Suunto HELO2 Other personal injury, and death, Recommended Safety Stops, Intervals and dives

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Personal adjust- Condition		Desired tables
ment value
P1	Some risk factors or conditions exist	Progressively more conservative
P2	Several risk factors or conditions
	exist
WARNING	Personal adjustment setting P0 – P-2 causes a high risk of DCI, or
	other personal injury, and death.

5.11. Safety Stops

Safety Stops are widely considered good diving practice for recreational and technical 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 orient- ation before surfacing.

The Suunto HelO2 displays two different types of Safety Stops: Recommended Safety Stop and Mandatory Safety Stop.

5.11.1. 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.

WHEN STOP IS DISPLAYED,

MAKE A RECOMMENDED SAFETY

STOP FOR 3 MINUTES.

NOTE	The Recommended Safety Stop, as the name implies, is recommen-
	ded. If it is ignored, there is no penalty applied to the following surface
	intervals and dives.

5.11.2. 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.

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Contents HelO2 Page Welcome to the World of Suunto Diving Instruments Care and Maintenance of MY Suunto Diving Computer Welcome to the World of Suunto Diving Instruments Using HelO2 with Dive Manager and Dive PlannerOr death Or professional diving activitiesPhysician regarding your fitness before diving Stop, and Rgbm adjustments are correct ASC Time symbol and the upward pointing arrowUSE BACK-UP INSTRUMENTS! Make sure that you use back-up Diving with the dive computerBefore the instrument has counted down the no-fly time Batteries. Recycle or dispose of used batteries properlySymbol Button Press Main functions Button symbols and functionsSuunto HELO2 AT a Glance Navigating in the menusDown Long Enter Setting mode Setting the time Time mode settingsSetting the date Setting the unitsSetting the tones Setting the backlightAC water contacts Planning your dives Before DivingSuunto Technical Rgbm Dive computer limitations Emergency ascentsMixed gas diving Alarm indication Alarm reason Audible and visual alarmsError conditions Alarm indicationOut of calculation limits Gas mixInstalling the wireless transmitter Wireless transmissionPairing and code selection Omitted decompressionDisplay Indication Transmitting dataSetting the gases Mixed GAS Dive mode settingsDive Setting the dive-time alarm Setting the depth alarmSetting the personal/altitude adjustments Before you have ascended above this depthSetting the tank pressure alarm Setting the sample rateSetting the tank pressure Setting the HP codeDive mode activation Accessing Dive modeActivation and pre-checks Alt. adjustment value Altitude range Battery power indicationDiving at altitude Personal adjust- Condition Desired tables Ment value Personal adjustmentsHow the Altitude value is set Before divingRecommended Safety Stops Safety StopsMandatory Safety Stops Other personal injury, and deathDeep stops Diving-related information DivingBasic dive data Bookmark Ascent rate indicatorDecompression dives Than at the ceiling Ceiling, ceiling zone, floor and decompression rangeDisplay below the floor Accident, you should stay somewhat below the ceilingDisplay above the floor Display at the ceiling zoneBefore diving in Mixed GAS mode Diving in Mixed GAS modeDefault gas mix settings Oxygen and helium displaysGas change and multiple breathing gas mixes Oxygen limit fraction OLFDiving in Gauge mode After Diving Alarms Symbol on displaySurface interval Dive numberingDive Planning mode PLANnodec Plan modeRepetitive dive planning Flying after divingMemory mode PLANNoDec modeMixed GAS mode, it does not affect the calculations Dive numbering shown during dive planningDive logbook MEMLogbook Suunto Dive Planner SDP Dive historySuunto Dive Manager SDM Dive Planner. It ensures that you have a valid decompressionPage Water Contacts and Push Buttons Care and Maintenance of MY Suunto Diving ComputerBattery replacement and strap kits must be used FAQsWarranty Battery kit Battery ReplacementReplacing the battery Required toolsWireless transmitter battery replacement Battery compartment lid, indicating a leakMade in a proper manner to avoid any leakage of water into TransmitterStalling the transmitter battery Transmitter battery kitPage Technical Data Rgbm BatterySuunto Technical Rgbm decompression model Diver safety and Suunto Technical Rgbm modelAfter dive planning Oxygen exposure Altitude divingCopyright Trademark Intellectual PropertyPatent notice User’s responsibility Disclaimers12.2. CE Exclusions and Limitations Warranty PeriodOther important notices Access to Suunto warranty serviceLimitation of Liability Page Disposal of the Device EAD EAN GlossaryNo DEC Time Copyright Customer Service ContactsPage TWO Year Warranty Page Page Suunto Oy 4/2009