Quality Management System
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2. Quality Management System
The JULABO Quality Management System:
Development, production and distribution of temperature application instruments for
research and industries conform to the requirements according to DIN EN ISO
9001:1994-08.
Certificate Registration No. QA 051004008.
3. Unpacking and checking
Unpack the circulator and accessories and check for damages incurred during transit. These should be
reported to the responsible carrier, railway, or postal authority, and a request for a damage report
should be made. 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.
4. Description
The JULABO refrigerated circulators employ a circulator head and a cooling machine with bath tank,
and have been designed for heating and cooling of liquids in a bath tank.
Besides the cooling aggregate, the main functional elements are the heater, circulation pump, and control
electronics. An electronic proportional temperature control (PID characteristic) adapts the heat supplied
to the thermal requirements of the bath.
Setting is rapid and simple using the keypad with its easy to learn symbols. Keypad is splash-proof,
easily cleaned and ergonomically designed.
The microprocessor technology allows four temperature values to be stored and indicated on the
MULTI-DISPLAY (LED): working temperatures T1 and T2, high and low temperature warning limits.
The safety value for excess temperature protection, a safety installation independent from the control
circuit, is adjustable on the front with simultaneous indication on the MULTI-DISPLAY (LED).
The RS232/RS485 port permits modern process engineering without additional interface, directly on-
line, from the circulator to your application equipment.
Besides the digital interface, additionally analog connectors are provided, such as for Pt100 external
sensor, analog programmer input, temperature recorder output and others.
The circulator conforms to the safety requirements specified by DIN 12 876 (safety class III), as well as
DIN 58 966, and the guideline for first voltage range EN 61010.
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