17
BAR GRAPHS
The VT3 features a Tissue Loading Bar Graph (TLBG) (Fig. 7a) that represents your relative
no decompression or decompression status.
As your Depth and Elapsed Dive Time increase, segments will add to the TLBG, and as you
ascend to shallower depths, the segments of the TLBG will begin to recede, indicating that
additional no decompression time is allowed.
The TLBG monitors 12 different nitrogen compartments simultaneously and displays the one
that is in control of your dive. It consists of 8 segments, the lower 7 represent No Decom-
pression status and the 8th at the top indicates a Decompression condition.
When the VT3 is set to operate in NORM Nitrox mode, the 5 segment O2 Bar Graph
(O2BG) (Fig. 7b) will represent oxygen accumulation.
Displays associated with oxygen and the O2 Bar Graph will be
displayed if FO2 for any Gas (1, 2, or 3) has been set at a
value other than 'Air' (e.g., a numerical value).
The O2BG will show the maximum of either per dive accumu-
lated oxygen or 24 hour period accumulated oxygen. As your
oxygen exposure (accumulation) increases during a NORM
dive, segments will add to the O2BG, and as saturation de-
creases, it will begin to recede, indicating that additional expo-
sure is allowed for that dive and 24 hour period.
Fig. 7 - TLBG and O2BG
b
a
