JULABO MA Heating Immersion Circulator - Manual (Page 5)

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