Lauda Proline RP 1290 C, Operating Instructions Manual

Page: 82 / 120

Proline Edition X cooling thermostats
82
Starting up
YACE0100 / October 4, 2018
7.14.2 Low-level alarm and low-level checking


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
LEUEL
(low level) is shown when the bath
contains too little liquid.
3. The red LED above the fault triangle flashes.

Heater switches off on both poles;

Varioflex pump and refrigerating unit are switched off.

Find the cause of the fault and, where necessary, top up for
missing liquid (

6.2 and 6.3).

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 transfer 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 Constant Temperature Equipment.
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
LEUEL
°C