Oceanic Data 100, Owner'S Manual

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The no decompression algorithm is based upon Haldane’s theory using
maximum allowable nitrogen levels developed by Merrill Spencer. Repeti-
tive diving control is based upon experiments designed and conducted by
Dr. Ray Rogers and Dr. Michael Powell in 1987. Diving Science and
Technology
® (DSAT), a corporate affiliate of PADI ® , commissioned these
experiments and now uses the findings in the Recreational Dive Planner ™
distributed by PADI.
As your depth and bottom time increase, the TLBG will fill with segments in a
clockwise direction from the lower left toward the upper center to represent the
absorption of nitrogen. If the TLBG passes the 12 o'clock position (Fig. 23), you
enter Decompression Mode. Upon ascent to shallower depths, the bar graph will
begin to recede in a counter clockwise direction, indicating that additional no
decompression time is available through multilevel diving.
Decompression Dive Mode
The Data100 will help you to avoid and manage decompression.
WARNING: Oceanic recommends the application of responsible
diving practices and does not recommend decompression diving,
or diving deeper than 130 feet (39 meters), as these practices will
greatly increase your risk of decompression sickness.
Fig. 23 - Entering into
Decompression Mode
FT
GLO
DATA
100
12 o'clock
No Deco Deco