JULABO Magnum 91 Temperature System - Manual (Page 5)

Temperature System Magnum 91
5
Operating manual
1. Intended use
JULABO Temperature Systems have been designed for temperature application to specific fluids in a closed
system (oop circuit). 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
ESC ESC
SET
ICC
TCF
RS232
RS485
Pt100
PUMP
SMART

The Temperature Systems 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 VFD COMFORT-DISPLAY and LCD DIALOG-DISPLAY.

The integrated programmer allows storing and running temperature and time-dependent
processes.

The control electronics including “ICC - Intelligent Cascade Control“ automatically adapts
the heat supplied to the thermal requirements of the bath.

The TCF - Temperature Control Features allow the user to have access to all important
temperature control parameters. This means: Full control on the control mode and the
chance to manually adjust or adapt control to the specific application.

Electrical connections:
The serial interface, switchable from RS232 to RS485, allows modern process technology
without additional interface.
The following analog sockets are available:
The REG+E-PROG socket for setpoint selection via an external, analog programmer.
At the same time, this socket provides three analog outputs for temperature recorders.
The external Pt100 socket for external control.
The alarm output for an external signal.
The stand-by input for external emergency switch-off.

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 LCD
DIALOG-DISPLAY.

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.

Intelligent pump system. The pump capacity (electronically adjustable via the motor
speed) enables to adapt to varying conditions for internal and external temperature
applications.