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6

PROGRAMMING NITROX MIXES

WARNING:  FO2 must be set 'before each' nitrox dive.

The DataPlus can be used either as an Air computer or a Nitrox computer.  To
program the percentage O2, press and hold the control button when 'FO2' - 'Air'
appears during the Surface Sequence.  The percentage O2 will advance 1% per
second from 21 to 50 (%) and display 'Air', then repeat until you release the
button.

If you are using Air as your breathing gas, set FO2 for 'Air', or leave it set for
'Air' after activation.  When set with an FO2 value of 'Air', the DataPlus will
perform calculations the same as if FO2 were set for 21% O2, internally account-
ing for oxygen loading for any subsequent Nitrox dives.  Oxygen related displays,
warnings, and the O2 bar graph will not appear on the LCD display for that dive
(Fig. 5), or subsequent dives, unless FO2 is set for a numerical value (21 to 50).

You can program the DataPlus for enriched nitrogen-oxygen (nitrox) mixtures of
21% to 50% oxygen (O2) before each nitrox dive.  If FO2 is set at a value of 21%,
the unit will remain set as a '21% Nitrox computer' for subsequent nitrox dives
until FO2 is set to a higher value.  Once FO2 is set to a value 'greater than' 21%
for a nitrox dive, the FO2 value displayed during the post dive Surface Sequence
that appears 10 minutes after that dive will be 50 (Fig. 6).

FT

O2

FT

MAX

GLO

DATA

PLUS

Fig. 5 - No Decompression

Dive Mode (Air)

Fig. 6 - FO2 = 50%

O2

DATA

PLUS

GLO

Содержание DATA PLUS

Страница 1: ...owner s guide DATA PLUS OCEANIC R3 ...

Страница 2: ... ii ...

Страница 3: ...First Always Make The Deepest Part Of Every Dive First Check Your Computer Often During the Dive Do A Safety Stop On Every Dive Allow Adequate Surface Interval Between Each Dive Allow Adequate Surface Interval Between Each Day Of Diving 12 Hours Or Until Your Computer Clears Read And Understand This Owner s Guide Thoroughly Before Using the DataPlus Responsible ...

Страница 4: ...use by military and commercial divers It should NOT be utilized for any competitive or repetitive square wave or decompression diving as it is intended solely for recreational use and no decompression multilevel diving As with all underwater life support equipment improper use or misuse of this product can cause serious injury or death Never participate in sharing or swapping of a dive computer Co...

Страница 5: ...proper general function Labor charges for the annual inspection are not covered by the warranty You must provide a copy of the original sales receipt and a copy of the owner s portion of the warranty registration card including the annual service record to obtain warranty service Statement of Limitations General Warranty does not cover damage from accident abuse battery leakage tampering lack of p...

Страница 6: ...all registered and unregistered trademarks of Oceanic All rights are reserved PATENT NOTICE U S Patents have been issued or applied for to protect the following design features Graphic Diver Interface Pre Dive Planning Sequence Data Sensing and Processing Device U S Patent no 4 882 678 Tissue Loading Bar Graph U S Patent no 4 882 687 and Variable Ascent Rate Indicator Bar Graph U S Patent no 5 156...

Страница 7: ...Nitrox Mixes FO2 6 Making a Dive 7 After the Dive 11 Knowing When to Fly 13 Altitude Diving 14 Sharing the DataPlus 15 LCD Display Legend 16 DETAILED OPERATIONS 17 Informational Displays 18 Depth Display 18 Time Display 19 Graphic Diver Interface 21 Tissue Loading Bar Graph TLBG 21 Oxygen Accumulation O2 Bar Graph 22 ...

Страница 8: ...DPS 29 No Decompression Dive Mode 31 Decompression Dive Mode 33 High PO2 Dive Mode 34 Violation Modes 34 Gauge Mode 35 Ascending to the Surface 35 Dive Log Mode 36 Time to Fly Mode 38 External Access EA Mode 40 Backlight Feature 41 Ambient Temperature Display 41 Operating Temperature 42 HANDLING THE EXTREMES 43 Emergency Decompression 44 Caution Zone TLBG 46 ...

Страница 9: ...ation 55 Exceeding Maximum Operating Depth 56 Oxygen Exposure 57 High O2 Accumulation 59 High PO2 Dive Mode 60 Unexpected Loss of Displayed Information 61 CARE MAINTENANCE 63 Care and Cleaning 64 Annual Dealer Inspections Factory Service 66 Obtaining Factory Service 67 Battery Life 68 Low Battery Condition 69 Battery Removal 69 Battery Installation 71 CONTENTS CONTINUED ...

Страница 10: ...CE 75 More About Flying After Diving 76 More About Altitude Diving 77 More About Nitrox Diving 78 Multiple Tissue Tracking 80 No Decompression Limits 82 Repetitive Decompression Diving 82 Responsible Computer Diving 84 Specifications 85 Glossary 88 Index 92 DataPlus Service Record 94 R E S P O NSIBLE D I V E R ...

