Radio Shack 12-1686 Specifications Page 1

owner's guideDATA PLUS™OCEANIC®R3

®xCONTENTS (CONTINUED)Flooded Battery Compartment ...72Inspection...

®90GLOSSARY (cont'd)Multiplexing Display - A display on an instrument that alternates to show different information.Multilevel Dive - A type of d

DataPlus91GLOSSARY (cont'd)Safety Stop - A depth at which a diver may choose, but is not required, to pause during ascent to allow ab-sorbed nitr

®92External Access Mode 40, 87FFactory Service 67Flooded Battery Compartment 72Flying After Diving 13, 38, 76FO2 Display 5GGauge Mode

DataPlus93Operational Modes 25Operating Temperature 42Out Of Range 18, 53, 56Oxygem Exposure 57, 79, 80Oxygen Log 12, 38Oxygen Tolerance

®94DATAPLUS SERVICE RECORDSerial No.Date of PurchasePurchased fromTo be filled in by Authorized Oceanic Dealer: Date Service Performed Deal

DataPlus95

Doc. No. 12-1968,R3 (7/99)© 2002 Design 1996

FEATURESOVERVIEW

®2O2GLODATAPLUSDATA PLUSINTRODUCTIONWelcome to Oceanic and thank you for choosing the DataPlus!Your new DataPlus presents the information that you ne

DataPlus3It is extremely important that you:• Read this owner's guide in sequence and understand it completely before attempting to use the

®4O2DATAPLUSGLOREGULATOR ATTACHMENTIf you have purchased the DataPlus in a console version, you will need to have itattached to your regulator first s

DataPlus5Surface Time display will start counting up from 0:00. If no dive is made within2 hours (2:00) after activation, the unit will automatically

®6PROGRAMMING NITROX MIXESWARNING: FO2 must be set 'before each' nitrox dive.The DataPlus can be used either as an Air computer or a Nitrox

DataPlus7FTO2FTMAXGLODATAPLUSFO2 must be reset for each repetitive nitrox dive, or the value will automaticallybe 50 and the dives will be calculated

®8O2GLODATAPLUS When underwater, you can quickly focus on the three bar graphs to make surethat they are in the green. You can quickly verify that yo

DataPlus9O2GLODATAPLUSeither per dive allowable O2 or 24 hour period allowable O2. As your exposure,oxygen tolerance dose (OTU), increases during the

®ii

®10FTO2FTMAXGLODATAPLUScompleting your ascent. Many divers do this to provide a wider zone of cautionfrom the no decompression limit.If your depth or

DataPlus11AFTER THE DIVEAfter reaching 3 feet (1 meter) upon ascent, the Surface Mode display (Fig. 15)will replace the Dive Mode display for 10 minut

®12tions on nitrogen loading, only the TLBG will be displayed, or if calculations arebased upon oxygen loading, only the O2 bar graph will be displaye

DataPlus13KNOWING WHEN TO FLYDue to the present lack of a complete data set derived from actual humantesting, there are different recommendations cite

®14ALTITUDE DIVINGThe mathematical model within the DataPlus accounts for the reduced NoDecompression time available at higher elevations based on NOA

DataPlus15SHARING THE DATAPLUSWARNING: Never participate in sharing or swapping of a divecomputer. Doing so may result in injury or death.The DataPl

®16FTMMAXO2MFTMAXDATAPLUSGLOSurface PDPSNo Deco DiveDetail 'A' - Operating Mode IconsDeco DiveLCD Display Legend1b1c2c2b2a1a3b3a3c4576910111

DETAILEDOPERATIONS

®18FTO2FTMAXGLODATAPLUSINFORMATIONAL DISPLAYSEach DataPlus numeric or graphic display represents a unique piece of informa-tion. It is imperative tha

DataPlus19FTO2GLODATAPLUSFTO2FTMAXGLODATAPLUSindicates the Maximum Depth reached during that dive. In the event that youdescend deeper than 330 feet

DataPlusiiiRESPONSIBLE COMPUTER DIVING◆ Always Plan Each Dive◆ Always Limit Your Dive to the Level of YourTraining and Experience◆ Always Make Your De

®20segments of the LCD include - FO2 set point value, 'EA' (External Access), and'FLY' (during the first 12 hours).A second time d

DataPlus21GRAPHIC DIVER INTERFACE™NOTE: Displays associated with oxygen and the O2 bar graphwill only appear if FO2 has been set at a value other tha

®22The TLBG, located around the left perimeter of the LCD (Fig. 26), monitors 12different nitrogen compartments simultaneously and displays the one th

DataPlus23FTO2DATAPLUSGLOdive, or 24 hour period, segments will add to the graph in an arc beginning fromthe lower right. As oxygen loading decreases

®24VARIABLE ASCENT RATE INDICATOR™ (VARI)The Variable Ascent Rate Indicator™ (VARI), located along the bottom of theLCD screen (Fig. 29), is provided

DataPlus25OPERATIONAL MODESNOTE: Displays associated with oxygen and the O2 bar graphwill only appear if FO2 has been set at a value other than &apos

®26ACTIVATION AND DIAGNOSTIC MODEWARNING: Never activate the DataPlus underwater. This mayresult in inaccurate depth and no decompression time displ

DataPlus27If a dive is not made within 2 hours after activation, the DataPlus will shut offautomatically to save battery power. Always check your Dat

®28 was a nitrox dive).If you descend during that first 10 minute transition period, time underwaterwill be considered a continuation of that dive.

