Oxygen Measurements; Warning - MSA Altair Manual De Operación

If a toxic or oxygen gas alarm condition is reached while
using the instrument as a personal or area monitor, leave the
area immediately: the ambient condition has reached a pre-
set alarm level. Failure to follow this warning will cause over-
exposure to toxic gases, which can result in serious person-
al injury or death.

Oxygen Measurements

• The Altair Detector can be purchased to measure the concentration
of oxygen in an atmosphere. High and Low alarm setpoints can be
configured to alarm in any combination of oxygen:
• enrichment (greater than 20.8%) or
• depletion (less than 20.8%).
• When an alarm setpoint is reached, the:
• Audible alarm sounds
• Alarm lights flash
• Vibrator activates
• Type of alarm displays by alternately flashing the ALARM
icon and the LO or HIGH icon, depending on how the Low
and High alarms were set.
• Low Alarm indicates:
• the lower %O 2 level of the two alarm settings
• a more urgent condition and the faster alarm
sequence will be indicated
• "LO" "ALARM" displays.
NOTE: False oxygen alarms can occur due to barometric pressure
(altitude) changes or extreme changes in ambient temperature.
It is recommended that an oxygen calibration be performed at
the temperature and pressure of use. Be sure that the instru-
ment is in known fresh air before performing a calibration.

" WARNING

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