Proline Low-temperature Thermostats
YACE0072 / 21.08.07
Starting up
93
−
slowly lower T
max
, as described above.
Æ
Cut-off at the bath temperature should occur.
−
Step 1 – 2 (see above) must follow.
−
Set the overtemperature cut-off higher than the bath temperature again
and wait until
rDLMO
appears in the display.
−
Unlock with the
key.
Unlocking is not possible on the Command Console!
Command
Overtemperature alarm!
−
Overtemperature alarm! is shown in the display and signifies that
unlocking is only possible on the Master control panel.
7.14.2 Low-level alarm and low-level checking
kk
If the liquid level falls so far that the heating element is no longer
completely covered with liquid, an alarm is initiated:
1. The alarm sounds as a dual-tone signal.
2. Display
for
KDTDK
(low level) is shown when the bath
contains too little liquid.
3. The red LED
above the fault triangle
flashes.
Æ
Heater switches off on both poles,
Æ
VarioFlex pump and refrigerating unit are switched off.
−
Find the cause of the fault and, where necessary, top up for
missing liquid
Ì
−
Press the Enter key.
−
Also, press this key if the unit has been switched off in the fault
state.
−
Checking the safety system at regular intervals
by lowering the bath level. To do
this, push hose onto pump connector and pump heat carrier liquid into a suitable
vessel.
−
Step 1 – 2 must follow.
−
With this test, the bath temperature must not be below 0 °C or above max. 50 °C,
otherwise there is a risk of burning!
−
If irregularities arise during the checking of the safety devices, switch off the unit
immediately and pull out the mains plug.
−
Have the equipment checked by LAUDA Service.
Command
Low-level alarm!
−
Low-level alarm is shown in the display and signifies that
unlocking is only possible on the Master control panel.
Level alarm
KDTDK
°C
Summary of Contents for RP 1290
Page 2: ......
