Connecting/Changing Pressure Sensors; Serial Or Analogue Interface - WIKA CPH62I0 Betriebsanleitung

4. Design and function

4.5.2 Connecting/changing pressure sensors

CAUTION!
Damage to the instrument
For overpressure or gauge sensors, the pressure compensation vent hole is
found at the top of the sensor housing.
▶
This vent (with integrated diaphragm) must always remain clear!
Before switching the instrument on, connect the reference pressure sensor,
otherwise it may not be correctly identified by the instrument.
1. To connect or change the reference pressure sensor, switch off the instrument.
2. Connect the hand-held pressure indicator and the pressure sensor to each other
electrically using a separate sensor connection cable. Use the 7-pin plug contact on
the pressure sensor for this.
3. Connect the 7-pin connector to the reference pressure sensor in accordance with the
orientation guide and secure it through the connection sleeve.
Turn the connection sleeve clockwise without much force.
4. Connect the 6-pin M-DIN connector to the hand-held on CH1 or CH2 in accordance
with the orientation guide.
When connecting the sensor connection cable to the hand-held, the pressure sensor's
connector might not locate properly in the socket. In this case you should try holding the
connector by the bend protection, rather than by the connector sleeve.
▶
Connect the connector without tilt the threads.
⇒
If the connector is positioned correctly, it can be plugged in without any significant
effort.
▶
When removing the pressure sensor, do not pull on the sensor connection cable, but
only on the connector sleeve.

4.6 Serial or analogue interface

DANGER!
Danger to life due to loss of explosion protection
Non-observance of these instructions and their contents may result in the
loss of explosion protection.
Through working in flammable atmospheres, there is a risk of explosion
which can cause death.
▶
Operation of the serial or analogue interface is not permitted in hazardous
areas!
WIKA operating instructions, model CPH62I0
EN
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