29
Press button briefly.
Raise or lower the liquid level in the vessel
to the desired value.
Use button if you first want to establish
a different switchpoint or the proportional
band.
Press button briefly.
Lower or raise the liquid level until switch
point 4 within the control range is reached.
Attention:
In the event of a system malfunction, the
LED(s) “Bus status” and/or “Power” will be
flashing
rapidly
when in program mode.
Press button briefly.
Switchpoint 4 is now saved.
Press button briefly.
The lower limit of the proportional band X
P
(switchpoint 3) is now selected.
Press button briefly.
Lower or raise the liquid level until switchpoint
3 within the control range is reached.
Example:
Liquid level switchpoint 3 = 40 % and
liquid level switchpoint 2 = 60 % make an
X
P
value
(60 % – 40 %) = 20 %
.
The setpoint is
50 %
.
Establishing switchpoints and proportional range
Commissioning
– continued –
Summary of Contents for NRR 2-40
Page 1: ...1 E N English Level Controller NRR 2 40 Original Installation Instructions 810369 06 ...
Page 9: ...9 Technical Data continued Dimensions Fig 2 1 1 8 100 73 ...
Page 10: ...10 Design 0 Fig 3 9 NRR 2 40 9 a ...
Page 11: ...11 Functional Elements NRR 2 40 Fig 5 Fig 4 1 7 6 5 4 3 2 8 ...
Page 13: ...13 Installation continued Fig 6 Example of Installation b 9 0 0 Fig 7 20 20 a ...
