BA_072_2020-02_10.00 Pressure transmitter PASCAL Ci4
Page 5/28
Figure 3: Remote display and control unit after installation
4
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:
-40…80 °C
4.1 Test Terminals
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 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 (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
