MSA altair 4x - Calibration Procedures

MSA
Operation
ALTAIR 4X
40
GB
Fresh Air Setup and Zero Calibration
(1) Press and hold the  button in Normal Operation mode for three seconds.
(2) If calibration lockout option is selected, enter password.
 ZERO screen is then displayed.
To skip the Zero procedure and move directly to the Calibration Span
procedure, push the  button. If no button is pushed for 30 seconds,
the device prompts user to perform a Span calibration before returning
to the Normal Operation mode.
Password
correct?
YES NO
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