JULABO EH User Manual

English

Operating manual

Heating Immersion Circulator

1.951.0252-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

19510252-V2.doc Print date: 11.07.13

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 .................................................................................................................... 4

1. Intended use .................................................................................................................... 4

1.1. Description .................................................................................................................. 4

2. Operator responsibility – Safety recommendations ......................................................... 4

2.1. Disposal ....................................................................................................................... 7

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

2.3. Warranty conditions ..................................................................................................... 8

2.4. Technical specifications ............................................................................................... 9

Operating instructions ............................................................................................................ 11

3. Safety notes for the user ................................................................................................ 11

3.1. Explanation of safety notes ....................................................................................... 11

3.2. Explanation of other notes ......................................................................................... 11

3.3. Safety recommendations ........................................................................................... 11

4. Operating controls and functional elements ................................................................... 14

5. Preparations .................................................................................................................. 15

5.1. Installation ................................................................................................................. 15

5.2. Bath fluids .................................................................................................................. 16

5.3. Temperature application to external systems ............................................................ 17

5.3.1. Pump set ........................................................................................................... 17

5.3.2. Tubing ............................................................................................................... 17

5.4. Adjusting the pump flow ............................................................................................ 18

5.5. Countercooling .......................................................................................................... 19

6. Operating procedures .................................................................................................... 20

6.1. Power connection ...................................................................................................... 20

6.2. Switching on / Start - Stop ......................................................................................... 20

6.3. Automatic / non-automatic start mode ....................................................................... 21

6.4. Setting the temperatures ........................................................................................... 21

6.5. ATC - Absolute Temperature Calibration ................................................................... 22

6.6. Timer function ............................................................................................................ 23

6.6.1. Setting the time ................................................................................................. 23

6.6.2. Timer operation ................................................................................................. 23

6.7. Safety installations according to IEC 61010-2-010 .................................................... 24

6.7.1. Excess temperature protection ......................................................................... 24

6.7.2. Low liquid level protection ................................................................................. 24

7. Troubleshooting guide / Error messages ....................................................................... 25

8. Electrical connections .................................................................................................... 26

9. Cleaning / repairing the unit ........................................................................................... 27

Operating manual

1. Intended use

JULABO circulators have been designed for temperature application to 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 the setpoint that can be indicated on the LED temperature display.

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

requirements of the bath.

 ATC - Absolute Temperature Calibration (1-point calibration)

PID1

 Safety installations conforming to IEC 61010-2-010

The excess temperature protection is a safety installation independent from the control circuit. The safety value is set using a tool (screwdriver).

120

160

°C

If the low level protection device is triggered, a complete shutdown of the heater and circulating pump is effected.

 Electrical connection:

Alarm output for external alarm message or control of JULABO refrigerating baths.

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:

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.

JULABO GmbH Eisenbahnstraße 45 77960 Seelbach / Germany

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

 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. The unit is not for use in explosive atmosphere. Only use recommended materials (bath fluids). Only use non-acid and non corroding materials.

Operator responsibility – Safety recommendations

When using hazardous materials or materials that could become hazardous, the operator

must affix the enclosed safety labels to the front of the unit so they are higly 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.

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)

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.

2.1. Disposal

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!

Operator responsibility – Safety recommendations

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.

2.4. Technical specifications

EH Working temperature range °C 20 ... 150 Temperature stability °C ±0.03

Temperature selection digital Temperature indication LED Resolution °C 0.1 ATC - Absolute Temperature Calibration 1-point Temperature control PID1

Heater wattage (at 230 V) kW 2.0 Heater wattage (at 115 V) kW 1.0

Circulating pump: discharge, max.at 0 bar l/min 15 pressure, max. at 0 l bar 0.35

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

Overall dimensions (WxDxH) cm 13x15x33 Usable bath depth cm 8 ... 14.5

Weight kg 3,3 Ambient temperature °C 5 ... 40

Mains power connection 230 V/50 Hz V/ Hz 190-253 / 50 Current input (208V / 230 V) A 8 / 9 Mains power connection 230 V/60 Hz V/ Hz 190-253 / 60 Current input (208V / 230 V) A 8 / 9 Mains power connection 115 V/60 Hz V/ Hz 103-127 / 60 Current input (at 115 V) A 9 Mains power connection 100 V/60 Hz V/ Hz 90 ... 110 / 60 Current input (at 100 V) A 9

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.

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