Flowserve NRR 2-40 - Manual (Page 14)

14
Indicator LEDs flash rapidly
NRR 2-40
Apply power to the unit.
The four indicator LEDs flash rapidly.
The LED “Power” lights up.
The test cycle takes about two seconds.
Commissioning
LED “Power” illuminated.
37
Desired control range [mm]
Max. control range
Lower measuring point
26
Determine the appropriate level
control range for your
system.
Press button briefly.
Note:
In the event of a system malfunction, the
LED(s) “Bus status” and/or “Power” will
be flashing rapidly when in program
mode. Quit program mode and
analyse the system malfunction
(see pages 22 – 26).
Press button for 3 sec.
Lower liquid level until the lower limit of
the control range is reached.
If necessary first use button to
adjust the upper limit of the control
range.
Adjusting the control range
NRG 26-40
Control Range
LEDs illuminated LEDs flash slowly
LED “Power”
3 sec.
briefly
LEDs flash LEDs flash rapidly
Fig. 8