MSA INSTRUMENT SAFETY
ALTAIR 4 - Operating Manual 5
1 Instrument Safety
1.1 Correct Use
The ALTAIR 4 Multigas Detector is for use by trained and qualified per-
sonnel. It is designed to be used when performing a hazard assessment to:
• Assess potential worker exposure to combustible and toxic gases
and vapors as well as low level of oxygen.
• Determine the appropriate gas and vapor monitoring needed for a
workplace.
The ALTAIR 4 Multigas Detector can be equipped to detect:
• Combustible gases and certain combustible vapors
• Oxygen-deficient or oxygen-rich atmospheres
• Specific toxic gases for which a sensor is installed.
Note: While the instrument can detect up to 25 % oxygen in ambient air, it is
approved for use only up to 21 % oxygen.
WARNING
Read and follow all instructions carefully.
• Perform a bump test before each day's use and adjust if
necessary.
• Perform a bump test more frequently if exposed to silicone,
silicates, lead-containing compounds, hydrogen sulfide, or high
contaminant levels.
• Recheck calibration if unit is subjected to physical shock.
• Use only to detect gases/vapors for which a sensor is installed.
• Do not use to detect combustible dusts or mists.
• Make sure adequate oxygen is present.
• Do not block sensors.
• Have a trained and qualified person interpret instrument
readings.
• Do not recharge Li polymer battery in a combustible atmosphere.
• Do not alter or modify instrument.
INCORRECT USE CAN CAUSE SERIOUS PERSONAL INJURY OR
DEATH.
NOTE:
This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful
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