Filter
Top Products
38
T
C
B
ºC
m
STOP
CEILING
DIVE TIME
BEEP
BEEP
BEEP
DIVE TIME
T
C
B
º
C
m
ASC TIME
CEILING
DIVE TIME
T
C
B
º
C
m
CEILING
ASC TIME
Fig. 3.14. Violated
Mandatory Safety Stop.
Downward pointing arrow
and an audible alarm
indicate you should
descend to ceiling zone.
Fig. 3.15. Decompression
dive, below oor. Upward
pointing arrow, blinking
ASC TIME label and an
audible alarm tell you to
ascend. Minimum total
ascent time including
safety stop is 7 minutes.
Ceiling is at 3 m [10 ft].
Fig. 3.16. Decompression
dive, above oor. Upward
pointing arrow has
disappeared and ASC
TIME label has stopped
blinking, which means
that you are in the
decompression range.
CEILING, CEILING ZONE, FLOOR AND DECOMPRESSION RANGE
When in decompression, it is important that you understand the meaning of ceiling,
oor, and decompression range (Fig. 3.19.):
• The ceiling is the shallowest depth to which you should ascend when in decom-
pression. At this depth, or below, you must perform all stops.
• 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 ceiling.