Emergency ascents, Dive computer limitations, 42 5.3. dive computer limitations – SUUNTO D9tx User Manual

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The Suunto D9tx uses traditional recommended safety stops as well as deep stops.
In order to optimize the response to different increased risk situations, an additional
category of stop, referred to as a Mandatory Safety Stop, has been introduced. The
combination of stop types depends on the user settings and the specific dive situation.
To get the most from the Suunto Technical RGBM safety benefits, refer to Sec-
tion 5.8.10. Setting the deep stops
and Section 5.11. Deep stops.

5.2. Emergency ascents
Before you dive, you must have the dive plan created with the Suunto Dive Planner
printed out on a slate. You must also have a back-up plan for lost gases. In the unlikely
event that the dive computer malfunctions during a dive, start using an alternative
depth gauge and timer and following the ascent schedule and gas switches that are
on the slate. If you dive using only air, follow these steps:
1.

Assess the situation calmly and then move promptly to less than 18 m/60 ft.

2.

At 18 m/60 ft, slow down your ascent rate to 10 m/33 ft per minute and move to
a depth between 3 and 6 m/10 and 20 ft.

3.

Stay there for as long as your air supply will safely allow. After reaching the sur-
face, do not dive for at least 24 hours.

5.3. Dive computer limitations
While the dive computer is based on current decompression research and technology,
you must realize that the computer cannot monitor the actual physiological functions
of an individual diver. All decompression schedules currently known to the authors,
including the U.S. Navy Tables, are based on theoretical mathematical models, which
are intended to serve as a guide to reduce the probability of decompression illness.

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