MSA ALTAIR 5X Manual De Uso página 34

4 Operation
combustible sensor reading may be replaced by a moving display of
"PLEASE WAIT". This is normal.
NOTE: After the ZERO calibration is completed the device displays
either
• "ZERO CALIBRATION PASS"
or
• "ZERO CALIBRATION FAIL".
NOTE: Only if the device passes the zero calibration the SPAN
screen displays.
4.10.2 Span Calibration
To skip the Span calibration procedure, push the ▲ button.
NOTE: 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 with combustible gases > 100 % LEL, select the "Yes" option to prompt "Span Calibration?" BEFORE
applying gas to the device.
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.
NOTE: After the SPAN calibration is completed, the device displays
either
• "SPAN CALIBRATION PASS"
or
• "SPAN CALIBRATION FAIL"
NOTE: The device returns to Measuring mode.
If a sensor is nearing its end-of-life, the "PASS" display is followed by the Sensor Life indicator ♥ display.
34 ALTAIR 5X / ALTAIR 5X IR US