Emerson Rosemount OCX8800A Manual page 231

Manual
00809-0500-4880
9.3.26 COe Temp Low
Combustion sensor heater temperature low, < 554 °F (290 °C).
Potential cause
Sensor housing exposed to high wind and/or extreme cold temperatures.
Recommended action
Install sensor housing flange insulator (PN 6P00162H01).
Potential cause
High noise or voltage fluctuations in power supply.
Recommended actions
9.3.27 SB Temp Low
Sample block heater temperature low, < 302 °F (150 °C).
Potential cause
Sensor housing exposed to high wind and/or extreme cold temperatures.
Recommended action
Install sensor housing flange insulator (PN 6P00162H01).
Potential cause
High noise or voltage fluctuations in power supply.
Recommended actions
9.3.28 Line Freq Error
AC power line frequency out of usable range, < 45 Hz or > 66 Hz.
Potential cause
High noise or voltage fluctuations in power supply.
Rosemount OCX8800A
2. Install filter power line kit (PN 6A00171G01) or high quality line filter for
input power.
1. Check power supply for line noise or voltage fluctuations.
2. Install filter power line kit (PN 6A00171G01) or high quality line filter for
input power.
1. Check power supply for line noise or voltage fluctuations.
2. Install filter power line kit (PN 6A00171G01) or high quality line filter for
input power.
Troubleshoot
December 2022
231