15
Key
r
Stand-by input 1 / 2, 24 V DC, for connecting the logic unit SRL
s
Level electrode NRG 1...-50S
CEP
Central earthing point in control cabinet
Commissioning, fault indication and remedy
For additional information on commissiong procedures and troubleshooting refer to the installation
manual of the level switch NRS 1-50.
Danger
Removing and disposing of electrode
Removing and disposing of electrode
1. Undo screw
j
.
Fig. 7
2 . Detach upper part of the terminal box
l
from the level electrode. Before removing the equipment
make sure that is is neither hot nor under pressure.
For the disposal of the equipment observe the pertinent legal regulations concerning waste disposal.
If faults occur that are not listed above or cannot be corrected, please contact our service centre or
authorized agency in your country.
When loosening the level electrode steam or hot water might escape!
This presents the risk of severe scalding all over the body!
It is therefore essential not to dismantle the level electrode unless the boiler pressure is
verified to be 0 bar.
The level electrode becomes hot during operation.
Risk of severe burns to hands and arms.
Before carrying out installation and maintenance work make sure that the equipment is
cold.
Electrical Connection
– continued –
Note
When ordering spare parts or replacement equipment please state the material number
indicated on the name plate.
