JULABO MA User Manual

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English

Operating Manual

Heating Immersion Circulator

1.951.0332-V2 06/13

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

19510332-V2.doc 12.07.13

Operating manual

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

Temperature control devices for research and industry are developed, 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 .............................................................................................................. 8

2.2. EC Conformity .................................................................................................... 9

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

3.3. Safety recommendations .................................................................................. 12

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

4.1. Circulator .......................................................................................................... 15

5. Preparations ......................................................................................................... 17

5.1. Installation ........................................................................................................ 17

5.2. Bath fluids ......................................................................................................... 18

5.3. Temperature application to external systems .................................................. 19

5.3.1. Pump set .................................................................................................. 19

5.3.2. Tubing ...................................................................................................... 20

5.4. Countercooling ................................................................................................. 21

6. Operating procedures .......................................................................................... 22

6.1. Power connection ............................................................................................. 22

6.2. Switching on / Start – Stop ............................................................................... 22

6.2.1. Switching on the circulator ....................................................................... 22

7. Setting of temperatures ............................................................................ 23

7.1. 1-setpoint mode / Direct setting of temperatures ............................................. 23

7.2. Using the pre-setting in the menu ........................................................ 23

Safety installations, warning functions ..................................................... 25

8.1. Excess temperature protection ........................................................................ 25

Operating manual

8.1.1. Early warning system, low level protection .............................................. 26

8.2. Switch-over from warning to shutdown function .............................................. 27

8.3. Over and Sub temperature warning function ................................................... 28

9. Menu functions ......................................................................................... 29

9.1. MENU PUMP – Setting of pump pressure ....................................................... 30

9.2. MENU Configuration ........................................................................................ 31

9.2.1. Configuration of the mode of the key ........................................... 32

9.2.2. Remote control: activate – deactivate ...................................................... 32

9.2.3. Automatic / non-automatic start mode ..................................................... 32

9.2.4. Reset - Factory setting ............................................................................. 33

9.3. MENU Control parameters – Xp, Tv, Tn .......................................................... 33

9.4. MENU SERIAL - BAUDRATE, PARITY, HANDSHAKE .................................. 35

9.5. MENU ATC - Absolut Temperature Calibration ............................................... 36

9.5.1. ATC STATUS - YES / NO ........................................................................ 38

9.5.2. ATC - TYPE: 1 -/ 2 -/ 3 POINT ................................................................. 38

9.5.3. Example: 3-point calibration for internal control ...................................... 39

9.6. MENU LIMITS .................................................................................................. 41

10. Troubleshooting guide / error messages ............................................................. 42

11. Electrical connections .......................................................................................... 44

12. Remote control ..................................................................................................... 45

12.1. Setup for remote control .............................................................................. 45

12.2. Communication with a PC or a superordinated data system ....................... 45

12.3. List of commands ......................................................................................... 46

12.4. Status messages ......................................................................................... 47

12.5. Error messages ............................................................................................ 47

13. JULABO Service – Online remote diagnosis ....................................................... 49

14. Cleaning / repairing the unit ................................................................................. 50

Operating manual

1. Intended use

JULABO circulators have been designed to control the temperature of specific fluids in a bath tank.

JULABO circulators are not suitable for direct temperature control of foods, semi-luxury foods and tobacco, or pharmaceutical and medical products. Direct temperature control means unprotected contact of the object with the bath medium (bath fluid).

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 MULTI-DISPLAY (LED). Three menu keys facilitate adjusting setpoints, warning and safety functions and menu functions.

PID2

ATC

RS232

SMART

PUMP

 The PID temperature control adapts the heat supplied to the thermal

requirements of the bath.

 Absolute Temperature Calibration (ATC3) provides a high temperature

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

 Electrical connections:

The serial interface RS232 allows modern process technology without additional interface. Alarm output for external alarm message or control of JULABO refrigerating baths or solenoid valve (cooling water).

 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 MULTI-DISPLAY (LED).

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

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

 The pump capacity (electronically adjustable via the motor speed) enables to

adapt to varying conditions for internal and external temperature applications.

 The circulator conforms to the relevant requirements specified by European

guidelines.

Operator responsibility – Safety recommendations

2. Operator responsibility – Safety recommendations

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

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

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

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

and understand the safety information and operating instructions.

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

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

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

Contact

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

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.

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

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

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

Semi S1-0701 Table A1-2 #9 Carefully read the user information prior to beginning operation. Scope: USA, NAFTA

Warning label W26: Colors: yellow, black Hot surface warning.

(The label is put on by JULABO)

Operator responsibility – Safety recommendations

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.

Valid in EU countries 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 requires electrical and electronic equipment marked with a crossed-out 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 waste is not permitted!

2.2. EC Conformity

The products described in the operating instructions conform to the requirements of the following European guidelines:

Directive of the European Parliament and of the Council on the

approximation of the laws of the Member States relating to machinery.

EMC guideline with respect to legal harmonization of the member countries

concerning electromagnetic compatibility.