DataPlus29PRE DIVE PLANNING SEQUENCE™ (PDPS)Prior to every dive, Oceanic strongly recommends that you view thePDPS to review the no decompression limi

®ivWARNINGS:• The DataPlus is intended for use by recreational divers who have successfully completed a nationally recognized course in scuba divi

®30With each depth display you will see either 'predicted' no decompression limitsbased upon your previous dive profiles (if calculated to b

DataPlus31NO DECOMPRESSION DIVE MODEUpon descending deeper than 5 feet (1.5 meters), the DataPlus will enter the NoDecompression Dive Mode (Fig. 37),

®32decompression limit, the TLBG will diminish as control shifts to slowercompartments. This is a feature of the decompression model that is thebasis

DataPlus33FTO2FTMAXGLODATAPLUSDECOMPRESSION DIVE MODEThe DataPlus will help you to avoid and manage decompression.WARNING: Oceanic recommends the app

®34FTO2GLODATAPLUSHIGH PO2 DIVE MODEThe DataPlus enters the High PO2 Dive Mode (Fig. 41) when partial pressure ofoxygen becomes equal to or greater th

DataPlus35GAUGE MODEIf the DataPlus totally exceeds its capacity to predict an ascent procedure, itenters a Permanent Violation Mode and will operate

®36While you cannot provide a guarantee against the occurrence of de-compression sickness, you may choose your own personal zone ofcaution based upon

DataPlus37Dives are displayed in a sequence that starts with the dive most recently re-corded scrolling back to the oldest of the 12 stored for viewin

®38• Today you conducted 2 dives.• Your log sequence would be #2, #1, #3, #2, #1.• This relates to #2 (today' most recent dive), #1 (today's

DataPlus39O2GLODATAPLUSended to assist you with deciding when enough surface time has elapsed to fly.It appears once per minute for several seconds du

DataPlusvLIMITED TWO-YEAR WARRANTYOceanic guarantees, to the original purchaser only, that the DataPlus will be free of defects in materials and/or cr

®40EXTERNAL ACCESS (EA) MODEUsing special infrared linking hardware and a unique PC software program, datafrom your dives can be downloaded (copied) f

DataPlus41BACKLIGHT FEATUREIn addition to using a high contrast LCD for easy readability in low light condi-tions, the DataPlus' Oceanglo® backli

®42OPERATING TEMPERATUREThe DataPlus will operate in almost any temperature diving environment in theworld (Fig. 53) between 32 and 140 °F (0 and 60 °

HANDLINGTHEEXTREMES

®44EMERGENCY DECOMPRESSIONThere are few legitimate excuses for making unplanned Decompression dives,and the consequences of this type of diving can be

DataPlus45easy to see how this one mistake can quickly be compounded by several others.The DataPlus is a sophisticated instrument designed with capabi

®46WARNING: Existing data for making planned decompressiondives is extremely limited, and virtually nonexistent for repeti-tive decompression diving.

DataPlus47FTO2FTGLODATAPLUSnient way to consistently monitor how close you are coming to the No Decom-pression limit. Oceanic suggests always leaving

®48decompression dive time/depth limits are exceeded causing the TLBG to pass theyellow caution (C.Z.) zone and enter the red decompression (DECO) zon

DataPlus49ascending any further, or you will increase your risk of decompressionsickness.The amount of decompression credit time you receive is depend

®viCOPYRIGHT NOTICEThis owner’s guide is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied, reproduced, t

®50VIOLATION MODESWARNING: If you exceed certain limits, the DataPlus will not beable to tell you how to get safely back to the surface. Thesesituat

DataPlus51The DataPlus will alert you to the Conditional Violation by flashing the TotalAscent Time display until you descend below the required decom

®52would then need to follow the ceiling stop depths and time toward the surfaceuntil the TLBG recedes toward the caution (C.Z.) zone. Upon reaching

DataPlus53protection, Oceanic strongly recommends that you wait until theTLBG segments are well within the 'green' no decompression (NODECO)

®54IMMEDIATE VIOLATION MODEWARNING: The DataPlus enters Immediate Violation Modewhen a situation totally exceeds its capacity to predict an ascentpro

DataPlus55GAUGE MODEUnderwater the Gauge Mode is a continuation of the Immediate Violation Modethat turns the DataPlus into a digital instrument witho

®56EXCEEDING MAXIMUM OPERATING DEPTHAlthough the DataPlus will withstand the pressures found at 330 feet (99.5meters), the depth that you can still us

DataPlus57dives, the DataPlus will allow a maximum of 7 minutes no decompression divetime available at 160 feet (48 meters). Since part of the 7 minu

®58FTO2DATAPLUSGLOgo beyond the range of recreational diving with compressed air. It should notbe considered, however, that these built-in capabiliti

DataPlus59Oceanic strongly recommends that you avoid exceeding oxygen expo-sure limits, and reminds you that nitrox diving requires special train-ing

DataPlusviiCONTENTSFEATURES OVERVIEW ... 1Introduction ...

