English Operating manual Open Bath Circulators ED-5A ED-5 ED-5M JULABO GmbH 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 info@julabo.de www.julabo.de 1.951.0270-V2 19510270-V2.doc 06/13 23.07.
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.
ED TABLE OF CONTENTS Operating manual .................................................................................................................... 4 1. Intended use ................................................................................................................... 4 1.1. Description .................................................................................................................. 4 2. Operator responsibility – Safety recommendations ...............................
Operating manual 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, semiluxury 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.
ED Persons: The operator is responsible for the qualification of the personnel operating the units. The operator should be constantly informed about the dangers involved with their job activities as well as preventive actions. Make sure all persons expected to carry out operation, installation and maintenance of the unit read and understand the safety information and operating instructions.
Operator responsibility – Safety recommendations 1 Warning label W00: Colors: yellow, black Danger area. Attention! Observe instructions. (operating manual, safety data sheet) 2 Mandatory label M018: Colors: blue, white Carefully read the user information prior to beginning operation. Scope: EU or Semi S1-0701 Table A1-2 #9 Carefully read the user information prior to beginning operation. Scope: USA, NAFTA 2 Particular care and attention is necessary because of the wide operating range.
ED 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.
Operator responsibility – Safety recommendations 2.4. Technical specifications ED Temperature selection Temperature indication Resolution Temperature control Heater wattage (at 230 V) Heater wattage (at 115V) Circulating pump: discharge, max.at 0 bar pressure, max. at 0 l Ambient temperature kW kW digital LED 0.1 PID1 2,0 1,0 l/min bar °C 15 0.35 5 ...
ED Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 20 to 120 °C Low liquid level protection float switch Classification according to DIN 12876-1 class I Alarm indication optical + audible (permanent) Environmental conditions according to EN 61 010, part 1: Use only indoor. Altitude up to 2000 m - normal zero. Ambient temperature: +5 ... +40 °C (for storage and transportation) Air humidity: Max. rel.
Operating instructions Operating instructions 3. 3.1. Safety notes for the user 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.
ED 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. Check the filling level of the bath fluid from time to time. Pump and heater must always be fully covered with the bath fluid! The instrument is not suited for unsupervised continuous operation.
Safety notes for the user 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 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.
ED 4.
Preparations 5. 5.1. Preparations Installation Notice: Plexiglas and Makrolon baths are not resistent to solvents. Avoid contamination of the bath fluid with solvents. Top view A A Place the circulator in an upright position. ED-5A / ED-5M The circulator (A) mounted on a stainless steel bridge is placed on the back of the bath tank. ED-5 The circulator (A) mounted on a stainless steel bridge is placed on the back of bath tank. Close the bath tank with the bath cover (B). B 5.2.
ED See website for list of recommended bath fluids. Contact: see page 5 Notice: Please contact JULABO before using other than recommended bath fluids. Only use non-acid and non corroding bath fluids. JULABO takes no responsibility for damages caused by the selection of an unsuitable bath fluid. Unsuitable bath fluids are liquids which e.g. are very highly viscous (much higher than 30 mm2 /s at the respective working temperature) have corrosive characteristics or tend to cracking. 5.3.
Preparations 5.4. 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. Connecting the external system Unscrew the collar nuts from the pump connector (24a). Slide the tubing onto the pump connectors for feed (24a) and return flow (24b). Secure the tubing with tube clamps. ED-5A / ED-5M ED-5 5.5. Tubing Recommended tubing: Order No.
ED 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.
Preparations 5.7. Countercooling Notice: Observe the laws and regulations of the water distribution company valid in the location where the unit is operated. Securely attach all tubing to prevent slipping. For applications near the ambient temperature, the cooling coil must be connected to the water mains. 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).
ED 6. 6.1. Operating procedures 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. Never operate equipment with damaged mains power cables. Regularly check the mains power cables for material defects (e.g. for cracks).
Operating procedures 6.3. Automatic / non-automatic start mode Keep depressed the key and turn on the circulator with the mains power switch. For a short while the LED temperature DISPLAY indicates the effective 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).
ED 6.4. Setting the temperatures Factory setting: 25 °C Setting can be carried out in the start/stop condition. 1. Press one of the keys for a short moment. The setpoint value instead of the actual value is indicated on the display for about 8 seconds. The value can now be changed. 2. Change value: Press to set a higher value. Press to set a lower value. Keep the keys depressed for the value to change fast. 3. 6.5. Press the key to store the value.
Troubleshooting guide / Error messages 7. Troubleshooting guide / Error messages + Whenever the microprocessor electronics registers a failure, a complete shutdown of the heater and circulating pump is performed. The alarm light " " illuminates and a continuous signal tone sounds. The LED temperature display indicates the cause for the alarm in form of a code. Press the key to quit the audible signal. The circulator is operated without bath fluid, or the liquid level is insufficient.
ED 8. Cleaning 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.
Repairing the unit Other cleaning products Alcohol up to 5% alcohol (1 Petroleum ether (1 Javelle water(1 Ammonia solution(1 Soap water (2 Soda-water (2 (1 (2 9.
