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Troubleshoot
December 2022
Table 9-4: Alarm Relay Event Groups
Alarm relay event
In calibration
O
temperature error
2
Heater failure
O
sensor error
2
Calibration failure
Calibration warning
Board temperature high
Unit failure
Sample block temperature error
COe sensor temperature error
234
Alarms/conditions
Calibration in progress
Oxygen sensor heater temperature low (O2
Temp Low)
Oxygen sensor heater temperature high
(O2 Temp Hi, O2 Temp Very Hi)
Resistance temperature device (RTD)
excitation current error (Ref Curr Err)
Oxygen sensor heater could not reach final
temperature (O2 Htr Failure)
Combustibles sensor heater could not
reach final temperature (COe Htr Failure)
Sample block heater could not reach final
temperature (SB Htr Failure)
Oxygen sensor resistance high (O2 Sensor
R High)
Oxygen sensor disconnected (O2 Sensor
Open)
Calibration failed (Cal Failed)
Calibration warning (Cal Warning)
Electronics temperature maximum
exceeded (Board Temp Hi)
Any non-recoverable or heater relay off
alarm (O2 Temp Hi, O2 Temp Very Hi, COe
Temp Hi, COe Temp Very Hi, SB Temp Hi,
SB Temp Very Hi, O2 Htr Ramp Rate, COe
Htr Ramp Rate, SB Heater Ramp Rate, O2
TC Shorted, O2 TC Reversed, COe TC
Shorted, COe TC Reversed, SB TC Shorted,
SB TC Reversed, ADC Failure, ADC Ref
Error, Board Temp Hi, EEPRM Chksm Fail,
Line Freq Error, Line Voltage Low, Line
Voltage Hi, Htr Relay Failed, Out Brd Fail)
Sample block heater temperature low (SB
Temp Low)
Sample block heater temperature high (SB
Temp Hi, SB Temp Very Hi)
RTD excitation current error (Ref Curr Err)
Combustibles sensor heater temperature
low (COe Temp Low)
Combustibles sensor heater temperature
high (COe Temp Hi, COe Temp Very Hi)
RTD excitation current error (Ref curr Err)
Emerson.com/Rosemount
Manual
00809-0500-4880
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