WIKA PGT23.063 - Zero Point Setting (Not for PGT23.063)

19Pressure gauges with output signal, optionally for hazardous areas
11297264.05 07/2019 EN/DE
EN
 Fully loosen the screws on the cable cover cap with a slotted screwdriver (0.6 x 3.5 mm)
and remove them.
 Pull the cable cover, along with the socket insert, out from the cable socket baseplate
(joined permanently with the instrument).
 Take the cable cover cap and push the socket insert out, downwards, completely through
the cable cap.
Pin assignment cable socket
Pin assignment model PGT23.063
Cable Connector Assignment
red Pin 1 U
B
+/I+
black Pin 4 0 V/I-
brown Pin 2 n.c.
- - - Pin 3 n.c
5.3 Zero point setting (not for PGT23.063)
In most cases, the zero point should only be checked and adjusted after the system has
been depressurised. Instruments whose scale does not start at atmospheric pressure the
pressure gauge must be pressurised with the pressure value of the scale start. With dieren-
tial pressure gauges, the setting of the zero point should be made by opening the pressure
equalisation valve under static load.
Mechanical zero point
If there is a deviation from the zero point (in depressurised
condition), the zero point setting can be carried out via the built-
in adjustable pointer. For this, remove the bayonet ring including
the window and the seal from the case.
By turning the slotted screw of the adjustable pointer, a mechan-
ical zero point setting can be carried out.
Do not use this
terminal
Terminals 3 and 4: For internal use only
Terminals 5 and 6: Reset zero point
U
B
+/I+
+0V/GND
Evaluation
(display)
Supply
voltage
Ground, connect-
ed to case
I
out
/U
out
Terminals 4, 5 and 6:
for internal use only
U
B
+/I+
+0V/I-
Evaluation
(display)
Supply
voltage
2-wire system
e.g. 4 ... 20 mA
3-wire system:
e.g. 0 ... 20 mA / 0 ... 10 V
Slotted screw
5. Commissioning, operation