Suunto VYTEC DS manual Mandatory Safety Stop, Diving display. Pres- ent depth is 19.3 m

		m
		MAX
		NO DEC TIME
C
B
T	bar	DIVE TIME

Fig. 3.7. Dive has just begun and no air time is shown. First estimate of remaining air time will be shown after 30-60 seconds.

		m
		MAX
	AIR TIME	NO DEC TIME
C
B
T	bar	DIVE TIME

Fig. 3.8. Diving display. Pres- ent depth is 19.3 m

[63 ft] and no-decompression stop time limit is 23 minutes in A0/P1 mode. Maximum depth during this dive was

19.8m [65 ft], elapsed dive time is 16 minutes.

		m
		MAX
	AIR TIME	NO DEC TIME
C
B
T	bar	DIVE TIME
°C		TIME

3.2.2. Mandatory Safety Stop

When the ascent rate exceeds 12 meters/min [40 ft] momentarily or 10 meters/min [33ft] con- tinuously the micro-bubble build-up is predicted to be more than allowed for in the decompres- sion model. The Suunto RGBM calculation model responds to this by adding a Mandatory Safety Stop to the dive. The time of this Manda- tory Safety Stop will depend on the severity of the ascent rate excess.

The STOP sign will appear in the display and when you reach the depth zone between 6 m to 3 m [20 ft to 10] also the CEILING label, ceiling depth and the calculated Safety Stop time appear in the display. You should wait until the Mandatory Safety Stop warning disappears (Fig. 3.14.).

The Mandatory Safety Stop time always in- cludes the three minute Recommended Safety Stop time. The total length of the Mandatory Safety Stop time depends on the seriousness of the ascent rate violation.

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 (Fig. 3.15.). You should immediately descend to, or below, the Mandatory Safety Stop ceiling depth. If you correct this situation at any time during that dive, there are no affects on the decompression cal- culations for future dives.

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 to prolong your surface interval time before your next dive.

Fig. 3.9. Diving display. Present cylinder pressure is 210 bar [3045 psi] and remaining air time 41 minutes. Alternative display of current time and temperature is shown for 5 seconds after pressing TIME button.

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