MSA DESCRIPTION
ALTAIR 4 - Operating Manual 13
2.2.7 Battery Life Indicator
The battery condition icon continuously displays in the upper right-hand
corner of the 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
WARNING
If battery warning alarm activates while using the instrument, 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 16 hours.
Actual run-time will vary depending on ambient temperature and alarm
conditions. The runtime of the instrument at -4 °F (-20 °C) will be
approximately 8 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 shows "Low Batt" and
• instrument repeats this warning every 15 seconds and continues to
operate until it is turned OFF or battery shutdown occurs.
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