Страница 11: ...FEATURES OVERVIEW ...

Страница 12: ...plays As you progress through this instructional guide you will become familiar with all of the unique functions and features available and see examples of the dis plays that you could expect to see in the DataPlus various operational modes The initial time that you invest becoming acquainted with your new DataPlus will be returned as you enjoy your underwater activities with the comfort that your...

Страница 13: ... that the rules you learned in your basic scuba certification course still apply to the diving you will do while using a dive computer some will become even more important Technology is no substitute for common sense and a dive computer only provides the person using it with data not the knowledge to use it WARNING Inspect your DataPlus prior to every dive checking for any signs of the entrance of...

Страница 14: ...rately Depressing the button during the Dive Mode will activate the unit s temperature and Oceanglo backlight features After a diagnostic check that lasts several seconds the DataPlus advances through a sequence of displays called the Surface Sequence that will repeat continually until a dive is made or until the unit shuts off automatically First to appear will be Surface Mode followed by FO2 the...

Страница 15: ...0 BAR for the FO2 value set If FO2 is set for Air the PO2 display will not appear Next the DataPlus advances to a Plan Mode Fig 4 referred to as the Pre Dive Planning Sequence or PDPS signified by the PDPS icon Fig 4a The PDPS displays a sequence of depths from 30 to 160 feet 9 to 48 meters in 10 foot 3 meter increments Each depth is displayed with its corresponding available adjusted no decompres...

Страница 16: ...internally account ing for oxygen loading for any subsequent Nitrox dives Oxygen related displays warnings and the O2 bar graph will not appear on the LCD display for that dive Fig 5 or subsequent dives unless FO2 is set for a numerical value 21 to 50 You can program the DataPlus for enriched nitrogen oxygen nitrox mixtures of 21 to 50 oxygen O2 before each nitrox dive If FO2 is set at a value of ...

Страница 17: ...gnified by the No Decompression icon Fig 7a Displayed are current depth elapsed dive time and the Elapsed Dive Time icon no decompression dive time remaining maximum depth reached during the dive and the Max Depth icon nitrogen loading as the Tissue Loading Bar Graph oxygen accumulation as the O2 bar graph and ascent rate as the Variable Ascent Rate Indicator bar graph To make it easy to check you...

Страница 18: ...tilevel diving The TLBG also assists you with managing decompression by filling a large red ceiling stop required segment This is explained in detail in the Handling the Extremes section The TLBG gives a visual representation of just how close you are to the no decompression limit with a yellow Caution C Z Zone This Caution Zone portion of the TLBG Fig 9a allows you to make a decision regarding sa...

Страница 19: ...splayed Fig 11a flashing as a warning until PO2 de creases below 1 60 BAR If additional O2 exposure is still allowed for that dive or 24 hour period a gap Fig 11b will be present between those bar graph segments Fig 11c and the red segment This is explained in more detail on page 23 and in the Handling the Extremes section When rising towards the surface the Variable Ascent Rate Indicator Fig 12 s...

Страница 20: ...mes and vertical ascent time calculated for a rate of 60 feet 18 meters per minute You must stay at or slightly below the ceiling stop depth indicated on the digital display until the next shallower required ceiling stop depth appears before ascending any further or you will increase your risk of decompression sickness After displaying the Decompression Dive Mode for 12 seconds an Alternate Displa...

Страница 21: ...Air or 21 prior to the dive it will stay set for Air or 21 respectively unless set to a higher value prior to the next dive If it was set for a value of FO2 greater than 21 prior to the dive the FO2 value displayed will be 50 and subsequent dives will be calculated based on 50 O2 for oxygen calculations and 21 O2 79 nitrogen for nitrogen calculations unless you set FO2 for another value You must s...

Страница 22: ...screens are displayed for each dive one showing data associated with nitrogen and the other showing data associated with oxygen The Nitrogen Log Fig 16 displays the dive number surface interval prior to the dive and Surface mode icon maximum depth and Max Depth icon elapsed dive time and Elapsed Dive Time icon maximum ascent rate VARI attained at any time during the dive and end of dive tissue loa...

Страница 23: ... page 76 in the Reference section The DataPlus tracks how much surface time has elapsed since you surfaced from your latest dive The Time to Fly Mode begins a 24 hour countdown that starts 10 seconds after a dive Fig 18 During the first 12 hours the countdown appears for several seconds after the Surface Mode during the Surface Sequence During the second 12 hours of the countdown only the word FLY...

Страница 24: ...610 meters depth calibration of the unit is auto matically changed to read in feet of freshwater rather than feet of seawater The DataPlus will not activate at altitudes above 14 000 feet 4 268 meters More about altitude diving and NOAA guidelines is presented on page 77 in the Reference section WARNING Until it has shut itself off you must not use the DataPlus at a different altitude than the alt...

