Julabo HE-4, SE-6, SE-26, SE-12 Instruction Manual

English

www.julabo.com

Operating Manual

Heating Circulators HE-4 SE-6

SE-12 SE-26

Bridge Mounted Circulator

SE-Z

1.951.2442-V4 03/16

19512442-V4.doc 21.03.16

JULABO GmbH 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 info.de@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 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 ................................................................................................................... 7

2.2. EC Conformity .......................................................................................................... 8

2.3. Warranty conditions ................................................................................................. 9

2.4. Technical specifications ......................................................................................... 10

Operating instructions ....................................................................................................... 12

3. Safety notes for the user ............................................................................................. 12

3.1. Explanation of safety notes .................................................................................... 12

3.2. Explanation of other notes ...................................................................................... 12

HE / SE

3.3. Safety recommendations ........................................................................................ 13

4. Operating controls and functional elements ................................................................ 15

5. Preparations ............................................................................................................... 18

5.1. Installation .............................................................................................................. 18

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

5.3. Temperature application to external systems ......................................................... 20

5.3.1. Tubing ............................................................................................................... 21

5.4. Filling / draining ...................................................................................................... 22

5.5. Countercooling ....................................................................................................... 23

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

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

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

6.2.1. Switching on the circulator ................................................................................. 24

7.1. Using the pre-settings in the

Sett i ng of temperatures ................................................................................. 25

menu ........................................................... 25

7.2. Direct setting of temperatures ................................................................................ 26

Safety installations, warning functions ........................................................... 27

8.1. Excess temperature protection ............................................................................... 27

8.1.1. Early warning system, low level protection ......................................................... 28

8.2. Switch-over from warning to shutdown function...................................................... 29

8.3. Over and Sub temperature warning function .......................................................... 30

Menu functions .............................................................................................. 31

9.1. MENU PROGRAM – START .................................................................................. 32

9.2. MENU PROGRAM – creation, administration ......................................................... 35

9.3. MENU PUMP - Setti ng of pum p pressure ...............................................................37

9.4. MENU CONFIG - Configuration of unit ....................................................................38

9.4.1. Remote control via the serial interface ................................................................39

9.4.2. Keypad control or setpoint setting via the analog input .......................................40

9.4.3. AUTOSTART ......................................................................................................40

9.4.4. OFF-MODE ........................................................................................................41

9.4.5. ACTVAR - actuating variable ..............................................................................41

9.4.6. Setting of clock and date ....................................................................................42

9.4.7. RESET – Factory settings ..................................................................................42

9.5. MENU CONTROL – Control characteristics and parameters ..................................42

9.5.1. CONTROL – Control INTERNAL / EXT ERNAL ...................................................44

9.5.2. SELFTUNING .....................................................................................................45

9.5.3. Dynamic internal .................................................................................................45

9.5.4. Control parameters– XP-, TN-, TV- INTERNAL ..................................................46

9.5.5. COSPEED - external ..........................................................................................47

9.5.6. Control parameters – XPU-, XP-, TN-, TV- EXTERNAL ......................................47

9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY ...........................................48

9.7. MENU ATC - Absolut Temperature Calibration .......................................................49

9.7.1. ATC SENSOR - INTERNAL / EXTERNAL ..........................................................51

9.7.2. ATC STATUS - YES / NO ...................................................................................51

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

9.7.4. Example: 3-point calibration for internal control .................................................53

9.8. MENU LIMITS - Begrenzungen ...............................................................................55

9.8.1. Limits for internal control .....................................................................................56

9.8.2. Limits for external control ....................................................................................56

9.9. MENU IN/OUT – Analog inputs/outputs (Option) .....................................................58

9.9.1. Outputs of the connector - REG+E-PROG ..........................................................61

9.9.2. Input of the connector - REG+E-PROG ..............................................................62

9.9.3. ALARM-output / Stand-by-input ..........................................................................64

10. Troubleshooting guide / error messages ......................................................................66

11. Electr ical connections ..................................................................................................69

12. Remot e control ............................................................................................................71

12.1. Setup for remote control ..........................................................................................71

12.2. Communication with a PC or a superordinated data system ...................................71

12.3. List of commands ....................................................................................................72

12.4. Status messages ....................................................................................................75

12.5. Error messages .......................................................................................................75

13. I nst allat ion of electronic module ...................................................................................76

14. JUL ABO Se r vice – Online remote diagnosis ................................................................77

15. Cleaning / repairing the unit .........................................................................................78

HE / SE

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 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. 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, 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 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 responsibil ity – Safety recommendations

The products of JULABO ensure safe operation when installed, operated, and maintained according to common safet y 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 GmbH Gerhard-Juchheim-Strasse 1 77960 Seelbach / Germany

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

HE / SE

Valid in EU countries

waste is not permitted!

