SUUNTO Vyper - Manual (Page 26)

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WARNING!
YOU SHOULD ASCEND AND BEGIN DECOMPRESSION IMMEDIATELY
WHEN THE DIVE COMPUTER SHOWS YOU THAT DECOMPRESSION
IS REQUIRED! Note the blinking ASC TIME symbol and the upward pointing
arrow.
WARNING!
YOUR ACTUAL ASCENT TIME MAY BE LONGER THAN DISPLAYED
BY THE INSTRUMENT. The ascent time will increase if you:
- remain at depth
- ascend slower than 10 m/min [33 ft/min] or
- make your decompression stop deeper than at the ceiling.
These factors will also increase the amount of air required to reach the
surface.
WARNING!
NEVER ASCEND ABOVE THE CEILING! You must not ascend above the
ceiling. In order to avoid doing so by accident, you should stay slightly below
the ceiling.
CEILING, CEILING ZONE, FLOOR, AND DECOMPRESSION
RANGE
When in decompression, it is important that you understand the meaning of ceil-
ing, fl oor, and decompression range:
• The ceiling is the shallowest depth to which you should ascend when in
decompression. At this depth, or below, you must perform one or sev-
eral decompression stops. All decompression stops must be performed
at or below the ceiling depth.
• The ceiling zone is the optimum decompression stop zone. It is the zone
between the minimum ceiling and 1.8 m [6 ft] below the minimum ceil-
ing.
• The fl oor is the deepest depth at which decompression takes place.
Decompression will start when you pass this depth during your ascent.
• The decompression range is the depth range between the ceiling and
fl oor. Within this range, decompression takes place. However, it is
important to remember that the decompression will be very slow at or
close to the fl oor.