ECO GOLD
25/08/2011/ YACE0088 Maintenance 53
Before a longer unsupervised operation check the overtemperature protection:
− Slowly reduce T
max
as described in (Ì 7.4.5). The thermostat
should switch off when the actual temperature is greater than
T
max
.
Alarm signaling (see above) must occur.
− Reset the switch-off point to be higher than the bath tempera-
ture.
− Unlock the "Overtemperature" display with
.
8.1.2 Low level: Alarm and checking
When the liquid level falls so far that the heaters are no longer
completely covered with liquid, a two-tone alarm sounds. "Low
Level Pump" appears in the display, the heater switches off on all
poles and the pump and chiller are switched off via the electron-
ics.
− Rectify the cause of the malfunction.
− Top up the missing heat transfer liquid (Ì 6.3 and 6.4).
−
Unlo
ck the "Low Level Pump" display with
.
Check the safety system at regular intervals (Ì 8.3.2) by lowering the bath level. Do not c
a
rry out this
test at a bath temperature below 0 °C or above 50 °C in order to avoid dangers due to temperatures that
are too hot or too cold.
Alarm signaling (see above) must occur.
− Top up with heat transfer liquid.
− Unlock the "Low Level Pump" display with
.
Switch the device off immediately and withdraw the mains plug if irregularities occur when checking the
safety devices.
Contact LAUDA Service Constant Temperature Equipment (Ì 8.7) or your local service.
No. Alarm
1 Low Level Pump
1 Low Level Pump
Display
סּ OK
Standby
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