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 (1 + 2) to the front of the unit so they are highly visible:

or 2

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.

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.

Warning label W00: Colors: yello w, b lac k 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 W26: Colors: yellow, black Hot surface warning.

(The label is put on by JULABO)

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.

See the current official journal of the European Union – WEEE directive. Directive of the European Parliament and of the Council on waste electrical and electronic equipment (WEEE). This directive requir es electrical and electronic equipment marked with a crossedout trash can to be disposed of separately in an environmentally friendly manner. Contact an authorized waste management company in your country. Disposal with household waste (unsorted waste) or similar collections of municipal

Operator responsibility – Safety recommendations

2.2. EC Conformity

HE / SE

2.3. Warranty conditions

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

for a period of ONE YEAR.

Extension of the warranty period – free 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 working hours.

To apply for this extended warranty the user must register the unit on the JULABO web site www.julabo.com, 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 of faults arising 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 compensation claims are excluded from this guarantee.

Operator responsibility – Safety recommendations

Heating circulators

Working temperature range

°C

20 … 250

20 ... 300

Temperature stability

°C

±0.01

Bath opening (WxL)

Bath depth

Filling volume

liters

Overall dimensions (WxDxH)

21x42x40

21x43x44

30x43x47

36x61x47

Weight

Bridge mounted circulator

SE-Z

Working temperature range

°C

20 ... 300

Temperature stability

°C

±0.01

Immersion depth max./min.

18/9

Overall dimensions (WxDxH)

32x17x33

Weight

7 HE

Mains power connection

V/Hz

208-230 / 50/60

Current draw (at 208 V / 230 V)

8 / 9

13 / 14

Mains power connection

V/ Hz

100-115 / 50/60

Current draw (at 100 V / 115 V)

9 / 10

Temperature selection

digital

via keypad

indication on VFD 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

3,0

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 lit ers

bar

0.7

Max. suction at 0 liters

bar

0.4

Electrical connections:

See page 11

Ambient temperature

°C

5 … 40

5 ... 40

2.4. Technical specifications

HE-4 SE-6 SE-12 SE-26

13x15 13x15 22x15 22x30

3 ... 4,5 4,5 ... 6 7,5 ... 12 18 ... 26

11 13,5 14,0 27,0

All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C bath fluid: water operating temperature: 70 °C Technical changes without prior notification reserved.

ATC3 INT/EXT °C ±3 / ±9 ±3 / ±9

HE / SE

Caution:

Electrical connections:

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 floa t 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).

Operating instructions

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

Read and follow these important instructions for averting dangers.

Warning:

Caution: Notice:

Note! Draws attention to s

Important! Indicates usage tips and other useful information.

This icon is used in the operating instructions to indicate flashing values or parameters 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.

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

omething special.

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

• O nly 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 t he unit on an even surface on a base made of nonflammable material.

• Do not stay in the area below the unit.

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

this manual before installing or operating your unit.

• Set t he excess temperature safety installation at least 25 °C below the fire point of the bath fluid.

• O bs er ve the limited working temperature range when using plastic bath tanks.

• Never operat e 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.

• Pr event 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 suit able connecting tubing.

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

surrounding walls.

• Make sur e that the tubing is securely attached.

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

• Never operat e damaged or leaking units.

• Al ways tur n off the unit and disconnect the mains cable from the power source

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

• Al ways tur n off the unit and disconnect the mains cable from the power source before cleaning the unit.

• Al ways empt y the bath before moving the unit.

• Transport the unit with care.

• Sudden j olt s or drops may cause damage in the interior of the unit.

• O bs er ve all warning labels.

• Never rem ove warning labels.

• Never operat e units with damaged mains power cables.

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

HE / SE

 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.

With a screwdriver turn back the adjustable excess temperature protection until the

example.

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

• environment ally 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.

