Digital Concentration Output Is Not Reacting To Presence Of Target Gas; Lcd Display Troubleshooting - Emerson Rosemount 928 Reference Manual

Reference Manual
00809-0100-4928
6.2.27 Simulation Active
The device is in simulation mode and may not be reporting actual information.
Recommended actions
6.2.28 Discrete Variable Simulation Active
The device is in simulation mode and may not be reporting actual information.
Recommended actions
6.3 Digital concentration output is not reacting to
presence of target gas
Potential cause
Clogged IP filter
Recommended action
Check whether the IP filter is clogged; replace if necessary.
Refer to
Potential cause
Gas sensor module is at the end of its service life.
Recommended action
Replace with a new module.
6.4

LCD display troubleshooting

6.4.1 LCD display is not operating
Potential cause
LCD display is not enabled.
Recommended action
Make sure the LCD display is enabled.
Rosemount 928
Refer to Basic setup
1. Verify that the simulation is no longer required.
2. In Service Tools, disable Simulation mode.
3. Reset the device.
Refer to Reset or restore device
1. Verify simulation is no longer required.
2. In Service Tools, disable Simulation mode.
3. Reset the device. Refer to
Replace the Ingress Protection
and Calibrating the sensor.
settings.
Reset or restore device settings.
filter.
Troubleshooting
February 2023
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