V/Hz

207-253/50-60

Current dr aw (at 230 V)

Mains power c o nn ec ti o n 230 V/60 Hz

V/ Hz

207-253/50-60

Current dr aw (at 230 V)

HE Temperature selection

digital

via keypad

indication on VF D COMFORT-DISPLAY

remote control via PC

indication on monitor

Temperature indication

VFD COMFORT-DISPLAY

Resolution

°C

0.01

Temperature control

ICC - Intelligent Cascade Control

Heater wattage (at 230 V)

2.0 Heater wattage (at 115 V)

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 12

Ambient temperature

°C

5 … 40

Cooling capacity

All measurements have been carried out at: rated vol ta ge and freque nc y ambient temperature: 20 °C Technical changes without prior notification reserved.

°C

+20 0 -20 -30

ATC3 INT/EXT °C ±3 / ±9

Operator responsibility – Safety recommendation s

Caution:

Electrical connections:

External al ar m devi ce 24-0 V DC / max. 25 mA Computer interface RS232 or RS485 External Pt100 sensor

Optional for HE, SE (Orde r N o. 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 inp ut 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 Polluti on d egr ee 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).

In addition to the safety warnings listed, warnings are posted throughout the operating manual. T hese warnin gs ar e desi g nated by an exclamati o n mar k inside an eq ui l at er al

Read and follow these important instr uctions for averting dangers.

Warning:

Caution:

injuries could result. A warning of possible property damage may also be contained in

Notice:

This icon is used in the operating instructions to indicate flashing values or parameters which have t o be set or c on fir m e d.

Operating instructions

3. Safety notes for the user

3.1. Explanation of safety notes

triangle. “Warning of a dangerous situation (Attention! Please follow the documentation).” The danger is classified using a signal word.

Describes a possibly highly dang er o us sit uation. If these instr uc tions are not followed, serious injury and danger to life could result.

Describes a possibly dangerous situation. If this is not avoided, slight or minor 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

Note! Draws attention to something special.

Important! Indicate s usage tips and other use ful in for m ation.

Safety no tes for the user

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

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

Check the temperature of the bath fluid prior to draining (e.g., by switching the unit

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

during continuous operation. Therefore, exercise particular caution when touching these parts.

3.3. Safety recommendations

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 alway s be easily accessibl e.

• Place the unit on an even surf ace on a base made of nonflammable material.

• Do not stay in the area below the unit.

•

this manual before installing or operating your unit.

• Set the excess temperature safety installation at least 25 °C below th e fir e p oi nt 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 atten ti on to the t h er m al expansion of bath oil dur ing heatin g to av oi d

overflowing of the fluid.

• Prevent water from entering the hot bat h oi l .

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

on for a short m om en t) .

• Use suitable connecting tubing.

• Avoid sharp bends in the tubing, and mai nt ai n a s u ffic i e nt di stance 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 tur n o ff the uni t and di s c onnect 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 em pty the bath be for e moving the un it.

• 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 ar e to be carrie d out only by qualified service personnel.



Caution:

determi ne the method o f dec o nt amination.

ure protection until the

of the float, it can be manually lowered with a screwdriver for

example.

The temper ature 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:

• inflamm a bl e, e as i l y ignited or explosive

• hazardo us to he al th

• enviro nmentally 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 min imum.

• Are all tubes and electrical cables connected and installed? Note: shar p 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 temperat shut-down point (actual temperature).

• Low level pr ot ec ti o n according to IEC 61010-2-010. To check th e function

Operating controls and functional elements

>eprog<*

4. Operating controls and functional elements

Front view Rear view

1a 1b

Mains power s wi tc h, il l um inated for circulator Mains power switch, illuminated for cooling machine

VFD COMFORT-DISPLAY

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

The displ ay is de pe nding on the selected contr ol m ode in th e 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 dis play in line 1 Use the keys

PI Capacity in % - with manipul at ed v ar i a bl e set to > c ontrol<* PS Capacity in % - with manip ul at ed v ar i a bl e set t o > s er i al< * or

to indicate further values in line 3

H Heater capacity in Watts

2.1

2.2

A beep signals the end of setting

U Mains voltage Volts F Flow rate in liters/minute (providing EPROG input set to >Flowrate<)

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

2.3

4.1

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 (°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 / sel ec t s u bm en u f or s etti ng Save set value Save selec t ed parameter

After the ac ti o ns S tar t , Sto p and ch an ge from VFD Dis pl ay t o standard display the key

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

is locked for a short time.

, under >MENU - PUMP<.

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 Correcti on function for param eters or values (pri or to OK)

- icon for „ke ep k ey pr es sed down“.

1. Key: >Up / Down <temperature – increase/decr ease s etpoin t Push key quickly for single steps, Keep key pres sed for fast change.

