Suunto Cobra2 [25/56] Mandatory safety stops

5.10.2. Mandatory Safety Stops

When the ascent rate exceeds 10 m/33 ft per minute continuously for more than 5 seconds,

the microbubble build-up is predicted to be more than is allowed for in the decompression

model. The Suunto RGBM calculation model responds to this by adding a Mandatory

Safety Stop to the dive. The time of this Mandatory Safety Stop depends on the severity

of the ascent rate excess.

The STOP sign appears in the display and when you reach the depth zone between 6 m

and 3 m/20 ft and 10 ft, the CEILING label, ceiling depth, and the calculated Safety Stop

time also appear in the display. You should wait until the Mandatory Safety Stop warning

disappears. The total length of the Mandatory Safety Stop time depends on the seriousness

of the ascent rate violation.

WHEN CEILING AND STOP ARE

DISPLAYED, MAKE A ONE MINUTE

MANDATORY SAFETY STOP IN THE

DEPTH ZONE BETWEEN 6 M AND 3 M.

You must not ascend shallower than 3 m/10 ft with the Mandatory Safety Stop warning

on. If you ascend above the Mandatory Safety Stop ceiling, a downward pointing arrow

will appear and a continuous beeping starts. You should immediately descend to, or below,

the Mandatory Safety Stop ceiling depth. If you correct this situation at any time during

the dive, there are no effects on the decompression calculations for future dives.

WHEN CEILING AND STOP

ARE DISPLAYED, IMMEDIATELY

(WITHIN 3 MINUTES) DESCEND

TO OR BELOW CEILING.

If you continue to violate the Mandatory Safety Stop, the tissue calculation model is affected

and the dive computer shortens the available no-decompression time for your next dive.

In this situation, it is recommended that you prolong your surface interval time before your

next dive.

5.11. Deep stops

Deep Stops are safety stops that occur deeper than traditional stops, with the purpose of

minimizing microbubble formation and excitation.

The Suunto RGBM model calculates deep stops iteratively, placing the first stop about

halfway between the maximum depth and the ceiling depth. After the first Deep Stop is

completed, another Deep Stop will be prompted halfway to the ceiling, and so on until the

ceiling depth is reached.

The Deep Stop length can be set to 1 or 2 minutes.

NOTE

With Deep Stops on, the Recommended Safety Stops will still be

activated at the end of the dive.