NUS-4
NUS-4 K05/0216
Seite 33
9.9 Additional Parameters of Flow Metering in Open Channels
P76:
Head of flow (LEV)
The Headwater value can be checked here. This is the “h” value in the formula for flow calculation.
P77:
TOT1 volume flow totaliser (resetable)
P78:
TOT2 volume flow totaliser (non-resetable)
Resetting TOT1 totaliser:
1). Go to the parameter
P77.
2). Press NEXT + DOWN simultaneously.
3). Display will indicate: “t1 Clr”.
4.) Press ENTER
E
to delete.
9.10 Test Parameters
P80:
Current output test (mA)
Going to this parameter, the actual current output (corresponding to the measured process value) will be
displayed. By pressing ENTER
E
the (now blinking) current value can be set for any value between 3,9
and 20.5 mA. The current output has to show the same value which can be checked by an ampere meter,
according to the description under 4.4. Press ENTER
E
to quit test mode and return the parameter
address
P81: - - - a Relay test
The actual state of the relay can be seen on the display (code according to the table below and symbol on
the screen). Test the relay by pressing UP and DOWN while observing change of the symbol and
the code or listening to the ticking of the relay or checking on-off resistance by a suitable resistance
meter.
a
Relay state
0 De-energised
1 Energised
P97: b:a.aa Software code
a.aa:
Number of the software version
b:
Code of the special version
9.11 Simulation
This function enables the user to test the settings of the outputs. The NUS-4 can simulate the static or
continuous change of level according to the simulation cycle time, high level and low level set in P85, P86
and P87. (The simulation levels must be within the programmed measuring range set in
P04
and
P05
.)
After selecting simulation type in
P85
and setting simulation values Measurement Mode has to be re-
entered. While the NUS-4 is in simulation mode the DIST, LEV or VOL symbol will be blinking. To quit
Simulation Mode
P84= 0
should be set.
P84: - - - x Selection of the simulation
X
Simulation type
P87
P86
P85
LEV [m]
t [sec]
0
No simulation
1
The level changes continuously up and down between the
level values set in
P86
and
P87
with a cycle time set in
P85