Страница 25: ... or share your computer with another diver underwater It is impossible for two divers to stay precisely together underwater and your computer s dive profile tracking of previous dives will be pertinent to you only Nitrogen loading of a second user may be significantly different and thus swapping dive computers could lead to inaccurate and potentially dangerous predictions of decompression status T...

Страница 26: ...Decompression zone 2a O2 Bar Graph Green safe O2 zone 2b O2 Bar Graph Yellow Caution zone 2c O2 Bar Graph Red Danger zone 3a VARI Green rate speed normal safe 3b VARI Yellow rate speed excessive 3c VARI Red rate speed Too Fast 4 Icon Operating Mode See Detail A 5 Icon Maximum Depth 6 Icon Low Battery 7 Icon Log Mode 8 Icon Temperature 9 Icon Deco Stop Ceiling 10 Icon Elapsed Dive Time 11 Control B...

Страница 27: ...DETAILED OPERATIONS ...

Страница 28: ...ortion of the LCD Fig 20a indicates depths from 0 to 330 feet 99 5 meters in 1 foot 5 meter increments In the event that you descend deeper than 330 feet 99 5 meters this display will show three dashes Fig 21a to indicate until you ascend to 330 feet 99 5 meters or shallower that you have gone out of range When the control button is depressed during a dive current Temperature will be displayed in ...

Страница 29: ...ear for 3 seconds when the screen toggles to the Alternate display once every 15 seconds while in the Decompression Mode During a nitrox dive if the value of PO2 reaches 1 40 BAR the PO2 value will remain on display Fig 22a until the level decreases below 1 40 BAR Max Depth and Bottom Time or Stop Depth and Stop Time will not be displayed until the PO2 value decreases below 1 40 BAR TIME DISPLAY T...

Страница 30: ...ve Time that will be displayed is 1 59 hr min When Elapsed Dive Time exceeds 1 hour and 59 minutes the display will show 1 for the remainder of that dive and in the log for that dive Time displays are shown in hour minute format i e 1 06 represents one hour and six minutes not 106 minutes The colon that separates hours and minutes blinks once per second when the display is indicating real time suc...

Страница 31: ... times will reduce your exposure to decom pression sickness oxygen toxicity and the effects of an excessive ascent rate TISSUE LOADING BAR GRAPH TLBG The Tissue Loading Bar Graph TLBG represents nitrogen loading showing your relative no decompression or decompression status As your depth and bottom time increase segments will add to the graph in an arc beginning from the lower left As you ascend t...

Страница 32: ...compres sion situation Prior to a repetitive nitrox dive if all segments of the TLBG are displayed during the Pre Dive Planning Sequence PDPS and no segments of the O2 bar graph are displayed that next dive is calculated to be controlled by nitrogen loading WARNING Oceanic advocates responsible diving practices consistent with your individual level of formal training and experience and does not re...

Страница 33: ...e PO2 and PO2 value digital displays will flash Fig 28 as a warning until the partial pressure of O2 decreases below 1 60 BAR PO2 and the PO2 value will continue to appear as digital displays until the partial pres sure of O2 decreases below a value of 1 40 BAR During the time that PO2 is greater than 1 60 BAR and the red segment of the O2 bar graph is flashing as a warning the green and yellow se...

Страница 34: ...eter Green is a normal rate yellow is a caution rate and red is Too Fast When your ascent rate exceeds the maximum recom mended rate of 60 feet 18 meters per minute the VARI segments will enter the red zone and flash once per second until your ascent speed is slowed The actual speeds that the VARI segments represent are shown above Fig 29 Ensure that you are familiar with all displays and bar grap...

Страница 35: ... Planning Sequence PDPS Surface Mode Dive Log Mode Time to Fly Mode and External Access EA Mode Diagnostic Dive Log and EA Modes are accessed by pressing the control button Underwater modes include the No Decompression Dive Mode Temperature Mode Decompression Dive Mode and Alternate Decompression Dive Mode High PO2 Dive Mode Violation Mode and Gauge Mode You will not see Decompres sion Dive High P...

Страница 36: ...untdown from 9 to 0 Fig 31 During the countdown the DataPlus checks its display functions and battery voltage to ensure everything is working properly then changes to the Surface Mode If battery voltage is below the level sufficient for a day s operation the Battery icon will be displayed flashing Below 15 of rated voltage all graphic displays will shut off except the Battery icon that will flash ...

Страница 37: ...en loading as the O2 bar graph if the previous dive was a nitrox dive At the end of a dive when you ascend to 3 feet 1 meter or shallower the DataPlus will automatically enter Surface Mode Fig 33 and begin counting your Surface Interval SI This first 10 minutes is in affect a transition period The main Time display will start to count Surface Interval with the colon flashing The Dive Mode icon wil...

