Calibrating the ALTAIR Single Gas Detector

WARNING! 

Perform a calibration per the instructions in this user guide. Do not continue operation of a detector that is not able to pass calibration.

Failure to follow this warning can result in serious personal injury or death.

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While the ALTAIR Single Gas detector is designed to be a maintenance free instrument, under normal circumstances MSA recommends calibration at least every six months or in accordance with local regulations. The device must be calibrated if it does not pass a Bump Test or if any of the conditions listed below exist.

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For oxygen instruments, perform a calibration if any of the following occur:

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physical shock

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there are changes in barometric pressure (altitude changes)

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there are extreme changes in ambient temperature and humidity (see Instrument Specifications).

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the instrument does not pass a bump test.

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For toxic instruments (CO and H2S), perform a calibration if any of the following occur:

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physical shock

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extended use in extreme temperatures

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high concentration exposure

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the instrument does not pass a bump test.