SCBA REDUNDANT ALARM

November 1, 1999
Fire Engineering Staff

SCBA REDUNDANT ALARM

MSA (Mine Safety Appliances): Alarm activated by opening air mask cylinder valve. Pressure readings displayed on analog gauge. If cylinder pressure level decreases to 1,100 psig on high-pressure air masks or 540 on low-pressure masks, audible (85-decibel bursts) and visual (alternately flashing red/amber) indicators activate. Alarm keeps emitting warning indications even after battery fails or air supply is exhausted.

(800) MSA-2222.

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