MSA ALTAIR 4X Manuel D'utilisation page 45

3. Attach the calibration cap to the instrument.
• Insert tab on calibration cap into slot on instrument.
• Press calibration cap as shown until it seats onto instrument.
• Press both side tabs down onto instrument until they snap in.
• Ensure that the calibration cap is properly seated.
• Connect one end of the tubing to the calibration cap.
• Connect other end of tubing to the cylinder regulator
(supplied in the calibration kit).
4. Open the valve on the regulator.
5. Press the button to calibrate (span) the instrument.
• LEDs flash
• SPAN calibration starts.
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