Oceanic ATOM Operating Manual
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Oceanic ATOM Operating Manual

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  • Page 2 Pay special attention to items marked with this Warning symbol.

  • Page 7: Limited Two-Year Warranty

    The programs within the ATOM 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. The ATOM dive computer model is based upon the latest research and experiments in decompression theory.

  • Page 8: Fcc Compliance

    • Connect the equipment to an outlet on a circuit different from that to which the receiver is con- nected. • Consult the dealer or an experienced radio/TV technician. Warning: Changes or modifications to this unit not expressly approved by Oceanic/2002 Design could void the user's authority to operate the equipment.
  • Page 9 WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. INTRODUCTION...

  • Page 10: Interactive Control Console

    It is extremely important that you read this Operating Manual in sequence and understand it completely before attempting to use the ATOM as a dive computer. It is equally important that you read the Oceanic Dive Computer Safety and Reference Manual (Doc. No. 12-2262) provided with your ATOM. It contains information that you must become familiar with prior to diving with your ATOM.

  • Page 11: Operating Mode Structure

    OPERATING MODE STRUCTURE Main Sequence Unless it is operating in Dive Computer mode, the ATOM will be (while at home) On in the default MAIN TIME (home time) mode (Fig. 1), like a Main Time Alternate Time standard Watch, until the Mode is changed.
  • Page 12 Watch Main Time. Checks are not made if the unit is WET. For a connection to be made, the Interface Cable is clipped onto the ATOM's Data Port and plugged into a PC USB Port. To establish the connection, the PC program must be running asking RUTHERE.

  • Page 13: Features And Displays

    WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. GENERAL FEATURES AND DISPLAYS...

  • Page 14: Symbols And Alpha Numeric Graphics

    86. AUDIBLE ALARM When warning situations activate the Audible Alarm, the ATOM will emit 1 beep per second for 10 seconds, or until the situation is corrected, or it is acknowledged by momentarily pressing and releasing the S button (<...
  • Page 15 Situations that will sound the Alarm include - • Watch Daily Alarm reaches time set (disabled during Dive Modes). • Watch Countdown Timer reaches 0:00. • Air Time Remaining at 5 minutes, then again at 0 minutes. • Air Time Remaining becomes less than No Deco and O2 Time Remaining for 1 minute. •...
  • Page 16 • Press the button again to activate as desired. NOTE: Extensive use of the Backlight reduces estimated Battery life. Also, the Backlight does not operate during a Low ATOM Battery Condition or when the ATOM is connected to a PC.

  • Page 17: Power Supply

    Transmitters check battery voltage when they are pressurized and will send a Low Battery signal to the Receiver in the ATOM when the voltage drops below the Warning level. The ATOM checks its battery voltage every 2 minutes during surface operation.
  • Page 18 To check the condition of the ATOM or a Transmitter's Battery, depress the S button for 2 seconds while in Dive Computer Surface Mode then release it. • As the button is depressed, the ATOM's Receiver will acti- vate. • 2 seconds later, the ATOM (Watch)'s Battery status will be displayed for 3 seconds (Fig.

  • Page 19: Watch Features

    Local Default Time until changed. While viewing any of the Watch Mode displays, pressing and holding the M button for 2 seconds or if no button is pressed for 2 minutes, the ATOM will revert to the Local Default Time screen.

  • Page 20: Set Main Time

    MAIN TIME Information includes: > Alarm icon - if the Daily Alarm is set On (Fig. 9a) > Day of the Week graphic MON (or TUE, WED, THU, FRI, SAT, SUN), or the graphic WET (if the unit is wet). >...
  • Page 21 NOTE: MAIN TIME must be selected as the Local Default Time in order to set the Time and Date. Sequence of Time/Date settings: Hour Format screen > Time screen (Hour > Minute) > Date screen (Year > Month > Day) Day of the Week is set automatically when the Date is set.
  • Page 22 • HINT - Pressing the A button repeatedly (< 2 seconds each time) will step through the Time/Date Settings, bypassing those that don't require setting. Set Hour (Fig. 11) The graphic Am or Pm will be displayed when setting Time in 12 Hour format.
  • Page 23 Displayed on the SET DATE screen will be the graphic YEAR, Month and Day (or Day and Month if set for metric), and the YEAR set point flashing. Set Year (Fig. 13) • Depressing and holding the S button while the YEAR Set Point is flashing will scroll through the Set Points in 1 year incre- ments at a rate of 4 per second from 2004 to 2049 (with leap year corrections).
  • Page 24 Set Day (Fig. 15) • Depressing and holding the S button while the DAY Set Point is flashing will scroll through the Set Points in one-day (01) increments at a rate of 4 per second from 1 to 31. • Pressing and releasing the A button momentarily (< 2 sec- onds) will save the Set Point and/or advance to the MAIN TIME screen.

