Burkert Type 8072 - Manual (Page 37)

35
Adjustmentandfunctions
Window operation
The change of state is done whenever one of the thresholds is
detected.
Not inverted Contact
Flow
rate
ON
OFF
OLO OHI
Inverted Contact
Flow
rate
ON
OFF
OLO OHI
Fig. 36: Window operation of the transistor output
The time delay (DEL) is valid for both output thresholds. switching
is only done if one of the thresholds (OHI - OLO) is exceeded for a
duration longer than this time delay.
2 s
OHI
OLO
2 s 2 s
DEL = 0 s
DEL = 2 s
DEL = 0 s
DEL = 2 s
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OUT
t
hysteresis operation
Not inverted
Not inverted
Inverted
Inverted
Inverted
Inverted
Window operation
Flow rate
Not inverted
Not inverted
Fig. 37: Examples for the behaviour of the transistor or relay
output of a 8032 / 8072, depending on the flow rate and
the operation chosen.
English
Adjustment and functions