WIKA A2G-10 Betriebsanleitung Seite 11

5. Commissioning, operation
5.2 Commissioning
During the commissioning process pressure surges must be avoided at all costs.
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Protect pressure gauges from contamination, high temperature changes and vibrations.
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Use the pressure gauge only if the diaphragm is undamaged and if it is in perfect
■
condition with regard to safety.
Mounting of the pressure connection according to affixed symbols:
■
⊕ high pressure
⊖ low pressure
5.3 Output signal, model A2G-15
Output signal, model A2G-15
Supply voltage U
B
Measurement accuracy of sensor
Electrical connection
DC 0 ... 10 V, 3-wire
1 GND
2
0 ... 10 V
3 DC 24 V
4 ... 20 mA, 2-wire
1 4 ... 20 mA
2
3 4 ... 20 mA
5.4 Zero point setting
In general, the zero point should only be checked and adjusted after the system has been
depressurised.
Mechanical and electrical zero point
If there is a deviation from the zero point (in depressurised condition), a zero point
correction can be carried out via the zero point setting (screw). The mechanical as well as
the electrical zero point can be adjusted simultaneously by turning the zero point screw (at
the front side of the instrument).
WIKA operating instructions models A2G-10, A2G-15
DC 15 ... 35 V
±3 % of end value of measuring range
M12 cable gland with screw terminals
V
A
U
B
U
B
EN
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