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

Menu keys

Key: start the menu > warning and safety values<

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

immediately b ac k t o standard display

Operating controls and functional elements

7 8

SERIAL

STAND-BY

REG+E-PROG

16a

17a 18

Built-in mains outlet for connection of circulator

19 20

Adjusta bl e ex ce s s t em p er at ur e pr otection accordi ng to IEC 61 010-2-010

Socket for external measurement and control sensor or external setpoint programming

ext Pt100

Interface RS232: remote control via personal computer Socket: control cable of JULABO refrigerated circulator

or output for al ar m messages

Option: Electronic module Order No. 8 900 100

Alarm output (for external alarm signal)

ALARM

Standby input (for external emergency switch-off)

16b

17b

Programmer input and temperature recorder output

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

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

Drain screw with drain connection

Venting grid, removable

Pump connectors suction pump pressur e pump

5. Preparations

sufficient air ventilation to ensure the room does not warm up

Caution:

corrosion in the bath, even in stainless steel.

5.1. Installation

• Place the uni t on an ev e n s urface on a pad ma de o f non- flammable material.

• The place o f ins tal l a ti o n sh ould be large eno ug h and provide excessively because of the heat the instrument radiates to

the envir onment. (Max. permi s si bl e am bi e nt temperature: 40 °C). With regar d 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. The necessary amount of refrigerant is specified on the type plate. > For 0.52 kg of refrigerant R404A, a room spac e o f 1 m required.

• Keep at least 20 cm of open space on the fron t an d re ar venting gr i d.

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

• Before op er ating the unit after tra ns por t , wait ab ou t one hour after setting it up. This will allow any oil that has accumulated laterall y dur i n g tr ansport to flow back dow n thus e ns ur ing maximum cooling performance of the compressor.

5.2. Bath fluids

Carefully read the safety data sheet of the bath fluid used, particularly with regard to the fire poi nt! If a bath fluid with a fire point of ≤65 °C is used, on l y 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

Preparations

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 poi nt

°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 poi nt

°C

190

230

Fire point

°C

216

274

Color

clear

light brown

No liability for use of other bath fluids!

Recommended bath fluids:

JULABO bath fluids

JULABO

Thermal

See websi te for list of rec om m ended bath fluids.

Thermal

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 no naci di c and nonc or r osi v e ba th fl ui ds.

JULABO assumes no liability for damage caused by the selection of an unsuitable bath liquid. Unsuit able bath flui ds ar e fl ui ds w hic h , e. g. ,

• are highly vis cous (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.

5.3. Temperature application to external systems

with the cap nut.

21 22

Unscrew the M16x1 collar nuts on the pump connectors with a 19 mm (3/4“) wrench and remove the sealing disks. Using

H = Height adjustment

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.

•

Pt100

ext

SERIAL

ALARM

STAND-BY

REG+ E-PROG

T16A

the collar nuts, screw on the tubing connection fittings (for tubing 8 mm or 12 mm in diameter) delivered with the unit

T16A

and tight en fi r mly. (Pressure pump: 22, suction pump: 21)

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

• Attach the t ubings 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.

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 “ Lev el Ada pter.

Accessor y : „D +S“ L ev el Ad apter 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.

Preparations

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

Insulati o n for t ubing 8 mm inner dia.

-50 °C to 100 °C

8930412 1 m

Insulati o n for t ubing 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:

A damaged tubing line may cause hot bath fluid to be pumped out within a short time.

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 turn ed 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 (sui ta bl e up to + 9 0 °C) 8 970 457 Shut-off valve (sui ta bl e up to + 2 00 °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 use d for tem perature applicati on and cooling water supply represents a danger source.

This may result in:

• Burning o f ski n

• Difficul t ies i n br ea thi n g due to hot atmos p here

Safety recommendations

• Employ suitable connecti ng tu bi n g.

• 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).

•

Check the temperature of the bath fluid prior to draining (by switching the unit on

protection.

5.4. Filling / draining

Notice:

• Pay attention to the thermal expa ns i o n o f ba th oi l duri ng 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

for a short moment, for example).

• Store and dispose the used bath fluid according to the laws for env i ronmental

Filling

Take care that no liquid enters the interior of the circulator.

• Recommended maximum filling level with water as bath fluid: 30 mm bel ow t he ta nk 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 th e cir culator and cooling ma c hi n e.

• Hold the venting grid, pull out and remove.

• Slide a short piece of tu be on to t h e dr ai n por t a nd hol d it in to a

pail.

• Unscrew the drain tap (19) and em pty the unit completely.

• Tighten the drain tap.

Operating procedures

Caution:

serves as s a fe di s connecting devic e fr om the li n e an d must

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. Operating procedures

6.1. Power connection

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

• The power supply plug be always easily accessible.

• Never operate equipment with damaged mains power cables.

• Regular l y ch eck th e 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 per form s 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 operati o n) 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 press ed .

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