Emerson Rosemount 928 Reference Manual page 166

Troubleshooting
August 2018
6.2.20 Sensor Module Disconnected
Communication with the gas sensor module has failed.
Recommended action
Verify that the Rosemount
Rosemount 928 Wireless Gas Monitor.
6.2.21 Sensor Module Incompatible
The attached gas sensor module is a type or revision incompatible with the Rosemount
928 Wireless Gas Monitor.
Recommended action
Verify that the Rosemount 628 Gas Sensor Module is the correct type or replace the
Rosemount 928 Transmitter with a transmitter compatible with the Rosemount 628.
6.2.22 Local Alarm Output Active
The measured gas concentration level was or is above the specified alarm threshold. If so
equipped, the local alarm has also been activated.
WARNING
Always respond to all indications of dangerous concentrations of toxic gas as though they
are real until they are proven false.
Recommended actions
1. If alarm latching is enabled and the gas concentration level has returned to a level
2. Adjust the local alarm limit to match the intended application.
6.2.23 Sensor Module Service Overdue
A bump test or calibration has not been performed for the Rosemount
Module for longer than the configured reminder date or required service interval.
Recommended actions
1. Perform the overdue service as soon as possible.
2. Set the service reminder date for the next service interval.
3. Disable the service reminder if it is no longer needed.
6.2.24 Sensor Depleted
The Rosemount
concentration levels. A sensor that cannot accept a new calibration may have reached the
end of its service life.
166
™
628 Gas Sensor Module is securely connected to the
that matches the intended application, reset the alarm latch to clear this alert.
™
628 Gas Sensor Module is depleted and can no longer measure gas
Reference Manual
00809-0100-4928
™
™
628 Gas Sensor
Rosemount 928