Страница 38: ...lapsed the Surface Mode icon stops flashing Fig 34 and the dive number will advance to show the number of the next dive The Surface Sequence will advance screens from Surface Mode to Time to Fly to FO2 to PO2 to PDPS and repeat once per minute until the next dive is made or until the unit enters Fly Mode after 12 hours Also that dive is entered into the memory of the Dive Log and a subsequent desc...

Страница 39: ...WARNING The PDPS predicts only no decompression times for subsequent dives Depending on cylinder size breathing gas consumption and oxygen accumulation you may have less time available than shown in the PDPS because of breathing gas quantity or other limitations As you will recall from page 5 after activation and diagnostics the unit will enter the Surface Mode for several seconds then display FO2...

Страница 40: ...ded TLBG if nitrogen controlled or the loaded O2 bar graph and O2 symbol if O2 con trolled No Decompression times are only displayed for depths where there are at least 3 minutes of dive time available at the depth taking into account a descent rate of 120 feet 36 meters per minute Depths greater than the maxi mum depth that can be achieved with a PO2 of 1 60 BAR will not be displayed WARNING The ...

Страница 41: ...than Air No Decompression Dive Time Remaining is the maximum amount of time you can stay at your current depth before entering a decompression situation The No Decompression Time is calculated based on the amount of nitrogen absorbed by 12 hypothetical tissue compartments The rates each of these compartments absorb and release nitrogen is mathemati cally modeled and compared against a maximum allo...

Страница 42: ...te of PADI commissioned these experiments and now uses the findings in the Recreational Dive Planner distributed by PADI As your depth and bottom time increase the TLBG will fill with segments in a clockwise direction from the lower left toward the upper left to represent the absorption of nitrogen If the TLBG passes the yellow caution C Z zone Fig 38a you will have exceeded the No Decompression L...

Страница 43: ...ive limits are exceeded causing the TLBG to pass the yellow caution C Z zone and enter the red decompression DECO zone Fig 39b Once every 15 seconds while in the Decompression Dive Mode an alternate display Fig 40 will appear on screen for 3 seconds displaying Maximum Depth and Elapsed Dive Time for that dive During a dive in which you inadvertently enter decompression you must focus on reducing y...

Страница 44: ... display until the partial pres sure of oxygen decreases below a value of 1 40 BAR In the event that you enter High PO2 Dive Mode you must focus on reducing the partial pressure of oxygen by slowly ascending to a shallower depth at a safe rate Oxygen Exposure High O2 and High PO2 Dive Mode are more fully described beginning on page 57 in the Handling the Extremes section VIOLATION MODES The DataPl...

Страница 45: ... SURFACE While ascending to shallower depths the segments that have filled up the TLBG Fig 43 will begin to recede in a counter clockwise direction offering a graphic representation of your multilevel diving capability If you entered the Decom pression Mode you must not complete your ascent until the TLBG is at least inside the yellow Caution zone If you have not entered the Decompres sion Mode a ...

Страница 46: ... 20 fpm 0 to 6 mpm 1 segment 21 to 30 fpm 6 5 to 9 mpm 2 segments 31 to 40 fpm 9 5 to 12 mpm 3 segments 41 to 50 fpm 12 5 to 15 mpm 4 segments 51 to 60 fpm 15 5 to 18 mpm and 5 flashing segments 61 fpm 18 mpm DIVE LOG MODE Dive Log Mode identified by the Dive Log icon Fig 45a located in the upper left portion of the LCD can be accessed while on the surface using the button on the front of the modu...

Страница 47: ...ly pressing and releasing the button initiates the Automatic Dive Log Sequence that shows the Nitrogen log screen then the Oxygen log screen for each dive for approximately 4 seconds before scrolling to the previous dive s log screens To freeze the information on the display while writing it down in your logbook press and hold the control button in To view the next screen momentarily release the b...

Страница 48: ... dive TLBG tissue nitrogen loading at the time you surfaced from the dive Information provided for each dive s Oxygen Log includes Fig 47 Log Mode icon FO2 value set for the dive and FO2 symbol Maximum PO2 level reached during that dive and PO2 symbol O2 bar graph oxygen loading at the time you surfaced from the dive TIME TO FLY MODE As you should be aware from your own training the longer you wai...

Страница 49: ...2 hours the period between 12 and 24 hours after a dive the DataPlus is in a countdown mode only and must be reactivated prior to commencing a dive Remember that FO2 must be set prior to any nitrox dive After a surface interval of 12 hours you may choose to fly or travel to higher elevations provided that your dive profile s did not enter decompression If your diving involved required decompressio...

Страница 50: ...nique interactive DataPlus Simulator that enables you to view all of the displays and operating modes being described External Access Mode signified by EA Fig 50 may be entered when the control button is depressed and held in for more than 8 seconds while in the Surface Mode or during the PDPS The letters EA appear in the lower portion of the LCD display with a count down from 6 to 0 appearing at ...