  • Page 25: Set Alternate Time

    ALTERNATE TIME information includes: > Alarm icon - if the Daily Alarm is set On. > Lazy 8 symbol and Day of the Week graphic MON (or TUE, WED, THU, FRI, SAT, SUN), or WET (if the unit is wet). >...

  • Page 26: Countdown Timer

    Once the Differential is selected and saved, Alternate Time/Date values will be based upon the MAIN TIME Set Points. Set ALTERNATE TIME information includes (Fig. 17): > Lazy 8 symbol and graphic OFF, or the +/- numeric Hour Differential Set Point, flashing. •...
  • Page 27 Once set ON, a Countdown will run in the background until it counts down to 0:00, or it is set OFF, or a Dive is made at which time it will default to OFF and the value previously set. When a set Countdown Time reaches 0:00, the Audible Alarm will beep 10 times and the red LED warning light will flash.

  • Page 28: Set Countdown Timer

    SET COUNTDOWN TIMER Information includes (Fig. 19): > Graphics TIMR and SEt. > TIME symbol and HOUR Set Point (hr:) flashing. • Depressing and holding the S button while the HOUR Set Point is flashing will scroll through the Set Points in 1 hour increments at a rate of 4 per second from 0: to 23: (hr).
  • Page 29 CHRONOGRAPH (Stop Watch/Lap Timer) (Fig. 21) • Pressing and releasing the M button momentarily 3 times (< 2 seconds each) while the MAIN TIME screen is displayed will access the CHRONOGRAPH displaying the elapsed time if previously started or 0:00:00.00 (hr:min:sec.1/100th sec), flashing (Fig.

  • Page 30: Daily Alarm

    • Depressing and holding the A button for 2 seconds will stop the Timer and reset the Time to 0:00:00.00 (flashing). • Pressing and releasing the M button momentarily (< 2 sec- onds) will advance to DAILY ALARM. • Depressing and holding the M button for 2 seconds will revert to the Local Default Time screen.

  • Page 31: Set Daily Alarm

    • Upon being toggled to ON, the Alarm will be set to sound every day at the Time indicated. • Depressing both the A and S buttons simultaneously for 2 seconds will allow setting a new Time as indicated by the graphic SEt and the HOUR Set Point flashing.
  • Page 32 PC Settings Upload program included on the ATOM's Dive Log Explorer software CD. Responsible Prior to shipment from the factory, error of the ATOM's Main Time is determined and corrected.

  • Page 33: Dive Computer

    WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. DIVE COMPUTER FEATURES AND DISPLAYS...

  • Page 34: Bar Graph

    This is referred to as the Tissue Loading Bar Graph (TLBG). When the ATOM is set to operate in Nitrox mode, the Bar Graph will represent oxygen accumulation when the oxygen data screen (Alternate Display) is accessed temporarily.
  • Page 35 24 hour period. The ATOM will store oxygen accumulation calculations for up to 10 dives conducted during a 24 hour period. If the maximum...

