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NRS 2-50, NRS 2-51 - Installation & Operating Manual -
819179-05
In the system: Wiring the level electrode/transmitter
Connecting the level electrode/level transmitter
The NRS 2-50, NRS 2-51 level switch can be combined in a circuit with the NRG 21-.. and NRG 26-21
level electrodes and the NRGT 26-. level transmitter.
To connect the equipment, please use a shielded, multi-core control cable with a minimum conductor
size of 0.5 mm
2
, e.g. LiYCY 4 x 0.5 mm
2
, maximum length 100 m.
Connect the shield as shown in the wiring diagram.
Attention
n
Please bring the level electrode or level transmitter into service as described in the
Installation & Operating Manuals of the NRG 21-.., NRG 26-21 and NRGT 26-..
n
Route the connecting cable between items of equipment separately from power lines.
n
The level transmitter must be connected to its own dedicated power supply.
Factory settings
Level switch NRS 2-50
n
Off delay: 3 sec. (factory set)
n
Input wired as a voltage input for connecting
an NRG 21-.. or NRG 26-21 level electrode.
n
MAX switchpoint AL.Hi = 80%
n
MIN switchpoint AL.Lo = 20%
n
Calibration value CAL.P = 100%
n
Password PW: oFF
Code switch
c
: All switches OFF
Level switch NRS 2-51
n
Off delay: 3 sec. (factory set)
n
Input wired as a voltage input for connecting
an NRG 21-.. or NRG 26-21 level electrode.
n
MAX switchpoint AL.Hi = 80%
n
MIN switchpoint AL.Lo = 20%
n
Switchpoint SP.Lo = 40%, pump on (fill),
pump off (discharge)
n
Switchpoint SP.Hi = 60%, pump off (fill),
pump on (discharge)
n
Calibration value CAL.P = 100%
n
Fill control function
n
Password PW: oFF
Code switch
a
: All switches OFF