JULABO GmbH Eisenbahnstr. 45 77960 Seelbach / Germany

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.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 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

2.4. Technical specifications Heating Immersion Circulator MA

Working temperature range Temperature stability Overall dimensions (WxDxH) cm 13x15x33 Usable bath depth cm from 8 to 14.5 Weight kg 4.0

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

°C 20 ... 200 °C ±0,01

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

Current draw (at 208V) A 8 Current draw (at 230V) A 9 Mains power connection

100V - 115V; 50Hz - 60 Hz Current draw (at 100V) A 8 Current draw (at 115V) A 9

Temperature selection digital via keypad indication on MULTI-DISPLAY(LED) remote control via personal computer indication on monitor Temperature indication MULTI-DISPLAY (LED) Resolution (-9.99 …. +99.99 = 0.01) °C 0.01 / 0.1 Absolute Temperature Calibration °C ±3 Temperature control PID

V; Hz

187 - 253; 50 - 60 (perm. range)

90 - 127; 50 - 60 (perm. range)

Heater wattage (at 230 V) kW 2,0 Heater wattage (at 115V) kW 1,0 Electronically adj. pump capacity stages 1 ... 4 Flow rate max.at 0 bar l/min 11 ... 16 Pressure max. max. at 0 l bar 0.23 ... 0.45

Electrical connections: External alarm device Vdc/mA 24-0 / max. 25 Computer interface RS232

Ambient temperature °C 5 ... 40

Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 0 °C ... 230 °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 only indoor. Altitude up to 2000 m - normal zero. Ambient temperature: +5 ... +40 °C

Air humidity: Max. rel. humidity 80 % for temperatures up to +31 °C, linear decrease down to 50 % relative humidity at a temperature of +40 °C

Max. mains 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

Caution:

The unit is not for use in explosive environment

Standards for interference resistance 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

3. Safety notes for the user

3.1. Explanation of safety notes

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

Warning:

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

Caution:

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.

Notice:

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.

3.3. Safety recommendations

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

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.

Also, the valid safety instructions for workplaces must be followed.

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

protective earth)!

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

and must always be easily accessible.

 Place the unit on an even surface on a base made of 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 these parts.

Caution:

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

Safety notes for the user

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 determine the method of decontamination.

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 example.

4. Operating controls and functional elements

4.1. Circulator

Front view Rear view

Mains power switch, illuminated

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 time.

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“.

Operating controls and functional elements

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

5 6 7

11 12

Menu keys

Key: start the menu > warning and safety values< Key: start the menu >temperature setpoints< Key: display of MENU structure

MULTI-DISPLAY (LED) temperature indication, menu indication

Control indicator –Heating Control indicator – Cooling (without function)

Navigation aids

Flashing segments show the position within the structure of the menu. Item „P“ flashes simultaneously in the submenu.

16 18 20

RS232

Control indicator – Alarm

Adjustable excess temperature protection according to IEC 610102-010

Socket: control cable of JULABO refrigerated circulator or output for alarm messages

Interface RS232: remote control via personal computer Mains circuit breakers (resettable) 15 A

Mains power cable with plug

5. Preparations

5.1. Installation

Caution:

Securely fix the immersion circulator. The heater may not be in contact with the wall of the bath tank. Keep a distance of at least 15 mm. Units not adequately fixed may drop into the bath tank.

Danger of electric shock!

First pull out the power plug to disconnect the unit from the power supply net. Then take the immersion circulator out of the bath tank. Make a service technician check the instrument before it is used again.

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

flammable material.

 The heating immersion circulator is mounted using a bath

attachment clamp (21) designed for bath wall thicknesses up to 26 mm.

 Use the two sleeves (22) supplied with the unit to reduce

the immersion depth from 165 mm to 145 mm (see drawing).

 For use with glass vessels an upright stand rod,

available as optional accessory (order no. 8 970 022) may be attached.

Preparations

5.2. Bath fluids

Caution:

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

corrosion in the bath, even in stainless steel.

Recommended bath fluids:

Bath fluid Temperature range soft/decalcified water 5 °C to 80 °C

JULABO bath fluids

JULABO Description

Thermal

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 Temperature 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 Temperature 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

See website for list of recommended bath fluids.

ATTENTION: The maximum permissible viscosity is 50 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.

 No liability for use of other bath fluids!

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 (24a) with the cap nut.

5.3.1. Pump set

24b

24a

The circulator is used for temperature application to external, closed systems (loop circuit).

Mounting the pump set:

 Remove the bath attachment clamp (21).  Screw the pump set to the circulator, and then fix the

bath attachment clamp to the pump set.

 Slide the short piece of tubing supplied with the pump

set onto the short pump nozzle and the pump connector (23).

 Thus the total immersion depth is reduced to 145 mm.  Adjusting the pump for external bath circulation see

example D - MENU PUMP.

Connecting an external system:  Unscrew the collar nuts from the pump connector

(24a).

 Slide the tubing onto the pump connector for feed

(24a) and return flow (24b) and secure with hose clamps

Accessories Order No. Description

8 970 140 Pump set

Preparations

5.3.2. Tubing Recommended tubing:

Order No. Length Temperature range 8 930 008 1 m CR

tubing 8 mm inner dia. -20 °C to 120 °C 8 930 010 1 m CR® tubing 10 mm inner dia. -20 °C to 120 °C 8 930 108 1 m Viton tubing 8 mm inner dia. -50 °C to 200 °C 8 930 110 1 m Viton tubing 10 mm inner dia. -50 °C to 200 °C 8 930 410 1 m Insulation for tubing 8 mm or

-50 °C to 100 °C

10 mm inner dia.

