U.S. Divers 150-2421 - Flatfoto 1.3-megapixel Digital Camera, Owner'S Manual

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Section 2: Diving with the Monitor 3 Air
21
Graphic Air Time Remaining (ATR)
The graphic air time remaining box gives you, at a quick
glance, the amount of air you have left. As your air time
lowers, the box empties. For example, if the box is filled
up to the 45 minute level, you have between 45 and 60
minutes of air time remaining; if the box is filled to the 30
minute level, you have between 30 and 45 minutes of air
time.
Graphic Air Time
Remaining Display
Digital Air Time Remaining (ATR)
Digital air time remaining gives you the amount of time,
displayed in minutes, that you can stay at the current
depth and still be able to:
- carry out all required decompression stops
- Make a safe ascent to the surface at the permitted
ascent rate
- Arrive at the surface with at least 580 psi remaining in
your cylinder.
Note: The ending psi level can be altered with the PC
interface kit.
Digital Air Time
Remaining Display