Suunto HELO2 manual No DEC Time

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No decompression dive

NO DEC TIME

OEA = EAN = EANx

OLF

OTU

Oxygen tolerance unit

Oxygen limit fraction

O2%

Oxygen partial pressure

PFO

PO2

RGBM

Reduced Gradient Bubble Model Repetitive dive

Residual nitrogen

SURF TIME

Surface interval time

Technical dive

Tissue group

Trimix

UHMS

Whole-body toxicity

Any dive which permits a direct, uninterrupted ascent to the surface at any time.

Abbreviation for no decompression time limit.

Abbreviations for oxygen enriched air nitrox.

Abbreviation for oxygen limit fraction.

Abbreviation for oxygen tolerance unit.

Used to measure the whole-body-toxicity.

A term used by Suunto for the values displayed in the oxygen toxicity bar graph. The value is either the CNS% or the OTU%.

Oxygen percentage or oxygen fraction in the breathing gas. Standard air has 21% oxygen.

Limits the maximum depth to which the nitrox mixture can be safely used. The maximum partial pressure limit for enriched air diving is 1.4 bar. The contingency partial pressure limit is 1.6 bar. Dives beyond this limit risk immediate oxygen toxicity.

Abbreviation for patent foramen ovale. It is a form of congenital heart defect that enables blood flow between the left and right atria via the interatrial septum.

Abbreviation for oxygen partial pressure.

Abbreviation for Reduced Gradient Bubble Model.

Modern algorithm for tracking both dissolved and free gas in divers.

Any dive whose decompression time limits are affected by residual nitrogen absorbed during previous dives.

The amount of excess nitrogen remaining in a diver after one or more dives.

Abbreviation for surface interval time.

Elapsed time between surfacing from a dive and beginning a descent for the subsequent repetitive dive.

A dive made with two or more breathing gas mixes.

Theoretical concept used to model bodily tissues for the construction of decom- pression tables or calculations.

A breathing gas mix of helium, oxygen and nitrogen.

Abbreviation for Undersea and Hyperbaric Medical Society.

Another form of oxygen toxicity, which is caused by prolonged exposure to high oxygen partial pressures. The most common symptoms are irritation in the lungs, a burning sensation in the chest, coughing and reduction of the vital capacity. Also called Pulmonary Oxygen Toxicity. See also OTU.

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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