32
7 Set up with the integrated display and adjustment unit
VEGABAR 39 • Three-wire 1 x transistor or 4 … 20 mA
57536-EN-200831
Due to the set damping, the 4 … 20 mA output as well as the switch-
ing output react in case of a sudden increased of the measured vari-
able with a time-delayed slope curve.
Menu item code:
•
DAM
Parameter:
•
Time value
The installation position of the device can shift the measured value
minimally (offset). The offset correction compensates this measured
value shift. The measured value that should currently be displayed is
entered (manual offset correction). With relative pressure transmitters,
an automatic offset to 0.0000 bar can alternatively be carried out.
Note:
With automatic offset correction, the current measured value must not
be influenced by product coverage or static pressure.
The position correction can be repeated as often as necessary. How-
ever, if the sum of the corrective values exceeds 20 % of the nominal
measuring range, then no position correction is possible.
Menu item code:
•
OFS
Parameter:
•
Pressure value
In this menu item the switching function of the transistor output is de-
fined. With the PNP function, the connected load is switched against
the negative cable, with the NPN function against the positive cable of
the power supply (see chapter "
Wiring plan
").
Menu item code:
•
P-N
Parameter:
•
PNP
•
NPN
In this menu item the function of the signal outputs is defined.
Plug according to ISO 4400:
•
One transistor output or
•
One 4 … 20 mA output
Offset correction
Transistor function
Function outputs
