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4 Functions during the dive
III UWATEC
®
Smart dive computers
4.1 Immersion
After immersion, starting at a depth of about 0.8 m (3 ft), TEC automatically selects gas mixture 1, all
diving functions are monitored, i.e. depth and dive time displayed, maximum depth stored, saturation of
tissues calculated, no-stop time or decompression prognosis determined, ascent rate controlled and dis-
played and the correctness of the decompression procedure supervised. In addition, TEC also shows the
tank pressure and about 2 minutes into the dive the Remaining Bottom Time (RBT) is displayed.
4.2 Setting bookmarks
During the dive you can create bookmarks in your dive profile by pressing . An audible signal con-
firms the creation of the bookmark. These bookmarks will be graphically displayed in the dive profile of
SmartTRAK.
To visualize the bookmarks on the dive profile, you must select the box “Gene-
rate bookmarks” under “Program options” in SmartTRAK.
4.3 Dive time
The whole time spent below a depth of 0.8m (3 feet) is displayed as dive time
in minutes. The time above 0.8m (3 feet) is counted as dive time only if the
diver descends again below 0.8m (3 feet) within 5 minutes.
While the dive time is running, the colons on the right of the figures are
flashing in one second intervals. Maximum dive time displayed is 999 minutes.
If a dive lasts longer than 999 minutes the dive time display starts
again at 0 minutes.
4.4 Current depth
Current depth is given in 10 cm increments (1 foot). On switching
on and at a diving depth of less than 0.8 m (3 ft) the display shows
<– – –>.
Depth measurement is based on freshwater. Therefore,
TEC shows a slightly greater depth when diving in salt
water, depending on the salinity of the water. No calcu-
lation however is affected.
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English
4.5 Maximum depth / Temperature
Maximum depth is only displayed if it exceeds the current depth by more than
1 m (3 feet) (maximum indicator function). If maximum depth is not displayed,
TEC shows the temperature.
Set maximum depth reached
If the maximum depth set with SmartTRAK has
been reached (default 40m/130 feet), the display
will flash and the ascent arrow will be displayed.
Ascend until the ascent arrow disappears.
4.6 Ascent rate
Optimal ascent rate varies depending on depth between 7 and 20 m/min (23
and 67 ft/min). It is displayed as a percent of the reference variable ascent rate.
If the ascent rate is greater than 100% of the set value, the black arrow
<SLOW> appears. If the ascent rate exceeds 140%, the arrow starts flashing.
TEC provides an audible alarm if the ascent rate is 110% or greater. The inten-
sity of the alarm increases in direct proportion to the degree that the prescri-
bed ascent rate is exceeded.
