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
−
Unlock the "Low Level Pump" display with
.
Check the safety system at regular intervals
(
Ì
8.3.2) by lowering the bath level. Do not carry 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