Suunto HELO2 manual After Diving, Alarms Symbol on display, Surface interval, Dive numbering

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7. AFTER DIVING

Once back at the surface, Suunto HelO2 continues to provide post-dive safety information and alarms. Calculations to enable repetitive dive planning also help to maximize diver safety.

Table 7.1. Alarms
Symbol on display	Indication

Diver Attention Symbol - Extend Surface Interval

Violated Decompression Ceiling or Too Long Bottom Time

Do Not Fly Symbol

7.1. Surface interval

An ascent to any depth shallower than 1.2 m/4 ft will cause the DIVING display to be re- placed by the SURFACE display:

IT IS 15 MINUTES SINCE YOU SURFACED FROM A 6-MINUTE DIVE. THE PRESENT DEPTH IS 0.0 M. THE AIRPLANE SYMBOL AND NO-FLY VALUE INDICATE THAT YOU SHOULD NOT FLY FOR 20

HOURS.

Or, in the alternative displays, the following information will be shown:

•maximum depth of last dive in meters/feet

•dive time of last dive in minutes, shown as DIVE TIME

•the current time, shown as TIME

•the current temperature in °C/°F

If set to MIXED GAS mode, the following information will also be shown:

•the oxygen percentage labeled O2%

•the helium percentage labeled He%

•the oxygen partial pressure labeled PO2

•the current oxygen toxicity exposure labeled OLF

7.2. Dive numbering

Several repetitive dives are considered to belong to the same repetitive dive series when the dive computer has not counted the no-fly time to zero. Within each series, the dives are given individual numbers. The first dive of the series will be numbered as DIVE 1, the second as DIVE 2, the third as DIVE 3, etc.

If you start a new dive with less than 5 minutes of surface interval time, the dive computer interprets this as a continuation of the previous dive and the dives are considered to be the same. The diving display will return, the dive number will remain unchanged, and the dive time will begin where it left off. After 5 minutes on the surface, subsequent dives are, by definition, repetitive. The dive counter displayed in the Planning mode will increment to the next number if another dive is made.

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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 death Or professional diving activitiesPhysician regarding your fitness before diving USE BACK-UP INSTRUMENTS! Make sure that you use back-up ASC Time symbol and the upward pointing arrowStop, and Rgbm adjustments are correct Diving with the dive computerBatteries. Recycle or dispose of used batteries properly Before the instrument has counted down the no-fly timeSuunto HELO2 AT a Glance Button symbols and functionsSymbol Button Press Main functions Navigating in the menusDown Long Enter Setting mode Setting the date Time mode settingsSetting the time Setting the unitsSetting the tones Setting the backlightAC water contacts Planning your dives Before DivingSuunto Technical Rgbm Dive computer limitations Emergency ascentsMixed gas diving Audible and visual alarms Alarm indication Alarm reasonOut of calculation limits Alarm indicationError conditions Gas mixPairing and code selection Wireless transmissionInstalling the wireless transmitter Omitted decompressionTransmitting data Display IndicationSetting the gases Mixed GAS Dive mode settingsDive Setting the personal/altitude adjustments Setting the depth alarmSetting the dive-time alarm Before you have ascended above this depthSetting the tank pressure Setting the sample rateSetting the tank pressure alarm Setting the HP codeDive mode activation Accessing Dive modeActivation and pre-checks Alt. adjustment value Altitude range Battery power indicationDiving at altitude How the Altitude value is set Personal adjustmentsPersonal adjust- Condition Desired tables Ment value Before divingMandatory Safety Stops Safety StopsRecommended Safety Stops Other personal injury, and deathDeep stops Diving-related information DivingBasic dive data Bookmark Ascent rate indicatorDecompression dives Ceiling, ceiling zone, floor and decompression range Than at the ceilingDisplay above the floor Accident, you should stay somewhat below the ceilingDisplay below the floor Display at the ceiling zoneDefault gas mix settings Diving in Mixed GAS modeBefore diving in Mixed GAS mode Oxygen and helium displaysOxygen limit fraction OLF Gas change and multiple breathing gas mixesDiving in Gauge mode Surface interval Alarms Symbol on displayAfter Diving Dive numberingRepetitive dive planning Plan modeDive Planning mode PLANnodec Flying after divingMixed GAS mode, it does not affect the calculations PLANNoDec modeMemory mode 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 ButtonsBattery replacement and strap kits must be used FAQsWarranty Replacing the battery Battery ReplacementBattery kit Required toolsMade in a proper manner to avoid any leakage of water into Battery compartment lid, indicating a leakWireless transmitter battery replacement TransmitterTransmitter battery kit Stalling the transmitter batteryPage Technical Data Battery RgbmSuunto Technical Rgbm decompression model Diver safety and Suunto Technical Rgbm modelAfter dive planning Altitude diving Oxygen exposureCopyright Trademark Intellectual PropertyPatent notice User’s responsibility Disclaimers12.2. CE Warranty Period Exclusions and LimitationsOther important notices Access to Suunto warranty serviceLimitation 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