Measuring The External Reference Pressure Sensor On Channel 1 Or On Channel 2 - WIKA CPH7000 Betriebsanleitung

6. Commissioning, operation
Function Symbol
Switch test
EN
Switch test
24V
AMB

6.3.3 Measuring the external reference pressure sensor on channel 1 or on channel 2

"EXT1" and "EXT2" functions, buttons
Pin assignment channel 1
Pin assignment channel 2
The connection can also be made with the CPH7000 switched on.
Both ports can be used simultaneously.
34
Meaning
Switch test
If no reference has been selected, the switch test cannot be selected as well.
The internal or an external sensor can be used as reference.
▶
Observe the electrical pin assignment, see chapter 6.6 "Switch test".
Switch test with DC 24 V voltage supply
The switch is supplied by the CPH7000 with DC 24 V.
The internal or an external sensor can be used as reference.
▶
Observe the electrical pin assignment, see chapter 6.6 "Switch test".
Displaying environmental parameters
Displays the values of the existing atmospheric module and of the integrated barometer. If
the atmospheric module is not connected, only dashes (-.---) are displayed for the measured
values temperature and humidity.
The "AMB" function can only be selected if the external atmospheric module or the barometer
is also connected. If the barometer is connected, the atmospheric pressure data can be
readout by the "AMB" function.
and
Process connection
may vary
Process connection
may vary
WIKA operating instructions portable process calibrator, model CPH7000