MSA Altair 5X Manual De Instrucciones página 53

• After SPAN calibration is completed, the instrument displays:
• "SPAN CALIBRATION PASS"
or
• "SPAN CALIBRATION FAIL"
If a span calibration fails:
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:
• Reattempt the span calibration before replacing the sensor.
3-22
• If a sensor is nearing its end-of-life, this "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 minimize downtime.
• The ♥ indicator blinks as the instrument 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.
• The Sensor Life Indicator ♥ blinks to show a sensor
has reached its end-of-life and should be replaced.
• The instrument remains in the Sensor Life alarm
condition until the ▲ button is pressed.
• After the alarm is cleared, the instrument enters
Measure mode and the Sensor Life indicator ♥
blinks during ongoing operations until the sensor is
replaced and/or successfully calibrated.
• sufficient gas remaining in the calibration cylinder
• gas expiration date
• integrity of calibration tubing/fittings, etc.