Oceanic VEO 100 Nx Manual
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Oceanic VEO 100 Nx Manual

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Summary of Contents for Oceanic VEO 100 Nx

  • Page 2 DIVE COMPUTERS 101 DIVE COMPUTERS 101 • Dive Computers 101 is designed to provide divers with the theory, operation and benefits of multilevel diving with Oceanic Dive Computers. • OBJECTIVES: • Have A basic understanding of how Dive Computers work •...
  • Page 3 HOW A DIVE COMPUTER WORKS HOW A DIVE COMPUTER WORKS • Sensors send data to the Analog to Digital (A/D) Converter. • A/D Converter changes analog data to digital signals. • The Micro Processor calculates the data and presents it to the diver via the LCD Display.
  • Page 4 COMPUTERS vs. TABLES COMPUTERS vs. TABLES • When using basic dive tables, the profile is based on the maximum depth reached for the total time of the dive. As a example: a diver performs a dive for a total time of 24 minutes and the deepest part of the dive was 88 feet.
  • Page 5 COMPUTERS vs. TABLES COMPUTERS vs. TABLES...
  • Page 6 COMPUTERS vs. TABLES COMPUTERS vs. TABLES • Diving Computers calculate a more accurate profile. They use the same (or similar) algorithms as the tables and simply perform those same calculations several times a second. Going back to the previous example, a Dive Computer would take into account that only 2 minutes were spent a 88 feet.
  • Page 7 COMPUTERS vs. TABLES COMPUTERS vs. TABLES...
  • Page 8 COMPUTERS vs. TABLES COMPUTERS vs. TABLES • When used properly, diving computers are very safe. Because they automatically read the exact depth and duration at every point of the dive they can potentially reduce diver error. They also automatically time surface intervals as soon as a diver surfaces.
  • Page 9 DIVE COMPUTER THEORY DIVE COMPUTER THEORY • OBJECTIVES: • Have A basic understanding of the Decompression Model utilized by Oceanic Dive Computers • Have a basic understanding of Tissue Compartments and how they are graphically represented on an Oceanic Dive Computer...

  • Page 10: Decompression Model

    Michael Powell produced the most comprehensive data set that exists for recreational divers to this day. These data were used to validate the PADI Recreational Dive Planner and are the basis of the algorithm used in all Oceanic Personal Dive Computers (PDCs).
  • Page 11 DECOMPRESSION MODEL DECOMPRESSION MODEL • The programs within an Oceanic PDC simulate the absorption of nitrogen into the body by using a mathematical model. This model is merely a way to apply a limited set of data to a large range of experiences.
  • Page 12 DECOMPRESSION MODEL DECOMPRESSION MODEL • Still, using an Oceanic PDC, just as using the dive tables, is no guarantee of avoiding decompression sickness. • Every diver’s physiology is different, and can even vary from day to day. No machine can predict how your body will react to a particular dive profile.

  • Page 13: Multiple Tissue Tracking

    An Oceanic PDC tracks twelve tissue compartments with halftimes ranging from 5 to 480 minutes. The Tissue Loading (Nitrogen) Bar Graph provided on most Oceanic PDCs always displays the controlling compartment that is the only one important at that time.
  • Page 14 At any particular point, one tissue compartment may be absorbing nitrogen, while another that was previously higher may be off-gassing. • NOTE: This feature of the Decompression Model is the basis of multilevel diving, one of the most important contributions that an Oceanic PDC offers you.
  • Page 15 Diving with the VEO 100 Nx Diving with the VEO 100 Nx...

  • Page 16: Features & Displays

    FEATURES & DISPLAYS FEATURES & DISPLAYS • OBJECTIVES: • Be able to identify numeric and graphic displays of the Veo 100 Nx • Understand the function of the Control Button • Identify and understand the information presented via bar graphs •...

  • Page 17: Full Display

    FULL DISPLAY FULL DISPLAY • Each numeric and graphic display represents a unique piece of information. It is imperative that you understand the formats, ranges, and values of the information represented to avoid any possible misunderstanding that could result in error.

  • Page 18: Control Button

    CONTROL BUTTON CONTROL BUTTON • The Control Button allows you to select display options and access specific information when you want to see it. • It is also used to enter settings.

  • Page 19: Tissue Loading Bar Graph

    TISSUE LOADING BAR GRAPH TISSUE LOADING BAR GRAPH • The Nitrogen Tissue Loading Bar Graph represents tissue loading of nitrogen, showing your relative no decompression or decompression status. • The Tissue Loading (Nitrogen) Bar Graph offers you a convenient way to consistently monitor how close you are coming to the No Decompression Limit.
  • Page 20 TISSUE LOADING BAR GRAPH TISSUE LOADING BAR GRAPH • As your depth and elapsed dive time increase, segments will add to the Graph, and as you ascend to shallower depths, the Bar Graph will begin to recede, indicating that additional no decompression time is allowed for multilevel diving.
  • Page 21 TISSUE LOADING BAR GRAPH TISSUE LOADING BAR GRAPH • The Tissue Loading Bar Graph monitors 12 different nitrogen compartments simultaneously and displays the one that is in control of your dive. It is divided into a No Decompression (normal) zone, a Caution zone (also No Decompression), and a Decompression (danger) zone.
  • Page 22 Zone as a visual reference to place a wider margin of protection between you and the No Decompression Limit. • Oceanic suggests that the Tissue Loading Bar Graph should always be in the No Decompression zone when leaving the water.
  • Page 23 TISSUE LOADING BAR GRAPH TISSUE LOADING BAR GRAPH • 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.
  • Page 24 O2 ACCUMULATION BAR GRAPH O2 ACCUMULATION BAR GRAPH • NOTE: Displays associated with oxygen and the O2 Bar Graph will only appear if FO2 has been set at a value other than “Air” (e.g., a numerical value).
  • Page 25 O2 ACCUMULATION BAR GRAPH O2 ACCUMULATION BAR GRAPH • The Oxygen Accumulation Bar Graph represents oxygen loading, showing the maximum of either per dive accumulated oxygen, or 24 hour period accumulated oxygen.
  • Page 26 O2 ACCUMULATION BAR GRAPH O2 ACCUMULATION BAR GRAPH • As your oxygen exposure (accumulation) increases during the dive, segments will add to the Bar Graph, and as loading decreases, it will begin to recede, indicating that additional exposure is allowed for that dive and 24 hour period.

