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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.
The PID temperature control adapts the heat supplied to the thermal
requirements of the bath.
PID2
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
3
ATC
selected spot in the bath over the full temperature range.
Electrical connections:
The serial interface RS232 allows modern process technology without
RS232
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)
SMART
enables to adapt to varying conditions for internal and external
PUMP
temperature applications.
The circulator conforms to the relevant requirements specified by
European guidelines.
MC
5
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