OCEANIC ® DATA PLUS 2 owner's guide
® RESPONSIBLE COMPUTER DIVING • Always Plan Each Dive • Always Limit Your Dive to the Level of Your Training and Experience • Always Make Your Deepest Dive 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
Data Plus 2 WARNINGS and SAFETY RECOMMENDATIONS • The Data Plus 2 is intended for use by recreational divers who have successfully completed a nationally recognized course in scuba diving, and diving with enriched nitrogen-oxygen (nitrox) mixtures. • It is intended only for no decompression diving, NOT intentional decompression diving.
® LIMITED TWO-YEAR WARRANTY For details, refer to the Product Warranty Registration Card provided. COPYRIGHT NOTICE This owner’s guide is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine readable form without prior consent in writing from Oceanic / 2002 Design.
Data Plus 2 CONTENTS FEATURES and DISPLAYS ....................................................................................... 1 Introduction ............................................................................................................................................. 2 Interactive Control Console ................................................................................................................... 2 Informational Displays .....................................................
® CONTENTS (CONTINUED) EA Mode ................................................................................................................................................. 20 Summary of Access to Set Modes ...................................................................................................... 22 PRE DIVE and DIVE MODES .................................................................................. 23 Operational Modes .................................................................
Data Plus 2 CONTENTS (CONTINUED) After the Transition Period ................................................................................................................... 37 •• To view Temperature/Date/Time ..................................................................................................... 37 •• To access FO2 Mode ...................................................................................................................... 38 •• To access Pre Dive Planning Sequence ..........
® CONTENTS (CONTINUED) Oxygen Exposure ................................................................................................................................. 53 •• Partial Pressure of Oxygen ............................................................................................................. 53 •• High PO2 Dive Mode ...................................................................................................................... 54 •• High Oxygen Accumulation ........................
Data Plus 2 FEATURES and DISPLAYS refer to page 12 for - WARNINGS and SAFETY RECOMMENDATIONS 1
® INTRODUCTION Welcome to Oceanic and thank you for choosing the Data Plus 2 ! The Data Plus 2 has a wide array of features described in detail throughout the pages that follow. Due to the importance that they be understood thoroughly prior to using the Data Plus 2, information will be expanded upon and some refreshed as you proceed. Relax and read through the complete guide.
Data Plus 2 INFORMATIONAL DISPLAYS Operational modes and status information are visually represented numerically and/or graphically and can be understood at a glance with the aide of universal icons (Fig. 2) that identify and bring quick focus to the displays. Segmented bar graphs will show how close you are to critical limits. a. b. c. d. e. f. g. Each Data Plus 2 numeric and graphic display represents a unique piece of information.
® UNIVERSAL GRAPHIC DIVER INTERFACE™ CO O2 NO DECO Z. C. C. Z. DE Three bar graphs referred to as the Universal Graphic Diver Interface™ appear around the perimeter of the screen (Fig. 3). These segmented bar graphs are located next to green, yellow, and red color coded portions of the peripheral decal that denote normal, caution, and danger zones, respectively. When underwater, you can quickly focus on the bar graphs to make sure that they are in the green.
Data Plus 2 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 bar graph allows you to make a decision regarding safety stop duration or necessity. While you cannot provide a guarantee against the occurrence of decompression sickness, you may choose your own personal zone of caution based upon age, physique, excessive weight, etc., to reduce the statistical risk.
® gen loading decreases, the bar graph will begin to recede, indicating that additional exposure (accumulation) is allowed for that dive, and 24 hour period. Segments = Speed (rate) 0 = 0 - 20 fpm (0 - 6 mpm) 1 = 21 - 30 fpm (6.5 - 9 mpm) 2 = 31 - 40 fpm (9.5 - 12 mpm) 3 = 41 - 50 fpm (12.5 - 15 mpm) 4 = 51 - 60 fpm (15.5 - 18 mpm) 5 = 61+ fpm (18.5+ mpm) (when 5, all will flash) NO DECO O2 Fig.
Data Plus 2 DIVE TIME REMAINING O2 NO DECO Z. C. C. Z. CO a DE One of the most important pieces of information on the Data Plus 2 is the patFT ented Dive Time Remaining numeric display. To numerically display Dive Time Remaining, the Data Plus 2 constantly monitors two critical pieces of informaFT MAX tion; no decompression status and oxygen accumulation status. The Dive Time Remaining display will indicate the time that is more critical for you at that particular moment (i.e.
