Suunto HELO2 manual How the Altitude value is set, Before diving, Personal adjustments

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Alt. adjustment value		Altitude range
A2		1500 - 3000 m / 5000 - 10 000 ft
NOTE	Section 5.9.4. Setting the personal/altitude adjustments describes
	how the Altitude value is set.
WARNING	Traveling to a higher elevation can temporarily cause a change in the
	equilibrium of dissolved nitrogen in the body. It is recommended that
	you acclimatize to the new altitude by waiting at least three hours
	before diving.

5.10.5. Personal adjustments

There are personal factors that can affect your susceptibility to DCI, which you can predict in advance, and input into the decompression model. Such factors vary between divers and also for the same diver from one day to another. The five-step Personal Adjustment setting is available if a more conservative or aggressive dive plan is desired.

The personal factors which tend to increase the possibility of DCI include, but are not limited to:

•cold exposure - water temperature less than 20 °C/68 °F

•below average physical fitness level

•fatigue

•dehydration

•previous history of DCI

•stress

•obesity

•patent foramen ovale (PFO)

•exercise on or after dive

This feature is used to adjust the computer to be more conservative, according to personal preference, by entering the suitable Personal Adjustment setting with the help of Table 5.5, Personal Adjustment settings. In ideal conditions, retain the default setting, P0. If conditions are more difficult, or any of the factors which tend to increase the possibility of DCI exist, select P1, or even the most conservative P2. For very experienced divers willing to take high personal risks and full responsibility of their own condition, two negative values of the personal adjustments, P-2 and P-1, exist.The dive computer then adjusts its mathem- atical model according to the entered Personal Adjustment setting, giving shorter no-de- compression times.

Table 5.5. Personal Adjustment settings
Personal adjust- Condition		Desired tables
ment value
P-2	Ideal conditions, excellent physical	Progressively less conservative
	fitness, highly experienced with a lot
	of dives in the near past
P-1	Ideal conditions, good physical fit-
	ness, well experienced with dives in
	the near past
P0	Ideal conditions	Default

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Contents HelO2 Page Welcome to the World of Suunto Diving Instruments Care and Maintenance of MY Suunto Diving Computer Using HelO2 with Dive Manager and Dive Planner Welcome to the World of Suunto Diving InstrumentsOr professional diving activities Or deathPhysician regarding your fitness before diving ASC Time symbol and the upward pointing arrow Stop, and Rgbm adjustments are correctUSE BACK-UP INSTRUMENTS! Make sure that you use back-up Diving with the dive computerBatteries. Recycle or dispose of used batteries properly Before the instrument has counted down the no-fly timeButton symbols and functions Symbol Button Press Main functionsSuunto HELO2 AT a Glance Navigating in the menusDown Long Enter Setting mode Time mode settings Setting the timeSetting the date Setting the unitsSetting the backlight Setting the tonesAC water contacts Before Diving Planning your divesSuunto Technical Rgbm Emergency ascents Dive computer limitationsMixed gas diving Audible and visual alarms Alarm indication Alarm reasonAlarm indication Error conditionsOut of calculation limits Gas mixWireless transmission Installing the wireless transmitterPairing and code selection Omitted decompressionTransmitting data Display IndicationMixed GAS Dive mode settings Setting the gasesDive Setting the depth alarm Setting the dive-time alarmSetting the personal/altitude adjustments Before you have ascended above this depthSetting the sample rate Setting the tank pressure alarmSetting the tank pressure Setting the HP codeAccessing Dive mode Dive mode activationActivation and pre-checks Battery power indication Alt. adjustment value Altitude rangeDiving at altitude Personal adjustments Personal adjust- Condition Desired tables Ment valueHow the Altitude value is set Before divingSafety Stops Recommended Safety StopsMandatory Safety Stops Other personal injury, and deathDeep stops Diving Diving-related informationBasic dive data Ascent rate indicator BookmarkDecompression dives Ceiling, ceiling zone, floor and decompression range Than at the ceilingAccident, you should stay somewhat below the ceiling Display below the floorDisplay above the floor Display at the ceiling zoneDiving in Mixed GAS mode Before diving in Mixed GAS modeDefault gas mix settings Oxygen and helium displaysOxygen limit fraction OLF Gas change and multiple breathing gas mixesDiving in Gauge mode Alarms Symbol on display After DivingSurface interval Dive numberingPlan mode Dive Planning mode PLANnodecRepetitive dive planning Flying after divingPLANNoDec mode Memory modeMixed GAS mode, it does not affect the calculations Dive numbering shown during dive planningDive logbook MEMLogbook Dive history Suunto Dive Planner SDPDive Planner. It ensures that you have a valid decompression Suunto Dive Manager SDMPage Care and Maintenance of MY Suunto Diving Computer Water Contacts and Push ButtonsFAQs Battery replacement and strap kits must be usedWarranty Battery Replacement Battery kitReplacing the battery Required toolsBattery compartment lid, indicating a leak Wireless transmitter battery replacementMade in a proper manner to avoid any leakage of water into TransmitterTransmitter battery kit Stalling the transmitter batteryPage Technical Data Battery RgbmDiver safety and Suunto Technical Rgbm model Suunto Technical Rgbm decompression modelAfter dive planning Altitude diving Oxygen exposureIntellectual Property Copyright TrademarkPatent notice Disclaimers User’s responsibility12.2. CE Warranty Period Exclusions and LimitationsAccess to Suunto warranty service Other important noticesLimitation of Liability Page Disposal of the Device Glossary EAD EANNo DEC Time Customer Service Contacts CopyrightPage TWO Year Warranty Page Page Suunto Oy 4/2009