Oceanic ATOM Operating Manual - page 34

34

BAR GRAPH

The Bar Graph is used as a visual representation of nitrogen

loading, or when accessed, oxygen accumulation.  By default the

Bar Graph  (Fig. 25a) represents tissue loading of nitrogen,

showing your relative no decompression or decompression status.

This is referred to as the Tissue Loading Bar Graph (TLBG).

When the ATOM is set to operate in Nitrox mode, the Bar Graph

will represent oxygen accumulation when the oxygen data screen

(Alternate Display) is accessed temporarily.  The O2BG icon (Fig.

26a) will appear as an indication.

Regardless of which parameter the Bar Graph is representing at

the time, nitrogen and oxygen calculations will continue to be

performed in the background.

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 addi-

tional no decompression time is allowed.

The Tissue Loading Bar Graph monitors 12 different nitrogen

compartments simultaneously and displays the one that is in

control of your dive.  It consists of 5 segments, the lower 4

represent No Decompression status and the fifth at the top indi-

cates  a Decompression condition.

Fig. 26 - O2 Bar Graph

Fig. 25 - Nitrogen Bar Graph

a

a