93
Air Time Remaining Alarm
When Air Time Remaining (ATR) decreases to 5 minutes, the
Audible Alarm will sound and the LED will flash.
If Air Time Remaining decreases to zero, the Audible will sound
again and the LED will flash.
The message LOW > AIR > TIME will scroll at the top of the
screen (Fig. 82) until Air Time Remaining becomes greater than 5
minutes.
You should immediately initiate a controlled Ascent while moni-
toring your Tank Pressure. However, there is no reason to panic,
the ATOM has allowed for the Air necessary for a safe Ascent
including any emergency Decompression Stops required.
Example:
• You set the End Pressure Alarm for 300 PSI (20.5 BAR)
• You are at a Depth of 60 feet (20 meters)
• Air Time Remaining decreases to 0:00
• You Ascend at a maximum rate of 30 fpm (10 mpm)
• You surface with 300 PSI (20.5 BAR) pressure still in your
Tank
Fig. 82 - ATR Alarm
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