  • Page 27: Variable Ascent Rate Indicator

    VARIABLE ASCENT RATE VARIABLE ASCENT RATE INDICATOR INDICATOR • Most Oceanic PDCs are configured with a VARI or Variable Ascent Rate Indicator (bar graph) that shows how fast you are ascending. • The VARI provides a visual representation of ascent speed (i.e., an...
  • Page 28 VARIABLE ASCENT RATE VARIABLE ASCENT RATE INDICATOR INDICATOR • When you exceed the maximum ascent rate allowed for the depth you are at, the bar graph will enter the Alarm (Too Fast) Zone. • You will be alerted by all segments of the bar graph flashing which will stop when your ascent rate is...
  • Page 29 VARIABLE ASCENT RATE VARIABLE ASCENT RATE INDICATOR INDICATOR • The segments of the Variable Ascent Rate Indicator represent two sets of speeds which change at a reference Depth of 60 FT (18 M). DEEPER THAN 60 FT (18 M) 0 SEGMENTS = 0-20 FPM (0-6 MPM) 1 SEGMENT = 21-50 FPM (6.5-15 MPM)

  • Page 30: Depth Displays

    DEPTH DISPLAYS DEPTH DISPLAYS • During a dive, the Current Depth display indicates depths from 0 to 330 FT (99.9 M) in 1 FT (0.1 M) increments.
  • Page 31 DEPTH DISPLAYS DEPTH DISPLAYS • By accessing alternate Main Dive Displays, the Maximum Depth reached during that dive will be displayed in the center/left portion of the display.
  • Page 32 DEPTH DISPLAYS DEPTH DISPLAYS • During a Decompression Dive, the required Ceiling Stop Depth is displayed in the center of the screen.

  • Page 33: Time Displays

    TIME DISPLAYS TIME DISPLAYS • The Main Time display is located in the lower portion of the display and a second time display is located in the center/right. • Both displays are identified by a clock icon. Time of Day can be set for 12 hour format (AM/PM) or 24 hour format.
  • Page 34 TIME DISPLAYS TIME DISPLAYS • Time displays are shown in hour:minute format (i.e., 1:16 represents 1 hour and 16 minutes, not 116 minutes!).

  • Page 35: No Decompression Dive Time Remaining

    NO DECOMPRESSION DIVE TIME NO DECOMPRESSION DIVE TIME REMAINING REMAINING • No decompression Dive Time Remaining is the maximum amount of time that you can stay at your present depth before entering a decompression situation. • It is calculated based on the amount of nitrogen absorbed by hypothetical tissue compartments.
  • Page 36 NO DECOMPRESSION DIVE TIME NO DECOMPRESSION DIVE TIME REMAINING REMAINING • Whichever one is closest to this maximum level is the controlling compartment for that depth. • Its resulting value will be displayed numerically along with the No Decompression Dive icon and graphically as the Tissue Loading Bar Graph.
  • Page 37 NO DECOMPRESSION DIVE TIME NO DECOMPRESSION DIVE TIME REMAINING REMAINING • The Dive Computer constantly monitors no decompression status and oxygen exposure. • The Dive Time Remaining display will indicate the time that is more critical for you at that particular moment (i.e.;...

  • Page 38: Power Supply

    POWER SUPPLY POWER SUPPLY • The Veo 100 Nx utilizes one (1) CR 2450 Lithium cell that should provide 300 hours of continuous, or 50 activation periods, of operation. • If you conduct 1 dive each time the unit is activated, you should obtain approximately 50 dives.
  • Page 39 POWER SUPPLY POWER SUPPLY • A Battery Indicator provides an indication of battery condition. • When power is sufficient for normal unit operation, the Indicator will be displayed during Surface Mode. The Indicator will not be displayed during Dive Mode(s).
  • Page 40 POWER SUPPLY POWER SUPPLY • When 75% of the Rated Power has been consumed, the lower bar of the Battery Indicator (only segment) will be displayed, and the outline of the Indicator will flash once per second as a warning that the Battery is to be replaced prior to conducting any further dives.
  • Page 41 POWER SUPPLY POWER SUPPLY • Upon decreasing to a voltage level that will no longer sustain proper operation, the Indicator will flash 5 times followed by shutdown of the unit. • If a Low Battery condition exists when the unit is activated (by pressing the button), the graphic bAT and the Battery Indicator...
  • Page 42 POWER SUPPLY POWER SUPPLY • If the unit did not display a Low Battery Condition 'prior to‘ entering the Dive Mode, and a Low Battery Condition occurs during the dive, there will be sufficient battery power to maintain unit operation for the remainder of 'that dive'. The Battery Indicator will then appear after the dive upon entry into Surface Mode.
  • Page 43 EXCERCISES USING THE PDC EXCERCISES USING THE PDC • Identify the following Display components: a. Icon – Operating Mode b. Icon – Descend Arrow/Deco Ceiling Stop Bar/Ascend Arrow c. Graphic – Maximum PO2 d. Tissue Loading Bar Graph e. Graphic – Max Depth Icon –...
  • Page 44 EXCERCISES USING THE PDC EXCERCISES USING THE PDC • Identify the following Display components: a. Icon – Operating Mode b. Icon – Descend Arrow/Deco Ceiling Stop Bar/Ascend Arrow c. Graphic – Maximum PO2 d. Tissue Loading Bar Graph e. Graphic – Max Depth f.

