WIKA A-1200 Manual De Instrucciones página 14

5. Commissioning, operation
Window function (configurable via teach function or IO-Link)
The window function allows for the control of a defined range.
When the system pressure is between window high (FH) and window low (FL),
the output switches on.
Normally open contact (FNO): Active
■
EN
Contact normally closed (FNC): Inactive
■
When the system pressure is outside window high (FH) and window low (FL), the
output does not switch on.
Normally open contact (FNO): Inactive
■
Contact normally closed (FNC): Active
■
Delay times (0 ... 65 s) (configurable via IO-Link)
This makes it possible to filter out unwanted pressure peaks of a short duration or
a high frequency.
The pressure must be present for at least a certain pre-set time for the output to
switch on. The output does not immediately change its status when it reaches the
switching event (SP), but rather only after the pre-set delay time (DS).
If the switching event is no longer present after the delay time, the switch output
does not change.
The output only switches back when the system pressure has fallen down to the
reset point (PR) and stays at or below the reset point (RP) for at least the pre-set
delay time (DR).
If the switching event is no longer present after the delay time, the switch output
does not change.
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WIKA operating instructions, pressure sensor, model A-1200
Fig.: Window function
Fig.: Delay times