  • Page 36: Alpha / Numeric Displays

    No Decompression times allowed. ALPHA / NUMERIC DISPLAYS Tank Pressure Display When the ATOM's Receiver is set ON and active, Tank Pressure from each active Transmitter that is properly linked will be dis- played when accessed (Fig. 28a). Values of pressure are displayed numerically from 0 PSI (BAR) up to 5,000 PSI (352 BAR) in increments of 5 PSI (.5 BAR).
  • Page 37 (Fig. 30c) is located in the middle row. Both displays are identi- fied by the symbol TIME. When the ATOM is operating in Dive Computer mode, Date is displayed only to identify dive data while it is viewed in the Log Mode (Fig.
  • Page 38 Temperature Display Ambient Temperature is displayed in Surface Mode (Fig. 32Aa) and in Log Mode, and can be viewed on a Secondary Display when accessed during dive modes (Fig. 32Ba). NOTE: Each display represents unique pieces of information. It is imperative that you under- stand the formats, ranges, and values of the information represented to avoid any possible misunderstanding that could result in error.
  • Page 39 WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. DIVE COMPUTER SURFACE SEQUENCE AND MODES...
  • Page 40 Once accessed by preesing the M button, DC SURFACE MODE (Fig. 33) will remain on display for 2 hours during which time the ATOM will enter Dive Mode upon descent below 4 feet (1.2 meters). • During the 2 hour period, if the M button is pressed to access...
  • Page 41 During the first 10 minutes after a dive, DC SURFACE MODE remains on display as the DEFAULT screen. Main Time can be viewed for 3 seconds during that period by pressing the M button for 2 seconds. When the 10 minute Surface Time has elapsed, the Local Default Time screen (Main Time or Alternate Time) will replace the DC Surface Mode display.
  • Page 42 SURFACE MODE - Button Operations: > Upper/Left - Mode (M) button S >> > Upper/Right - Select (S) button ATOM > Lower/Right - Light (L) button A >l > Lower/Left - Advance (A) button • Pressing the L button will activate the Backlight.

  • Page 43: System Status

    Status of the system's Batteries and Pressures of the Tanks in use. • If a Transmitter is not active and linked to the ATOM, the message NotAvAil (Not Available) will appear. • Each screen will be displayed for 3 seconds. ATOM Battery...

  • Page 44: Wet Contacts

    SEA (or LEV2 through LEV7) during Dive Surface Mode or Week Day (MON - SUN) during Main and Alternate Time Modes. The ATOM will continue checking for Depth, until a dive is made or it reverts to the Local Default Time screen after 2 hours.
  • Page 45 SET D > FO2 (GAS 1) > FO2 (GAS 2) > FO2 (GAS 3) > FO2 50% Default > Receiver > Digital Gauge > The ATOM reverts to the Default Settings when 24 hours elapse without a dive or after a dive.
  • Page 46 24 hours elapse after the last dive, or the FO2 50% DEFAULT is turned OFF in the Set FO2 50% DEFAULT ON/OFF MODE. When the FO2 50% DEFAULT is set OFF, the ATOM will remain set at the last FO2 GAS 1 Set Points for that series of repetitive dives.
  • Page 47 GAS 1 is set to AIR. Internally, the ATOM keeps track of the oxygen loading so that if FO2 for GAS 1 is subse- quently set for a numerical value, the oxygen loading for previous AIR dives will be ac- counted for in the next Nitrox dive (during that dive period and series of repetitive dives).
  • Page 48 SET FO2 GAS 1 information includes (Fig. 42/43): > Graphic GAS1 > Max Depth allowed for the PO2 Alarm Set (if 21 to 50%) > FO2 Set Point value, flashing > Symbols FO2 and NITROX (if set for a numerical value). •...
  • Page 49 SET FO2 GAS 2 information includes (Fig. 44/45): > Graphic GAS2 > Max Depth allowed for the PO2 Alarm Set (if 21 to 100%) > FO2 value, flashing > Symbols FO2 and NITROX (if set for a numerical value). • Depressing and holding the S button while the FO2 Set Point is flashing will scroll the Set Point from AIR to 21 through 100% in 1% increments, at a rate of 8 per second.
  • Page 50 SET FO2 GAS 3 information includes (Fig. 46/47): > Graphic GAS3 > Max Depth allowed for the PO2 Alarm Set (if 21 to 100%) > FO2 value, flashing > Symbols FO2 and NITROX (if set for a numerical value). • Depressing and holding the S button while the FO2 Set Point is flashing will scroll the Set Point from AIR to 21 through 100% in 1% increments, at a rate of 8 per second.
  • Page 51 SET FO2 50% DEFAULT information includes (Fig. 48): Refer to page 46 for a description of FO2 > Graphics DFLT and 50 50% DEFAULT. > Set Point graphic ON (or OFF), flashing. > Symbols FO2 and NITROX. • Pressing and releasing the S button (< 2 seconds) will toggle between ON and OFF.
  • Page 52 SET ATOM's RECEIVER information includes (Fig. 49): > Graphic RCVR > Set Point graphic ON (or OFF), flashing. • Pressing and releasing the S button (< 2 seconds) will toggle between ON and OFF. • Pressing and releasing the A button momentarily (< 2 sec- onds) will save the setting and/or advance to SET DIGITAL GAUGE with the Set Point flashing.
  • Page 53 SET DIGITAL GAUGE DIVE information includes (Fig. 50): > Graphic GAUG > Set Point graphic ON (or OFF), flashing. • Pressing and releasing the S button (< 2 seconds) will toggle between ON and OFF. • Pressing and releasing the A button momentarily (< 2 sec- onds) will save the setting and/or advance to the SET D screen.

