MSA ALTAIR 5X - Page 54

MSA
Operation
ALTAIR 5X/ALTAIR 5X IR
54
GB
If a sensor is nearing its end-of-life, the "PASS" display is followed by the Sensor
Life indicator ♥display.
- While the sensor is still fully functional, this warning gives the user time to plan
for a replacement sensor to minimise downtime.
- The ©indicator blinks as the device returns to Measure mode.
- After 15 seconds, the blinking stops, but the ♥ indicator continues to display
during ongoing operations as a reminder of a sensor’s pending end-of-life.
If a span calibration fails:
- The Sensor Life Indicator ♥ blinks to show a sensor has reached its end-of-life
and should be replaced.
- The device remains in the Sensor Life alarm condition until the  button is
pressed.
- After the alarm is cleared, the device enters Measure mode and the Sensor Life
indicator ♥ blinks during ongoing operations until the sensor is replaced and/or
successfully calibrated.
Span calibration can fail for reasons other than a sensor at the end of its life. If a
span calibration failure occurs, verify items such as:
- sufficient gas remaining in the calibration cylinder
- gas expiration date
- integrity of calibration tubing/fittings, etc.
 Reattempt the span calibration before replacing the sensor.