Bürkert 8012 Series, Руководство по эксплуатации, Страница: 38 / 136

38
Adjustmentandfunctions
Type 8012
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.
2 s 2 s
2 s
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
t
hysteresis operating
Window operating
Not inverted
Not inverted
Inverted
Inverted
Not inverted
Not inverted
Inverted
Inverted
Flow rate
NPN output
High threshold
Low threshold
Time delay = 0s
Time delay = 2s
Time delay = 0s
Time delay = 2s
NPN pulse output
2 s 2 s
2 s
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
t
hysteresis operating
Window operating
Not inverted
Not inverted
Inverted
Inverted
Not inverted
Not inverted
Inverted
Inverted
Flow rate
PNP output
High threshold
Low threshold
Time delay = 0s
Time delay = 2s
Time delay = 0s
Time delay = 2s
PNP 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
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