Info

+7 fsw

Example. The diver's pneumofathometer reads 250 fsw. In the depth range of 201-300 fsw, the pneumofathometer underestimates the diver's true depth by 4

fsw. To determine the true depth, 4 fsw must be added to the pnuemofathometer reading. The diver's true depth is 254 fsw.

14-3.1.2 Travel Rates. The descent rate is not critical, but it should not exceed 75 fsw/min.

The ascent rate is at a constant rate of 30 fsw/minute. The ascent time between stops is included in the time of the subsequent stop, except when reaching the first stop and when the shift to 100 percent oxygen is made.

14-3.1.3 Decompression Breathing Gas. For dives as deep as 200 fsw, decompression is taken on the bottom mixture up to the 50-fsw water stop (40-fsw if 40 fsw is the first stop) and the diver is then shifted to 100 percent oxygen. For dives greater than 200 fsw, decompression is taken on the bottom mixture to the 100-fsw water stop (or next shallower stop if there is no 100-fsw stop) and the diver is then shifted to a 60 percent helium/40 percent oxygen mixture. Upon arrival at the 50-fsw water stop, the diver is shifted to 100 percent oxygen. Surface decompression may be taken after completing a portion of the 40-fsw oxygen stop on all dives, as described in paragraphs 14-3.7 and 14-3.8.

0 0

Post a comment