Страница 51: ...e displayed for the first 2 seconds after the button is depressed Oceanic recommends that you always carry primary and backup dive lights when conducting dives that could include low light situations AMBIENT TEMPERATURE DISPLAY When the control button is depressed during a dive ambient temperature will replace the current depth on display for the 2 seconds Fig 52a To observe the value again you mu...

Страница 52: ...ange of temperatures it is possible to damage the electronics if left exposed to direct sunlight or in a hot confined space like a car trunk After the dive cover the DataPlus and keep it out of the sun If inadvertently left in the direct sun light the LCD display may become totally black If this occurs immediately immerse the DataPlus in water The display should recover its normal appear ance afte...

Страница 53: ...HANDLING THE EXTREMES ...

Страница 54: ...ave complete surface support including a redundant air supply for emergencies They also navigate very carefully throughout their dive to ensure that they begin and complete their ascent while maintaining contact with a rope or a line to the surface This is necessary for making a well con trolled ascent The DataPlus is not intended for use by military or commercial divers By making an unplanned Dec...

Страница 55: ...ed The DataPlus is designed to help you by providing a complete representation of how close you are to entering decompression In the event that you do inadvertently enter decompression the red zone of the TLBG Fig 54 the DataPlus can provide you with limited information to help you ascend to the surface if you follow the instructions given in this section Oceanic strongly recommends that you avoid...

Страница 56: ...y fill the red decom pression stop zone Once you ve entered decompression it is imperative that you immediately change the focus of your activities and begin a safe ascent toward the required decompression ceiling stop depth If you continue the dive at a depth more than a few feet deeper than the required ceiling stop depth your exposure to decompression sickness will increase and you will risk en...

Страница 57: ...s than 100 or you are in less than perfect physical shape use the Caution C Z zone as a visual reference to place a wider margin of protection between you and the No Decompression limit DECOMPRESSION DIVE MODE The DataPlus will help you to avoid and manage decompression WARNING Oceanic recommends the application of responsible diving practices and does not recommend decompression diving or diving ...

Страница 58: ...apsed dive time and Elapsed Dive Time icon The Graphic Diver Interface will continue to display the O2 bar graph if a nitrox dive the VARI bar graph and the TLBG that now acts as a Decompres sion alert warning that you must stay below the ceiling stop depth that appears as a digital display Upon entering decompression you must immediately change the focus of your dive to getting safely back to the...

Страница 59: ...lower stop depth appears Then you can ascend to but not shallower than that indicated ceiling stop depth Once you have performed the required decompression the DataPlus will switch to No Decompression Dive Mode allowing additional time underwater Though more time is theoretically available it is strongly recommended that you spend the remainder of the dive continuing to decompress at a safety stop...

Страница 60: ...ediate It is important to understand each different Violation Mode that the DataPlus can enter and how to carry out decompression procedures in the event you enter one CONDITIONAL VIOLATION MODE The DataPlus will enter the Conditional Violation Mode Fig 59 if you ascend shallower Fig 59a than the required decompression ceiling indicated by the Required Stop Depth displayed Fig 59b A momentary rise...

Страница 61: ...e obtaining off gassing credit Once the penalty time is worked off and off gassing credit begins required decompression stop depths and time will decrease toward zero and the TLBG will recede into the caution C Z zone Upon entry into the caution C Z zone the DataPlus will revert to the No Decompression Dive Mode If you stay above the required ceiling stop depth for more than 5 minutes the TLBG seg...

Страница 62: ... to the surface will still be displayed numerically in the Main Time display To get back to the surface you must safely ascend to just deeper than 60 feet 18 meters staying as close to 60 feet 18 meters as possible After waiting until the required ceiling stop depth display indicates 50 FT 15 M you can ascend to but no shallower than 50 feet 15 meters and continue decompress ing As the required ce...

Страница 63: ...ations Upon descending deeper than 330 feet 99 5 meters the TLBG will flash and the Current Depth and Max Depth displays will only indicate three dashes Fig 62 until ascent is made to a depth shallower than 330 feet 99 5 meters at which time the Current Depth display will be restored Maximum Depth will continue to display 3 dashes Exceeding Maximum Operating Depth is more fully described on page 5...

Страница 64: ...would be preceded by entering the Delayed Violation Mode previously described The DataPlus cannot accurately calculate decompression times for depths much greater than 60 feet 18 meters and offers no indication of how much time spent underwater would result in the need for greater than a 60 foot 18 meter decom pression ceiling stop depth If a ceiling much greater than 60 feet 18 meters is required...

Страница 65: ...our period a single dash will be displayed with a countdown timer beginning at 12 00 to inform you of the time remaining before normal DataPlus operation can resume with full features If a dive is made during the 24 hour period that the DataPlus is in the Gauge Mode only depth and elapsed dive time information will be displayed PERMANENT VIOLATION Entering the Immediate Violation Mode then Gauge M...