8 970 480 2 tubing clamps. size 1, tubing 8 mm inner dia. 8 970 481 2 tubing clamps. size 2, tubing 10 or 12 mm inner dia.

8 930 209 0.5 m 8 930 210 1.0 m

Metal tubing, triple insulated, M16x1 *

-100 °C to +350 °C

8 930 211 1.5 m 8 930 214 3.0 m 8 930 220 0.5 m

Metal tubing, insulated, M16x1 * -50 °C to +200 °C 8 930 221 1.0 m 8 930 222 1.5 m 8 930 223 3.0 m

*) Adapter for metal tubing M10x1 on M16x1 Order No. 8 970 444

Warning: Tubing:

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).  Preventive maintenance: Replace the tubing from time to time.

5.4. Countercooling

Notice:

Securely attach all tubing to prevent slipping. Observe the laws and regulations of the water distribution company valid in the

location where the unit is operated.

25b

25a

For applications near the ambient temperature, the cooling coil (order no. 8 970 105) must be connected to the water mains.

Mounting the cooling coil:

 Remove the bath attachment clamp (21).  Screw the cooling coil to the circulator, and then fix

the bath attachment clamp to the cooling coil.

 Thus the total immersion depth is reduced to 145 mm. Using tubing, connect the cooling coil (25a) to the tap

water supply, and lead the tap water in a sink through the return connector (25b).

 A specific water flow rate of 45 ml/minute is sufficient

to compensate for the characteristic temperature.

Operating procedures

6. Operating procedures

6.1. Power connection

Caution:

 Only connect the unit to a power socket with earthing contact (PE –

6.2. Switching on / Start – Stop

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).

 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.

6.2.1. Switching on the circulator

Switching on:

 Turn on the mains power switch (1).

 The unit performs a self-test. All segments of the 4-digit MULTI-

DISPLAY (LED) and all indicator lights will illuminate. Then the software version (example: tt 2, V1.12, b004)) 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 LEDDISPLAY. The circulating pump starts with a slight delay.

Stop:

key.

 Press

or Keep

The LED -DISPLAY indicates the message "OFF".

key.

key pressed.

7. Setting of temperatures

The function of the key is configurable.

1. If the key is pressed, normally only one adjustable working temperature is displayed (factory setting).

2. Using the Menu Configuration which is started by pressing the

key a menu with three pre-set setpoints can be

assigned to the key.

 Press key if a value is to be retained.

7.1. 1-setpoint mode / Direct setting of temperatures

The circulator uses the setpoint of t1 or t2 or t3 for temperature control.

The indicated setpoint temperature can be changed directly any time.

Example: change 25.00 °C to 50.00 °C

1. By pressing the key the circulator switches to the

active >Setpoint< in the example on the left > t1 25.00°C<. The integer digits flash (example: <25>).

2. Change the value by pressing the keys and to

50.00 °C and confirm by pressing the key . The decimal digits flash and can be adjusted if desired.

Confirm once more by pressing the key. The end of the adjustment is signalled by the flashing message >t1<

 If the „Up / Down“ keys are pressed immediately

instead of pressing the key temperature setting.

 The circulator uses the new working temperature value for

temperature control.

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

7.2. Using the pre-setting in the menu

Factory setting:

25 °C

37 °C

70 °C

Press the 3 different working temperatures can be adjusted. Their values are freely adjustable with the working temperature range.

Important:

Prior to the adjustment switch-over to the 3-temperature mode has to be effected in the menu configuration.

key to call up the menu for temperature setting.

this is called direct

Setting of temperatures



Refer to page 32 for switch-over to 3-temperature-mode

CFG = CONFIGURATION 3SP = 3 SETPOINT

Setting of working temperature in the menu

1. Press the key

2. Select SETPOINT >t 1< or >t 2< or >t 3< using the key or .

3. Confirm by pressing the key.

 The circulator uses the new working temperature value for

temperature control.

Example: setting / adjustment of of pre-settings of "t 3"

1. Press the key. The parameter >tx< flashes.

2. Select the setpoint >t3< by pressing or .

3. Keep the key pressed until the integer digits flash .

(example: <70>)

4. Change the value by pressing and to 85.00 °C and confirm by pressing the key.

The decimal digits flash Confirm once more by pressing the

Example on the left: SETPOINT >t3< / 85.00. The end of the adjustment is signaled by the flashing message >t3<

. The value >tx< flashes

and can be adjusted if desired.

key.

 If the active setpoint (SETPNT) is changed, the new value is

immediately used for the control of the working temperature. The heater control indicator flashes.

 If the other two setpoints (not activated for control) are changed

the MENU has to be left by pressing the key after the decimal digits have been confirmed

Notice: Refer to chapter

9.6. MENU LIMITS

8.1. Excess temperature protection

Safety installations, warning functions

Check the safety installations at least twice a year! Refer to ( page 14)

Settings for the excess temperature protection > tSA< and for the warning functions for high > tHi< and low > tLo< temperature are made in a menu which is called up by pressing the key .

Menu item > Aty (ALARM-TYPE)< allows choosing between a warning and an alarm cut-off for the menu items > tHi < and >tLo<.

This excess temperature protection is independent of the control circuit. When activated heater and circulating pump are completely shut down. The alarm is indicated by optical and audible signals (continuous tone) and the error message "ALARM-CODE 14" appears on the MULTI-DISPLAY (LED)

Setting range: 20 °C ... 230 °C

 Rough setting can be effected by using the temperature scale.

