11
O
2
ATR
5
10
20
40
50
60
0
O
2
30
BAR GRAPHS
Tissue Loading Bar Graph (TLBG)
The Tissue Loading Bar Graph (Fig. 2a) represents tissue loading of nitrogen, showing your
relative no decompression or decompression status. As your depth and elapsed dive time
increase, segments will add to the Graph, and as you ascend to shallower depths, the Bar
Graph will begin to recede, indicating that additional no decompression time is allowed for
multilevel diving.
The Tissue Loading Bar Graph monitors 12 different nitrogen compartments simultaneously
and displays the one that is in control of your dive. It is divided into a green No Decom-
pression (normal) zone, a yellow Caution zone (also No Decompression), and a red De-
compression (danger) zone.
While you cannot provide a guarantee against the occurrence of decompression sickness,
you may choose your own personal zone of caution based upon age, physique, excessive
weight, etc., to reduce the statistical risk.
NOTE: Displays associated with oxygen and the O2
Bar Graph will only appear if FO2 has been set at a
value other than 'Air' (e.g., a numerical value).
Oxygen Accumulation Bar Graph (O2BG)
The O2 Bar Graph (Fig. 2b) represents oxygen loading, showing
the maximum of either per dive accumulated oxygen, or 24 hour
period accumulated oxygen.
Fig. 2 - TLBG & O2BG
a
b
