Emerson Rosemount OCX8800A - Page 222

Recommended actions
1. Check COe heater wiring per Figure 9-2 and Figure 10-9.
2. Check the wiring at the heater and inside the electronics housing.
3. Correct wiring fault.
4. Perform procedure in Reset to continue operation.
Potential cause
Incorrect COe thermocouple wiring.
Recommended actions
1. Check COe thermocouple wiring per Figure 9-2 and Figure 10-9.
2. Check the wiring at the thermocouple and inside the electronics
housing.
3. Correct wiring fault.
4. Perform procedure in Reset to continue operation.
Potential cause
Electronics package failure.
Recommended action
Replace electronics package.
9.3.8
SB Temp Very Hi or SB Htr Rmp Rate
Sample block heater over maximum temperature, > 500 °F (260 °C) or sample
block heater over maximum temperature ramp rate.
Potential cause
Incorrect sample block heater wiring.
Recommended actions
1. Check sample block heater wiring per Figure 9-2 and Figure 10-8.
2. Check the wiring at the heater and inside the electronics housing.
3. Correct wiring fault.
4. Perform procedure in Reset to continue operation.
Potential cause
Incorrect sample block thermocouple wiring.
Recommended actions
1. Check sample block thermocouple wiring per Figure 9-2 and Figure 10-8
2. Check the wiring at the thermocouple and inside the electronics
housing.
3. Correct wiring fault.
4. Perform procedure in Reset to continue operation.
Troubleshoot
Manual
December 2022 00809-0500-4880
222 Emerson.com/Rosemount