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Fig. 6.12. Decompression
dive, at ceiling zone. Two
arrows point at each other
("hour glass"). You are in
the optimum ceiling zone
at 3.2 m [11 ft] and your
minimum ascent time is 7
minutes..
62
move downward and the ascent time will increase. Likewise,
the fl oor and ceiling may change upwards while you are de-
compressing.
When conditions are rough, it may be diffi cult to maintain a
constant depth near the surface. In this case it will be mo-
re manageable to maintain an additional distance below the
ceiling, to make sure that the waves do not lift you above the
ceiling. Suunto recommends that decompression takes place
deeper than 4 m [13 ft], even if the indicated ceiling is shallo-
wer.
NOTE! It will take more time and more air to decompress be-
low the ceiling than at the ceiling.
WARNING!
NEVER ASCEND ABOVE THE CEILING! You must not as-
cend above the ceiling during your decompression. In order
to avoid doing so by accident, you should stay somewhat be-
low the ceiling.
DISPLAY BELOW THE FLOOR
The blinking ASC TIME and an upward pointing arrow indi-
cate that you are below the fl oor (Fig. 6.10.). You should start
your ascent immediately. The ceiling depth is shown on the
left side and the minimum total ascent time on the right side
of the center window.
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