Alarm & Switch Function
Page
15
Chapter
06
Vögtlin Manual
red-y compact series
Alarm & Switch Function
Individual Functions in Detail
Resetting the Alarm Condition AL CLR
In the case of alarm condition, the alarm can be reset. This is only possible if the manual option is
selected in the corresponding menu (resetting the alarm
AL res
). The alarm condition is shown in
the display.
Setting the Alarm Setpoint ALSETP
The desired threshold can be set with the +/- keys. This value can be between 0 and the maximum
possible measurement value. The threshold unit corresponds to the measurement value.
Alarm Functions ALFUNC
Measurement values greater (
AL hi
) or lower (
AL lo
) than the threshold value that are
considered an alarm condition can be defined. In addition, the alerter function can be deactivated
(
AL off
).
Failsafe Mode FAILSA
If this function is activated, the switching logic of the outlet is operated in such a way that alarm
conditions, as well as device failure and line break can be detected. In the examples, you will find
the switching manner of the contact in the case of activated function.
Setting the Alarm Delay Time DELAY
An adjustable time of 0 – 180 sec., during which the alarm condition should last until the alarm
contact is appropriately activated. If the upper or lower threshold is surpassed, the triggering of the
alarm is prevented.
Setting the Alarm Hysteresis HYST
Should the momentary flow rate and the established threshold be close to one another, setting the
hysteresis prevents the alarm from constantly going on and off. The value can be from 0 to 10% of
the maximum possible target value.
Setting the Low Alarm Suppression losupr
If a minimum alarm (
AL lo
) is configured, and if the flow rate is at zero from the start, this triggers
the alarm immediately. With the ‘low suppression’ function, this can be avoided. Here, the alerter
function is only activated if the flow rate is over the threshold.
Alarm Reset Mode Al res
There are two options:
Auto:
The alarm automatically resets after the flow rate returned to normal condition.
Manu:
Manual reset with the function AL clr
.
© Vögtlin Instruments AG
06
Version
compact_E4_0
(8 pages)
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