  • Page 45: Activation & Setup

    Understand how to manually activate the Dive Computer • Understand how to access the Serial Number and Firmware Revision • Understand the Veo 100 Nx’s calibration and operation at high altitude • Understand the information displayed during the Surface Sequence •...
  • Page 46 ACTIVATION ACTIVATION • To Manually Activate the Veo 100 Nx, press and release the Button. • Upon manual activation, the unit will enter Diagnostic Mode, displaying all segments of the LCD as 8's, followed by dashes (- -), then a countdown from 9 to 0.
  • Page 47 ACTIVATION ACTIVATION • When the button is held depressed and the Diagnostic countdown reaches 00, a Serial Number screen appears displaying the unit’s Serial Number and firmware code Revision Number as long as the button is held depressed. Upon releasing the button, the unit shuts Off.
  • Page 48 ACTIVATION ACTIVATION • After manual activation, it will also check the ambient barometric pressure, and calibrate its present depth as zero. At elevations of 2,000 feet (610 meters) or higher, it will recalibrate itself to measure depth at that higher Altitude.

  • Page 49: Altitude Compensation

    ALTITUDE COMPENSATION ALTITUDE COMPENSATION • Atmospheric pressure decreases as Altitude increases above sea level. Weather systems and ambient temperature also affect barometric pressures. Consequently, depth reading instruments that do not compensate for the decrease in ambient pressure indicate depth readings shallower than the depth they are actually at.
  • Page 50 • The Veo 100 Nx senses ambient pressure when it is activated, every 15 minutes while it is activated, or every 30 minutes when it is not activated.
  • Page 51 ALTITUDE COMPENSATION ALTITUDE COMPENSATION • At an Altitude of 2,000 feet (610 meters), it will automatically recalibrate itself to measure depth in feet of fresh water rather than feet of sea water. It will then readjust the no decompression and oxygen limits at additional intervals of 1,000 feet (305 meters).

  • Page 52: Surface Sequence

    SURFACE SEQUENCE SURFACE SEQUENCE • While on the surface, the unit will automatically scroll through a Sequence of displays including: • Surface Mode • Fly Mode • DeSat Mode • Plan Mode • As the Surface Sequence is scrolling, you can use the button to access Log Mode and Set Mode.

  • Page 53: Surface Mode

    SURFACE MODE SURFACE MODE • Surface Mode, identified by the Surface Time icon, follows Diagnostic Mode after Activation. • Information includes Dive Number (0 if no dive made yet), Temperature (and icon), Time of Day (with icon), the Battery Indicator, and Surface Time (with flashing colon).
  • Page 54 SURFACE MODE SURFACE MODE • The Veo 100 Nx will also automatically activate by Wet Contact (only if Wet Activation is set ON). • If no dive is made within 2 hours after initial activation, the unit will automatically deactivate.

  • Page 55: Set Mode

    SET MODE SET MODE • After gaining access to Set Mode, settings can be made in sequence one after the other, or you can access a specific item that you want to set, bypassing others. • If the button is not pressed during a 2 minute period while in the Set Mode, the unit will revert to Surface Mode and resume the Surface Sequence scroll.
  • Page 56 SET MODE ACCESS & TIMING SET MODE ACCESS & TIMING • To access Set Mode while the Surface Sequence is scrolling, depress the button for 2 seconds. • Upon entry into Set Mode, the Set FO2 screen will be displayed with the Set Point flashing. •...
  • Page 57 SET: FO2 SET: FO2 (NITROX) (NITROX) • Each time the unit is activated, FO2 will be automatically set for a default value of AIR which can then be changed to values between 21 and 50% in increments of 1%. • Press/release the button repeatedly to increase the FO2 value from 21 to...
  • Page 58 SET: FO2 SET: FO2 (NITROX) (NITROX) • For each FO2 value that appears, the display indicates the Maximum Depth that can be achieved for a PO2 of 1.60 ATA or the PO2 Alarm Set Point. If FO2 is set for AIR, no Depth value will be displayed.

  • Page 59: Set: Wet Activation

    SET: WET ACTIVATION SET: WET ACTIVATION • Factory set for ON, Wet Activation can also be set OFF (disabled) to prevent inadvertent activation during travel or storage. • When set ON, the Veo 100 Nx will automatically Activate and enter Dive Mode upon immersion in water.
  • Page 60 SET: WET ACTIVATION SET: WET ACTIVATION • After having set and accepted the FO2 setting, the Set Wet Activation screen appears with the Set Point flashing. • Press/release the button (less than 2 seconds) to toggle between ON and OFF. •...

  • Page 61: Set: Units Of Measure

    SET: UNITS OF MEASURE SET: UNITS OF MEASURE • Factory set for Imperial, Units of can also be set for Metric. • After having set and accepted Wet Activation, the Set Units screen appears with the Set Point flashing.
  • Page 62 SET: UNITS OF MEASURE SET: UNITS OF MEASURE • Press/release the button (less than 2 seconds) to toggle between Imperial (FT and F) and Metric (M and C) units. • Depress the button for 2 seconds to accept the Units Set Point and advance to Set Hour Format.

