Design Aeris Specifications Page 20

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20
Breathing Gas Consumption and Depth are continuously monitored and Air Time Remaining reflects
any change in circumstances. For example, when a buddy starts breathing from your octopus or you
suddenly find yourself swimming against a strong current and begin breathing more rapidly, the
ATMOS
ai
will recognize the change and adjust the Air Time Remaining accordingly.
Remember, the Air Time Remaining is the time you can remain at the present depth and still safely
surface with the tank pressure reserve that you selected during setup (End Pressure Alarm Set Point).
When Air Time Remaining indicates zero (Fig. 12a), you should immediately initiate a controlled as-
cent while monitoring your tank pressure. However, there is no reason to panic, the ATMOS
ai
has al-
lowed for the breathing gas 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. 12 -Air Time Remaining =
a
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