JULABO MA-26 User Manual

English

Operating Manual

Heating Circulators

MA-4 MA-6 MA-12 MA-26

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

1.951.0347-V2 06/13

19510347-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 ......................................................................................................... 17

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

5.3.1. Tubing ...................................................................................................... 19

5.4. Filling / draining ................................................................................................ 20

5.5. Countercooling ................................................................................................. 21

6. Operating procedures .......................................................................................... 23

6.1. Power connection ............................................................................................. 23

6.2. Switching on / Start – Stop ............................................................................... 23

6.2.1. Switching on the circulator ....................................................................... 23

7. Setting of temperatures ............................................................................ 24

7.1. 1-setpoint mode / Direct setting of temperatures ............................................. 24

7.2. Using the pre-setting in the menu ........................................................ 24

Safety installations, warning functions ..................................................... 26

8.1. Excess temperature protection ........................................................................ 26

Operating manual

8.1.1. Early warning system, low level protection .............................................. 27

8.2. Switch-over from warning to shutdown function .............................................. 28

8.3. Over and Sub temperature warning function ................................................... 29

9. Menu functions ......................................................................................... 30

9.1. MENU PUMP – Setting of pump pressure ....................................................... 31

9.2. MENU Configuration ........................................................................................ 32

9.2.1. Configuration of the mode of the key ........................................... 33

9.2.2. Remote control: activate – deactivate ...................................................... 33

9.2.3. Automatic / non-automatic start mode ..................................................... 33

9.2.4. Reset - Factory setting ............................................................................. 34

9.3. MENU Control parameters – Xp, Tv, Tn .......................................................... 34

9.4. MENU SERIAL - BAUDRATE, PARITY, HANDSHAKE .................................. 36

9.5. MENU ATC - Absolute Temperature Calibration ............................................. 37

9.5.1. ATC STATUS - YES / NO ........................................................................ 39

9.5.2. ATC - TYPE: 1 -/ 2 -/ 3 POINT ................................................................. 39

9.5.3. Example: 3-point calibration for internal control ...................................... 40

9.6. MENU LIMITS .................................................................................................. 42

10. Troubleshooting guide / error messages ............................................................. 43

11. Electrical connections .......................................................................................... 45

12. Remote control ..................................................................................................... 46

12.1. Setup for remote control .............................................................................. 46

12.2. Communication with a PC or a superordinated data system ....................... 46

12.3. List of commands ......................................................................................... 47

12.4. Status messages ......................................................................................... 48

12.5. Error messages ............................................................................................ 48

13. JULABO Service – Online remote diagnosis ....................................................... 50

14. Cleaning / repairing the unit ................................................................................. 51

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).

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 Open Bath Circulators MA-4 MA-6 MA-12 MA-26

Working temperature range °C 20 ... 200 20 ... 200 20 ... 200 20 ... 200 Temperature stability °C ±0,01 ±0,01 ±0,01 ±0,01 Bath opening (WxL) cm 13x15 13x15 22x15 22x30 Bath depth cm 15 20 20 20 Filling volume from ... to liters 3 ... 4,5 4,5 ... 6 7,5 ... 12 18 ... 26 Overall dimensions (WxDxH) cm 21x42x38 21x43x42 30x43x45 36x61x45 Weight kg 9,6 12,5 13,0 26,0

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.

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 - 60Hz 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.

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

is locked for a short time.

- icon for „keep key pressed down“.

Operating controls and functional elements 4

5 6 7

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

MULTI-DISPLAY (LED) temperature indication, menu indication

Navigation aids

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

11 12 13

16 18 20

RS232

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

+ 35 hidden pages