MSA Altair - Altair Function Checks; Performing Alarm Tests; Conducting Bump Tests

Chapter3,
AltairFunctionChecks
ConfidenceandHeartbeatIndicator
• The alarm lights and heartbeat indicator on the display will
flash approximately every 60 seconds to indicate that the
Altair Detector is operating.
AlarmTest
• Check before each day’s use.
• Press the TEST button momentarily. A one-second test of the
alarms will occur; this includes the:
• display
• alarm lights
• vibrator
• horn.
• If these items do not activate, remove the instrument from service.
BumpTest
• Check before each day’s use.
• Press the TEST button momentarily:
• oxygen versions will display the current oxygen reading;
calibrate the unit if it reads other than 20.8%.
• "TEST" "GAS" "?" will display.
• alarm test will activate.
• Press the TEST button again while "TEST" "GAS" "?" is displayed
to activate the Bump Test mode.
• the hourglass and "GAS" will display.
• Apply gas only AFTER the hourglass and "GAS" are displayed.
• If gas is detected, the display will indicate "OK".
NOTE: See TABLE 3-1 for applied gases.
3-1