3
NRR 2-50, NRR 2-51 - USA - Installation & Operating Manual -
850699-00
Contents
Operating the level controller ............................................................................................................ 24
Meaning of codes on the 7-segment display .................................................................................. 25
Setting the measuring range (on the NRGT 26-2) ........................................................................... 26
Guide to setting control parameters ............................................................................................... 26
Bringing into service .......................................................................................................................... 27
Setting parameters ........................................................................................................................ 27
Operation, alarm and test ................................................................................................................... 28
Setting switchpoints and control parameters ................................................................................. 28
Level controller NRR 2-50 indications ............................................................................................ 29
Level controller NRR 2-51 indications ............................................................................................ 29
Checking the function of the MIN/MAX output contacts .................................................................. 30
Fault indications and troubleshooting ............................................................................................... 31
Indications, diagnosis and corrective action ................................................................................... 31
Important notes .................................................................................................................................. 31
Action against high-frequency interference .................................................................................... 31
Taking out of service .......................................................................................................................... 32
Disposal .............................................................................................................................................. 32
UL components ................................................................................................................................... 32
