Suunto VYTEC DS manual Ascent Rate Indicator

Red Zone – As all of the bars appear (red zone), your no-decompression stop time has become zero and your dive has become a decompression stop dive (for more information see section 3.3.6. “Decompression dives”).

3.3.5. Ascent Rate Indicator

The ascent rate is shown graphically along the right side of the display as follows:

TABLE 3.2. ASCENT RATE INDICATOR

Ascent Rate	The equivalent		Example
Indicator	ascent speed		in Fig.
No segments	Below 4 m/min [13 ft/min]		3.8
One segment	4	- 6 m/min [13 – 20 ft/min]	3.9
Two segments	6	- 8 m/min [20 – 26 ft/min]	3.10
Three segments	8	- 10 m/min [26 – 33 ft/min]	3.11
Four segments	10 - 12 m/min [33 – 39 ft/min]		3.12
Four segments, the	Above 12 m/min [39 ft/min] or
SLOW segment,	continuously above
blinking depth reading,	10 m/min [33 ft/min]		3.13
the STOP sign and
an audible alarm

When the maximum allowed ascent rate is exceeded, the fifth SLOW warning segment and the STOP sign appear and the depth reading starts to blink, indicating that the maximum ascent rate has been exceeded continuously or that the current ascent rate is significantly above the allowed rate.

Whenever the SLOW warning segment and the STOP sign appear (Fig. 3.13.), you should immediately slow down your ascent. When you reach the depth zone between 6 m to 3 m [20 ft to 10 ft] the STOP and CEILING depth labels will advise you to make a Mandatory Safety Stop. Wait until the warning disappears (Fig. 3.14.). You should not ascend shallower than 3 m [10 ft] with the Mandatory Safety Stop warning on.

WARNING!

DO NOT EXCEED THE MAXIMUM ASCENT RATE! Rapid ascents increase the risk of injury. You should always make the Mandatory and Recommended Safety Stops after you have exceeded the maximum recommended ascent rate. If this Mandatory Safety Stop is not com- pleted the decompression model will penalize your next dive(s).

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