Exact setting:

1. Press the key to display menu > tSA <.

2. Press the key and the set shutdown value is indicated.

Set the new shutdown value within 30 seconds using a screwdriver. The value is indicated on the MULTI-DISPLAY (LED) Example: >tSA< / 100 °C

Recommendation: Set the excess temperature protection at 5 °C to 10 °C above the working temperature setpoint.

Warning:

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

Safety installations, warning functions

8.1.1. Early warning system, low level protection

Warning:

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

This low level protection is independent of the control circuit and is divided in two sections.

(patented)

1. Switch in stage 1 recognizes a defined

fluid level .

An audible warning (interval tone) sounds and on the MULTI-DISPLAY (LED) the message "E 40" appears.

Refill bath fluid!

2. Switch in stage 2 recognizes a low fluid level .

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

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

3. Float

4. Circulating pump

5. Heater

8.2. Switch-over from warning to shutdown function

If a shutdown of functional elements (e.g. heater, circulating pump) is

Factory setting: >0 = WARNING<

required when the limit values are exceeded or undercut the circulator can be changed over from warning function >WARNING< to shutdown function >ALARM<.

1. Press the key .

2. Select the menu >Aty (ALARM-TYPE)< by pressing the key.

3. Press the key and the set parameter will flash . (Example: 0)

4. Change the parameter by pressing the key and confirm by pressing the key.

or press the key if the parameter is to retained.

 Setting >0 = WARNING<

A mere warning function with optical and audible warning signal (interval tone) A message appears on the MULTI-DISPLAY (LED):

or OVERTMP SUBTEMP

 Setting >1 = ALARM<

Temperature limit with shutdown of heater and circulating pump. An audible alarm sounds (continuous tone) and a message appears on the MULTI-DISPLAY (LED):

or OVERTMP SUBTEMP

Safety installations, warning functions

8.3. Over and Sub temperature warning function

Factory settings:

Over temperature t High 205 °C

Sub temperature t Low -55 °C

If the observance of a working temperature value >t 3< has to be supervised for a sensitive temperature application, then set over and sub temperature warning values. In the example below the setpoint >t 3< 85 °C is surrounded by the values >t High< 87 °C and >t Low< 83 °C. The electronics immediately register if the actual temperature breaches one of the set limit values. The resulting reaction is defined in the menu item >Aty (ALARMTYPE)< refer to (page 27).

1. Press the key .

2. By pressing the or or > tLow <.

3. Press the key. The integer digits flash.

4. Change the values to 87. °C and/or 83. °C by pressing the

and

The decimal digits flash and can be adjusted if desired. Confirm once more by pressing the

See above examples.

key and confirm with the key.

key select the menu > tHigh <

key.

 The warning functions are only activated if the actual bath

temperature remains within the set limit values for 3 seconds after switch-on.

Recommendation:

Set the over temperature warning value > t High < 5 °C to 10 °C above the working temperature setpoint.

Set the sub temperature warning value > t Low < 5 °C to 10 °C below the working temperature setpoint.

9. Menu functions



 Menu level 1

 



The term „Menu functions“ refers to settings such as

>Pu< - Electronically adjustable pump capacity page 30 >CFG< - Configuration of the unit page 31

>3SP< - 3-setpoint mode >rt< - REMOTE – on / off (remote control via RS232) >Aut < – AUTOSTART on / off >rST< - RESET – factory settings

PID Control parameters page 33

Control parameter XP Control parameter Tn Control parameter Tv

Adjustable interface parameters page 35

 ATC



>br< - Baudrate >Pty< - Parity >HS< - Handshake

 ATC - Absolute Temperature Calibration page 35 >Sta< - ATC status

>tyP< - Type >1. point<, >2. point < or >3. point < calibration

2 values per calibration point

ttx = Defined temperature value of the calibration point. This value is automatically stored with >Ctx< and can be indicated for control purposes. Ctx = The „Calibration value“ is determined with a temperature measuring device and stored under menu

item > Ctx <. Limitations of temperature page 41 >SPHigh< - Maximum setpoint >SPLow< - Minimum setpoint

Menu functions

9.1. MENU PUMP – Setting of pump pressure

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

Factory setting: stage 1

Settings: stage 1 ... 4 Flow rate: 11 ... 16 l/m

Pump pressure: 0,22 ... 0,45 bar

1. Press the key. Menu >Pu< is indicated.

2. Press the

3. Change the parameter by pressing pressing the key.

or Press the key if the parameter is to be retained.

The pump flow is pre-adjusted in the factory and can be modified to suit user requirements.

 Using a screwdriver turn the screw (1) anti-clockwise by

360 °.

 Using flat pliers turn the marking of the slide (2) to the

desired position.

 Tighten the screw.

key. The set parameter flashes (example: > 2<)

or and confirm by

Examples: Internal applications in the bath

A 100 % internal bath circulation

(for large bath tanks)

B Reduced internal bath circulation

(for smooth surface of bath fluid)

External/internal applications

C 40 % external discharge,

60 % internal circulation (for large bath tanks)

D 80 % external discharge,

20 % internal circulation (for small bath tanks)

9.2. MENU Configuration

Menu level 1



Level 2 Parameter level



CFG = MENU CONFIGURATION

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

Switch off circulator by pressing the key and call up the menu CONFIGURATION.

