English
23
4 Functions during the dive
UWATEC
®
Smart dive computers
III
Decompression values
On entering the decompression phase, the arrow
NO STOP
disappears, the
arrow
DECOSTOP
appears and an attention beep goes off. Right beside the
arrow, the deepest decompression stage in metres (feet) is displayed. Next
to the decompression stop depth, the decompression stop duration of the
displayed stage appears in minutes. The display "3m 7:" means that a decom-
pression stop of 7 minutes at a depth of 3m has to be made.
When a decompression stop has been finished, the next higher decompression
stop is displayed. When all decompression stops have been made, the arrow
DECOSTOP
extinguishes and the arrow
NO STOP
reappears. The indication of
time on the lower right shows the no-stop time again.
Deco stop depths deeper than 27m (90 ft) are displayed as "– – : – – ".
The decompression alarm is activated if the decom-
pression stop is ignored. The arrow
DECOSTOP
, the
decompression stop duration and decompression
stop depth begin to flash and an audible alarm
goes off.
Due to the formation of microbubbles, decompression can increase massively
if a decompression stop is ignored. When the surface is reached during the
decompression alarm, the arrow
DECOSTOP
, the decompression stop dura-
tion and decompression stop depth continue flashing, in order to point to
the risk of a decompression accident. The SOS mode is activated 3 minutes
after the dive if corrective action is not taken (->11).
If the total (cumulative) duration of the decompression alarm is longer than
one minute, it is entered in the logbook.
Descend to the prescribed decompression stop depth immediately!
Total time of ascent
As soon as decompression stops are necessary Smart Z shows the total time of
ascent. This includes the ascent time from the current depth to the surface and
all decompression stop obligations.
The total time of ascent is calculated on the basis of the prescri-
bed ascent rate and a normal workload. Total time of ascent can be
subject to change if the ascent rate is not ideal (100%) or if Smart Z
detects a higher workload.
Ascent time greater than 99 minutes is displayed as "– –".
On all dives with Smart Z, make a safety stop for at
least three minutes at a depth of 5 m (15 feet).
CNS O
2
%
DECO STOP
CNS O
2
%
DECO STOP
Total time of ascent
CNS O
2
%
DECO STOP
Decompression
time
Decompression
stop depth
Ignored decompression
alarm
WARNING
WARNING
