MSA ALTAIR 5X PID Operating Manual page 46

Span Calibration
To skip the Span calibration procedure, push the
If the SPAN calibration of the combustible sensor is skipped after a successful ZERO
calibration, the combustible sensor reading may be replaced with a moving display of
"PLEASE WAIT" for a few moments. This is normal, and the device is fully operational
once a combustible gas reading reappears.
If no button is pushed for 30 seconds, span calibration is skipped.
Because of the different possible combinations of gases that are possible, skipping a Span calibration
could advance the user to the Span calibration of another installed sensor, or back to Measuring mode.
When calibrating a PID sensor, use 100 ppm isobutylene balanced in air. Isobutylene
calibration gas greater than 100 ppm is not allowed due to long term affect on the
CO sensor.
(1) Connect one end of tubing to the cylinder regulator (supplied
in the calibration kit).
(2) Connect the other end of the tubing to the pump inlet.
(3) Press the button to calibrate (span) the device.
"SPAN CALIBRATION" flashes
SPAN calibration starts.
A progress bar shows the user how much of the calibration
has already been completed.
After the SPAN calibration is completed, the device
displays either
"SPAN CALIBRATION PASS"
or
"SPAN CALIBRATION FAIL"
The device returns to Measuring mode.
button.
ALTAIR 5X PID
Operation
US
46