User manual SUUNTO D6 QUICK GUIDE

[. . . ] CUSTOMER SERVICE CONTACTS S u u nt o O y Suunto USA Canada Europe Suunto website Phone +358 9 875870 F ax +3 5 8 9 8 7 5 8 73 0 1 Phone 1 (800) 543-9124 Phone 1 (800) 776-7770 Phone +358 2 284 11 60 www. suunto. com 1 1. WARNINGS, CAUTIONS, AND NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SUUNTO D6 AT A GLANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Navigating in the menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Nodecompression limits, Table 9. 1, No-decompression time limits for various depths (m) and Table 9. 2, No-decompression time limits for various depths (ft) ). Personal Adjustment settings Personal Condition adjustment value P0 P1 P2 Ideal conditions Some risk factors or conditions exist Several risk factors or conditions exist Desired tables Default Progressively more conservative The Suunto D6 also allows experienced divers who are willing to accept a greater level of risk to adjust the RGBM model. The reason for this is unknown, but it is possible that some level of physiological and/or psychological accommodation can take place when you are very experienced as a diver. Thus, for certain divers and diving conditions, it may be desirable to set attenuated (50%) RGBM mode. RGBM model settings RGBM setting Desired Tables 100% Standard Suunto RGBM model (Default) Effect Full RGBM effects 51 RGBM setting 50% Desired Tables Attenuated RGBM model Effect Smaller RGBM effects, higher risk! 5. 10. Safety Stops Safety Stops are widely considered good diving practice for recreational diving, and are an integral part of most dive tables. The reasons for performing a Safety Stop include: reducing sub-clinical DCI, microbubble reduction, ascent control, and orientation before surfacing. The Suunto D6 displays two different types of Safety Stops: Recommended Safety Stop and Mandatory Safety Stop. Recommended Safety Stops With every dive over 10 meters, there is a three minute countdown for the Recommended Safety Stop, to be taken in the 6 - 3 m/10 ft - 20 ft range. This is shown with the STOP sign and a three-minute countdown in the center window instead of the no-decompression time. 52 WHEN STOP IS DISPLAYED, MAKE A RECOMMENDED SAFETY STOP FOR 3 MINUTES. NOTE The Recommended Safety Stop, as the name implies, is recommended. If it is ignored, there is no penalty applied to the following surface intervals and dives. 5. 10. 2. Mandatory Safety Stops When the ascent rate exceeds 12 m/40 ft per minute momentarily, or 10 meters/33ft per minute continuously, the microbubble build-up is predicted to be more than is allowed for in the decompression model. 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. 53 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. 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. 54 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. Deep stops The Suunto D6 allows you to choose a Deep Stop algorithm instead of the traditional Recommended Safety Stop. Deep Stops are safety stops that occur deeper than traditional stops, with the purpose of minimizing microbubble formation and excitation. [. . . ] If you wish, you may return the device to your nearest Suunto representative. 102 GLOSSARY Altitude dive Ascent rate ASC RATE Ascent time ASC TIME Ceiling CNS Central nervous system toxicity A dive made at an elevation greater than 300 m/1000 ft above sea level. The minimum amount of time needed to reach the surface on a decompression stop dive. On a decompression stop dive, the shallowest depth to which a diver may ascend based on computed nitrogen load. The most important of which is an epileptic-like convulsion which can cause a diver to drown. [. . . ]