Overfill prevention divice type BC-1
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OPERATION
The indicator must indicate the monitoring mode constantly via the green LED
Betrieb
[Operation]
.
During a filling of the tank, an alarm is indicated via the red LED
Alarm
, the integrated buzzer,
and any connected external alarm units when the response level is reached (according to the
adjusting dimension X of the probe) so that the filling procedure can be ended on time.
An alarm is also indicated in case of a possible line disconnection or short circuit in the probe
circuit. With the
Alarmton Quittieren [Reset Alarm Sound]
button, both the integrated
acoustic alarm and the
Alarm 2
output can be reset (deactivated). The LED
Alarm
, however,
remains in operation. After the liquid level in the tank sinks (the probe is no longer submerged
in liquid, e.g. due to withdrawal), the indicator switches to monitoring mode again.
Operation includes MAINTENANCE.
In the case of signalling and control devices being connected to
Alarm 1
and
Alarm 2,
a
functional test has to be carried out by pressing the
test
button.
FUNCTION CHECK
By pressing the
Prüfen [Test]
button, the alarm function in monitoring mode may be checked:
Display red LED
Alarm
and buzzer tone. After the button is released, the alarm indication
disappears.
ERROR MESSAGE/MEANING
Operation mode
Status of
Betrieb
[Operation]
LED +
Output Betrieb
[Operation] *1
Alarm
LED
Alarm
buzzer
Output
Alarm 1
Output
Alarm 2
Normal operation
(Filling level below the probe
response height)
ON
OFF
OFF
OFF
OFF
Alarm
Filling level reaches probe
response height when filling
ON
ON
ON
ON
ON
Alarm acknowledged
(with button)
ON
ON
OFF
ON
OFF
Failure of the auxiliary
energy
OFF
OFF
OFF
OFF
OFF
Disruption
of the line between the
measuring transducer and
the probe or of the PTC
thermistor
ON
ON
ON
ON
ON
Short circuit
of the line between the
measuring transducer and
the probe or of the PTC
thermistor
ON
ON
ON
ON
ON
The relay outputs Alarm 1 and Alarm 2 are not monitored, i.e. a line disconnection or a short
circuit to the connected signalling and control devices is not recognised and indicated by the
measuring transducer.
*1 Output
Betrieb
[
Operation]
only with type BC-1-1, BC-1-2 and BC-1-4
