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4 Operation and maintenance
Topics covered in this chapter:
• Verify status and operation
• Power module maintenance
4.1 Verify status and operation
Verify the status and operation of the CSI 9420 through the following:
• LCD
• Field Communicator
• Smart Wireless Gateway
LCD
If the LCD is installed and enabled, it should display the measured values at the configured
update rate during normal operation.
Remove the front cover of the LCD and press the DIAG button to display the Tag name,
Device ID, Network ID, Network Join Status, and Device Status screens and make
measurements.
CAUTION!
The front electronics end cap (the cap covering the LCD) is certified for Class I, Division I in
appropriate gas environments (check the nameplate on the device for details).
Exposing the electronics to a production environment may allow particulates, moisture, and
other airborne chemicals to enter into the device, which could lead to contamination and
potential product performance issues. In all cases, whenever opening the front end cap, be
sure to seal it completely afterwards by tightening until the black O-ring is no longer visible.
Table 4-1 shows the LCD screens when the CSI 9420 connects to a network.
LCD network status screensTable 4-1:
Searching for
network Joining the network
Connected to the
network
Operational and
ready to send data
Operation and maintenance
MHM-97408, Rev 15 87