Recirculating Cooler
29
7.
Setting the temperatures
Factory settings: 25 °C
Press the
key to call up the menu for temperature selection.
L
Setting can be carried out in the start/stop condition.
Example: Actual value
Setpoint
Ð
Î
Î
Actual value
Ð
Î
1.
Press the
key. The setpoint value instead of the actual value is
indicated on the display. The value can now be changed.
2.
Change the value
: (Example: 30.0 °C to 65.0 °C)
x
Use the cursor keys
to move left or right on the display until
the numeral you wish to change blinks.
x
Use the increase/decrease arrows
to change the selected
numeral (-, 0, 1, 2, 3, ... 9).
3.
Press enter
to store the value.
8.
Safety installations, warning functions
Check the safety installation at least twice a year! See page 21
Settings for the excess temperature protection according to IEC 61010-2-
010 and for the warning functions for high and low temperature and the
conductivity limit are made in a menu that is called up with the key
.
8.1. Excess
temperature protection
°C
10
30
60
130
180
220
This safety installation is independent of the control circuit. When the
temperature of the bath fluid has reached the safety temperature, a
complete shutdown of the heater, cooling maschine and pump is effected.
The alarm is indicated by optical and audible signals (continuous tone) and
on the MULTI-DISPLAY (LED) appears the error message "
E
rror
01
".
1.
Press the key
and call up the menu
.
2.
Press enter
.
The adjusted cut-out value is indicated on the MULTI-DISPLAY (LED).
3.
Set the new cut-out value using a screwdriver via the MULTI-DISPLAY
(LED). (Example: 100 °C)
4.
Press
to update the display immediately.
Recommendation:
Set the excess temperature protection
at 5 to 10 °C above the working
temperature setpoint.
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