 Press the key if a parameter is to be

retained. Correction function for parameters and values (prior to OK).

>3SP< - Switch on and off the 3-setpoint mode

 The parameter flashes, set by pressing

 >YES< - This function can be used by pressing

the key. (refer to page 23)

>rt< - Switch on and off remote control

 The parameter flashes, set by pressing



 For remote control refer to 44  Connect RS232 with PC

>Aut< - Switch on and off autostart

 The parameter flashes, set by pressing

+ AUTOSTART on AUTOSTART off.

See WARNING page 33

>rSt< (RESET) - Use this to reset all values to factory setting.

 Return to factory settings by pressing  During the message – init - all parameters are

reset to factory settings.

Menu functions

9.2.1. Configuration of the mode of the key

Pressing the key normally indicated only one working

Factory setting: no

9.2.2. Remote control: activate – deactivate

Factory setting: OFF

temperature which can be individually adjusted. The configuration opens a menu with 3 setpoints which can be pre-

set. >no< 1-temperature mode

>YES< 3-temperature mode

The circulator is to be prepared for remote control by a personal computer via the serial interface RS232: Set the menu item >>rt< = remote< from >OFF< to >On<.

9.2.3. Automatic / non-automatic start mode

>OFF< No remote control via RS232 >On< Remote control via RS232 The display changes from

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

 AUTOSTART on.  AUTOSTART off.

Notice: The circulator has been configured and delivered by JULABO in accordance with the NAMUR recommendations. This means for the start mode that the unit must enter a safe operating status after a power failure. This safe operating status is indicated by the message „OFF“ or „r OFF“ on the MULTI-DISPLAY (LED). A complete, all-pole shutdown of the main functional elements such as heater and pump motor is effected. The values set on the circulator remain saved and the unit is restarted by pressing the start/stop key in manual control. In remote control mode the values need to be resent by the PC via the interface. If such a safety standard is not required, the NAMUR recommendations can be bypassed with the AUTOSTART function thus allowing a direct start of the circulator by pressing the mains switch or using a timer.

Warning:

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

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

9.2.4. Reset - Factory setting

>YES< resets all values to factory setting.

 A >rSt< RESET can be effected in the > < mode only.

Switch off the circulator by pressing the key and call up the menu CONFIGURATION.

 During the message – init - all parameters are reset to factory

settings

9.3. MENU Control parameters – Xp, Tv, Tn

Menu level 1



Level 2 Parameter level

In most cases the control parameters preset in the factory are adequate for achieving an optimum temperature sequence. The control parameters allow adjustment to special control processes..

Press the retained. Correction function for parameters or values (prior to OK)

Proportional range >Xp<



0.1 … 99.9



3 … 9999

 The parameter flashes, switch by pressing

Reset time >Tn< (Integral component)

 The parameter flashes, switch by pressing

key if a parameter is to be

and

Lead time >Tv< (Differential component)



0 … 999

 The parameter flashes, switch by pressing

and

Menu functions

Setting range:

0.1 ... 99.9

Setting range: 3 ...9999

Setting range: 0 ... 999

Optimum setting

Proportional range >Xp<

The proportional range is the range below the setpoint in which the control circuit reduces the heating capacity from 100% to 0 %

Reset time >Tn< (Integral component)

Compensation of the remaining control deviation due to proportional regulation. An insufficient reset time may cause instabilities. Excessive reset times will result in unnecessary prolongation of compensation of the control difference.

Lead time >Tv< (Differential component)

The differential component reduces the transient time. An insufficient lead time will prolong the time required for compensation of disturbance effects and cause high overshooting during run-up. An excessive lead time could cause instabilities (oscillations)

Optimization instructions for the PID control parameters

Control parameters XP-, TN-, TV- INTERNAL as well as

-EXTERNAL The heat-up curve reveals possible faulty

settings of the control parameter.

Xp too high or Tv too high

Inappropriate settings may produce the following heat-up curves:

Xp too low

Tv/Tn too high or Xp too high

Tv/Tn too low

9.4. MENU SERIAL - BAUDRATE, PARITY, HANDSHAKE

Menu level 1



Level 2 Parameter level



For communication between circulator and a PC or a superordinated process control system the interface parameters of both units must be identical.

Factory settings: 4800 Baud even hardware handshake

 Press the key if a parameter is to be

retained.

>br< - BAUDRATE

 The parameter flashes, switch by pressing

and

4.8 = 4800 Baud

9.6 = 9600 Baud

19.2 = 19200 Baud

38.4 = 38400 Baud

>PtY< - PARITY



 The parameter flashes, switch by pressing

and

0 no: Datenbits = 8; Stopbits = 1 1 odd: Datenbits = 7; Stopbits = 1 2 even: Datenbits = 7; Stopbits = 1

>HS< - HANDSHAKE

 The parameter flashes, switch by pressing

and

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

Menu functions

9.5. MENU ATC - Absolut Temperature Calibration

ATC serves to compensate a temperature difference that might occur between circulator and a defined measuring point in the bath tank because of physical properties.

Example: 1-point calibration

°C

Principle: For ATC calibration, in steady state the bath temperature at the location of the temperature sensor (CT) is determined at the respective adjusted working temperature. This value is then set on the circulator in the menu >ATCalibration< under menu item >Ctx<. This can be a 1-point, 2-point or 3-point calibration.

