MSA altair 4 - Calibrations

MSA APPENDIX – FLOW CHARTS
7.7 Calibrations
Press
[
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ZERO CAL
COMB/EX
O2
H2S
CO
Perform
ZERO CAL?
CO
COMB/EX
O2
H2S
CO
COMB/EX
O2
H2S
CO
SPAN CAL
COMB/EX
O2
H2S
CO
Perform
ZERO CAL?
O2
H2S
COMB/EX
O2
CAL COMPLETE
Press
[
]
Press
[
]
Press
[
]
Return to
Normal Operation
From Measure Page when
[
]
is held for 3 seconds.