® As you ascend from depth following a dive that has approached the no decompression limit, the Tissue Loading Bar Graph will recede as control shifts to slower compartments. This is a feature of the decompression model that is the basis for multilevel diving, one of the most important advantages the Data Plus 2 offers. The no decompression algorithm is based upon Haldane’s theory using maximum allowable nitrogen levels developed by Merrill Spencer.
Data Plus 2 ALPHA/NUMERIC DISPLAYS Depth Displays During a dive, CurrentDepth and Maximum Depth reached during that dive are displayed from 0 to 330 feet (99.5 meters) in 1 foot (.5 meter) increments (Fig. 10 a & b). During a Decompression Dive, the required Ceiling Stop Depth is displayed from 60 to 10 feet (20 to 3 meters) in 10 foot (3 meter) increments. NO DECO C. Z.
® Ambient Temperatures from 0° to 99°F (-9 to 60°C) are displayed when the Advance (Left) button is pressed while in the Surface Mode or in a dive mode. BACKLIGHT FEATURE In addition to using a high contrast LCD for easy readability in low light conditions, the backlight features evenly illuminate the full display. Smart Glo™, the surface mode backlight, senses the intensity of light that is passing through the small ports located between the control buttons.
Data Plus 2 OPERATING TEMPERATURE The Data Plus 2 will operate in almost any temperature diving environment in the world between 0 and 140 °F (-9 and 60 °C). At extremely low temperatures, the LCD may become sluggish, but this will not affect it's accuracy. If stored or transported in extremely low temperature areas (below freezing), you should warm the module and its battery with body heat before diving. Damage from excess heat, or cold, is not covered by the Data Plus 2 two year limited warranty.
® WARNINGS and SAFETY RECOMMENDATIONS • Inspect your Data Plus 2 prior to every dive, checking for any signs of the entrance of moisture, damage to the housing, or damage to the LCD display. If these or other signs of damage are found, return the unit to an Authorized Oceanic Dealer. DO NOT attempt to use it until it has received factory service.
Data Plus 2 ACTIVATION and SETUP refer to page 21 for - WARNINGS and SAFETY RECOMMENDATIONS 13
® ACTIVATION CO M FT MAX O2 M FT MAX NO DECO To activate the Data Plus 2, press the Select (Right) button once and release. The Data Plus 2 will immediately enter Diagnostic Mode, displaying all “8’s” (Fig. 11), followed by “dashes”, and a countdown from 9 to 0. While conducting diagnostics, the display is illuminated by the Smart Glo™ backlight as the Data Plus 2 checks its display functions and battery voltage to ensure that everything is working correctly. Z. C. C. Z. DE O2 Fig.
Data Plus 2 If battery voltage is below the level sufficient for a day's operation, the Battery icon will be displayed, flashing (Fig. 13a). Below 15% of rated voltage, all graphic displays will shut off except the Battery icon that will flash for 5 seconds, then the unit will shutdown. MAIN MODE MENU While on the surface, you can access Temperature/Date/Time mode, FO2 Set mode, Pre Dive Planning Sequence, Time to Fly/Desaturate, Log mode, and Set mode. These are described later. C. Z.
® ENTERING SETTINGS • The Advance (Left) button is used to gain access to settings. • The Select (Right) button is used to toggle between, or scroll through, the individual set points available for each of the settings. • The Advance (Left) button is then used to accept and save the set point and revert to Surface Mode, or continue to the next setting. • See page 22 for a 'Summary of Access to Set Modes' that also notes 'settings entered by the factory'.
Data Plus 2 TO SET: DATE//HOUR FORMAT//TIME b C. Z. NO DECO a Fig. 15 - Set Date • press Select (Right) button until the correct Month appears. • press Advance (Left) button 1 time to accept the setting displayed • the Day setting flashes (Fig. 15c) • press Select (Right) button to toggle between '12' and '24' • press Advance (Left) button 1 time to accept the setting displayed C. Z. NO DECO CO O2 • 12 Hr format = 12: Am to 11: Pm • 24 Hr format = 0: to 23: (hours) DE Z. C.
® • the Time appears with the Hour setting flashing (Fig. 17a) CO • press Select (Right) button until the correct Hour appears. • press Advance (Left) button 1 time to accept the setting displayed • the Minute setting flashes (Fig. 17b) O2 NO DECO M Z. C. C. Z. DE b a • press Select (Right) button until the correct Minute appears.
Data Plus 2 • press Select (Right) button until the desired Rate appears. • press Advance (Left) button to accept the setting displayed, and either • revert to Surface Mode (this setting changed) • advance to Set: Unit (this setting not changed) TO SET: UNITS OF MEASURE • press BOTH buttons simultaneously, while in Surface Mode • press Advance (Left) button 8 times • the Units of Measure icons appear flashing (Fig. 19) NO DECO C. Z. CO FT FT O2 TO SET: FO2 50% DEFAULT ON/OFF DE Z. C.
® CO O2 NO DECO Z. C. C. Z. DE • press BOTH buttons simultaneously, while in Surface Mode • press Advance (Left) button 9 times • FO2 50 appears with On or Off flashing (Fig. 20) Fig.
Data Plus 2 WARNINGS and SAFETY RECOMMENDATIONS • Never activate the Data Plus 2 underwater. This may result in inaccurate depth and no-decompression time displays. If the unit is activated when deeper than 4 feet (1 meter) underwater, or at elevations higher than 14,000 feet (4,267 meters), it will perform a diagnostic check followed by immediate shutdown.
® SUMMARY OF ACCESS TO SET MODES (settings entered by the factory appear in italics) To access a specific Set mode from the Surface Mode, press the button(s) as follows: SET MODE TO ACCESS TOVIEW To access> Both '1' time> • Alternate Display (Off) • Year (1999) • Month (1) • Day (1) • Hour Format (12) • Hour (12) • Minute (00) • Sample Rate (10 FT/3 M) • Units (Imperial/Metric) • FO2 Default (On) • EA (download) Left '0' time> Right - toggle (On/Off)> Left '1' time> Right - 1 year/second> Left '2' tim
Data Plus 2 PRE DIVE and DIVE MODES refer to page 34 for - WARNINGS and SAFETY RECOMMENDATIONS 23
® OPERATIONAL MODES While on the surface the Interactive Control Console enables you to access six operational modes and activate the backlight. During a dive it enables you to view 'alternate' displays of information and activate the backlight. TEMPERATURE/DATE/TIME MODE O2 NO DECO CO Z. C. C. Z. DE To view Ambient Temperature/Date/Time (Fig.
Data Plus 2 FO2 50% Default If the Default is set to 'On' and FO2 is set to a value 'greater than 21%', the FO2 value will automatically revert to 50% 10 minutes after that dive. C. Z. NO DECO CO O2 NO DECO C. Z. DE Z. C. When set with an FO2 value of 'Air', the Data Plus 2 will perform calculations the same as if FO2 were set for 21% oxygen, internally accounting for oxygen loading for any subsequent Nitrox dives.
® Setting FO2 b CO To access FO2 Mode while in the Surface Mode and set the unit for Air or the percentage (%) of oxygen (FO2) in your nitrox mix: Z. C. C. Z. DE NO DECO O2 FT MAX O2 a Fig. 25 - Setting FO2 CO NO DECO O2 FT MAX O2 Fig. 26 - FO2 21% 26 The unit reverts to Surface Mode after 2 minutes, unless the Advance (Left) button is pressed to access the Pre Dive Planning Sequence. Z. C. C. Z.
Data Plus 2 Once a dive is made with the Data Plus 2 set as a nitrox computer (FO2 set for a numerical value), it cannot be set for 'Air' until 24 hours after the last nitrox dive. However, you can set FO2 for 21% for use with air. PRE DIVE PLANNING SEQUENCE™ Oceanic strongly recommends that you review the Pre Dive Planning Sequence (PDPS) prior to every dive to help you plan your dive as required to avoid exceeding no decompression or oxygen exposure limits.
® CO Z. C. C. Z. DE O2 NO DECO FT Fig. 28 - Nitrogen Control With each depth display, you will see either 'predicted' no decompression limits based upon your previous dive profiles (if calculated to be nitrogen controlled), or 'predicted' oxygen tolerance limits based upon either a single dive oxygen dose or your 24 hour accumulation of oxygen (if calculated to be oxygen controlled).
Data Plus 2 be displayed flashing (Fig. 30). Depth and Time displays will not appear until the O2 bar graph recedes into the green (normal) zone (e.g., your daily oxygen dosage decreases an amount equivalent to the amount accumulated during the latest dive completed). C. Z. NO DECO O2 Fig. 30 - O2 Limit Exceeded NO DECO C. Z. CO FT FT MAX O2 If the Alternate Display is set to 'OFF', information includes (Fig.
® O2 NO DECO FT Z. C. C. Z. D If the Alternate Display is set to 'ON', information includes (Fig. 32): Current Depth and Dive Time Remaining (and icon). Elapsed Dive Time and Maximum Depth are 'accessed' in Large Format, as described below. O EC Secondary Display (access if Alternate is set ON or OFF) To view water Temperature, Time of Day, and if FO2 was set for a numerical Fig. 32 - Main Display (Alt On) value, display the current level of PO2 (Fig.
Data Plus 2 DECOMPRESSION DIVE MODE The Data Plus 2 provides information that will help you avoid, or if necessary, manage emergency decompression. The Decompression Dive Mode activates when the Tissue Loading Bar Graph enters the red 'DECO' zone (Fig. 35a). VIOLATION MODES The Data Plus 2 enters Violation Modes when it is unable to predict an ascent procedure. a GAUGE MODE FT O2 NO DECO FT Z. C.
® ASCENDING TO THE SURFACE While ascending to shallower depths, the segments that have filled up the Tissue Loading Bar Graph will begin to recede (Fig. 36), offering a graphic representation of your multilevel diving capability. By 'backing off' on the bar graph (fewer segments), you can establish a personal level of conservatism and margin of protection. If you entered Decompression Mode, you must not complete your ascent until the Tissue Loading Bar Graph is at least inside the yellow Caution Zone.
Data Plus 2 The Variable Ascent Rate Indicator™ shows how fast you are ascending. When you exceed the maximum recommended ascent rate of 60 feet per minute (18 meters per minute), the bar graph will enter the red (Too Fast) zone (Fig. 37a). You will be alerted by all segments of the bar graph flashing. The flashing will stop when your ascent rate is slowed.
® WARNINGS and SAFETY RECOMMENDATIONS • The percentage of oxygen (FO2) in the nitrox mix being used must be set 'before each' nitrox dive, unless the FO2 50% Default is set to 'Off'. • The Pre Dive Planning Sequence provides predicted times for subsequent dives. Depending on cylinder size, breathing gas consumption, and oxygen accumulation you may have less time available than indicated because of breathing gas quantity or other limitations.
Data Plus 2 POST DIVE MODES refer to page 43 for - WARNINGS and SAFETY RECOMMENDATIONS 35
® FIRST 2 HOURS AFTER A DIVE CO When you ascend to 3 feet (1 meter) or shallower, the Data Plus 2 will enter Surface Mode (Fig. 38) and begin counting your surface interval. O2 NO DECO Z. C. C. Z. DE TRANSITION PERIOD The first 10 minutes is, in affect, a Transition Period during which time the following information is displayed (Fig. 38): Fig. 38 - Post Dive Surface Mode (<10 min) O2 NO DECO CO Z. C. C. Z. DE Fig. 39 - Temperature/ Date/Time 36 • • • • • Surface Mode icon (flashing).
Data Plus 2 To view that Dive's Log (during the Transition Period): • press the Advance (Left) button 2 times, or • press the Advance (Left) button 1 time, if viewing Temperature/Date/ Time • the unit will revert to Surface Mode after 2 minutes, if no button is pressed Data will not be stored in the unit's memory until the 10 minute Transition Period is completed. Once 10 minutes have elapsed, that dive and transition period are completed, and a subsequent descent will be considered a new dive.
® Z. C. C. Z. D O EC NO DECO O2 FT MAX O2 Fig. 41 - FO2 (Default OFF) • the unit reverts to Surface Mode after 2 minutes, unless the Advance (Left) button is pressed to access the Pre Dive Planning Sequence. CO Z. C. C. Z. DE NO DECO O2 FT MAX O2 Fig. 42 - FO2 (Default ON) FT O2 NO DECO • The unit reverts to Surface Mode after 2 minutes, unless the Advance (Left) button is pressed to access the Fly Mode. O Fig.
Data Plus 2 The Pre Dive Planning Sequence will only scroll to the maximum depth allowed by the nitrogen or oxygen limit, whichever is in control. The respective bar graph will be displayed to indicate which is in control. C. Z. NO DECO a Fig. 44 - Time to Fly/Desaturate NO DECO O2 Fig. 45 - Desaturate (>9:59) a CO O2 NO DECO C. Z. DE Z. C. If a violation occurred during the dive, Time to Desaturate will not be displayed and a single dash ( - ) will appear (Fig. 46a) instead of the letters FLY.
® LOG MODE Information from your 12 latest dives is stored in the Log for viewing. After 12 dives are accumulated, each subsequent dive will overwrite the oldest dive in the log (i.e., the most recent dive deletes the oldest). Log information will not be lost when batteries are removed, but factory service will delete the logs. Dives are displayed in a reverse sequence that starts with the dive most recently recorded back to the oldest of the 12 dives stored.
Data Plus 2 To access a specific dive's log, press the Advance (Left) button repeatedly. C. Z. CO NO DECO FT O2 Fig. 48 - Log Mode (second screen - nitrogen) CO C. Z. DE O2 NO DECO Z. C. To view the third screen (Oxygen Log) for that dive Fig. 49): • press the Select (Right) button 1 time • Log Mode icon • FO2 value - set for that dive (and 'FO2' symbol) • Maximum PO2 level - reached during that dive (and 'PO2' symbol) • O2 bar graph - showing oxygen loading at the time you surfaced.
® To exit Log Mode and return to the Surface Mode (at any time): • press the Advance (Left) button repeatedly to proceed through the remaining recorded dives. • the unit will automatically revert to Surface Mode after 2 minutes, if no button is pressed AFTER THE FIRST 2 HOURS Two hours after the last dive the Surface Mode will no longer be displayed. The Time to Fly and Desaturate countdown timers will be displayed continuously, giving the final countdowns from 22:00 and 9:xx to 0:00 (Fig. 50).
Data Plus 2 CO O2 NO DECO C. Z. DE Z. C. To access the External Access (EA) Mode: This mode is used only to download data to the Oceanlog™ PC software program. • press both buttons simultaneously (while in Surface Mode) • press the Advance (Left) button 10 times • the letters EA appear, flashing (Fig.
® SUMMARY OF ACCESS TO POST DIVE MODES During the first 2 hours after a dive* (after the 10 minute Transition Period has ended): MODES TO ACCESS TO VIEW Backlight (if low light level is sensed) press Either '1 time' Temperature/Date/Time press Left '1 time' FO2 set press Left '2 times' > press Right (hold or repetitive) Pre Dive Plan Sequence press Left '3 times' > press Right (hold or repetitive) Fly/Desaturate press Left '4 times' Log Mode press Left '5 times' > press Right (hold or repe
Data Plus 2 HANDLING THE EXTREMES refer to pages 56-58 for - WARNINGS and SAFETY RECOMMENDATIONS 45
® AVOIDING AND MANAGING DECOMPRESSION The Data Plus 2 is a sophisticated instrument designed with capabilities that go beyond the range of recreational diving with compressed air. It will help you to avoid and, if necessary, manage decompression. TISSUE LOADING BAR GRAPH™ The Tissue Loading Bar Graph offers you a convenient way to consistently monitor how close you are coming to the No Decompression Limit.
Data Plus 2 DECOMPRESSION DIVE MODE The Data Plus 2 is designed to help you by providing a complete representation of how close you are to entering decompression. Decompression Dive Mode activates when theoretical no decompression time/depth limits are exceeded. In the event that you enter Decompression Mode, as indicated by the large red segment of the Tissue Loading Bar Graph (Fig.
® Secondary Display (access if Alternate is set ON or OFF) O O2 NO DECO Z. C. C. Z. C DE Fig. 54 - Secondary Display To view water Temperature, Time of Day, and if FO2 was set for a numerical value, display the current level of PO2 (Fig. 54): • press the Advance (Left) button 1 time • the unit will revert to the Main Display after 10 seconds if the Advance (Left) button is not pressed again. Alternate Display (access only if Alternate is set ON) O O2 NO DECO FT MAX Z. C. C. Z. C DE Fig.
Data Plus 2 Once all required decompression has been completed, the Data Plus 2 will switch to the No Decompression Dive Mode. This is indicated by Total Ascent Time = 0:00, and the Tissue Loading Bar Graph receding into the yellow Caution Zone. Time Dive Remaining now appears in place of Total Ascent Time . VIOLATION MODES It is important to understand each different Violation Mode and how to carry out emergency procedures in the event you enter one.
® above the ceiling 11/2 minutes of penalty time is added to Required Stop Time. CO FT Z. C. C. Z. DE NO DECO O2 FT Fig. 58 - Delayed Violation (> 5 minutes above Stop) NO DECO O2 FT Z. C. FT Fig. 59 - Delayed Violation (Required Stop >60FT/18M) 50 DELAYED VIOLATION MODE Three conditions cause the Data Plus 2 to enter the Delayed Violation Mode: 1. You remain above the required Decompression Ceiling Stop Depth for 'more than 5 minutes' (Fig. 58).
Data Plus 2 If a ceiling much greater than 60FT (18M) is required, an Immediate Violation Mode (Fig. 61) will be entered. This situation would be preceded by entering Delayed Violation Mode, previously described. The Data Plus 2 would then C. Z. NO DECO Fig. 60 - Delayed Violation (deeper than 330ft/99.5m) CO C. Z. DE NO DECO Five minutes after reaching the surface from a dive in which a Delayed Violation occurred, the Data Plus 2 will enter an Immediate Violation Mode.
® CO FT Z. C. C. Z. DE operate with limited functions (Current Depth, Max Depth, and Elapsed Dive Time) in Gauge Mode during the remainder of that dive and for 24 hours after surfacing. NO DECO O2 FT MAX Fig. 62 - Gauge Mode (underwater - Alt set OFF) O2 NO DECO CO Fig. 63 - Gauge Mode (surface) 52 Underwater, the Gauge Mode (Fig. 62) is a continuation of the Immediate Violation Mode that turns the Data Plus 2 into a digital instrument.
Data Plus 2 EXCEEDING MAXIMUM OPERATING DEPTH DE C. Z. NO DECO FT MAX O2 a CO O2 NO DECO C. Z. DE Z. C. PARTIAL PRESSURE OF OXYGEN FT Fig. 64 - Out of Range OXYGEN EXPOSURE The Data Plus 2 is a sophisticated instrument designed with capabilities that go beyond the range of recreational diving with compressed air. It will help you to avoid and manage excessive oxygen exposure. CO Z. C. The maximum depth the Data Plus 2 will display all of its features is 330 feet (99.5 meters).
® HIGH PO2 DIVE MODE CO O2 NO DECO FT Z. C. C. Z. DE Fig. 66 - High PO2 (=/> 1.40 ATA) CO HIGH OXYGEN ACCUMULATION O2 NO DECO FT Fig. 67 - High PO2 (=/> 1.60 ATA) 54 If partial pressure of oxygen continues to increase, the value of PO2 displayed will increase from 1.40 ATA toward a maximum value of 5.00 ATA in increments of '.01' ATA. When PO2 reaches a value of 1.60 ATA, the large red segment of the O2 bar graph, the PO2 value, and PO2 symbol will flash continuously as a warning (Fig.
Data Plus 2 ance. Use it as a visual reference to place a wider margin of protection between you and the Limits. If the theoretical amount of oxygen accumulated equals, or exceeds, the limit for a single exposure, or exposure for a 24 hour period, Oxygen Dive Time Remaining becomes 0:00. The O2 Bar Graph will enter the red danger zone (Fig. 68) and the full bar graph will flash as a warning. You must immediately focus on making a safe controlled ascent to the surface to prevent further exposure.
® WARNINGS and SAFETY RECOMMENDATIONS • There are few legitimate excuses for making unplanned Decompression dives, and the consequences of this type of diving can be severe. By making an unplanned Decompression dive without the necessary preparation and training, you will have placed yourself in an unnecessarily dangerous situation. Allow a surface interval of at least 24 hours before reentering the water in the event a dive requires emergency decompression.
Data Plus 2 WARNINGS and SAFETY RECOMMENDATIONS • Exiting the water with the Tissue Loading Bar Graph in the red decompression zone greatly increases the risk of decompression sickness, and may result in injury or death. • The oxygen features of the Data Plus 2 are intended for use only by recreational divers trained for nitrox diving by an instructor certified by a recognized training agency to teach diving with nitrox.
® WARNINGS and SAFETY RECOMMENDATIONS • Maximum limits for exposure to oxygen should not be exceeded, and the consequences of CNS (Central Nervous System) oxygen toxicity can be severe, resulting in Gran Mal convulsions and drowning. • Conducting repetitive dives using enriched nitrogen-oxygen mixtures can lead to oxygen buildup, reducing oxygen tolerance while increasing the risk of pulmonary oxygen toxicity.
Data Plus 2 CARE and MAINTENANCE refer to page 68 for - WARNINGS and SAFETY RECOMMENDATIONS 59
® CARE AND CLEANING The Data Plus 2 must be protected from shock, excessive heat, chemical attack, and tampering. The housing, made of an impact resistant resin, is extremely shock resistant but susceptible to chemical attack and scratches. To protect the lens against scratches, place a transparent Oceanic Instrument Lens Protector on it. If it becomes scratched, Oceanic can replace it, although small scratches will naturally disappear underwater. AFTER THE DIVE DE C. Z.
Data Plus 2 must be completed one year after purchase (+/- 30 days). Oceanic recommends that you continue to have this inspection performed every year to ensure your Data Plus 2 is working properly. The costs of annual inspections are not covered under the terms of the 2 year limited warranty. NOTE: Annual inspections are only performed by Authorized Oceanic Dealers and are not performed by the factory. TO OBTAIN SERVICE Take your Data Plus 2 to an Authorized Oceanic Dealer.
® Additional information is available at the Oceanic web site http://www.oceanicusa.com NOTE: Be sure to record all dives in the Log. Dive log data will be erased whenever your Data Plus 2 receives factory service. BATTERY LIFE DI RESP O VER Battery consumption rate varies throughout periods of operation, which begin upon activation and continue for 24 hours after surfacing from a dive.
Data Plus 2 LOW BATTERY CONDITION During unit operation, voltage level is checked every 10 minutes. A Low Battery condition is indicated by the Battery icon appearing on the display (Fig. 69a). Upon decreasing to a voltage level that will not maintain proper unit operation, the icon will flash for 5 seconds followed by shutdown of the unit.
® Console - bend the rubber console boot back to expose the edge of the module. If the boot is flexible enough to permit, you may bend it back far enough to scoop the module out with your index finger. Otherwise, it may be necessary to insert a blunt screwdriver until the tip rests just underneath the module. DO NOT pry the module from the console! Slowly increase the pressure under the module by releasing the tension on the rubber boot. The module will slide up the screwdriver and exit the console.
Data Plus 2 • If damage is found, return your Data Plus 2 to your Authorized Oceanic Dealer, and DO NOT attempt to use it until it has received factory service. If moisture or corrosion is found in the battery compartment, DO NOT use it until it has received proper service. It is best to have your unit inspected and cleaned by an Authorized Oceanic Dealer. If you are cleaning it in the field, proceed as follows: • • • • Inspect the lens and housing to ensure they are not cracked or damaged.
® a BATTERY INSTALLATION • To replace the battery hatch o-ring, lightly lubricate it with silicon grease and place it on the beveled outer edge of the battery compartment (Fig. 71a). Ensure that it is evenly seated. + _ NOTE: This o-ring must be a genuine Oceanic part that can be purchased from your Authorized Oceanic Dealer. Use of any other o-ring will void the Data Plus 2 warranty. Fig. 71 - O-ring Installation Battery + _ Fig. 72 - Battery Orientation 66 • Place a new 3.
Data Plus 2 INSPECTION • Activate the unit and watch carefully as it performs a full diagnostic and battery check and enters Surface Mode. • Observe the LCD display to ensure it is consistently clear and sharp in contrast throughout the screen. • If any portions of the display are missing or appear dim, or if a Low Battery condition is indicated, return the unit to your Authorized Oceanic Dealer for a complete inspection before attempting to use it.
® WARNINGS and SAFETY RECOMMENDATIONS • When the Low Battery icon is displayed prior to a dive, DO NOT attempt to dive with the Data Plus 2 until the batteries are replaced. • Never, under any circumstances, poke any object through any slots or holes of the Data Plus 2. Doing so may damage the depth sensor, possibly resulting in erroneous depth and/or dive time remaining displays.
Data Plus 2 REFERENCE refer to page 70 for - WARNINGS and SAFETY RECOMMENDATIONS 69
® WARNINGS and SAFETY RECOMMENDATIONS • Diving at high altitude requires special knowledge of the variations imposed upon divers, their activities, and their equipment by the decrease in atmospheric pressures. Oceanic recommends completion of a specialized Altitude training course by a recognized training agency prior to diving in high altitude lakes or rivers. • Altitude compensation provided by the Data Plus 2 takes place when the unit is activated.
Data Plus 2 NO DECOMPRESSION LIMITS Note how the No Decompression Limits for the Data Plus 2 are contrasted with the U.S. Navy limits (Fig. 73). For most depths, the Data Plus 2 provides somewhat less no decompression times than the U.S. Navy Tables. However, while the No Decompression Limits may be less, you will receive greatly increased allowable bottom times as you take advantage of the multilevel dive capabilities offered by the Data Plus 2.
® OXYGEN EXPOSURE LIMITS Maximum Exposure Time PO2 Per Dive Per 24hr (Min) (ATA) (Min) 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 720 570 450 360 300 240 210 180 150 120 45 720 570 450 360 300 270 240 210 180 180 150 Fig. 74 - Oxygen Exposure Limits 72 Predicted exposure limits and oxygen calculations of the Data Plus 2 are based on maximum exposure durations (Fig. 74) published by the National Oceanic and Atmospheric Administration in the October 1991 NOAA Diving Manual.
Data Plus 2 6 8 10 DE Display Seen by the Diver 11 CO No. of Segments Fig. 75 - Tissue Compartment Control 9^ DE CO 9v DE CO C. Z. CO Display Seen by the Diver NO DECO DE Tissue Half-Time 20 C. Z. CO C. Z. C. Z. 9 DE NO DECO CO NO DECO DE 40 C. Z. CO C. Z. NO DECO 7 DE Tissue Half-Time 20 C. Z. CO 40 NO DECO DE 80 NO DECO CO NO DECO C. Z. NO DECO NO DECO etc. DE 120 C. Z. CO C. Z. DE 160 NO DECO etc. 9 No. of Segments Fig.
® SPECIFICATIONS NO DECOMPRESSION MODEL OPERATIONAL MODES Basis: • Modified Haldanean Algorithm • 12 tissue compartments • Activation/Diagnostic • Surface • Temperature/Date/Time • FO2 Set Point • Pre Dive Planning Sequence • Time to Fly/Desaturate • Dive Log (Date/Nitrogen/Oxygen) • Set • Alternate (On/Off) • Year, Month, Day • Hour Format (12/24) • Hour, Minute • Sampling Rate • Units (Imperial/Metric) • FO2 Default (On/Off) • External Access (EA) • No Decompression Dive - Main • Secondary • Alternate
Data Plus 2 SPECIFICATIONS (continued) DISPLAY RANGE/RESOLUTION Numeric Displays: • Dive Number • Depth • Maximum Depth • FO2 Set Point • PO2 Value • Dive Time Remaining • Total Ascent Time • Decompression Stop Time • Elapsed Dive Time • Surface Time • Dive Log Surface Interval • Time to Fly • Time to Desaturate • Temperature Range: Resolution: 0-9 1 0 - 330 ft (0 - 99.5 m) 1 ft (.5 m) 330 ft (99.5 m) 1 ft (.5 m) 21 - 50 % 1% .01 - 5.00 ATA .01 ATA 0 - 9 hr. 59 min. 1 minute 0 - 9 hr. 59 min.
® SPECIFICATIONS (continued) OPERATIONAL PERFORMANCE (continued) Altitude: • Operational from sea level to 14,000 feet (4,267 meters) elevation • Recalibration of depth readings from 'feet of sea water' to 'feet of fresh water' when higher than 2,000 feet (610 meters) elevation Power: • Battery • Shelf life • Replacement • Life expectancy 1 - 3.6 volt, 1/2AA TADIRAN® model TL-2150, .95Ah, 1.0ma, Lithium (must be 3.6 v, .95Ah, 1.
Data Plus 2 GLOSSARY Air Dive - A dive conducted using air (approximately 21% oxygen & 79% nitrogen) as the breathing gas. Algorithm - A step-by-step mathematical formula designed to accomplish a particular result (i.e. Dive Time Remaining in the Data Plus 2). Altitude Dive - A dive made at an elevation above sea level (2,000+ ft. / 610+ m.) where a different set of no decompression tables is used . Ascent Rate - The speed that a diver ascends toward the surface. C.Z. - Abbreviation for Caution Zone.
® GLOSSARY (continued) Display - A visual readout of information. Dive Log Mode - A computer display of previous dive information. Dive Time Remaining - A display of the time before a diver must surface based on no-decompression status,or oxygen accumulation status. 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 oxygen (O2) in the breathing gas mixture.
Data Plus 2 GLOSSARY (continued) 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 adverse physiological affects of exposure to elevated levels of oxygen.
® DATA PLUS 2 SERVICE RECORD 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 EVERY DIVE 80 RESP Date of purchase ______________ AS A RESPONSIBLE DIVER I UNDERSTAND AND ASSUME THE RISKS I MAY E
Data Plus 2 b DE c M FT MAX NO DECO h O2 d Z. C. M FT MAX a e g CO C. Z. f a. b. c. d. e. f. g. h. i. j. k. l. m. n.
OCEANIC USA 2002 Davis Street San Leandro, Ca. 94577 USA Phone: 510/562-0500 Fax: 510/569-5404 Web: http://www.oceanicusa.com © 2002 Design 1999 Doc. No.