T 1

3-point calibration

°C

T 1

TT 1 = Original curve

Menu level 1

M B (INT) T

°C

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

°C

CT = Temperature on measuring point TT = Temperature on circulator



Level 2 Parameter level

 Press the key if parameter is to be

retained. Correction function for parameters or values (prior to OK).

>StA< - ATC Status



 The parameter flashes, switch by pressing

and

 >NO< Carry out an ATC calibration  >YES< return to standard operation after

calibration.

>tYP< - ATC TYPE



 The parameter flashes, switch by pressing

and

 A >1-point<, >2-point< or >3-point<



calibration can be carried out.

The value > tt1< is only indicated

 In addition the measured temperature value

>Ct 1< is saved during the next step.

 Integer digits flash, set by pressing



 Decimal digits flash, set by pressing

 If only a 1-point calibration is carried out, the following menu items

are not indicated anymore

The value > tt2< is only indicated



 In addition the measured temperature value

>Ct 2< is saved during the next step.

 Integer digits flash, set by pressing



 Decimal digits flash, set by pressing

 If only a 2-point calibration is carried out, the following menu items

are not indicated anymore

The value > tt3< is only indicated



 In addition the measured temperature value

>Ct 3< is saved during the next step.

 Integer digits flash, set by pressing



 Decimal digits flash, set by pressing

Menu functions

9.5.1. ATC STATUS - YES / NO

9.5.2. ATC - TYPE: 1 -/ 2 -/ 3 POINT

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

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

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

Important: Set to >NO< during the calibration process

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

Important: Set to >YES< after calibration.

 In the > ATC STATUS < >YES< the ATC calibration always affects

the current working temperature; also the one set via interface.

A >1-point<, >2-point< or >3-point< calibration can be carried out. First geometrically define the location for calibration (measuring point

CT), then determine the temperature values of the calibration points. The type of calibrations also determines the number of the following pairs of values indicated on the MULTI-DISPLAY (LED)..

Pairs of values: tt X: Circulator temperature 1 or 2 or 3 (actual value TT )

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

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

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

(value flashes )

9.5.3. Example: 3-point calibration for internal control

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

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

80.00 °C

120.00 °C

160.00 °C

1. Set working temperature setpoint :

Refer to „Direct temperature setting “ page 23

1. By pressing the key or the circulator switches to the active >SETPOINT< see example on the left: >t1 25.00°C<.

The integer digits flash (Example: <25>).

2. Change the value to 80.00 °C by pressing the keys and and

confirm by pressing the key . The decimal digits flash.

Confirm once more by pressing the key .

3. The bath is heated up. Wait for approx. 5 minutes until the temperature is constant.

2. Reading of temperature measuring device

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

>Ct 1< (79.70 °C) >Ct 2< (119.5 °C) >Ct 3< (159.3 °C)

Menu level 1



Level 2 Parameter level

3. Calibration

 Press the key if parameter is to be retained. Correction

function for parameters or values (prior to OK).

 Setting is required only for the first calibration point.



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

The parameter flashes, switch by pressing

and .

 The parameter flashes, switch by pressing

and .

A >3-point< calibration is carried out.

Menu functions

The value >tt1< is only indicated



Return to 1. Set working temperature value: 120.00 °C



Setting >Ct 1< by using the keys.

 Integer digits flash, set by pressing

(79) +

 Decimal digits flash, set by pressing

(70) +

The first of 3 points is calibrated.

The value >tt2< is only indicated

Setting >Ct 2< by using the keys.

 Integer digits flash, set by pressing

(119) +

 Decimal digits flash, set by pressing

(5) +

The second of 3 points is calibrated.

Return to 1. Set working temperature value: 160.00 °C

The value >tt3< is only indicated



4. Return to standard operation



Setting >Ct 3< by using the keys.

 Integer digits flash, set by pressing

(159) +

 Decimal digits flash, set by pressing

(3) +

The 3-point calibration is completed

 Set >YES< after calibration.

(Standard operation)

9.6. MENU LIMITS

Menu level 1



Level 2 Parameter level

Factory settings::

200 °C

(Setpiont High)

>Li< = LIMITS – limitation of operating temperature range Maximum and minimum setpoint

Restriction of the adjustable temperature range.



The limitation of the operating temperature range effects the temperature setting in the menu with the key

Only setting of working temperatures which lie within the determined limits is possible

This applies to settings in the MENU ,

Press the key if parameter is to be retained. Correction function for parameters or values (prior to OK).

 Integer digits flash, set by pressing

 Decimal digits flash, set by pressing

 Integer digits flash, set by pressing

 Decimal digits flash, set by pressing

-50 °C

(Setpoint Low)

and for settings in the MENU high temperature low temperature

The temperature values are automatically deferred into the limit range.

Setting range: -50,0 °C ... +200,0 °C

(refer to page 23)

(refer to page 28)

Troubleshooting guide / error messages

10. Troubleshooting guide / error messages

Alarm with complete shutdown:

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

+

„ “ lights up and a continuous signal sounds. The code for the cause of alarm is indicated on the MULTI-DISPLAY (LED).

Warning without a complete shutdown of the unit The MULTI-DISPLAY (LED) indicates the cause for the warning in form

of a code and an acoustic signal sounds in regular intervals. These messages appear every 10 seconds.

