Chapter 2, Operation; Test Sequence; Alarm Test; Gas Test - MSA Altair 4 QuickCheck Mode D'emploi

Chapter 2,
Operation
1. Verify that tubing is connected and power is supplied.
2. Verify that automatic regulator is ON.
The calibration cylinder concentrations must match
the instrument calibration setting; otherwise, instrument
readings may be incorrect.
3. Insert instrument into the test station.
NOTE: The following test sequence occurs:

Test Sequence

Alarm Test

• Audible alarm and visual alarm functions are checked
• ALARM TEST LED lights
• LED flashes amber during test
• Green LED indicates passing
• Red LED indicates failure
• Solid amber LED indicates that Altair 4 alarms
are turned OFF.

Gas Test

• Sensor response to gases is verified
• GAS TEST LED lights
• LED flashes amber during test
• Green LED indicates passing
• Red LED indicates failure.

Overall Pass/Fail Test Indication

• PASS OR FAIL LED lights
• Green LED indicates passing
• Red LED indicates failure
• Checkmark symbol appears on the instrument display
when it is successfully bump checked
" WARNING
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