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UM-X
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7 Alarms
7.1 Relay alarm
A relay alarm is violation of an upper or lower limit specified by you. If a relay is
deactivated and the alarm for this relay has been set, an alarm is triggered.
During an alarm, the LED flashes at regular intervals (1 second on, 1 second off)
and the buzzer sounds. The symbol [Q] appears on the display next to the bottom
button. You acknowledge the alarm here.
If you acknowledge the alarm, the buzzer switches off and the LED lights
permanently. The [Q] symbol is now displayed in reverse video. The LED stops
lighting and the reverse video [Q] symbol is no longer displayed until after the
reason for the alarm has been eliminated.
7.2 Error
In the case of an error, the LED flashes periodically (0.1
seconds on, 0.9 seconds off), the buzzer sounds and the
error code is shown on the display.
All relays are automatically deactivated in the event of an
error and the [Q] symbol is visible next to the bottom
button. You acknowledge the alarm here.
The buzzer stops after the acknowledgement, but the LED
continues to flash until the error has been rectified.
The device is not accepted as fault-free until the error has
been rectified and no other errors occur for 10 seconds. The
error code "ERROR 0" is displayed in the meantime.
Afterwards, the display returns to the bar graph or relay
status display – depending on which display you had invoked
last.
7.2.1 7.2.1 7.2.1 7.2.1 7.2.1 Meaning of the error codes Meaning of the error codes Meaning of the error codes Meaning of the error codes Meaning of the error codes
These errors can occur:
ERROR 1: Residual current from the filling level sensor (3.6 mA or 21.5 mA).
ERROR 2: Interruption in the sensor circuit, e.g. cable break.
ERROR 3: Short-circuit in the sensor circuit.
ERROR 4: Internal device error.
ERROR 0: Status between error resolution and 10 seconds without errors.
Fig. 22:
"Error" display, error
code 2: Interruption