  • Page 63: Set: Hour Format

    SET: HOUR FORMAT SET: HOUR FORMAT • Factory set for 12 Hour (12: AM to 11: PM), the Hour Format can also be set for 24 Hour (0: to 23: hours). • After having set and accepted Units, the Set Hour Format screen appears with the Set Point flashing.
  • Page 64 SET: HOUR FORMAT SET: HOUR FORMAT • Press/release the button (less than 2 seconds) to toggle between 12 and • Depress the button for 2 seconds to accept the Set Point and advance to Set Time.
  • Page 65 SET: TIME SET: TIME • Set for factory local time, the Time can be set to values between 0:00 and 12:59 (AM/PM) or 0:00 and 23:59. • After having set and accepted Hour Format, the Set Time screen appears with the Hour Set Point flashing.
  • Page 66 SET: TIME SET: TIME • Press/release the button repeatedly (less than 2 seconds each time) to advance the Hour Set Point in increments of 1 Hour per press of the button. • Depress the button for 2 seconds to accept the Hour Set Point, the Minutes Set Point flashes.
  • Page 67 SET: TIME SET: TIME • Press/release the button repeatedly (less than 2 seconds each time) to advance the Minute Set Point in increments of 1 Minute per press of the button. • Depress the button for 2 seconds to accept the Minute Set Point and advance to Set PO2 Alarm.

  • Page 68: Set: Po2 Alarm

    SET: PO2 ALARM SET: PO2 ALARM (NITROX) (NITROX) • Factory set for 1.60 (ATA), the PO2 Alarm can be set to values between 1.20 and 1.60 (ATA) in increments of .10 (ATA). • After having set and accepted the Time, the Set PO2 Alarm screen appears with the Set Point flashing.
  • Page 69 SET: PO2 ALARM SET: PO2 ALARM (NITROX) (NITROX) • Press/release the button repeatedly (less than 2 seconds each time) to advance the PO2 Alarm setting in increments of .10 (ATA) per press of the button. • Depress the button for 2 seconds to accept the PO2 Alarm Set Point and advance to Set FO2...

  • Page 70: Set: Fo2 50% Default

    SET: FO2 50% DEFAULT SET: FO2 50% DEFAULT (NITROX) (NITROX) • Factory set ON, the FO2 50% Default feature can be set to OFF. The effects of this feature being ON or OFF are described later. • After having set and accepted the PO2 Alarm Set Point, the Set FO2 50% Default screen...
  • Page 71 SET: FO2 50% DEFAULT SET: FO2 50% DEFAULT (NITROX) (NITROX) • Press/release the button (less than 2 seconds) to toggle between ON and OFF. • Depress the button for 2 seconds to accept the Set Point and advance to the Surface Mode screen and Surface Sequence.
  • Page 72 EXCERCISES USING THE PDC EXCERCISES USING THE PDC • Manually activate the Veo 100 Nx • Access Set Mode and make the following modifications: • Set FO2: AIR • Set Wet Activation: ON • Set Units: Imperial • Set Hour Format: 12 •...
  • Page 73 DIVE PLANNING DIVE PLANNING • OBJECTIVES: • Perform pre-dive planning...
  • Page 74 DIVE PLANNING DIVE PLANNING • The Pre Dive Planning Sequence (PDPS), which appears after Surface Mode prior to the first dive of a new activation period, provides a sequence of theoretical dive times available for depths ranging from 30 FT (9 M) to 190 FT (57 M) in 10 FT (3 M) increments.
  • Page 75 DIVE PLANNING DIVE PLANNING • No decompression times (limits), or NDLs, are only displayed for depths where there is at least 3 minutes of theoretical dive time available at the depth, taking into account a descent rate of 60 feet (18 meters) per minute. •...
  • Page 76 DIVE PLANNING DIVE PLANNING • For repetitive dives, the PDPS indicates adjusted dive times that are available for the next dive, based on residual nitrogen or oxygen accumulation (whichever is in control) following the last dive and surface interval. It appears after the SAT screen in the scrolling Surface Sequence (SURF >...
  • Page 77 EXCERCISES USING THE PDC EXCERCISES USING THE PDC • Plan a dive to 100 feet • What is the no-deco time allowed?

  • Page 78: Dive Modes

    DIVE MODES DIVE MODES • OBJECTIVES: • Understand the underwater use of the control button • Understand the inform provided on Dive Mode displays • Understand how to establish a personal level of conservatism by monitoring the Tissue Loading Bar Graph •...

  • Page 79: Control Of Displays

    CONTROL OF DISPLAYS CONTROL OF DISPLAYS • During No Decompression conditions, various displays of information (up to 4) are available. Each provides Depth, Dive Time Remaining, and additional information. The intent of this feature is to allow the diver to select which information is on display at any given time during the dive.
  • Page 80 CONTROL OF DISPLAYS CONTROL OF DISPLAYS • During conditions in which cautionary type information is displayed (e.g., Decompression, High PO2, High O2, etc.), there is a Main Display of important information relevant to the specific condition. Other screens of information can be accessed, which automatically revert to the Main Display after 3 seconds.

  • Page 81: No - Deco Dive Mode

    DECO DIVE MODE DECO DIVE MODE • The Veo 100 Nx will automatically enter the No Decompression Dive Mode when you descend to 5 FT (1.5 M). • NO-DECO DIVE MAIN DISPLAY #1 Information includes: Current Depth, Dive Time Remaining (and Mode icon), and the applicable bar graphs.
  • Page 82 DECO DIVE MODE DECO DIVE MODE • Press/release the button 1 time (< 2 seconds) to change the screen to No Deco Dive Main Display • NO-DECO DIVE MAIN DISPLAY #2 Information includes: Current Depth, Maximum Depth for that dive (and icon), Elapsed Dive Time (and icon), Dive Time Remaining (and Mode icon), and the...
  • Page 83 DECO DIVE MODE DECO DIVE MODE • Press/release the button 1 time (< 2 seconds) to change the screen to No Deco Dive Main Display • NO-DECO DIVE MAIN DISPLAY #3 Information includes: Current Depth, Temperature, Time of Day, Dive Time Remaining (and Mode icon), and the applicable bar graphs.
  • Page 84 DECO DIVE MODE DECO DIVE MODE • Press/release the button 1 time (< 2 seconds) to change the screen to No Deco Dive Main Display #4. • NO-DECO DIVE MAIN DISPLAY #4 will not appear when FO2 is set for AIR.
  • Page 85 DECO DIVE MODE DECO DIVE MODE • Press/release the button 1 time (< 2 seconds) to return to No Deco Dive Main Display #1.

