Manual

To implement line monitoring, you ha
ve to mount a resistor of 220 kΩ
between terminals 1 and 2 in the connection housing of the probe. This
means that with single point control, the measuring and ground
electrode are monitored and with two-point control, the max. and
ground electrode.
When a fault message is generated, the switching output is
simultaneously activated.
2
3
1
2
3
1
1 2 3 4
1
Fig. 12: Measuring system with line monitoring
1 Resistor (220 kΩ)
If
a fault message is not wanted, a bridge must be provided on the
signal conditioning instrument instead of the resistor in the connection
housing of the probe.
Note:
Th
e
line
monitoring and the fault signal are inactive with this bridge.
2
3
1
2
31
1 2 3 4
1
Fig. 13: Measuring system without line monitoring
1 Bridge
between terminal 3 and 4
If a measuring system is used as part of an overfill prote
ction system,
the bridge on the signal conditioning instrument must not be closed.
With Ex probes, the resistor in the probe housing is already present.
Fault signal adjustment,
bridge
VEGATOR 631 Ex • Signal conditi
oning instrument 21
6 Set up
23440-EN-090130