  • Page 54: Set A Group (Alarms)

    SET A GROUP (ALARMS) Set A Sequence: SET A > Audible > Depth > EDT > TLBG > DTR > Turn Pressure > End Pressure > PO2 HINT: The SET A Group can be set/changed using the PC Settings Upload program as well as by using the buttons.
  • Page 55 SET AUDIBLE ALARM information includes (Fig. 52): > Graphic AUD > Set Point graphic ON (or OFF), flashing. • Pressing and releasing the S button (< 2 seconds) will toggle between ON and OFF. • Pressing and releasing the A button momentarily (< 2 sec- onds) will save the setting and/or advance to the SET DEPTH ALARM screen with the Set Point flashing.
  • Page 56 SET DEPTH ALARM information includes (Fig. 53): > Graphic DPTH > Symbols MAX and FT (or M) > Set Point graphic value, flashing. • Pressing and releasing the S button momentarily (< 2 sec- onds) will step through the Set Points from 30 to 330 feet (9 to 99 meters) in 10 foot (3 meter) increments at a rate of 1 Set Point per press of the button.
  • Page 57 SET ELAPSED DIVE TIME (EDT) ALARM Information includes (Fig. 54): > Graphic EDT > Symbols DIVE and TIME. > Set Point value, flashing. • Pressing and releasing the S button momentarily (< 2 seconds) will increase the Set Point from 0:10 to 3:00 (hours:minutes) in 5 minute (:05) increments.
  • Page 58 SET TISSUE LOADING BAR GRAPH (TLBG) ALARM Setting the TLBG Information includes (Fig. 55): Alarm to activate before it enters the > Graphic TLBG DECO is highly > TLBG Set Point (segments), flashing. recommended. • Pressing and releasing the S button momentarily (< 2 sec- onds) will decrease the Set Point from All 5 segments (Deco) to 1 in increments of 1 segment.
  • Page 59 SET DIVE TIME REMAINING (DTR) ALARM Whichever time (No Information includes (Fig. 56): Decompression, O2, or Air Time Remain- > Graphic DTR ing) decreases to the > Symbols TIME, NDC, O2, and AIR. Alarm Set Point will > Set Point value, flashing. activate the Alarm.
  • Page 60 SET TURN PRESSURE ALARM (for Transmitter 1 only) Information includes (Fig. 57A/B): > Graphic TURN > Set Point OFF or a numeric value, flashing. > Symbol PSI (or M) • Pressing and releasing the S button momentarily (< 2 sec- onds) will step through the Set Points from OFF to 1,000 to 3,000 PSI (69 to 205 BAR) in 250 PSI (17 BAR) increments.
  • Page 61 SET END PRESSURE ALARM information includes (Fig. 58): The END PRESSURE Alarm will activate > Graphic END when Pressure in the > Set Point numeric value, flashing. Tank (TMT 1, 2 , or 3) > Symbol PSI (or M) being used at the time decreases to the •...
  • Page 62 SET PO2 ALARM information includes (Fig. 59): Setting the PO2 Alarm to activate before > Graphic PO2 reaching the Max > Set Point value, flashing. allowed limit of 1.60 > Symbol MAX ATA is highly recom- mended. • Pressing and releasing the S button momentarily (< 2 sec- onds) will increase the Set Point from 1.20 (ATA) to 1.60 (ATA) in .10 (ATA) increments.

  • Page 63: Set U Group (Utilities)

    SET U GROUP (UTILITIES) Set U Sequence: SET U > Wet Activation > Units > Safety Stop > Conservative Factor > Backlight Duration > Sampling Rate > Transmitter 1 Code > Transmitter 2 Code > Transmitter 3 Code. HINT: The SET U Group can be set/changed using the PC Settings Upload program as well as by using the buttons.

