Honeywell MicroMAX Pro User & Maintenance Manual page 91

MAN-MAXPRO
REV. B.0.
APPENDIX D - MODE SEQUENCE, USER SET-UP MODE
Calibration Failure
OX LEL C0 H2S
APPLY GAS
TIME
OUT
OX LEL C0 H2S
APPLY GAS
CAL FAILURE
OX LEL C0 H2S
20.9 0 0 0
P 08:49 B
91
LED SPEAKER
3 BEEPS,
"CALIBRATION FAIL"