Battery Life Indicator; Battery Warning - MSA ALTAIR 4X Operating Manual

2.2.7 Battery Life Indicator

The battery condition icon continuously displays in the upper right-hand
corner of the color display. As the battery is depleted, battery icon
segments blank until only the battery icon outline remains.
Each indicator segment represents approximately 25% of the total
battery capacity.

Battery Warning

If battery warning alarm activates while using the instru-
ment, leave the area immediately as the end of battery life is
approaching.
Failure to follow this warning can result in serious personal
injury or death.
The nominal run-time of the instrument at room temperature is 24
hours. Actual run-time will vary depending on ambient temperature and
alarm conditions. Instrument run-time at -4°F (-20°C) is approximately
14 hours.
A Low Battery Warning indicates that a nominal 30 minutes of operation
remain before the battery's charge is depleted.
The duration of remaining instrument operation during a Low Battery
Warning depends on ambient temperatures.
When the instrument goes into Low Battery Warning, the:
• battery life indicator flashes
• alarm sounds
• alarm LEDs flash
• display flashes "LOW BATT" and
• instrument repeats this warning every 15 seconds and continues to
operate until it is turned OFF or battery shutdown occurs
" WARNING
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