Tusa IQ-850 DC-Sapience, Operating Manual

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1 6
7. Dive Plan Mode
To enter Dive plan mode from Time mode, press the A button three times
until the " DIVE PLAN" screen is shown.
Note: This mode cannot be entered if the computer is in an out of
measurement range lock or a decompression stop violation lock. In
both instances the computer will skip to the dive log mode.
Please note: a ltitude measurements are not performed in dive plan mode.
By setting the depth and surface time, the no decompression limit
(NDL) for that depth can be calculated. (Fig. 5,6)
The following information is displayed during this mode:
Surface Time : This displays the time currently elapsed since
surfacing and the total surface time needed to return to the selected
depth.
Depth : This displays the desired depth.
NDL : The no decompression limit for the selected depth, based on
surface time, is displayed. The maximum NDL that can be displayed
is 200 minutes. If the selected depth will result in a PO
2
greater than
1.4, the display will show bar.
N
2
: This will display the PGT (pressure gas in tissue) of nitrogen
absorbed in the diver’s body at the set surface time (Fig. 6) .
O
2
: This will indicate the level of oxygen in the body during the set
surface time.
Nitrox icon : This icon will be on when the FO
2
is set at 22 percent or
higher.
Please note: Figure 5 and 6 displays will scroll every 2 seconds to give
the user the ability to view PGT tissue compartment loading data.