  • Page 64: Set Wet Activation On/Off

    SET WET ACTIVATION ON/OFF Refer to page 44 for Information includes (Fig. 61): a description of the Wet Activation > Graphic WET feature. > Set Point graphic ON (or OFF) flashing. • Pressing and releasing the S button will toggle between ON and OFF.
  • Page 65 SET UNITS information includes (Fig. 62): > Graphic UNIT > Set Point symbols/graphics F, FT, and PSI (or C, M, and BAR), flashing. • Pressing and releasing the S button will toggle between Imperial (F, FT, PSI) and Metric (C, M, BAR). •...
  • Page 66 SET SAFETY STOP information includes (Fig. 63): Refer to page 100 > Graphic SAFE for a description of > Safety Stop Time Set Point, flashing. the No Decompres- > Symbols STOP and TIME. sion dive mode > Safety Stop Depth Set Point and symbol FT (or M). Safety Stop feature.
  • Page 67 SET CONSERVATIVE FACTOR information includes (Fig. 64): Use the Conservative Factor option to help > Graphic CONS reduce your expo- > Set Point ON (or OFF), flashing. sure to Decompres- > Symbols TIME and NDC. sion Sickness. • Pressing and releasing the S button (< 2 seconds) will toggle between ON and OFF.
  • Page 68 SET BACKLIGHT DURATION information includes (Fig. 65): The Backlight will not remain On for > Graphic GLOW the additional > Symbol TIME. Duration time set if > Set Point, flashing. the L button is held depressed longer • Pressing and releasing the S button momentarily (< 2 sec- than10 seconds.
  • Page 69 SET SAMPLING RATE information includes (Fig. 66): SAMPLING RATE is the frequency (time > Graphic SAMP or depth change) at > Symbol TIME (or FT/M). which data is > Set Point, flashing. sampled and stored in memory for • Pressing and releasing the S button momentarily (< 2 sec- subsequent down- onds) will step through the Set Points of 2, 15, 30, 60 (:XX load to the PC...
  • Page 70 SET TRANSMITTER 1 LINK CODE information includes (Fig. 67): > Graphics TID1, and ON (or OFF) flashing. > Set Point (numerical Link Code/transmitter's serial number). • Pressing and releasing the S button momentarily (< 2 seconds) will toggle between ON and OFF.
  • Page 71 • Pressing and releasing the S button momentarily and repeatedly (< 2 seconds each time) will increase the Third Digit from 0 to 9 in increments of 1. • Depressing and holding the S button will scroll through the Set Points at a rate of 4 per second.
  • Page 72 SET TRANSMITTER 2 LINK CODE information includes (Fig. 68): > Graphics TID2, and ON (or OFF) flashing. > Set Point (Link Code/transmitter's serial number). • Pressing and releasing the S button momentarily (< 2 seconds) will toggle between ON and OFF. •...
  • Page 73 • Pressing and releasing the S button momentarily and repeatedly (< 2 seconds each time) will increase the Third Digit from 0 to 9 in increments of 1. • Depressing and holding the S button will scroll through the Set Points at a rate of 4 per second.
  • Page 74 SET TRANSMITTER 3 LINK CODE information includes (Fig. 69): > Graphics TID3, and ON (or OFF) flashing. > Set Point (Link Code/transmitter's serial number). • Pressing and releasing the S button momentarily (< 2 seconds) will toggle between ON and OFF. •...
  • Page 75 • Pressing and releasing the S button momentarily and repeatedly (< 2 seconds each time) will increase the Third Digit from 0 to 9 in increments of 1. • Depressing and holding the S button will scroll through the Set Points at a rate of 4 per second.
  • Page 76 Information includes (Fig. 70): > Graphic SN > Factory programmed Serial Number of the ATOM. > Firmware revision number (e.g., graphic r1A). • Depressing the A and S buttons simultaneously for 2 seconds will revert to the Surface Mode screen.

  • Page 77: Plan Mode

    PLAN MODE Oceanic strongly recommends that you review the Pre Dive Planning Se- quence (PDPS) prior to every dive to help you plan your dive as required to avoid exceeding no decompression or oxygen exposure limits. This is especially important for repetitive dives when the PDPS indicates adjusted dive times that are available for the next dive, based on residual nitrogen or oxygen accumulation (which- ever is in control) following the last dive and surface interval.
  • Page 78 NOTE: When the Conservative Factor is set ON, No Decompression Dive times are reduced to the values of the next 3000 foot (915 meter) higher Altitude. Refer to the charts on pages 139/140. If FO2 for GAS1 is set for a numerical value (21 to 50%), the NITROX graphic and Maximum Operating Depth defined by the PO2 ALARM Set Point will be displayed.

