UPWARD POINTING ARROW, BLINKING ASC
TIME AND AN ALARM TELL YOU TO ASCEND. MINIMUM
TOTAL ASCENT TIME INCLUDING MANDATORY SAFETY
STOP IS 15 MINUTES. CEILING IS AT 3 M.
Display above the floor
When you ascend above the floor, the ASC TIME display stops blinking and the upward
pointing arrow disappears. Below is an example of a decompression dive above the floor.
UPWARD POINTING ARROW HAS
DISAPPEARED AND ASC TIME LABEL HAS
STOPPED BLINKING, MEANING YOU ARE IN
THE DECOMPRESSION RANGE.
Decompression will now begin, but is very slow. You should therefore continue your ascent.
Display at the ceiling zone
When you reach the ceiling zone, the display will show you two arrows pointing at each
other (the “hour glass” icon). Below is an example of a decompression dive at the ceiling
zone.
TWO ARROWS POINT AT EACH OTHER
“HOUR GLASS”. YOU ARE IN THE OPTIMUM CEILING
ZONE AT 3 M. AND YOUR MINIMUM ASCENT TIME IS
15 MINUTES.
During the decompression stop, ASC TIME will count down towards zero. When the ceiling
moves upwards, you can ascend to the new ceiling. You may surface only after the ASC
TIME and CEILING labels have disappeared, which means that the decompression stop
and any Mandatory Safety Stop have been completed. You are advised, however, to stay
until the STOP sign has also disappeared. This indicates that the three minute
Recommended Safety Stop has also been completed.
Display above the ceiling
If you ascend above the ceiling during a decompression stop, a downward pointing arrow
will appear and a continuous beeping starts.
DECOMPRESSION DIVE, ABOVE CEILING.
NOTE DOWNWARD POINTING ARROW, ER WARNING
AND ALARM. YOU SHOULD IMMEDIATLY (WITHIN
3 MINUTES) DES C END TO OR BELOW CEILING.
In addition, an Error warning (Er) reminds you that you have only three minutes to correct
the situation. You must immediately descend to, or below, the ceiling.
If you continue to violate the decompression, the dive computer will go into a permanent
Error Mode. In this mode, the instrument can only be used as a depth gauge and timer.
You must not dive again for at least 48 hours. (See
Section 5.6. Error conditions
).
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