Press the key

Low level alarm The circulator is operated without or insufficient bath fluid.

Switch the unit off with the mains switch, refill bath fluid and switch on! Tube breakage has occurred (insufficient filling level of bath fluid caused

by pumping-out) Replace the tubing and refill bath liquid.

The float is defect (e.g. transport damage). Repair by authorized JULABO service personnel.

to stop the signal

During the self-test after switch-on a short –circuit is detected between pin 2 and pin 4 of the control line or the control line was disconnected during operation. Reconnect the control line or repair short-circuit. Excess temperature warning or Excess temperature alarm

Type of warning: set to >0 = warning< or >1 = alarm< Low temperature warning or Low temperature alarm.

Typ of warning: set to >0 = warning< or >1 = alarm<  Cable of working temperature sensor is disconnected or short-

circuited. Defect of working or excess temperature protector. Working temperature sensor and excess temperature protector report a temperature difference of more than 35 K.

Other errors Internal hardware error – call service

Error in A/D converter

Excess temperature protector defect. The protection temperature is below the set working temperature

setpoint. Set the protection temperature to a higher value.

The cable of the excess temperature protector has been disconnected or short-circuited

The early warning system for low level reports a critical fluid level. Refill bath fluid.

By quickly switching off and restarting the unit the alarm is

1545

4 s

A M P

cancelled. If the error occurs once more after the restart, a remote diagnosis is required.

„Configuration Error“ The configuration of the circulator does not correspond with its current application.

Press the key for a non-recurring, automatic change of the configuration. In this case please call the JULABO Technical Service or an authorized dealer.

Disturbances that are not indicated.

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

Mains circuit breakers (resettable) 15 A

Electrical connections

11. Electrical connections

Notice:

Use shielded cables only. The shield of the connecting cable is electrically connected to the plug housing. The unit ensures safe operation if connecting cables with a maximum length of 3 m are used. The use of longer cables does not affect proper performance of the unit, however external interferences may have a negative impact on safe operation (e.g. cellular phones).

/ Control output

The connector may be used for control of JULABO refrigerated

1 6

RS232C

Accessories: Order No. Description

circulators or as output for alarm messages.

Circuit: Operation = relay powered Alarm = relay not powered

Pin assignment: Pin Signal

1 +24 V (I max. current 25 mA) 2 0 V 3 Alarm relay 4 Reserved - do not use! 5 Cooling pulse

RS232 serial interface

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

Pin assignments RS232: Pin 2 RxD Receive Data

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

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

RS232 interface cable Circulator (9-pol) PC (9-pol) Pin 2 RxD  Pin 3 TxD Pin 3 TxD  Pin 2 RxD Pin 5 GND  Pin 5 GND Pin 7 RTS  Pin 8 CTS Pin 8 CTS  Pin 7 RTS

8 980 073 RS232 interface cable 9-pol./9-pol. , 2,5 m 8 900 110 USB interface adapter cable

12. Remote control

12.1. Setup for remote control

1 6

RS232C

12.2. Communication with a PC or a superordinated data system

A transfer sequence consists of:

 Check the interface parameters for both interfaces (on circulator

and PC) and make sure they match. (Serial interface refer to page 35.)

 In the menu >CFG< (Configuration) set the menu item >rt<

(Remote) to >ON< . (refer to page 32).

 Connect both units with an interface cable.

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

If the circulator is put into remote control mode via the configuration level, the MULTI-DISPLAY (LED) will read „r OFF“ = REMOTE STOP. The circulator is now operated via the computer. In general, the computer (master) sends commands to the circulator (slave). The circulator sends data (including error messages) only when the computer sends a query.

In remote control mode, the start command and all values to be set must be resent by the PC via the interface in case of a power interruption. AUTOSTART is not possible.

 command  space (

; Hex: 20)



 parameter (decimal separation with a period)  end of file (; Hex: 0D)

The commands are divided into in and out commands. in commands: retrieve parameters out commands: set parameters

The out commands are valid only in remote control mode. Command to set the working temperature > t 1< to 55.5 °C

out_sp_00  55.5 Command to retrieve the working temperature > t 1<

in_sp_00 Response from the circulator: 55.5

Remote control

12.3. List of commands

out commands: Setting parameters or temperature values.

Command Parameter Response of circulator

version None Number of software version (V X.xx) status none Status message, error message (see page 47 )

out_mode_01 0 Use working temperature >t 1< out_mode_01 1 Use working temperature >t 2< out_mode_01 2 Use working temperature >t 3< out_mode_05 0 Stop the unit = R –OFF-. out_mode_05 1 Start the unit.

out_sp_00 xxx.xx Set working temperature. „t 1“ out_sp_01 xxx.xx Set working temperature. „t 2“ out_sp_02 xxx.xx Set working temperature. „t 3“ out_sp_03 xxx.xx Set high temperature warning limit „t High“ out_sp_04 xxx.xx Set low temperature warning limit „t Low“ out_sp_07 x Set the pump pressure stage. (1 ... 4)

out_par_06 xxx Xp control parameter of the internal controller. out_par_07 xxx Tn control parameter of the internal controller. out_par_08 xxx Tv control parameter of the internal controller.