  • Page 79: Fly Mode

    The Time to Fly counter begins counting down 10 minutes after surfacing from a dive from 23:50 to 0:00 (hrours:minutes). Two hours after a dive, the ATOM's operation reverts to the Watch Local Default Time screen (Main or Alternate, whichever one was selected as the Default screen) at which time the Time to Fly Countdown continues in the background.

  • Page 80: Sat Mode

    FLY MODE information includes (Fig. 72): > Alpha graphic FLY and symbol TIME. > Countdown Time (hours:minutes). > Battery icon (if a Low Battery Warning Condition exists), flashing if Too Low • Pressing and releasing the A button momentarily (< 2 sec- onds) will advance to SAT MODE.
  • Page 81 > In the event that Time to Desaturate still remains at the end of 24 hours, the unit is to shut Off as a Dive Computer. > Two hours after a dive, the ATOM's operation reverts to the Watch Mode TIME screen (Main or Alternate, whichever one was selected as the Default screen) at which time the Time to Desaturate Countdown continues in the background.

  • Page 82: Dive Log Mode

    DIVE LOG MODE LOG MODE displays information from the latest 24 dives sequentially in reverse order (the most recent first). LOG information is retained until deleted by another dive. Battery removal will not affect the LOG data stored for viewing. After exceeding 24 dives, the most recent Dive will be added and the oldest deleted.
  • Page 83 • Pressing and releasing the S button momentarily (< 2 sec- onds) while viewing a PREVIEW screen will display that dive’s second LOG screen (Nitrogen Data). If that was a Nitrox dive, pressing/releasing the S button again will display that dive’s third LOG screen (Oxygen Data). If in GAUGE MODE (Violated or User Selected), the Oxygen Data screen will not be displayed.
  • Page 84 LOG NITROGEN DATA information includes (Fig. 75): > Alpha graphic NO-D, DECO, GAUG, or VIOL. > TLBG with the maximum accumulation segment flashing, others fixed up to end-of-dive accumulation. All segments flashing for delayed and full violation. > Temperature (minimum recorded that dive) and graphic F (or C if metric).

  • Page 85: History Mode

    HISTORY MODE HISTORY Mode displays accumulative information for up to 9999 Dives, 9999 Dive Hours, and the Maximum Depth achieved. HISTORY information is retained indefinitely. Battery removal will not affect the HISTORY data stored for viewing. • 10 minutes after a Non-Violation Dive, pressing and releasing the A button momentarily and repeatedly 5 times (<...

  • Page 86: Overview Of Displayed Symbols And Icons

    OVERVIEW OF DISPLAYED SYMBOLS AND ICONS SYMBOLS MEANING MAX FT M Maximum Depth (Feet or Meters) FT M STOP TIME Stop Depth (Feet or Meters) and Time (hours:minutes) AIR TIME Air Time Remaining (hours:minutes) DIVE TIME Elapsed Dive Time (hours:minutes) DIVE Dive Number TOTAL ASCENT TIME...
  • Page 87 WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. OVERVIEW OF DIVE MODE...

  • Page 89: Link Interruption Underwater

    Transmitter. A coiled antenna inside the ATOM receives the signals when it is positioned within a zone parallel to or at a 45 degree angle to the Transmitters as shown on page 88 Figure 78.

  • Page 90: Dive Time Remaining

    An interruption of the Link may also occur while the ATOM is in an area within 3 to 4 feet (1 meter) of a running Dive Propulsion Vehicle. The Link will be restored within 4 seconds after the Vehicle is shut off or the ATOM is moved out of that area. When using a Strobe, a temporary interruption may occur shortly after the Strobe flashes.
  • Page 91 This is a feature of the Decompression Model that is the basis for Multi- level Diving, one of the most important advantages that Oceanic dive computers offer. The ATOM's algorithm is based upon Haldane’s theory using maximum allowable nitrogen levels developed by Merrill Spen- cer.
  • Page 92 For example, when a buddy starts breathing from your Octopus or you suddenly find yourself swimming against a strong current and begin breath- ing more rapidly, the ATOM will recognize the change and adjust the Air Time Remaining accordingly.
  • Page 93 You should immediately initiate a controlled Ascent while moni- toring your Tank Pressure. However, there is no reason to panic, the ATOM has allowed for the Air necessary for a safe Ascent including any emergency Decompression Stops required. Example: •...

