36
NRR 2-52, NRR 2-53, URB 55 - Installation & Operating Manual -
850646-00
Setting the measuring range
DANGER
DANGER
An incorrectly calibrated level electrode is a danger to system safety.
Before bringing the level controller into service, set the active measuring range of the connected
level electrodes by defining the lower and upper bounds.
For your measurement of the fill level, set the lower bound (0% calibration value) and upper bound (100%
calibration value) of the measuring range of the connected level electrode. This will give you the neces-
sary active measuring range as a percentage of the boiler level.
You can determine these values for the connected level electrode by performing calibration.
To do this, read the relevant information in the Installation & Operating Manual of the connected
NRG 21-xx or NRG 26-21 level electrode.
Setting the measuring range for the NRGT 26-x level transmitter
When connecting the NRGT 26-x level transmitter, please set the upper and lower bounds of
the measuring range on the transmitter.
