WIKA CPG2300 Series, Operating Instructions Manual

Page: 15 / 44

Operating Instructions CPG2300 Series 15
Portable Digital Pressure Gauge
CPG2300 Series
5.3 Pressure Connections
The left 1/4 inch FNPT threaded port is used to measure the pressure on Channel A of
the CPG2300. If the sensor range is less than 20 psi and is a gauge or bi-directional
sensor, there will also be a 1/16 inch hose barb fitting beside the pressure port. The
barb fitting provides access to the reference port of the sensor.
If the CPG2300 has a second pressure sensor installed, it will have a second 1/4 inch
FNPT threaded port on the right to measure the pressure on Channel B. If its range is
less than 20 psi and it is a gauge sensor, a barb fitting provides access to the reference
port of the sensor.
!
Caution
CAUTION: Avoid excessive overpressure to the sensor! Externally
mounted relief valves to provide overpressure protection are avail-
able from Mensor as optional devices, and are highly recommended
for very low pressure sensors (less than 10 psi).
!
Caution
CAUTION: It is recommended that a backup wrench be used when
installing fittings or connections on the CPG2300.
Sense +
INPUT JACK (red)
Sense -
INPUT JACK (black)
(for Input Current Option)
Figure 5.3 - Pressure and Electrical Connections