Julabo EH Operating Manual

Julabo EH Operating Manual

Heating immersion circulator

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English
Operating manual
Heating Immersion Circulator
EH
JULABO USA, Inc.
884 Marcon Boulevard
Allentown, PA 18109
Phone: +1(610) 231-0250
Fax:
+1(610) 231-0260
info @ julabo.com
www.julabo.com
19530252.doc
Druck: 29.04.11

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  • Page 1 English Operating manual Heating Immersion Circulator JULABO USA, Inc. 884 Marcon Boulevard Allentown, PA 18109 Phone: +1(610) 231-0250 Fax: +1(610) 231-0260 info @ julabo.com www.julabo.com 19530252.doc Druck: 29.04.11...
  • Page 2 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.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS Operating manual ........................4 Intended use........................4 1.1. Description ........................4 Operator responsibility – Safety recommendations ............4 2.1. Disposal........................6 2.2. Technical specifications....................7 Operating instructions ......................9 Safety notes for the user....................9 3.1. Explanation of safety notes ..................9 3.2. Explanation of other notes...................9 3.3.
  • Page 4: Operating Manual

    Operating manual Operating manual 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.
  • Page 5 If you have any questions concerning the operation of your unit or the information in this manual, please contact us! Contact JULABO USA, Inc. Phone:+1(610) 231-0250 884 Marcon Boulevard Fax: +1(610) 231-0260 Allentown, PA 18109 info @ julabo.com www.julabo.com Safety instructions for the operator: You have received a product designed for industrial use.
  • Page 6: Disposal

    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.
  • Page 7: Technical Specifications

    2.2. Technical specifications Working temperature range °C 20 ... 150 Temperature stability °C ±0.03 Temperature selection digital Temperature indication Resolution °C ATC - Absolute Temperature Calibration 1-point Temperature control PID1 Heater wattage (at 230 V) Heater wattage (at 115 V) Circulating pump: discharge, max.at 0 bar l/min...
  • Page 8 Operator responsibility – Safety recommendations Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 0 °C ... 170 °C Low liquid level protection float switch Classification according to DIN 12876-1 class III Alarm message optical + audible (permanent) Environmental conditions according to IEC 61 010-1: Use only indoor.
  • Page 9: Operating Instructions

    Operating instructions 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).”...
  • Page 10 Safety notes for the user 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. • Never operate the unit without bath fluid in the bath. •...
  • Page 11 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.
  • Page 12: Operating Controls And Functional Elements

    Control indicator – Cooling Control indicator – Alarm Adjustable excess temperature protection according to IEC 61010-2-010 °C Socket: control cable of JULABO refrigerated circulator or output for alarm messages Mains power cable with plug Mains fuses: Safety cutout 15 A...
  • Page 13: Preparations

    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. D a n g e r o f e l e c t r i c s h o c k ! First pull out the power plug to disconnect the unit from the power supply net.
  • Page 14: Bath Fluids

    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., •...
  • Page 15: Temperature Application To External Systems

    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. The circulator is used for temperature application to external, closed systems (loop circuit).
  • Page 16: Adjusting The Pump Flow

    Preparations 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: •...
  • Page 17: Countercooling

    5.5. 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. For applications near the ambient temperature, the cooling coil (order no. 8 970 105) must be connected to the water mains.
  • Page 18: Operating Procedures

    Operating procedures Operating procedures 6.1. Power connection Caution: • Only connect the unit to a power socket with earthing contact (PE – protective earth)! • The power supply plug serves as safe disconnecting device from the line and must be always easily accessible. •...
  • Page 19: Automatic / Non-Automatic Start Mode

    AUTOSTART on. AUTOSTART off. NOTE: The circulator has been configured and supplied by JULABO according to N.A.M.U.R. recommendations. This means for the start mode, that the unit must enter a safe operating state after a power failure (non-automatic start mode). This safe operating state is indicated by „OFF“...
  • Page 20: Atc - Absolute Temperature Calibration

    Operating procedures 6.5. ATC - Absolute Temperature Calibration • 1-point calibration: Working temperature range refer to page 7 The temperature sensor can be calibrated at any value within the working temperature range. • Set the high temperature cut-off / safety temperature to a value above the desired adjustment value (Example: 80 °C).
  • Page 21: Timer Function

    6.6. Timer function With the timer function the operating time can be limited to an allowed time. 6.6.1. Setting the time The setting can only be made in the Stop status. Calling the timer function: Factory setting: Hold the key pressed and activate the edit key shortly.
  • Page 22: Safety Installations According To Iec 61010-2-010

    Operating procedures 6.7. Safety installations according to IEC 61010-2-010 Check the safety installations at least twice a year! See page 6.7.1. Excess temperature protection Warning: The excess temperature protection should be set at least 25 °C below the fire point of the bath fluid used. In the event of wrong setting there is a fire hazard! We disclaim all liability for damage caused by wrong settings! This safety installation is independent of the control circuit.
  • Page 23: Troubleshooting Guide / Error Messages

    • Cable of the excess temperature sensor interrupted or short-circuited. After eliminating the malfunction, press the mains power switch off and on again to cancel the alarm state. If the unit cannot be returned to operation, contact an authorized JULABO service station.
  • Page 24: Electrical Connections

    Notice: Use shielded cables only. The shield of the connecting cable is electrically connected to the plug housing. / Control output connector may be used for control of JULABO refrigerated circulators or as output for alarm messages. Circuit: Operation = relay powered...
  • Page 25: Cleaning / Repairing The Unit

    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...
  • Page 26: Warranty Provisions

    WARRANTY PROVISIONS 10. WARRANTY PROVISIONS The following Warranty Provisions shall apply to products sold in North America by Julabo (“Seller”) to the entity shown as buyer (“Buyer”) on Seller’s invoice. Initial Warranty. Upon Seller’s receipt of payment in full for the products and subject to Buyer’s...
  • Page 27 CONSEQUENTIAL DAMAGES TO BUYER OR ANY THIRD PARTY AND ALL SUCH DAMAGES ARE HEREBY DISCLAIMED. Assignment. Buyer shall not assign any of its rights or obligations hereunder without the prior written approval of Seller; provided, however, that if Buyer is a distributor of Seller, the rights and obligations of Buyer under these Warranty Provisions shall inure to the benefit of and be binding upon Buyer’s customers who provide the product’s proof of purchase to Seller pursuant to the terms set forth herein.

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