®60mulation (dose) decreases during your surface interval, the bar graph willgradually receed into the yellow caution (C.Z.) zone and green (normal) z

DataPlus61FTO2DATAPLUSGLOin increments of '.01' BAR. When PO2 reaches 1.60 BAR, the large red bar graphsegment, the PO2 value, and PO2 symb

®62your safety would be jeopardized by losing the use of your DataPlus, ananalog or digital backup system or use of standard air (or nitrox)tables is

CARE&MAINTENANCE

®64O2GLODATAPLUSCARE AND CLEANINGThe DataPlus is a sensitive electronic instrument. Although it has been de-signed to endure the rigors of diving, it

DataPlus65in a rack, tuck the console into a BC pocket, or between the waistband and thebladder of the BC. Keep it off the deck and protected from un

®66ANNUAL DEALER INSPECTIONS & FACTORY SERVICEAs with all Oceanic instrumentation, the DataPlus should be inspected annuallyby an Authorized Ocean

DataPlus67WARNING: Never pressure test the DataPlus in an air environ-ment. Doing so may damage the depth sensor; possibly resultingin erroneous dep

®68• Package the module carefully using a cushioning material.• Include a legible note giving specific reason for return, your name, address, day

DataPlus69LOW BATTERY CONDITIONYou will be alerted to a Low Battery condition by a flashing Battery icon locatedabove the Max Depth display (Fig. 73).

®viiiCONTENTS (CONTINUED)Variable Ascent Rate Indicator™ (VARI) ...24Operational Modes.

®70back far enough to scoop the module out with your index finger. Otherwise, itmay be necessary to insert a blunt screwdriver until the tip rests ju

DataPlus71WARNING: DO NOT attempt to remove the outer case ring (Fig.75a). Doing so may cause a dangerous malfunction, resulting inpossible injury o

®72 will impair correct contact.• Lightly lubricate the battery hatch o-ring with silicon grease and install it onto the battery hatch. DO NOT

DataPlus73• Check the battery hatch o-ring for damage (nicks, cuts, divots, etc.). If found, discard and replace with new.• Before replacing the

®74• Correct the alignment of the module as needed so that it is straight.• Press the module completely into place with your thumbs, watching the

REFERENCE

®76MORE ABOUT FLYING AFTER DIVINGIn 1990 the Undersea and Hyperbaric Medical Society (UHMS) published a set ofguidelines aimed at minimizing the possi

DataPlus77Both the UHMS and DAN agree that “There can never be a flying after divingrule that is guaranteed to prevent decompression sickness complet

®78Atmospheric pressure decreases as altitude increases above sea level. Weathersystems and ambient temperature also affect barometric pressures. Co

DataPlus79MORE ABOUT NITROX DIVINGWARNING: Diving with enriched nitrogen-oxygen (nitrox)mixtures requires special knowledge of the variations imposed

DataPlusixDecompression Dive Mode ...47Violation Modes ...

®80recognized training agency to teach diving with nitrox. The DataPlusis not intended for use by military or commercial divers.WARNING: In the even

DataPlus81FTO2FTMAXDATAPLUSGLOFTO2FTMAXDATAPLUSGLOFTO2FTMAXDATAPLUSGLOFTO2FTMAXDATAPLUSGLOFTO2FTMAXDATAPLUSGLOFTO2FTMAXDATAPLUSGLOFTO2FTMAXDATAPLUSGLO

®82basis of multilevel diving, one of the most important contributionsthe DataPlus offers you. Take advantage of this feature and makeall of your div

DataPlus83Navy theory. Therefore, pay special attention to the following warnings:WARNING: Oceanic advocates responsible diving practices anddoes no

®84RESPONSIBLE COMPUTER DIVINGSince the advent of dive computers, it is a common mistake to assume that the old traditional rules of diving nolonger a

DataPlus85SPECIFICATIONSNO DECOMPRESSION MODELBasis:• Modified Haldanean Algorithm• 12 tissue compartmentsData Base:• Diving Science and Technology (D

®86SPECIFICATIONS (cont'd)GRAPHIC DIVER INTERFACETissue Loading Bar Graph (TLBG)segmentsNo Decompression zone (green) 12Caution zone (yellow)

DataPlus87SPECIFICATIONS (cont'd)OPERATIONAL PERFORMANCE (cont'd)Activation:• Manual activation is required (water immersion does not activa

®88GLOSSARYThe following are diving terms that you should become familiar with. Some apply specifically to the DataPlus.Air Dive - A dive conducted u

DataPlus89GLOSSARY (cont'd)Decompression Ceiling - The shallowest depth a diver may reach upon ascent without risking decompressionsickness (also