ABB Endura AZ series User Manual page 85

Endura AZ series integral and remote transmitter
Combustion oxygen monitor
Status Diagnostic Message
Icon Displayed
––S054.011––
CELL WARMING UP
Wait for cell
temp. to reach
690°C/1274°F
––S052.012––
CELL STABILIZING
Wait for cell
temperature to
stabilize (5min)
––S050.004––
O2 SENSOR
OUT OF RANGE
Address process
issue or extend
operating range
––S048.005––
TEMP. SENSOR
OUT OF RANGE
Check operating
conditions
Table 8.3 Diagnostics – Out of Specification Messages (Continued)
IM/AZ20E–EN Rev. F
Possible Cause(s)
Cell temperature is below 690 °C
(1274 °F).
Cell temperature above 690 °C
(1274 °F) but not stable.
Process oxygen concentration
beyond set operating range.
Maximum temperature range for
thermocouple exceeded.
8 Troubleshooting
Corrective Measure(s)
Wait for cell temperature to reach
690 °C (1274 °F) .
Wait for cell temperature to stabilize
(5 minutes).
Address process issue or extend
oxygen operating range.
Check operating conditions.
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