  • Page 86: Ascending To The Surface

    ASCENDING TO THE SURFACE ASCENDING TO THE SURFACE • While ascending to shallower depths, the segments that have filled up the Tissue Loading Bar Graph will begin to recede, offering a graphic representation of you multilevel diving capability. • By ‘backing off’ on the bar graph (maintaining fewer segments), you can establish a personal level of conservatism and margin of protection.
  • Page 87 ASCENDING TO THE SURFACE ASCENDING TO THE SURFACE • If you entered Decompression Mode, you must not complete your ascent until the Tissue Loading Bar Graph is at least inside the No Decompression Zone. • You should make every effort to complete all of your ascents with the Tissue Loading Bar Graph inside the No Decompression Zone.
  • Page 88 ASCENDING TO THE SURFACE ASCENDING TO THE SURFACE • While you cannot provide a guarantee against the occurrence of decompression sickness, you may choose your personal zone of caution based upon your individual age, physique, excessive weight, training, experience, etc. to reduce the statistical risk.

  • Page 89: No - Deco Safety Stop

    DECO SAFETY STOP DECO SAFETY STOP • Upon ascending to 20 FT (6 M) on any No Decompression dive in which Depth exceeded 30 FT (9 M), a Safety Stop screen will appear displaying a Stop at 15 FT (4.5 M) with a 3 minute Countdown Timer.
  • Page 90 DECO SAFETY STOP DECO SAFETY STOP • The Safety Stop will be displayed until the countdown times out, or another descent is made below 30 FT (10 M), or the diver surfaces. • There is no Penalty for surfacing prior to completing the Safety Stop.
  • Page 91 Limits, and a critical reason to avoid entering Decompression. • If you dive in situations where your trip would be ruined or your Safety would be jeopardized by losing the use of your Veo 100 Nx, a backup instrument system is highly recommended.
  • Page 92 EXCERCISES USING THE PDC EXCERCISES USING THE PDC • NO-DECO DIVE MAIN DISPLAY #1 • Fill in the display using the following information: • Depth: 85 Feet • Dive Time Remaining: 36 Minutes • Tissue Loading Bar Graph: 5 segments •...
  • Page 93 EXCERCISES USING THE PDC EXCERCISES USING THE PDC • NO-DECO DIVE MAIN DISPLAY #2 • Fill in the display using the following information: • Depth: 85 Feet • Dive Time Remaining: 36 Minutes • Tissue Loading Bar Graph: 5 segments •...
  • Page 94 EXCERCISES USING THE PDC EXCERCISES USING THE PDC • NO-DECO DIVE MAIN DISPLAY #3 • Fill in the display using the following information: • Depth: 85 Feet • Dive Time Remaining: 36 Minutes • Tissue Loading Bar Graph: 5 segments •...

  • Page 95: Post Dive Modes

    POST DIVE MODES POST DIVE MODES • OBJECTIVES: • Understand the information displayed in Post-Dive Surface Mode • Understand the information displayed, additional information available and operation during the Transition Period • Understand the information displayed, additional information available and operation following the Transition Period •...

  • Page 96: Post Dive Surface Mode

    POST DIVE SURFACE MODE POST DIVE SURFACE MODE • When you ascend to 2 FT (0.6 M) or shallower, the Veo 100 Nx will enter Surface Mode and begin counting Surface Interval.

  • Page 97: Transition Period

    TRANSITION PERIOD TRANSITION PERIOD • The first 10 minutes is, in affect, a Transition Period during which time the following information is displayed: • Number of that dive (during that activation period) • Temperature (ambient) • Time of Day and icon •...
  • Page 98 TRANSITION PERIOD TRANSITION PERIOD • During the Transition Period, Log Mode can be accessed. No other modes (e.g., PDPS, Fly, DeSat, Set) are accessible. • To view the Log for that dive during the transition period, press/release the button (less than 2 seconds).
  • Page 99 TRANSITION PERIOD TRANSITION PERIOD • If you descend during the 10 minute Transition Period, time underwater will be considered a continuation of that dive. The time at the surface (if less than 10 minutes) will not be added as Elapsed Dive Time.

  • Page 100: After The Transition Period

    AFTER THE TRANSITION PERIOD AFTER THE TRANSITION PERIOD • Once 10 minutes have elapsed, the Surface Mode icon and Surface Interval time display colon stop flashing indicating that the Dive and Transition Period are completed, and a subsequent descent will be considered a new dive.
  • Page 101 TIME TO FLY / DESAT TIME TO FLY / DESAT • The Time to Fly and DeSat Timers begin counting down 10 minutes after surfacing from a dive (after the Transition Period). • The FLY countdown always begins at 23:50 (hr:min) and the DeSat countdown at 23:50 (maximum).
  • Page 102 TIME TO FLY / DESAT TIME TO FLY / DESAT • The Time to Fly counter is provided to assist you with deciding when enough surface time has elapsed to fly (or travel to higher elevations). • 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.
  • Page 103 DIVE PLANNING DIVE PLANNING • After a dive, the PDPS provides 'adjusted' No Decompression Limits based on residual nitrogen calculated to be remaining from that dive and previous dives in the same series.

