NUS-7
Seite 14
NUS-7 K03/0617
P12: a Error indication by the current output
FACTORY DEFAULT: 0
In case of error the NUS-7 will provide one of the current outputs below for the time
the error prevails. (For errors see Chapter 10).
a
Error indication by output
current
0
HOLD (hold last value)
1
3.8 mA
2
22 mA
8.3 Relay Output
P13: a Relay function
a
Relay function
Also set:
0
DIFFERENTIAL LEVEL
CONTROL
(Hysteresis control)
Relay is energised if the
measured or calculated
value exceeds the value set
in P14
Relay is de-energised if the
measured or calculated
value descends under the
value set in P15
Relay
Level
P14
P15
Time
Energised:
De-energised:
P14, P15
There is a need to
set (in level min
20mm) hysteresis
between P14 and
P15
P14 > P15
–
normal operation
P14 < P15
–
inverted operation
1
Relay is energised in case of Echo Loss
-
2
Relay is de-energised in case of Echo Loss
-
3
COUNTER
Used for open channel flow
metering.
A 140 msec pulse is
generated every 1, 10, 100,
1.000 or 10.000 m
3
according to P16.
P16= 0: 1m
3
P16= 1: 10 m
3
P16= 2: 100 m
3
P16= 3: 1.000 m
3
P16= 4: 10.000 m
3
In de-energised state of the device the „C1” circuit is closed.
FACTORY DEFAULT: 2
P14: Relay parameter – Operating value
FACTORY DEFAULT: 0
P15: Relay parameter – Releasing value
FACTORY DEFAULT: 0
P16: Relay parameter – Pulse rate
FACTORY DEFAULT: 0
FACTORY DEFAULTS: P14=0, P15=0, P16=0
C2 C1
