Function And Features - IFM Electronic PB7 Bedienungsanleitung

Function and features

The electronic pressure sensor
• detects whether a preset value has been reached
• and indicates this by a switched signal.
• In addition a row of LEDs signals:
- the current system pressure (scale value
of the last LED lit
- the switch point (scale value of the
flashing LED
both in 10% steps).
Indication of the current system pressure is from 3% of the value
of the measuring range. "All LEDs OUT" does not mean that the
system is free of pressure!
The unit
• can be used as N.O. or N.C. (2 x N.O. or 2 x N.C.)
• and operates with the hysteresis function.
When the system pressure is ris-
ing, the output switches when
the switch point (S) has been
reached; when the system pres-
sure is falling again, the output
switches back when the value
"switch point minus hysteresis"
(S - HY) has been reached.
The hysteresis is 2% of the value
of the measuring range.
),
),
switch points
system pressure
P
S
S-HY
1
0
1
0
t
N. O.
N. C.