  • Page 104: Log Mode

    LOG MODE LOG MODE • The Veo 100 Nx will store up to 12 dives in its Log for viewing. Once the Log is full (12 dives), each subsequent dive will then overwrite the oldest dive stored in the Log. It is therefore suggested that you transfer the Log's data to your log book at the end of each day of diving.
  • Page 105 LOG MODE LOG MODE • The first dive conducted each time the unit is Activated will be #1, therefore there may be multiple #1 dives in the Log. • Each dive has 3 Log screens - Dive Identifier (Preview), Dive Data, and O2 Data (if a Nitrox dive).
  • Page 106 ACCESSING LOG MODE ACCESSING LOG MODE • Press/release the button momentarily (< 2 seconds) while the unit is scrolling through the Surface Sequence. • The first screen (Dive Preview/Identifier) of the most recent dive conducted will appear displaying: • Log Mode icon •...
  • Page 107 ACCESSING LOG MODE ACCESSING LOG MODE • While viewing the Preview screen, press/release the button momentarily to view the second screen. • Information includes: • Log Mode icon • Maximum Depth • Minimum temperature • Surface Interval - prior to that dive •...
  • Page 108 ACCESSING LOG MODE ACCESSING LOG MODE • While viewing the Preview screen, press/release the button momentarily to view the third screen. • Information includes: • Log Mode icon • Graphic FO2 (at top) and FO2 Set Point (at bottom) • Maximum PO2 level •...
  • Page 109 2 HOURS AFTER THE DIVE 2 HOURS AFTER THE DIVE • Two hours after the last dive, the Surface Sequence will no longer be displayed. The Time to Fly and DeSat countdown screens will be displayed alternately for 3 seconds each until they count down to 0:00 or another dive is made.
  • Page 110 2 HOURS AFTER THE DIVE 2 HOURS AFTER THE DIVE • To access other modes or enter settings, press/release the button to reactivate the Surface Sequence. • The unit will again revert to the Time to Fly and Desaturation countdowns after 2 hours, if the button is not pressed.

  • Page 111: Wet Contacts

    WET CONTACTS WET CONTACTS • If the graphic H2O appears during the Surface Mode, Fly Mode, or Desaturation Mode, it is an indication that the wet activation contacts are bridged (still wet) and the unit must be rinsed in fresh water and thoroughly dried.
  • Page 112 WET CONTACTS WET CONTACTS • The contacts are located in the button stem and back of the case. • Once the unit is dry, the graphic H2O will disappear from the display. • If the unit is not cleaned and dried prior to the countdowns reaching 0:00 (hr:min), or making another dive, it will shut off then automatically reactivate.
  • Page 113 EXCERCISES USING THE PDC EXCERCISES USING THE PDC • Access the Log Book and identify the following for the most recent dive: • Dive Number • Time of Day • Maximum Depth • Elapsed Dive Time • Surface Interval...

  • Page 114: Advanced Functions

    ADVANCED FUNCTIONS ADVANCED FUNCTIONS • OBJECTIVES: • Understand the information and bar graphs displayed when diving with Nitrox • Understand the default Nitrox settings following a dive • Understand the information displayed and procedures for high PO2 and high O2 accumulation situations •...

  • Page 115: Diving With Nitrox

    DIVING WITH NITROX DIVING WITH NITROX • After Activation, the Veo 100 Nx will operate as an AIR computer without displaying information associated with oxygen calculations, unless it is set for a percentage of oxygen (FO2) other than AIR (a numerical value between 21 and 50 %).
  • Page 116 DIVING WITH NITROX DIVING WITH NITROX • When set for an FO2 value of AIR, the Veo 100 Nx will perform calculations the same as if FO2 were set for 21% oxygen, internally accounting for oxygen loading for any subsequent Nitrox dives. However, oxygen related displays, warnings, and the O2 Bar Graph will not appear on the display for that dive, or subsequent dives,...
  • Page 117 DIVING WITH NITROX DIVING WITH NITROX • Once a dive is made with the unit set as a Nitrox computer (FO2 set for a numerical value), it cannot be programmed to operate as an AIR computer until 24 hours after the last dive. AIR will not be displayed as an option in the FO2 Mode.
  • Page 118 DIVE PLANNING DIVE PLANNING (NITROX) (NITROX) • With each Depth displayed by the PDPS, you will see either predicted no decompression limits (NDLs) based upon your previous dive profiles (if calculated to be nitrogen controlled), or predicted oxygen tolerance limits (OTLs) based upon either a single dive exposure or your 24 hour accumulation of oxygen (if calculated to be oxygen controlled).
  • Page 119 DIVE PLANNING DIVE PLANNING (NITROX) (NITROX) • The Maximum Operating Depth allowed for a PO2 level of 1.60 (ATA) for the FO2 setting will also be displayed. • If the Tissue Loading Bar Graph is displayed, that next dive is calculated to be controlled by nitrogen loading.
  • Page 120 HIGH PO2 HIGH PO2 • When partial pressure of oxygen (PO2) becomes equal to, or greater than, 1.40 ATA, or 0.20 ATA less than the PO2 Alarm Set Point (a user setting); the current PO2 value, PO2 symbol, O2 segment of the O2 Bar Graph, and UP Arrow will appear on the Main Display as a warning...
  • Page 121 HIGH PO2 HIGH PO2 • If PO2 continues to increase, the value displayed will increase toward a maximum display value of 5.50 ATA in increments of .01 ATA. When it reaches a value of 1.60 ATA, or the PO2 Alarm Set Point (a user setting);...

  • Page 122: High O2 Accumulation

    HIGH O2 ACCUMULATION HIGH O2 ACCUMULATION • The O2 Bar Graph displays either oxygen accumulated during that Nitrox dive, or during the repetitive Nitrox dives you conduct during that 24 hour period, whichever of the two is greater at that time. •...
  • Page 123 HIGH O2 ACCUMULATION HIGH O2 ACCUMULATION • If the theoretical amount of oxygen accumulated equals, or exceeds, the limit for a single exposure, or the exposure limit for a 24 hour period, Oxygen Dive Time Remaining becomes zero (0:00) and the O2 Bar Graph will enter the O2 (Danger) Zone.
  • Page 124 DECOMPRESSION DECOMPRESSION • Oceanic PDCs are sophisticated instruments designed with capabilities that go beyond the range of recreational diving. They can help you to avoid and, if necessary, manage decompression.

