
Manual operation
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7.5. Internal / external control
EXT
The High Temperature Circulator offers the possibility of internal
temperature control in a primary bath vessel or external control directly in
an external system.
Setup for external control:
Connect a Pt100 sensor to the socket „EXT“ of the programmable
controller, if necessary perform a calibration using the „ATC Ext:“ function
(see 8.8.
Sensors) and then securely fix the sensor in the external
system.
Switching from internal to external control:
Press the key
in operating state “OFF“ to select the control
type.
The DIALOG-DISPLAY (LCD) indicates the effective control type.
Press the start/stop key
.
Temperature indication:
Both actual temperatures are indicated at the same time:
1) on the MULTI-DISPLAY (LED)
2) on the DIALOG-DISPLAY (LCD).
Press the key
to swap the values on the displays.
The indicator light „Ext“ refers to the indication on the MULTI-
DISPLAY (LED).
Caution:
Place the external sensor into the bath medium and securely fix the sensor.