MSA ALTAIR O2 - Function Tests on the Instrument

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MSA OPERATION
ALTAIR Operating Manual 19
3.5. Function tests on the instrument
Checking the ready indicator
The alarm LEDs and the ready indicator in the display must flash every 60 s after
starting the instrument.
Alarm test
The alarm test must be conducted before each use.
It is part of the self-test.
(1) Briefly press the [TEST] key.
A short alarm is triggered. These include:
 temporary display indicators;
 alarm LEDs flash;
 acoustic signal sounds briefly and
 vibration alarm is triggered briefly.
Self-test
The self-test ( Fig. 6) must be conducted before each use.
(1) Briefly press the [TEST] key.
 In the oxygen version, the set oxygen concentration is displayed.
Calibration ( Section 3.6) must be carried out if the value deviates from
20.8%!
 "
TEST" "GAS" "?" is displayed.
 The alarm test (see above) is triggered.
(2) Press the [TEST] key again if "TEST" "GAS" "?" is displayed.
 Hour glass and "
GAS" are displayed
(3) Feed test gas into the instrument (possible test gases  "Test gases" table
in Section 5.2).
 "OK" is displayed.
(4) Press the [TEST] key again.
 In addition to the remaining operation time, a "“ is displayed for
24 hours to indicate that the self-test was successful.