  • Page 125: Decompression Dive Mode

    DECOMPRESSION DIVE MODE DECOMPRESSION DIVE MODE • Upon entering Decompression Mode, the Mode icon will change from No Deco to Deco. • The UP Arrow and Deco Bar will flash if you are greater than 10 FT (3 M) deeper than the Required Stop Depth.

  • Page 126: Total Ascent Time

    TOTAL ASCENT TIME TOTAL ASCENT TIME • Total Ascent Time includes Stop Times required at all required decompression ceilings and vertical Ascent Time calculated at 60 FPM (18 MPM) for depths deeper than 60 FT (18 M), and 30 FPM (9 MPM) per minute for depths of 60 FT (18 M) and shallower.
  • Page 127 MANAGING DECOMPRESSION MANAGING DECOMPRESSION • To fulfill your decompression obligation, you should make a safe controlled ascent to a depth slightly deeper than, or equal to, the Required Ceiling Stop Depth indicated and decompress for the Stop Time indicated.
  • Page 128 MANAGING DECOMPRESSION MANAGING DECOMPRESSION • You should stay slightly deeper than the required stop depth indicated until the next shallower stop depth appears. • Then, you can slowly ascend to, but not shallower than, that indicated ceiling stop depth.
  • Page 129 MANAGING DECOMPRESSION MANAGING DECOMPRESSION • 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 than the Required Stop Depth indicated until the next shallower Stop Depth appears.
  • Page 130 All Oceanic Dive Computers enter Violation Mode when a situation totally exceeds its capacity to predict an ascent procedure. • When you exceed certain limits, Oceanic Dive Computers alert you with visual and audible (select models) warnings and operate in special Violation Modes.
  • Page 131 VIOLATION DIVE MODES VIOLATION DIVE MODES • Three conditions cause Oceanic Dive Computers to enter Violation Mode: • Staying above a required Deco Stop Depth for more than 5 minutes. • Your decompression requires a Ceiling Stop Depth greater than 60 FT (21 M).
  • Page 132 VIOLATION DIVE MODES VIOLATION DIVE MODES • The Veo 100 Nx would then operate with limited functions in Violation Gauge Mode during the remainder of that dive and for 24 hours after surfacing. • Violation Gauge Mode turns the Veo 100 Nx into a digital instrument without any decompression or oxygen monitoring functions.
  • Page 133 VIOLATION DIVE MODES VIOLATION DIVE MODES • While in Violation Modes, the Alternate Displays previously described for Deco Dive Mode can be accessed. • Alternate Displays will automatically revert to the Main (Default) Display after 3 seconds unless the button is pressed to view another Alternate Display.

  • Page 134: Reset (Clear) Feature

    RESET (CLEAR) FEATURE RESET (CLEAR) FEATURE • The Veo 100 Nx is configured with a RESET feature that allows data to be cleared, including Nitrogen and Oxygen calculations and Log Mode entries. • WARNING: Reset after a dive and subsequent...
  • Page 135 EXCERCISES USING THE PDC EXCERCISES USING THE PDC • DECO DIVE MAIN DISPLAY • Fill in the display using the following information: • Depth: 21 Feet • Total Ascent Time: 9 Minutes • Decompression Ceiling: 20 Feet • Decompression Stop Time: 2 Minutes •...

  • Page 136: Maintenance

    MAINTENANCE MAINTENANCE • OBJECTIVES: • Describe care and cleaning procedures • Identify inspection and service interval • Understand basic practices for battery replacement • Understand the procedure for pre-dive inspection of the Dive Computer...

  • Page 137: Care And Cleaning

    Instrument Lens Protector. Small scratches will naturally disappear underwater. • Soak and rinse the Veo 100 Nx in fresh water at the end of each day of diving, and check to ensure that the areas around the low pressure (depth) sensor and button are free of debris or obstructions.
  • Page 138 CARE AND CLEANING CARE AND CLEANING • To dissolve salt crystals, use lukewarm water or a 50% white vinegar/50% fresh water bath. After removal from the bath, place the unit under gently running water and towel dry before storing. • Transport your unit cool, dry, and protected.

  • Page 139: Inspections And Service

    INSPECTIONS AND SERVICE INSPECTIONS AND SERVICE • Your Veo 100 Nx should be inspected annually by an Authorized Oceanic Dealer who will perform a factory prescribed function check and inspection for damage or wear. To keep the 2 year limited warranty in effect, this inspection must be completed one year after purchase (+/- 30 days).

  • Page 140: Battery Replacement

    BATTERY REPLACEMENT BATTERY REPLACEMENT • 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. • To prevent formation of moisture in the Battery Compartment, it is recommended that the Battery be changed in an environment equivalent to the local outdoor temperature and humidity (e.g., do not change the Battery in an air conditioned...
  • Page 141 BATTERY REPLACEMENT BATTERY REPLACEMENT • NOTE: If the old battery can be removed and the new inserted within 8 seconds, nitrogen and oxygen calculations and settings will be retained for repetitive dives.
  • Page 142 • WARNING: If there are any portions of the display missing or appearing dim, or if a low battery condition is indicated, return your Veo 100 Nx to an Authorized Oceanic Dealer for complete evaluation before attempting to use it.
  • Page 143 EXCERCISES USING THE PDC EXCERCISES USING THE PDC • How often should the Dive Computer be inspected by an Authorized Oceanic Dealer? • How long do you have to change a battery between dives to retain nitrogen and oxygen calculations for repetitive dives? •...

