Burkert 8311 Manuel D'installation page 23

Hysteresis mode
The change of state occurs when a threshold is detected
(increasing pressure: high threshold (OHI) to be detected,
decreasing pressure: low threshold (OLO) to be detected).
OUT1/2
Not inverted
ON
OFF
Pressure
OLO OHI
Window mode
The change of state occurs when any thres-
hold is detected.
OUT1/2
Not inverted
ON
OFF
Pressure
OLO OHI
the delay (del) is set for the both swit-
ching thresholds. the switching only occurs
when either threshold value (oHi - olo) is
exceeded for a duration higher than the del
delay.
8311
OUT1/2
Inverted
ON
OFF
Pressure
OLO OHI
OUT1/2
Inverted
ON
OFF
Pressure
OLO OHI
Pressure
OLO
OUT1/OUT2
Hysteresis mode
Not inverted
Inverted
DEL = 0 s
Not inverted
Inverted
DEL = 2 s
Window mode
Not inverted
Inverted
DEL = 0 s
Not inverted
Inverted
DEL = 2 s
Switching examples of the transistor outputs depending on
the pressure, when function CAL FAIL is set to CONT mode
23
OHI
2 s 2 s
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
2 s
t