Endura AZ series integral and remote transmitter
Combustion oxygen monitor
8 Troubleshooting
IM/AZ20E–EN Rev. F
85
––M030.021––
TEST GAS 1 NOT
PRESENT
Check test gas
Test gas cylinder empty.
Check test gas lines.
Replace test gas cylinder.
––M028.022––
TEST GAS 2 NOT
PRESENT
Check test gas
Test gas cylinder empty.
Check test gas lines.
Replace test gas cylinder
––M026.018––
SENSOR CAL.
REQUIRED
Re-calibrate
Accuracy check indicates
re-calibration is required.
Perform calibration.
––M024.017––
SENSOR CAL.
OVERDUE
Re-calibrate
Customer entered calibration
interval exceeded.
Perform calibration.
––M022.020––
MISSED SCHEDULED
ACCURACY CHECK
Check reason for
missed check.
Re-calibrate
Device not in operating mode
when accuracy check was
scheduled.
Check reason why accuracy check
was not performed.
Perform calibration.
Status
Icon
Diagnostic Message
Displayed
Possible Cause(s)
Corrective Measure(s)
Table 8.4 Diagnostics – Maintenance Messages (Continued)