Страница 66: ...y all of its features is 330 feet 99 5 meters Upon exceeding 330 feet 99 5 meters the TLBG and O2 bar graph will flash and Depth and Max Depth displays will only indicate three dashes signifying that you are Out of Range Fig 66 The numeric depth display will not reappear until you ascend shallower than 330 feet 99 5 meters You will also enter the Delayed Violation Mode previ ously described on pag...

Страница 67: ...exposure to oxygen and the consequences of CNS Central Nervous System oxygen toxicity can be severe resulting in Gran Mal convulsions and drowning Diving with enriched nitrogen oxygen nitrox mixtures requires special training The oxygen features of the DataPlus are intended for use only by recreational divers trained for nitrox diving by an instructor certified by a recognized training agency to t...

Страница 68: ...rning Fig 67 and the PO2 level is displayed while you reduce oxygen partial pressure according to your training Once you ve exceeded the maximum PO2 limit O2 Bar Graph red zone segment flashing it is imperative that you immediately change the focus of your activi ties and begin a safe ascent to a shallower depth to reduce partial pressure of oxygen If you continue the dive at your current depth yo...

Страница 69: ...ntering the water HIGH O2 ACCUMULATION Your nitrox dive training taught you not to get too close to the oxygen tolerance limits The O2 Bar Graph provides you with a convenient graphic representa tion of your oxygen accumulation displaying the maximum of either O2 accumu lated during that dive or O2 accumulated during your repetitive dives conducted during that 24 hour period In the event that your...

Страница 70: ...Z zone as a visual reference to place a wider margin of protection between you and the O2 limits HIGH PO2 DIVE MODE The DataPlus enters the High PO2 Dive Mode Fig 69 when partial pressure of oxygen becomes equal to or greater than 1 40 BAR ATA as indicated by the PO2 value and the symbol PO2 being displayed in place of Max Depth and Elapsed Dive Time if in the No Deco Dive Mode or the required Sto...

Страница 71: ...ort the dive imme diately and surface slowly in a controlled manner If your DataPlus stops working for any reason it is important that you have anticipated this possibility and are prepared for it This is an important reason to avoid pushing the no decompression and oxygen tolerance limits and a critical reason to avoid entering decompression Regardless of your diving habits Oceanic advises you to...

Страница 72: ... represents the latest in user friendly dive computer technology it cannot force you to understand how to use it Before diving with the DataPlus be sure you thoroughly understand its functions and displays Contact your local Authorized Oceanic Dealer if you have a question Above all remember technology is not a replacement for training experience and common sense Be a Responsible Diver at all time...

Страница 73: ...CARE MAINTENANCE ...

Страница 74: ...ratches will naturally disappear under water For even more convenience and additional protection against scratches place a transparent Oceanic Instrument Lens Protector on the gauge face These and other special accessories can be purchased from your Authorized Oceanic Dealer for your DataPlus and for many other instruments CAUTION Never spray aerosols of any kind on or near the DataPlus The propel...

Страница 75: ...aPlus from dangling freely and keep it handy underwater by using the console retainers on your BC This will also help prevent damage to delicate corals or marine life Soak the DataPlus in fresh water at the end of each day of diving preferably after each dive If possible use lukewarm water to dissolve any salt crystals Salt deposits can also be dissolved using a slightly acidic vinegar water bath ...

Страница 76: ...ge 94 in the Reference section This should be signed by the Oceanic Dealer service technician after each inspection or factory service has been completed The cost of annual service is not covered under the terms of the two year limited warranty WARNING If you are in doubt about the accuracy of your DataPlus depth readings DO NOT attempt to dive with it until it has been inspected by an Authorized ...

Страница 77: ...log will be erased whenever your DataPlus receives factory service Copy all log information in your log book or download stored data to your OceanLink PC program before sending your DataPlus for factory service To obtain service from the Oceanic factory Remove the DataPlus module from its boot see instructions on page 69 Be sure to remove all accessories and send only the module Fig 71 Oceanic Ser...

Страница 78: ...upon activation and continue for 24 hours after surfacing from a dive For this reason the number of dives that you will obtain with a set of batteries is subject to the number conducted during each activation period Other variables such as the climate and the type and age of batteries actually used will also affect the number of dives possible Tests and calculations indicate that a set of lithium ...

Страница 79: ... and that you replace the batteries with new prior to any multi day dive trip that will include a profile of repetitive dives such as multiple days on a live aboard vessel WARNING Adjusted No Decompression Limits will be erased when the batteries are replaced between repetitive dives BATTERY REMOVAL If the module is in a wrist boot it will be necessary to peel the lips of the boot downward off the...

Страница 80: ...Apply a coin not a screwdriver to the recessed slot of the battery hatch and turn the hatch out counterclockwise to remove it from the housing The battery compartment should only be opened in a dry and clean environment with extreme care taken to prevent the entrance of moisture or dust Inspect the o ring for any signs of deterioration If found remove the o ring by pressing the sides with your fin...