  • Page 144: Safety Guidelines

    Read and understand the Operating Manual for your specific model PDC prior to diving with the unit. • Oceanic PDCs are intended for use by recreational divers who have successfully completed a recognized course in SCUBA diving, and have knowledge of the potential risks and hazards of SCUBA diving.
  • Page 145 Operating Manual, return the unit to an Authorized Oceanic Dealer for inspection. • If a low battery condition is indicated, Oceanic strongly recommends that you do not dive until the battery is replaced.
  • Page 146 SAFETY GUIDELINES SAFETY GUIDELINES • Before each Nitrox dive, the FO2 Set Point(s) of the Dive Computer must be verified, or set, to match the percentage of oxygen in the Nitrox mix (or mixes) being used. • The Pre-Dive Planning Sequence provides predicted times for subsequent dives.
  • Page 147 SAFETY GUIDELINES SAFETY GUIDELINES • Oceanic strongly recommends that you review the Pre-Dive Planning Sequence prior to every dive to help you plan your dive as required to avoid exceeding no decompression or oxygen exposure. • To reduce your risk of exposure to...
  • Page 148 • It should not be considered that the capabilities built into Oceanic PDCs provide any implied approval or consent from Oceanic for individuals to exceed the defined limits of recreational dive profiles, as agreed on by all internationally...
  • Page 149 SAFETY GUIDELINES SAFETY GUIDELINES • 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.
  • Page 150 SAFETY GUIDELINES SAFETY GUIDELINES • Check your Dive Computer often during the dive. • Do a safety stop on every dive. • Allow an adequate surface interval between each dive. • Allow adequate surface intervals between each day of diving (within 12 hours or until your computer clears).
  • Page 151 SAFETY GUIDELINES SAFETY GUIDELINES • Special training, equipment and support are necessary for diving deeper than the maximum recommended depth limit for recreational diving, generally agreed to be 130 FT (39 M) by most diving instruction authorities. • Decompression diving, or diving deeper than 130 FT (39 M), will greatly increase your risk of decompression sickness.
  • Page 152 SAFETY GUIDELINES SAFETY GUIDELINES • Decompression diving is inherently hazardous and greatly increases your risk of decompression sickness, even when performed according to the Dive Computer’s calculations. • Using a Dive Computer, just as dive tables, is no guarantee of avoiding decompression sickness.
  • Page 153 SAFETY GUIDELINES SAFETY GUIDELINES • In 1990 the Undersea and Hyperbaric Medical Society (UHMS) published a set of guidelines aimed at minimizing the possibility of decompression sickness due to flying too soon after diving. • The UHMS suggests that divers using standard air cylinders and exhibiting no symptoms of decompression sickness wait 24 hours after their last dive to fly in aircraft with cabin pressures up...
  • Page 154 SAFETY GUIDELINES SAFETY GUIDELINES • The exceptions to this recommendation are: • If a diver had less than 2 hours total accumulated dive time in the last 48 hours, then a 12 hour surface interval before flying is recommended. • Following any dive that required a decompression stop, flying should be delayed for at least 24 hours, and if possible, for 48...
  • Page 155 SAFETY GUIDELINES SAFETY GUIDELINES • Since the 1990 UHMS guidelines were introduced, data from 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 commercial jet liner with cabin pressures up to 8,000 feet...
  • Page 156 SAFETY GUIDELINES SAFETY GUIDELINES • Divers who plan to make daily, multiple dives for several days, or make dives that require decompression stops, should take special precautions and wait for an extended surface interval beyond 12 hours before flight”...
  • Page 157 SAFETY GUIDELINES SAFETY GUIDELINES • Both the UHMS and DAN agree that “There can never be a flying after diving rule that is guaranteed to prevent decompression sickness completely. Rather, there can be a guideline that represents the best estimate for a conservative surface interval for the vast majority of divers.
  • Page 158 SAFETY GUIDELINES SAFETY GUIDELINES • To reduce the risk of developing decompression sickness after a single no decompression dive, current guidelines suggest waiting 12 hours prior to exposure to atmospheric pressures equivalent to 1,000 feet (305 meters) above sea level, or greater. •...
  • Page 159 SUMMARY SUMMARY • Remember that 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. • Remember also that the Dive Computer does not actually measure and test the composition of your body tissue and blood.
  • Page 160 • The following is an overview of additional Oceanic Dive Computer models. It is intended to provide you with an understanding of the basic differences between various types of Dive Computers.
  • Page 161 VEO 180 VEO 180 • The next model in the Veo line features the following feature enhancements: • Audible Alarm with Flashing Red LED Warning Light • SmartGlo Backlighting • OceanLog PC Interface with Detailed Dive Log and Settings Upload •...
  • Page 162 VEO 250 VEO 250 • In addition to the features of the Veo 180, the Veo 250 offers the following enhancements: • 2 Button Operation for ease of navigating display and set modes • On-Unit Simulator • Set Max Depth, Elapsed Dive Time and Tissue Loading Bar Graph Alarms...
  • Page 163 PRO PLUS 2 PRO PLUS 2 • In addition to the features of the Veo 250, the Pro Plus 2 offers the following enhancements: • Air Integration displays digital cylinder pressure • Dive Time Remaining Display incorporates Air Time Remaining and provides a 'real' number in minutes, considering Air Time Remaining, Nitrogen and...
  • Page 164 • In addition to the features of the Pro Plus 2, the VT3 offers the following enhancements: • Wireless Air Integration – compatible with up to 3 wireless transmitters • 3 Mix - Nitrox 21-100% • Buddy Pressure Check™ • Alpha Numeric Display •...
  • Page 165 ATOM 2.0 ATOM 2.0 • The ATOM 2.0 packs all of the features of the VT3 in a wrist watch that is equally at home when worn with a wetsuit or a three-piece suit. • Advanced Digital Watch functions including Alternate Time Zone, Stopwatch, Lap Timer, Daily Alarm, and...

This manual is also suitable for:

Veo 180Pro plus 2Atom 2.0Veo 250Vt 3

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