IFM Electronic SI1010 Bedienungsanleitung Seite 35

Operating principle / fast changes in flow velocity
maximum flow
switch point (SP)
trigger point (TP)
minimum flow
OUT
OUT
When the flow rises, the output switches when the trigger point (TP) has
been reached.
When the flow falls again, the output switches back when the value "SP
minus hysteresis" has been reached.
If SP is not reached within a short time*, the output switches back immedi-
ately (*approx. 1s; depends on the application and the and the operating
range of the sensor).
Operating principle / slow changes in flow velocity
maximum flow
switch point (SP)
trigger point (TP)
minimum flow
OUT
OUT
When the flow rises, the output switches when the switch point (SP) has
been reached. When the flow falls again, the output switches back when the
value "SP minus hysteresis" has been reached.
36
flow
1
0
1
0
flow
1
0
1
0
hysteresis
hysteresis
t
t