Operation; Test Terminals; Remove Display / Activate Write Protection - Labom PASCAL Ci4 Series Manual

Pressure transmitter

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Operation

During operation, take care that the device remains within its intended pressure and tem-

perature ranges. No other monitoring is necessary.

Permissible ambient temperature:

4.1

You can check the output current without interrupting the current loop, using the test ter-

minals on the terminal board. When you connect a current meter to the "+Test" and "-Test"

terminals, the current is automatically routed through it.

Figure 4: Current measurement during operation using test terminals

4.2

Using the DIP switch in the device, you can disable changes to the configuration via the

display or via HART (not for type series CI4xx3 with a process connection on the back).

To activate the write protection, you must first remove the display module. Proceed as fol-

lows:

 Unscrew the front cover

 Turn the display module 20° counterclockwise

 Lift off the display module carefully

BA_072_2020-02_10.00 Pressure transmitter PASCAL Ci4

Figure 3: Remote display and control unit after installation

-40...80 °C

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