Страница 81: ...he unit until it has received factory service BATTERY INSTALLATION Remove and check the battery hatch as previously described If necessary to replace the battery hatch o ring lightly lubricate it with silicone grease and stretch it slightly to work it down over the slotted top of the hatch DO NOT roll it over the threads Install two new 3 volt lithium batteries Duracell DL2032 Radio Shack 23 162 M...

Страница 82: ...insert the battery hatch into the housing and turn slowly clock wise by hand to ensure correct threading Turn until snug then apply a coin and tighten until secure so the outer surface of the battery hatch is flush with the outer surface of the housing FLOODED BATTERY COMPARTMENT If water or corrosion is found in the battery compartment it is best to have your DataPlus inspected and cleaned by an ...

Страница 83: ...the PDPS If a Low Battery condition is indicated return the unit to your Authorized Oceanic Dealer for a complete inspection before attempting to use it Observe the LCD display to ensure it is consistently clear and sharp in contrast throughout the screen If there are any portions of the display missing or appearing dim return the unit to your Authorized Oceanic Dealer RETURNING THE MODULE TO ITS ...

Страница 84: ...e module completely into place with your thumbs watching the alignment until it snaps into place SUMMARY Care and maintenance is simple and easy and with a small investment of your time you will help keep your DataPlus in top condition for many years of diving enjoyment Responsible ...

Страница 85: ...REFERENCE ...

Страница 86: ...ed a decompression stop flying should be delayed for at least 24 hours and if possible for 48 hours Since the 1990 UHMS guidelines were introduced data from the Diver s Alert Network DAN was introduced that resulted in DAN s position that A minimum surface interval of only 12 hours would be required in order to be reasonably assured a diver will remain symptom free upon ascent to altitude in a com...

Страница 87: ...iting 12 hours prior to exposure to atmospheric pressures equivalent to 1000 feet 330 meters above sea level or greater When repetitive dives are conducted during the same day or period of days it is suggested that the interval be increased to a minimum of 24 hours Note that land travel to higher elevations after diving must also be considered as an exposure to altitude MORE ABOUT ALTITUDE DIVING ...

Страница 88: ...m that reduces no decompression limits to add a larger zone of caution Whenever the DataPlus is manually activated at altitudes higher than 2 000 feet 610 meters it will automatically recalibrate itself to measure depth in feet of fresh water rather than feet of sea water When returning to lower altitudes diving should not be conducted until the DataPlus automatically clears of any residual nitrog...

Страница 89: ...Manual Although CNS oxygen toxicity is considered the primary con straint for higher levels of PO2 there are circumstances in which pulmonary oxygen toxicity can limit exposures CNS oxygen toxicity is not considered likely at PO2 levels below 1 30 BAR It is however related to diver s work level Performing strenuous tasks could cause the symptoms of O2 poisoning to occur at PO2 levels lower than th...

Страница 90: ...The DataPlus tracks twelve tissue compartments with half times ranging from 5 to 480 minutes The TLBG always displays the controlling compartment that is the only one important at that time Think of the TLBG as twelve separate transparent displays laid on top of one another Fig 78 page 81 The tissue compartment that has filled up fastest is the only one the viewer can see from the top At any parti...

Страница 91: ...ATA PLUS G L O F T O2 F T M A X DATA PLUS G L O F T O2 F T M A X DATA PLUS G L O F T O2 F T M A X DATA PLUS G L O F T O2 F T M A X DATA PLUS G L O Fig 78 Tissue Compartment Control Fig 79 Tissue Compartment Control Hand Over TISSUE HALF TIME 40 20 NO OF SEGMENTS 12 12v 12 v Display Seen by the Diver TISSUE HALF TIME NO OF SEGMENTS Display Seen by the Diver etc 20 12 10 40 120 11 9 80 160 R3 ...

Страница 92: ...ETITIVE DECOMPRESSION DIVING The decompression model used by the DataPlus is based on the no decompression multilevel repetitive dive schedules successfully tested by Dr Ray Rogers and Dr Michael Powell These tests did not include repetitive dives deeper than 90 feet 27 meters or Decompression dives Due to the present unavailability of statisti cal data DataPlus decompression predictions are based...

Страница 93: ...s even when performed according to the computer s calculations In the event that you must make an emergency decompression dive you must not make another dive for at least 24 hours WARNING Using the DataPlus just as using the U S Navy or other No Decompression Tables is no guarantee of avoiding decompression sickness i e the bends CONCLUSION The DataPlus is only an informational tool whose entire w...

Страница 94: ...e first When making repetitive dives it is imperative to ensure that each consecu tive dive is shallower than the one before This will allow your body s slower tissues to continue outgassing nitrogen Make the deepest part of your dive first and gradually work your way to the surface using a staircase profile The ability to perform multilevel diving is one of the most important contributions of a d...

