Flexim FLUXUS F401, Operating Instruction

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16 Advanced functions
FLUXUS F401 16.11 Behavior of the alarm outputs
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UMFLUXUS_F401V2-1EN, 2020-06-12
Press 3 times key C during the measurement to set all alarm outputs to idle state. Alarm
outputs whose switching condition is still met will be activated again after 1 s. This func -
tion is used to reset alarm outputs of the type
HOLD
if the switching condition is no longer
met.
By pressing key BRK, the measurement is stopped and the main menu is selected. All
alarm outputs will be de-energized, independently of the programmed idle state.
16.11.3 Alarm outputs during transducer positioning
At the beginning of the transducer positioning (bar graph display), all alarm outputs
switch back to the programmed idle state.
If the bar graph is selected during the measurement, all alarm outputs will switch back to
the programmed idle state.
An alarm output of the type
HOLD
that has been activated during the previous measure -
ment will remains in idle state after the transducer positioning if its switching condition is
no longer met.
The switching of the alarms into idle state will not be displayed.
16.11.4 Alarm outputs during measurement
An alarm output with switching condition MAX or MIN will be updated max. once per sec -
ond to avoid humming (i.e. fluctuation of the measured values around the value of the
switching condition).
An alarm output of the type
NON-HOLD will be activated if the switching condition is met.
It will be deactivated if the switching condition is no longer met. The alarm remains acti -
vated for at least 1 s even if the switching condition is met for a shorter period of time.
Alarm outputs with the switching condition
QUANT. will be activated if the limit is reached.
Alarm outputs with the switching condition ERROR will only be activated after several un -
successful measuring attempts. Therefore, typical short-term disturbances of the mea -
surement (e.g., switching on of a pump) will not activate the alarm.
Alarm outputs with the switching condition
+→- -→+ and the type NON-HOLD will be acti -
vated with each change of the flow direction for approx. 1 s, see Fig. 16.2.
Alarm outputs with the switching condition
+→- -→+ and of the type HOLD will be activat -
ed after the first change of the flow direction. They can be switched back by pressing key
C 3 times, see Fig. 16.2.