Suunto D4 manual Suunto RGBM/Deep Stop Algorithm, Emergency ascents

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5.1. The Suunto RGBM/Deep Stop Algorithm

Suunto’s Reduced Gradient Bubble Model (RGBM), utilized in the Suunto D4, predicts both dissolved and free gas in the blood and tissues of divers. It is a significant advance on the classic Haldane models, which do not predict free gas. The advantage of Suunto RGBM is additional safety through its ability to adapt to a variety of situations and dive profiles.

 

 

 

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YOU ARE ADVISED TO MAKE A DEEPSTOP AT 12 M.THE SECOND INDICATOR SHOWS THAT YOU HAVE 58 SECONDS LEFT OF YOUR DEEPSTOP.

In order to optimize the response to different increased risk situations, an additional category of stop, referred to as a Mandatory Safety Stop, has been introduced. The combination of stop types depends on the user settings and the specific dive situation. To get the most from the RGBM safety benefits, refer to Section 10.2. RGBM.

5.2. Emergency ascents

In the unlikely event that the dive computer malfunctions during a dive, follow the emergency procedures provided by your certified dive training agency or, alternatively, follow these steps:

1.Assess the situation calmly and then move promptly to less than 18 m/60 ft.

2.At 18 m/60 ft, slow down your ascent rate to 10 m/33 ft per minute and move to a depth between 3 and 6 m/10 and 20 ft.

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Contents Page Getting Started with Your Suunto D4 Diving Care and Maintenance of MY Suunto Diving Computer Intellectual Property Welcome to the World of Suunto Diving INSTRU- Ments Page Any confusion resulting from neglecting to follow this users Page Selected O2% and a Maximum PO2 of 1.4 BAR Have not Personally Verified ITS Contents Dive Computer will not Accept Fractional Page Suunto D4 AT a Glance Navigating in the menusButton symbols and functions Symbol Button Press Main functions ModeDown Long Enter Setting mode Time mode settings Getting Started with Your Suunto D4Setting the alarm More than 5 secondsSetting the time Setting the dual timeSetting the date Setting the unitsSetting the backlight Setting the tonesStopwatch AC water contactsPage Before Diving Suunto RGBM/Deep Stop Algorithm Emergency ascentsDive computer limitations NitroxAudible and visual alarms Free divingAlarm type Alarm reason Oxygen alarms in Nitrox mode Alarm typeError conditions Omitted decompressionDive mode settings Setting RgbmSetting the depth alarm Setting the depth notify alarm Free mode Setting the dive-time alarmSetting the nitrox values Setting the personal/altitude adjustmentsSetting the surface time notify alarm Free mode Setting the sample rateActivation and pre-checks Setting the Deep StopsSetting the Rgbm values Accessing Dive mode Dive mode activationPage Battery power indication Diving at altitudeAlt. adjustment value Altitude range How the Altitude value is setPersonal adjustments Personal ad Condition Desired tables Recommended Safety Stops Rgbm setting Desired Tables EffectSafety Stops Mandatory Safety Stops To or below Ceiling Deep stops Basic dive data Diving in AIR mode DIVEairDiving Down Button Toggles Between Maximum Depth and Current Time Ascent rate indicator BookmarkDecompression dives Ceiling, ceiling zone, floor and decompression range Page Display below the floor Display above the floorDisplay at the ceiling zone Display above the ceilingDiving in Nitrox mode DIVEnitrox Before diving in Nitrox modeDefault nitrox settings Oxygen displaysDown Button Diving in Free mode DIVEfree Oxygen limit fraction OLFThere is no ascent rate monitoring in the Free mode Day HistoryNew one Free dive time limit Surface interval Alarms Symbol on displayAfter Diving Dive numbering AIR and Nitrox Flying after diving Free DiveRepetitive dive planning Memory mode Dive Planning mode MEMPlan See .7. Error conditions Dive numbering shown during dive planning Dive logbook MEMLogbookBeen replaced according to the instructions Free Dive History Dive history MEMHistoryScuba History Suunto Dive Manager SDM Page Page Care and Maintenance of MY Suunto Diving COM- Puter Water Contacts and Push ButtonsMaintenance FAQs Water Resistance InspectionWhat are Original Suunto ACCESSORIES? Page Battery Replacement By the warrantyDepth gauge Technical DataTemperature display Calendar clockOperating conditions Displays only in Nitrox modeLogbook/dive profile memory Tissue calculation model BatteryRgbm Diver Attention Symbol Advice to Extend Surface Interval Suunto Rgbm adaptive decompressionNo-decompression limits No-decompression time limits for various depths m No-decompression time limits for various depths ft Altitude diving Oxygen exposurePage Patent notice Intellectual PropertyCopyright Trademark 12.2. CE DisclaimersUser’s responsibility Page Warranty Period Exclusions and LimitationsAccess to Suunto warranty service Page Other important notices Limitation of Liability Disposal of the Device Glossary DAN DCI103 104 105 Customer Service Contacts Suunto Oy 10/2007