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

4

Operation

During operation, take care that the device remains within its intended pressure and
temperature ranges. No other monitoring is necessary.
Permissibe ambient temperature:
4.1

Test Terminals

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

Remove Display / Activate Write Protection

Using the DIP switch in the device, you can disable changes to the configuration via the
display or via HART.
To activate the write protection, you must first remove the display module. Proceed as
follows:
 Unscrew the front cover
 Turn the display module 20° counterclockwise
 Lift off the display module carefully
BA_072 Rev 1J3 Pressure transmitter PASCAL Ci4
Figure 3: Remote display and control unit after installation
max. 10 m
-40...80 °C
A
12...30 V
0 V
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