• Ar e 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. 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

4. Operating controls and f unc t ional elements

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

Front view Rear view

HE / SE

Mains power switch, illuminated

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<* PS Capacity in % - with manipulated variable set to >serial<* or >eprog<* H Heater capacity in Watts U Mains voltage Volts F Flo w rate in liters/minute (providing EPROG input set to >Flowrate<)

to indicate further values in line 3

Operating controls and functional elements

2.1

Remote control

2.2

A beep signals the end of setting

2.3

4.1

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

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

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 s hort 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 Correction function for parameters or values (prior to OK)

- 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

immediately back to standard display

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

HE / SE

Socket for external measurement and control sensor 8

SERIAL

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

Mains fuses, T16A

Cooling coil connectors

or external setpoint programming

ext Pt100

or output for alarm messages

Option: Electronic module Order No. 8 900 100

Mains power cable with plug

Pump connectors suction pump pressure pump

Preparations

Heating circulators

Bridge mounted circulator SE-Z

5. Preparations

5.1. Installation

• Place t he unit on an even surface on a base made of nonflammable material.

• Place the bath tank in an upright

position.

1. Remove screw on both sides (transportation safety device in the middle).

2. Extend the bridge and place it on the bath tank. The bridge is extendable from 310 mm to 660 mm.

3. Adjust the bridge to the width of the bath tank.

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

JULABO Description

Thermal G

Thermal M

Thermal HS

Order Number

10 liters

8 940 124

8 940 100

8 940 102

5 liters

8 940 125

8 940 101

8 940 103

Tempe rature range

°C

-30 ... 80

40 ... 170

20 ...250

Flash point

°C

284

270

Fire point

°C

306

>360

Color

light yellow

clear

light brown

JULABO Description

Thermal H10

Thermal H20S

Thermal H200

Order Number

10 liters

8 940 114

8 940 108

8 940 134

5 liters

8 940 115

8 940 109

8 940 135

Tempe rature range

°C

-20 ... 180

0 ... 220

60 ...200

Flash point

°C

190

230

292

Fire point

°C

216

274

334

Color

clear

light brown

clear

(much higher than recommended at the respective working temperature)

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

HE / SE

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.,

• ar e highly viscous

/s.

Preparations

• No l i abilit y for use of other bath fluids!

with the cap nut.

T16A

ext

Pt100

SERIAL

ALARM

REG+ E-PROG

STAND-BY

21 22

H = Height adjustment

• have a low viscosity and have creep characteristics

• have corr osive characteristics or

• tend to crack.

5.3. Temperature applicat i on 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 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“ Level Adapter.

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

Important:

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

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

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.

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:

HE / SE

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:

• Bur ning 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 r im

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

 After f illing, 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

(description – please refer to page 28) that may be triggered when changing samples in the bath.

Draining

• Turn the unit off with the mains switch.

• Place the heating circulator near the rim of the table. Use a

suitable vessel as recipient for the bath fluid.

• Unscrew the drain plug on the front of the bath tank to drain the bath.

5.5. Countercooling

location where the unit is operated.

T16A

ext

Pt100

SERIAL

ALARM

REG+ E-PROG

STAND-BY

FD200 Flow-through cooler

Caution:

Securely attach all tubing to prevent slipping.

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

HE / SE

For applications near the ambient temperature, the cooling coil (20) must be connected to the water mains.

• Using tubing, connect the cooling coil to the tap water supply,

and lead the tap water in a sink through the return connector.

 A specific water flow rate of 750 ml/minute (15 °C) is sufficient

to compensate for the characteristic temperature.

 For applications near ambient temperature (20 °C), the cooling

water temperature should at least be 5 °C below the working temperature.



Controlled countercooling Use the MVS solenoid valve controller (26) and a solenoid valve (27) for controlled countercooling to reduce tap water consumption.

 The circulator recognizes the MVS

controller via the socket automatically adjusts the necesssary parameters.

Accessory: Order No. Description

9 790 000 MVS controller for cooling water 8 980 700 Solenoid valve for cooling water

Order No. 9 655 825 The FD200 is suitable as cooling device for liquids in closed circuits

(loops). This unit is integrated in the return flow circuit from the external system connected to a circulator, and continuously withdraws heat from the liquid.

(10) and

Operating procedures

Caution:

er supply plug serves as safe disconnecting device from the line and 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

• O nly connect the unit to a power socket with earthing contact (PE – protective

6.2. Switching on / Start - Stop

6.2.1. Switching on the circulator

earth)!

• The pow be always easily accessible.

• Never operat e equipment with damaged mains power cables.

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

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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