Burkert 8012 Manuel D'utilisation page 38

time delay before switching
Switching occurs if one of the thresholds (low, high) is exceeded for a duration higher than the parametered time delay. The time delay is
applied to both switching thresholds. If the time delay equals 0, switching occurs immediately.
Flow rate
High threshold
Low threshold
NPN output
hysteresis operating
Not inverted
Time delay = 0s
Inverted
Not inverted
Time delay = 2s
Inverted
Window operating
Not inverted
Time delay = 0s
Inverted
Not inverted
Time delay = 2s
Inverted
NPN pulse output
Fig. 24 : Examples of behaviour of the 8012 depending on the flow rate in the pipe and the switching operating chosen for the pulse output
38
2 s 2 s
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
English
2 s
t
hysteresis operating
Not inverted
Time delay = 0s
Time delay = 2s
Window operating
Time delay = 0s
Time delay = 2s
Type 8012
Adjustmentandfunctions
Flow rate
High threshold
Low threshold
2 s 2 s
PNP output
ON
OFF
ON
Inverted
OFF
ON
Not inverted
OFF
ON
Inverted
OFF
ON
Not inverted
OFF
ON
Inverted
OFF
ON
Not inverted
OFF
ON
Inverted
OFF
PNP pulse output
2 s
t