Страница 95: ...e PO2 Limits Based on National Oceanic Atmospheric Administration NOAA tables OPERATIONAL MODES DISPLAY RANGE RESOLUTION Modes Activation Diagnostic Surface FO2 Set PO2 Max Depth Pre Dive Planning Sequence No Decompression Dive Decompression Dive Alternate Decompression Dive Violation conditional delayed immediate Temperature backlight Gauge High PO2 Dive Dive Log nitrogen oxygen Time to Fly Numer...

Страница 96: ...Timers 1 second per day Dive Counter Displays Dives 1 9 then recycles to 1 and continues 1 9 Resets to Dive 1 upon diving after a 12 hour surface time Cycles to next Dive at 5 feet 1 5 meters depth after a 10 minute surface interval Dive Log Mode Stores latest most recent 12 dives in memory for viewing After 12 dives adds latest dive to memory deletes oldest dive Each dive displays a Nitrogen Log ...

Страница 97: ...anged If set for 21 reverts to 50 after dive must manually changed Must be set to match nitrox mix before each nitrox dive External Access Mode Not used for diving used to download dive data to a PC log program Accessed during the Surface or PDPS Mode when the control button is held in for more than 8 seconds Activation when a Low Battery condition is indicated upon activation will cause the flash...

Страница 98: ...t surrounds an instrument module C Z Abbreviation for Caution Zone Caution Zone The yellow section of a bar graph that gives a visual warning of a diver s proximity to projected limits Ceiling See decompression ceiling Clean Dive A dive preceded by 24 hours of no diving activity Compartment A term applied to the hypothetical modeling of nitrogen absorption in the tissues more accurate than the ter...

Страница 99: ... dive information Dive Time Remaining A display of the time allowed before a diver must surface based on no decompression status or oxygen loading Elapsed Dive Time The total time spent underwater during a dive between 5 feet 1 5 meters on initial descent to 3 feet 1 meter on final ascent FO2 The fraction percent 100 of O2 in the breathing gas mixture Graphic Diver Interface A feature of Oceanic d...

Страница 100: ...instrument backlight feature OceanLink An Oceanic name for a high pressure hose quick disconnect device OTU Abbreviation for oxygen tolerance unit A Hamilton s Repex method term for oxygen dose Out of Range The point at which a dive computer can no longer supply correct dive information Oxygen Tolerance Dose or exposure to the physiological affects of elevated levels of oxygen Oxygen Toxicity The ...

Страница 101: ...tment Tissue Loading Bar Graph A graphic representtion of calculated nitrogen absorption displayed alongside a color coded indicator part of the Graphic Diver Interface TLBG Abbreviation for Tissue Loading Bar Graph Transducer An electromechanical device in a dive computer that acts as a depth or pressure sensor Transition Period The first 10 minutes of surface time after ascending above 3 feet 1 ...

Страница 102: ...Penalty 51 Decompression Sickness vi 44 49 76 83 Delayed Violation Mode 51 Depth Display 18 Depth sensor 65 Diagnostic Mode 4 26 Displays 85 Display Range 85 Display Resolution 85 Dive Number 85 Dive Log Mode 12 36 86 Dive Time Remaining 31 Diver s Alert Network 76 DSAT 85 E Emergency Decompression 44 INDEX A Accuracy 86 Activation 4 26 87 Algorithm vi 85 Alternate Deco Mode 10 33 48 Altitude Divi...

Страница 103: ...6 Time Display 19 Time to Fly Mode 13 38 Tissue Compartment 85 Tissue Tracking 80 Tissue Half times 80 Tissue Loading Bar Graph 8 21 46 80 86 Total Ascent Time 51 Training iii iv 3 44 57 77 U UHMS 76 U S Navy Tables 30 82 V Variable Ascent Rate Indicator 9 24 36 86 Violation Modes 34 50 W Warranty v 66 Lens Protector 64 87 Log 12 36 Loss of Display 61 Low Battery Condition 26 69 M Maintenance 64 M...

Страница 104: ...SUME THE RISKS I MAY ENCOUNTER WHILE DIVING RESPONSIBLE DIVING BEGINS WITH DIVING WITHIN THE LIMITS OF MY ABILITY AND TRAINING EVALUATING THE CONDITIONS BEFORE EVERY DIVE AND MAKING SURE THEY FIT MY PERSONAL CAPABILITIES BEING FAMILIAR WITH AND CHECKING MY EQUIPMENT BEFORE AND DURING EVERY DIVE KNOWING MY BUDDY S ABILITY LEVEL AS WELL AS MY OWN ACCEPTING THE RESPONSIBILITY FOR MY OWN SAFETY ON EVE...

Страница 105: ...DataPlus 95 ...

Страница 106: ...Doc No 12 1968 R3 7 99 2002 Design 1996 ...

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