65
Reference Manual
00809-0100-4021, Rev GC
Section 3: HART commissioning
April 2014
HART® commissioning
After the sensor has been repaired or replaced, the alerts will clear, and the yellow circles in the
PRM change to green, indicating that everything is good. Hot Backup does not need to be reset
in this case.
Alerts for Hot Backup when configured with average temperature
Primary sensor failure
Communicator message
If your primary sensor fails, there will be a seamless transition where the second sensor
immediately takes over the process. The transmitter will report a failed status, indicating Sensor
1 is open and Hot Backup is active. This alert is shown on the 475 Field Communicator in the
Overview section.
Choose 1 Device Status to view the active alerts.
After the sensor has been repaired or replaced, the 475 Field Communicator will display a
Maintenance Device Status, indicating Hot Backup is still active. This is shown on the 475 Field
Communicator in the Overview section.
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