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

Command Parameter Response of circulator

in_pv_00 none Actual bath temperature. in_pv_01 none Heating power being used (%). in_pv_03 none Temperature value registered by the safety sensor. in_pv_04 none Setpoint temperature („SafeTemp“) of the excess

temperature protection

in_sp_00 none Working temperature „t 1“ in_sp_01 none Working temperature „t 2“ in_sp_02 none Working temperature „t 3“

Command Parameter Response of circulator

in_sp_03 none High temperature warning limit „t High“ in_sp_04 none Low temperature warning limit „t Low“ in_sp_07 none Pump pressure stage

in_par_01 none Te - Time constant of the external bath. in_par_02 none Si - Internal slope in_par_03 none Ti - Time constant of the internal bath. in_par_06 none Xp control parameter of the internal controller. in_par_07 none Tn control parameter of the internal controller. in_par_08 none Tv control parameter of the internal controller.

in_mode_01 none Selected setpoint:

0 = Setpoint „t 1“ 1 = Setpoint „t 2“ 2 = Setpoint „t 3“

in_mode_05 none Circulator in Stop/Start condition:

0 = Stop 1 = Start

12.4. Status messages

Status messages Description

00 MANUAL STOP 01 MANUAL START 02 REMOTE STOP 03 REMOTE START

12.5. Error messages

ERROR MESSAGES Description

-01 LOW LEVEL ALARM Low liquid level alarm.

-02 REFRIGERATOR ALARM Control cable of the refrigerated circulator or

-03 EXCESS TEMPERATURE WARNING High temperature warning.

-04 LOW TEMPERATURE WARNING Low temperature warning.

Circulator in „OFF“ state. Circulator in keypad control mode. Circulator in „r OFF“ state. Circulator in remote control mode.

MVS solenoid valve controller short-circuited or interrupted.

-05 WORKING SENSOR ALARM Working temperature sensor short-circuited or interrupted.

Remote control

ERROR MESSAGES Description

-06 SENSOR DIFFERENCE ALARM Sensor difference alarm. Working temperature and safety sensors report a temperature difference of more than 35 K.

-07 I2C-BUS ERROR Internal error when reading or writing the I2C bus.

-08 INVALID COMMAND Invalid command.

-09 COMMAND NOT ALLOWED IN

CURRENT OPERATING MODE

-10 VALUE TOO SMALL Entered value too small.

-11 VALUE TOO LARGE Entered value too large.

-12 TEMPERATURE MEASUREMENT

ALARM

-13 WARNING : VALUE EXCEEDS

TEMPERATURE LIMITS

-14 EXCESS TEMPERATURE

PROTECTOR ALARM

-20 WARNING: CLEAN CONDENSOR OR

CHECK COOLING WATER CIRCUIT OF REFRIGERATOR

-21 WARNING: COMPRESSOR STAGE 1

DOES NOT WORK

-22 WARNING: COMPRESSOR STAGE 2

DOES NOT WORK

-23 WARNING: HIGH TEMPERATURE

ON COMPRESSOR STAGE 1

-24 WARNING: HIGH TEMPERATURE

ON COMPRESSOR STAGE 2

-25 REFRIGERATOR WARNING Error in the refrigerating machine.

Invalid command in current operating mode.

Error in A/D converter.

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

Excess temperature protection alarm

Cooling of the condenser is affected. Clean air-cooled condenser. Check the flow rate and cooling water temperature on water-cooled condenser.

Compressor stage 1 does not work.

Compressor stage 2 does not work.

Excess temperature on compressor stage 1.

Excess temperature on compressor stage 2.

-30 CONFIGURATION ERROR:

CONFIRM BY PRESSING <ENTER> ON CIRCULATOR

-33 SAFETY SENSOR ALARM Excess temperature sensor short-circuited or

-40 NIVEAU LEVEL WARNUNG Low liquid level warning in the internal

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

Press to automatically perform a single modification of the configuration.

interrupted.

reservoir.

13. JULABO Service – Online remote diagnosis

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

 Installation is easy and is performed step by step.

Please observe the instructions.

 Data read-out is possible in the conditions

“OFF”, “R OFF” or “ALARM”.

 Connect the circulator to the computer using an interface

cable.

 Start the EasyBlackBox program.

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

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

 Data is read out and shown on the monitor

divided into the sections >Einstellungen/Settings<, >Alarmspeicher/Alarms stored<, >Blackbox<

 see example

 After pressing >Speichern/Save<, a text file is

created. The program suggests a filename >C:\model description and barcode no.<. Modifications are possible.

 E-mail this file to service@julabo.de, JULABO's

service department. JULABO is thus able to provide rapid support.

Cleaning / repairing the unit

14. Cleaning / repairing the unit

Caution:

 Always turn off the unit and disconnect the mains cable from the power

source before cleaning the unit.

 Prevent humidity from entering into the circulator.  Electrical connections and any other work must be performed by qualified

personnel only.

Cleaning:

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

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

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

Repairs

Before asking for a service technician or returning a JULABO instrument for repair, please contact an authorized JULABO service station.

When returning the unit:

 Clean the unit in order to avoid any harm to the service

personnel.

 Attach a short fault description.  During transport the unit has to stand upright. Mark the

packing correspondingly.

 When returning a unit, take care of careful and adequate

packing.

 JULABO is not responsible for damages that might occur from

insufficient packing.

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

JULABO MA User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual