OCEANIC ® Datamax Pro Plus owner's guide R1
® 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
Datamax Pro Plus WARNINGS and SAFETY RECOMMENDATIONS • The Pro Plus 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.
Datamax Pro Plus CONTENTS FEATURES and DISPLAYS ....................................................................................... 1 Introduction ............................................................................................................................................... 2 Interactive Control Console ....................................................................................................................... 2 Informational Displays ..........................................
® CONTENTS (CONTINUED) Entering Settings ..................................................................................................................................... 21 • To Set: Alternate On/Off ................................................................................................................... 21 • To Set: Audible Alarm On/Off ........................................................................................................... 22 • To Set: Depth Alarm Set Point .............
Datamax Pro Plus CONTENTS (CONTINUED) POST DIVE MODES ................................................................................................. 43 First 2 Hours After a Dive ........................................................................................................................ 44 • Transition Period .............................................................................................................................. 44 • To view Temperature/Date/Time ........................
® CONTENTS (CONTINUED) • Immediate Violation Mode ............................................................................................................... 61 • Gauge Mode .................................................................................................................................... 62 • Permanent Violation ........................................................................................................................ 62 Oxygen Exposure ...................................
Datamax Pro Plus FEATURES and DISPLAYS refer to page 16 for - WARNINGS and SAFETY RECOMMENDATIONS 1
® INTRODUCTION Welcome to Oceanic and thank you for choosing the Pro Plus ! NO DECO M FT MAX O2 M FT MAX CZ CZ DECO BAR PSI Pro PLUS OCEANIC ® O2 The Pro Plus 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 Pro Plus, information will be expanded upon and some refreshed as you proceed. Relax and read through the complete guide.
Datamax Pro Plus INFORMATIONAL DISPLAYS a. Operating Mode b. Elapsed Dive Time c. Deco Stop d. Temperature e. Audible f. Log g. Maximum Depth h. Low Battery d 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.
® UNIVERSAL GRAPHIC DIVER INTERFACE™ CZ CZ NO DECO DECO O2 Four bar graphs referred to as the Universal Graphic Diver Interface™ appear around the perimeter of the screens (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.
Datamax Pro Plus representation of just how close you are to the no decompression limit with a yellow Caution (C.Z.) Zone that allows you to make a decision regarding safety stop duration or necessity. The Tissue Loading Bar Graph™ has been granted U.S. Patent No. 4,882,687. The Tissue Loading Bar Graph™ also assists you with managing decompression (explained later) by filling a large red 'ceiling stop required' segment.
® 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) DECO CZ CZ Variable Ascent Rate Indicator™ (VARI) The Variable Ascent Rate Indicator™ (Fig. 6a) is provided to help you avoid excessive ascent rates by displaying a visual representation of ascent speed, rather than just showing that you are ascending too fast.
Datamax Pro Plus by the Pro Plus, and it takes into account the breathing gas required for a safe ascent including any required decompression stops. The green, yellow, and red zones adjacent to the bar graph enable you to quickly focus on remaining breathing gas times of 60 minutes or less, based on your pre selected End Gas Alarm Set Point. The bar graph is more precise as time remaining decreases toward the red zone.
® It is calculated based on the amount of nitrogen absorbed by twelve hypothetical tissue compartments. The rates each of these compartments absorb and release nitrogen is mathematically modeled and compared against a maximum allowable nitrogen level. Whichever one of the twelve is closest to this maximum level is the controlling compartment for that depth. Its resulting value will be displayed numerically (Fig. 8a) along with the No Decompression Dive icon and graphically as the Tissue Loading Bar Graph.
Datamax Pro Plus CZ NO DECO FT FT MAX O2 Breathing Gas Time Remaining DECO CZ before reaching the oxygen exposure limit decreases, segments are added to the O2 bar graph. When the amount of time remaining before reaching the oxygen limit becomes less than the No Decompression Dive Time Remaining, or Breathing Gas Time Remaining, calculations for that depth will be controlled by oxygen. Oxygen Time Remaining will then appear as the main numeric time display (Fig.
® then used in conjunction with a knowledge of the depth dependence to predict the breathing gas required for a safe ascent including any required decompression stops. Breathing gas consumption and depth are continuously monitored, and Breathing Gas Time Remaining reflects any change in your circumstances.
Datamax Pro Plus ALPHA/NUMERIC DISPLAYS Cylinder Pressure Display The Cylinder Pressure display appears in the lower screen (Fig. 11a) any time the Pro Plus is connected to a pressurized cylinder and in an active mode. Values of pressure are displayed from 10 PSI (.5 BAR) up to 5000 PSI (352 BAR) in increments of 10 PSI (.5 BAR). Depth Displays b c CZ CZ During a dive, CurrentDepth (Fig. 11b) and Maximum Depth reached during that dive (Fig. 11c) are displayed from 0 to 330 feet (99.5 meters) in 1 foot (.
® The colon that separates hours and minutes blinks once per second when the display is indicating real time such as elapsed Surface Time, Elapsed Dive Time, or Time of Day. Dive Time Available, Dive Time Remaining, Decompression Stop Time, Total Ascent Time required, Time to Fly, or Desaturation Time are calculated projections of time and use a solid (non-blinking) colon to indicate that they are counting down, rather than up.
Datamax Pro Plus When the Pro Plus senses immediate danger to you, it emits One Beep per Second until the situation is corrected (if the Audible Alarm feature is set ON). If the Audible Alarm feature is set OFF (described later), you will be alerted instead by one Double Beep. Situations are: • Descent deeper than the Depth Alarm Set Point. • Ascent to a depth shallower than a required stop depth. • Ascent rate that exceeds 60 ft./min (18 m/min). • Gas Time Remaining equals zero (0:00).
® BACKLIGHT FEATURE In addition to using a high contrast LCD for easy readability in low light conditions, the backlight features evenly illuminate the full upper and lower displays. Smart Glo™, the surface mode backlight, senses the intensity of light that is passing through small ports located between the control buttons (Fig. 13). If a low level of light is sensed, the Smart Glo™ backlight will illuminate the display for button depression time plus 10 seconds when either button is pressed.
Datamax Pro Plus 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. DI RESP O VER Even though the Pro Plus will operate in this wide range 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).
® WARNINGS and SAFETY RECOMMENDATIONS • Inspect your Pro Plus 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.
Datamax Pro Plus ACTIVATION and SETUP refer to page 29 for - WARNINGS and SAFETY RECOMMENDATIONS 17
® ACTIVATION Connect the regulator assembly to a full cylinder and pressurize by slowly opening the cylinder valve. Note that to enter settings, access information such as the log, or to download data it is not necessary to pressurize the unit. To activate the Pro Plus, press the Select (Right) button once and release. It will immediately enter Diagnostic Mode, displaying all “8’s” (Fig. 14), followed by “dashes”, and a countdown from 9 to 0.
Datamax Pro Plus SURFACE MODE DECO O2 If battery voltage is below the level sufficient for a day's operation, the Battery icon will be displayed (Fig. 16a). Below 15% of rated voltage, all graphic displays will shut off except the Battery icon that will flash for 4 seconds, then the unit will shutdown. NO DECO CZ CZ Surface Mode, identified by the Surface Time icon (Fig. 15a), immediately follows Diagnostic Mode after initial activation.
® The menu structure of the Set Mode enables you to: DI RESP O VER • • • • • • • • • • • • N SI LE B Be a RESPONSIBLE DIVER at all times.
Datamax Pro Plus 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 30 for a 'Summary of Access to Set Modes' that also notes 'settings entered by the factory'.
® TO SET: AUDIBLE ALARM ON/OFF CZ CZ NO DECO DECO O2 Fig. 18 - Set Audible Alarm On/Off DECO O2 NO DECO CZ CZ FT MAX Fig. 19 - Set Depth Alarm 22 'OFF' - if the unit senses a condition that poses immediate danger (page 13), it emits a double beep. Other alarms are silenced 'ON' - alarms will be sounded for all conditions as listed on pages 12 and 13.
Datamax Pro Plus • press Select (Right) button until the desired Max Depth value appears • press Advance (Left) button to accept the setting displayed, and either • revert to Surface Mode (if this setting was changed), or • advance to Set: Turn Pressure Alarm (this setting was not changed) Example of Pressure Alarm Set Points: Starting with 3000 psi, set the Turn Pressure Alarm for 2000 psi and the End Pressure Alarm for 1000 psi (e.g., 1000 psi used going out, 1000 psi used coming back, 1000 psi reserve).
® TO SET: END PRESSURE ALARM SET POINT CZ CZ NO DECO DECO O2 The End Pressure Alarm can be set to values between 300 psi (20 BAR) and 1500 psi (68 BAR) in 100 psi (6 BAR) increments to warn you. • press BOTH buttons simultaneously, while in Surface Mode • press Advance (Left) button 4 times • Gas Time and Audible icons appear with Pressure value flashing (Fig.
Datamax Pro Plus • press Select (Right) button until the correct Day appears. • press Advance (Left) button 1 time to accept the setting displayed DECO CZ CZ • 12 Hr format = 12: Am to 11: Pm • 24 Hr format = 0: to 24: (hours) O2 NO DECO • the Hour Format appears flashing (Fig. 23) • press Select (Right) button to toggle between '12' and '24' • press Advance (Left) button 1 time to accept the setting displayed Fig. 23 - Set Hour Format • the Time appears with the Hour setting (Fig.
® TO SET: SAMPLING RATE Sampling Rate is the Time, or Depth, interval at which data samples will be recorded for subsequent download to the OceanLog™ PC software program. It has 'no effect' upon displayed data or data stored in the unit's viewable Log. Rates available are 2 FT (.5M), 5 FT (1.5 M), 10 FT (3 M), 2 SEC, 5 SEC, 10 SEC, 15 SEC, 20 SEC, 25 SEC, 30 SEC. Lower rates = more samples and more memory 'used' per dive. Fewer dives can be stored for download, however profile graphs will be smoother.
Datamax Pro Plus TO SET: UNITS OF MEASURE CZ NO DECO FT FT O2 • press Select (Right) button to toggle between 'FT, °F' and 'M, °C' • press Advance (Left) button to accept the setting displayed, and either • revert to Surface Mode (if this setting was changed), or • advance to Set: FO2 Default (this setting was not changed) CZ • press BOTH buttons simultaneously, while in Surface Mode • press Advance (Left) button 12 times • the Units of Measure icons appear flashing (Fig.
® EA MODE Although included in the menu structure, External Access (EA) Mode has no settings. It is accessed only when data is being downloaded (copied) to the OceanLog™ PC software program for storage and viewing. This is described on page 50. • press Advance (Left) button to 'bypass EA Mode' (Fig. 28) and revert to Surface Mode Responsible O2 NO DECO CZ CZ DECO Fig.
Datamax Pro Plus WARNINGS and SAFETY RECOMMENDATIONS • Never activate the Pro Plus 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/set> TO ACCESS Both '1' time> TO VIEW TO SAVE • Alternate Display (Off) • Audible Alarm (On) • Depth Alarm (330 ft) • Turn Pressure (3000 psi) • End Pressure (1500 psi) • Year (1999) • Month (1) • Day (1) • Hour Format (12) • Hour (12) • Minute (00) • Sample Rate (10 FT) • Units (Imperial) • FO2 Default (On) • EA (do
Datamax Pro Plus PRE DIVE and DIVE MODES refer to page 42 for - WARNINGS and SAFETY RECOMMENDATIONS 31
® 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 To view Ambient Temperature/Date/Time (Fig.
Datamax Pro Plus FO2 50% Default CZ NO DECO O2 Fig. 30 - FO2 Default DECO CZ CZ • FO2 must be reset for each repetitive nitrox dive, or the value will automatically 'default' to 50 (Fig. 30) and the dives will be calculated based on 50% O2 for oxygen calculations and 21% O2 (79% nitrogen) for nitrogen calculations. • If you surface for greater than 10 minutes during a dive, a subsequent descent will be considered a new dive and the FO2 value must be reentered.
® Setting FO2 DECO CZ CZ 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: NO DECO b O2 FT MAX O2 a Fig. 32 - Setting FO2 • press the Advance (Left) button 2 times • press the Select (Right) button repeatedly, or press and hold it, until the value of FO2 for the nitrox mix being used is displayed • the FO2 value displayed (Fig. 32a) will advance from 21 to 50 (%) in increments of 1 (%), then display 'Air' again.
Datamax Pro Plus Once a dive is made with the Pro Plus 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.
® DECO CZ CZ O2 NO DECO FT 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 accumulation of oxygen (if calculated to be oxygen controlled). Fig.
Datamax Pro Plus CZ NO DECO FT As long as it is activated on the surface, the Pro Plus will enter the No Decompression Dive Mode when you descend deeper than 5 feet (1.5 meters), regardless of the operating mode it is in. If activated below 4 feet (1 meter), the unit will perform a diagnostic check and shutdown. PSI 0 5 10 20 30 40 50 60 Fig. 38 - Main Display (Alternate Off) DECO CZ CZ To activate the Oceanglo® backlight underwater, press the Select (Right) button.
® Secondary Display (access if Alternate is set ON or OFF) DECO O2 NO DECO CZ CZ To view water Temperature, Time of Day, and if FO2 was set for a numerical value, display the current level of PO2 (Fig. 40): • 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) PSI 0 5 10 20 30 40 50 60 Fig.
Datamax Pro Plus DECOMPRESSION DIVE MODE The Pro Plus 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. 42a). DECO CZ The Pro Plus enters Violation Modes when it is unable to predict an ascent procedure. a CZ VIOLATION MODES NOTE: Decompression Dive Mode, Violation Modes, and Gauge Mode are described on pages 54 - 62.
® 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. 43), 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.
Datamax Pro Plus 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. 44a). 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.
Datamax Pro Plus POST DIVE MODES refer to page 51 for - WARNINGS and SAFETY RECOMMENDATIONS 43
® FIRST 2 HOURS AFTER A DIVE CZ CZ When you ascend to 3 feet (1 meter) or shallower, the Pro Plus will enter Surface Mode and begin counting your surface interval. NO DECO DECO O2 TRANSITION PERIOD The first 10 minutes is, in affect, a Transition Period during which time the following information is displayed (Fig. 45): Fig. 45 - Post Dive Surface Mode (<10 min) O2 NO DECO CZ CZ DECO Fig. 46 - Temperature/ Date/Time 44 • • • • • Surface Mode icon (flashing).
Datamax Pro Plus 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 Temp/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.
® DECO NO DECO CZ CZ O2 FT MAX O2 Fig. 48 - FO2 (Default OFF) To access FO2 Mode: • press the Advance (Left) button 2 times (while in Surface Mode) • If the FO2 Default was set OFF, the FO2 setting displayed will be the same value previously set (Fig. 48). • If the FO2 Default was set ON, the FO2 value displayed (Fig. 49) will be the 'default value' of 50 (%) and will have to be set for the breathing gas used for the next dive. • press the Select (Right) button to alter the setting, if required.
Datamax Pro Plus CZ NO DECO b O2 To access Time to Fly and Desaturate Countdowns: • press the Advance (Left) button 4 times (while in Surface Mode) • press the Select (Right) button to view the sequence DECO CZ 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. a Fig.
® 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.
Datamax Pro Plus To access a specific dive's log, press the Advance (Left) button repeatedly. DECO NO DECO CZ CZ FT O2 To view the second screen for that dive (Nitrogen Log- Fig.
® To exit Log Mode and return to the Surface Mode: • 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. 57).
Datamax Pro Plus CZ NO DECO DECO CZ O2 To access the External Access (EA) Mode: • press both buttons simultaneously while in Surface Mode • press the Advance (Left) button 14 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 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 repetitive) Set Mode press Both '
Datamax Pro Plus HANDLING THE EXTREMES refer to pages 66-68 for - WARNINGS and SAFETY RECOMMENDATIONS 53
® AVOIDING AND MANAGING DECOMPRESSION The Pro Plus 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™ DECO CZ CZ a FT MAX O2 NO DECO FT PSI 0 5 10 20 30 40 50 60 Fig. 59 - Caution Zone 54 The Tissue Loading Bar Graph™ offers you a convenient way to consistently monitor how close you are coming to the No Decompression Limit.
Datamax Pro Plus DECOMPRESSION DIVE MODE The Pro Plus 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. DECO CZ a CZ In the event that you enter Decompression Mode, as indicated by a double beep, the large red segment of the Tissue Loading Bar Graph (Fig.
® Secondary Display (access if Alternate is set ON or OFF) DECO O2 NO DECO CZ CZ To view water Temperature, Time of Day, and 'if FO2 was set for a numerical value', display the current level of PO2 (Fig. 61): • 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) PSI 0 5 10 20 30 40 50 60 Fig.
Datamax Pro Plus CZ NO DECO PSI 0 5 10 20 30 40 50 60 Fig. 63 - Breathing Gas Time Remaining (5 minutes) DECO CZ CZ When the Breathing Gas Time Remaining decreases to zero minutes, the Audible Alarm will continuously beep once per second* (Fig. 64), signaling the need for an immediate safe ascent to your first decompression stop. FT O2 When Breathing Gas Time Remaining decreases to 5 minutes, the tank Pressure numerals will flash and a Double Beep will sound (Fig. 63).
® MANAGING DECOMPRESSION STOPS The amount of decompression credit time that you receive is dependent on depth, with slightly less credit given the deeper you are. You should stay slightly deeper (Fig. 65a) than the Required Stop Depth indicated (Fig. 65b) until the next shallower Stop Depth appears. Then, you can slowly ascend to, but not shallower than, that indicated ceiling Stop Depth.
Datamax Pro Plus CONDITIONAL VIOLATION MODE The Pro Plus will enter the Conditional Violation Mode if you ascend shallower (Fig. 66a) than the Required Decompression Ceiling Stop Depth displayed (Fig. 66b). The audible alarm will beep once per second* and the Total Ascent Time display (Fig. 66c) will flash until you descend below the Required Stop Depth. a *If the audible alarm feature was set to OFF, only a double beep will be emitted to alert you.
® DELAYED VIOLATION MODE DECO CZ CZ Three conditions cause the Pro Plus to enter the Delayed Violation Mode: NO DECO FT 1. Above the Required Ceiling Stop Depth for 'more than 5 minutes'. The Audible Alarm will emit one long beep and the Total Ascent Time display (Fig. 67a) will flash until you descend below the Required Stop Depth. O2 FT a You would then need to follow the Stop Depths and Times toward the surface until the Tissue Loading Bar Graph recedes into the caution zone.
Datamax Pro Plus CZ NO DECO PSI 0 5 10 20 30 40 50 60 Fig. 69 - Delayed Violation (deeper than 330ft/99.5m) DECO CZ IMMEDIATE VIOLATION MODE FT MAX CZ Upon descending deeper than 330 feet (99.5 meters), the Tissue Loading Bar Graph will flash and the Current Depth and Max Depth displays will only indicate 3 dashes (Fig. 69) until ascent is made to a depth shallower than 330 feet (99.5 meters), at which time the Current Depth display will be restored.
® GAUGE MODE DECO CZ CZ NO DECO FT O2 FT MAX PSI The Pro Plus will operate with limited functions in Gauge Mode during the 24 hours after a dive in which a Permanent Violation occurred. Underwater, the Gauge Mode is a continuation of the Immediate Violation Mode that turns the Pro Plus into a digital instrument without any decompression or oxygen monitoring functions.
Datamax Pro Plus OXYGEN EXPOSURE DECO CZ NO DECO O2 The Pro Plus 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. CZ a PARTIAL PRESSURE OF OXYGEN As depth increases during the dive, the partial pressure of oxygen (PO2) increases. To view the current value of PO2 (Fig. 73a): PSI 0 5 10 20 30 40 50 60 Fig.
® DECO CZ CZ O2 NO DECO FT When PO2 reaches a value of 1.60 ATA (Fig. 75), the large red segment of the O2 bar graph, the PO2 value, and PO2 symbol will flash continuously and the Audible Alarm will emit one beep per second* as a warning until the level of PO2 decreases below 1.60 ATA. *If the audible alarm feature was set to OFF, only a double beep will be emitted to alert you. HIGH OXYGEN ACCUMULATION PSI 0 5 10 20 30 40 50 60 Fig. 75 - High PO2 (=/> 1.
Datamax Pro Plus beep per second* as a warning until the level of oxygen decreases below the limit. *If the audible alarm feature was set to OFF, only a double beep will be emitted to alert you. You must immediately focus on making a safe controlled ascent to the surface to prevent further exposure. As your accumulation (dose) decreases during your surface interval, the O2 bar graph will gradually recede into the yellow (caution) zone and green (normal) zone.
® 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.
Datamax Pro Plus 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 Pro Plus 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.
Datamax Pro Plus CARE and MAINTENANCE refer to page 78 for - WARNINGS and SAFETY RECOMMENDATIONS 69
® CARE AND CLEANING The Pro Plus 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. Protect the lens against scratches with a transparent Oceanic Instrument Lens Protector. Small scratches will naturally disappear underwater.
Datamax Pro Plus Oceanic recommends that you continue to have this inspection performed every year to ensure your Pro Plus 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 Pro Plus to an Authorized Oceanic Dealer or send it to the 'nearest' Facility listed on page 77.
® BATTERY LIFE Battery consumption rate varies throughout periods of operation, which begin upon activation and continue for 24 hours after surfacing from a dive. The exact number of dives, or hours of operation, that you will obtain with a battery is subject to variables, such as, temperature, the number of dives conducted during an operational period, and how often the backlight is used. Tests and calculations indicate that a new Tadiran® 1/2AA model TL-2150, .95Ah, 1.
Datamax Pro Plus If the unit did not display the Low Battery icon 'prior' to entering the Dive mode, and a low battery condition occurs during a dive, you will be alerted by the Low Battery icon appearing on the display. There will be sufficient battery power to maintain unit operation 'for the remainder of that dive'. NOTE: The Pro Plus will continue to function on real time for a period of 10 seconds after the battery is removed, maintaining Nitrogen and Oxygen calculations for a repetitive dive.
® BATTERY REPLACEMENT NOTE: The following procedure must be closely adhered to. Damage due to improper battery replacement is not covered by the Pro Plus limited 2 year warranty. BATTERY REMOVAL 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. a X X X X Fig. 78 - Case Back Examine the case back to find the Battery Hatch (Fig.
Datamax Pro Plus • Closely examine the inside of the battery compartment for any signs of corrosion indicating entrance of moisture into the unit. If found, return your Pro Plus to an Authorized Oceanic Dealer, and DO NOT use it until it has received service. If water 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.
® • Place a new 3.6 volt TADIRAN®, model TL-2150, .95Ah, 1.0ma, Lithium battery, negative end first, into the battery compartment toward the spring, ensuring proper orientation of the positive (+) and negative (-) ends (Fig. 80). • Carefully place the battery hatch into position so that it seats on top of the o-ring, and while holding it in place with your thumb, secure it with the four screws by turning them clockwise with a small Philips head screwdriver. DO NOT attempt to use any other screws.
Datamax Pro Plus OCEANIC USA 2002 Davis Street San Leandro, Ca. 94577 Tel: 510-562-0500 Fax: 510-569-5404 http://www.oceanicusa.com service@oceanicusa.com Oceanic International (Pacific) Kapolei, Hawaii Tel: 808-682-5488 Fax: 808-682-1068 Oceanic Europe Pomezia, Italy Tel: 39-6-910-4148 Fax: 39-6-910-4163 Oceanic Diving Australia Pty.
® WARNINGS and SAFETY RECOMMENDATIONS • Never, under any circumstances, poke any object through any slots or holes of the Pro Plus. Doing so may damage the depth sensor, possibly resulting in erroneous depth and/or dive time remaining displays. • If you are in doubt about the accuracy of your Pro Plus depth readings, DO NOT attempt to dive with it until it has been inspected by Oceanic Customer Service. • Never pressure test the Pro Plus in an air environment.
Datamax Pro Plus REFERENCE refer to page 80 for - WARNINGS and SAFETY RECOMMENDATIONS 79
® 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 Pro Plus takes place when the unit is activated.
Datamax Pro Plus NO DECOMPRESSION LIMITS Note how the No Decompression Limits for the Pro Plus are contrasted with the U.S. Navy limits (Fig. 81). For most depths, the Pro Plus 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 Pro Plus.
® 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. 82 - Oxygen Exposure Limits 82 Predicted exposure limits and oxygen calculations of the Pro Plus are based on maximum exposure durations (Fig. 82) published by the National Oceanic and Atmospheric Administration in the October 1991 NOAA Diving Manual.
Datamax Pro Plus etc. 160 120 80 40 Tissue Half-Time 20 40 CZ 9^ 9v CZ CZ NO DECO 10 Display Seen by the Diver NO DECO CZ 9 CZ 8 NO DECO 7 NO DECO CZ NO DECO NO DECO CZ CZ NO DECO CZ 6 11 Tissue Half-Time DECO DECO DECO NO DECO etc. NO DECO NO DECO CZ DECO DECO DECO DECO DECO DECO DECO 20 No. of Segments Fig. 83 - Tissue Compartment Control Display Seen by the Diver 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) • Hour Format (12/24) • Audible Alarm (On/Off) • Hour, Minute • Depth Alarm Value • Sampling Rate • Turn Pressure Alarm Value • Units (Imperial/Metric) • End Pressure Alarm Value • FO2 Default (On/O
Datamax Pro Plus 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 • Cylinder Pressure • 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.
® SPECIFICATIONS (continued) OPERATIONAL PERFORMANCE Function: • Depth • Timers Accuracy: ± 1% of full scale 1 second per day Dive Counter: • Displays Dives #1, 2, 3, 4, 5, 6, 7, 8, 9, 0 (continues #1 to #0) • Displays #0 for dives #10, 20, etc.
Datamax Pro Plus 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 Pro Plus). 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.
® GLOSSARY (continued) Diagnostic Mode - The first display seen on dive computers after initial activation during which time a self–check for internal faults is performed. 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.
Datamax Pro Plus GLOSSARY (continued) Oceanglo® - An Oceanic name for an instrument backlight feature. OceanLog™ - An Oceanic name for a PC interface hardware/software package. 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.
® PRO PLUS 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 90 RESP Date of purchase ______________ AS A RESPONSIBLE DIVER I UNDERSTAND AND ASSUME THE RISKS I MAY ENCO
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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.