  • Page 94: Variable Ascent Rate

    VARIABLE ASCENT RATE Alerts associated with Ascent Rate are based upon 2 sets of speeds which change at a reference depth of 60 feet (18 meters). WARNING: At depths greater than 60 feet (18 meters), Ascent Rates should not exceed 60 feet per minute (18 mpm).

  • Page 95: Elapsed Dive Time

    ELAPSED DIVE TIME The maximum duration that Elapsed Dive Time will be displayed is 9 hours and 59 minutes (9:59). In the event that the ATOM is at depth for a greater time, it will cease operation as a Dive Computer and revert to operation as a Watch, displaying the Main Time screen.

  • Page 96: Control Of Displays

    During Dive Modes, there is a Main (Default) Display of important information relevant to the specific mode that the ATOM is operating in (No Deco, Deco, Gauge, etc.). Alternate Displays can be accessed by pressing and releasing the A button to view addi- tional information.

  • Page 97: Dive Modes

    WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. DIVE MODES...

  • Page 98: No Decompression Dive Mode

    NO DECOMPRESSION DIVE MODE NOTE: During the When the Wet Activation feature is set On, the ATOM will enter time that an Alarm is the No Decompression Dive Mode any time you descend deeper sounding, Alternate, Secondary, and Gas than 4 feet (1.2 meters).
  • Page 99 No Deco Alternate Display #1 Information includes (Fig. 86) - • If the Reciver is set OFF, this display will be bypassed. > Tissue Loading Bar Graph > Transmitter Link icon and graphic TMT1 (or 2 or 3) > Air Time Remaining with symbols AIR and TIME •...
  • Page 100 No Deco Secondary Display information includes (Fig. 88) - > Day of the Week graphic (MON, TUE, etc.) > Temperature with icon and graphic F (or C) > Time of Day (hour:minute:second). This will be the Default Time selected (Main or Alternate). •...

  • Page 101: Decompression Dive Mode

    Note that the display showing Max Depth and Elapsed Dive Time will not be available while at the Safety Stop. DECOMPRESSION DIVE MODE The ATOM is designed to help you by providing a representation of how close you are to entering Decompression. Decompression Dive Mode activates when theoretical No Decom-...

  • Page 102: Managing Decompression Stops

    Upon entering Decompression Mode, the Audible Alarm will sound and the red LED Warning Light will flash for 10 seconds (unless set OFF), or until acknowledged. A message with the graphics DECO > STOP > xxFT will scroll at the top of the Main screen, each On for 2 seconds and Off for 4. •...
  • Page 103 The amount of decompression Credit Time that you receive is dependent on Depth, with slightly less Credit given the deeper you are below the Stop Depth indicated. WARNING: You should stay slightly deeper than the Required Stop Depth If a High PO2 indicated until the next shallower Stop Depth appears.
  • Page 104 Deco Alternate Display #1 information includes (Fig. 93) - • If the Reciver is set OFF, this display will be bypassed. > Tissue Loading Bar Graph (all segments) > Transmitter Link icon and graphic TMT1 (or 2 or 3) > Air Time Remaining with symbols AIR and TIME >...

  • Page 105: Conditional Violation Mode

    Deco Secondary Display information includes (Fig. 95) - > Day of the Week graphic (MON, TUE, etc.) > Temperature with icon and graphic F (or C) > Time of Day (hour:minute:second) This will be the Default Time selected (Main or Alternate). •...
  • Page 106 S button. If you descend below the required Decompression Ceiling before 5 minutes have elapsed, the ATOM will continue to function in Decompression Dive Mode. In this case, no off-gassing Credit will be given, and for each minute above the Ceiling 1 minutes of Penalty Time will be added to Required Stop Time.
  • Page 107 Delayed Violation Mode #2 (Fig. 98) The ATOM cannot calculate decompression times for Stop Depths much greater than 60 feet (18 meters) and offers no indication of how much time spent underwater would result in the need for a greater Stop Depth.
  • Page 108 This situation would be preceded by entering Delayed Violation Mode #2. The ATOM would then operate with limited functions in Violation Gauge Mode during the remainder of that dive and for 24 hours after surfacing. Gauge Mode turns the ATOM into a digital instrument without any decompression or oxygen monitoring functions.
  • Page 109 Time Remaining and Tank Pressure • Press/hold the A button (2 sec) to view Temperature/Time The ATOM will also enter an Immediate Violation Mode 5 minutes after reaching the surface from a dive in which a De- layed Violation occurred.
  • Page 110 The countdown timer that appears when you try to access Time to WARNING: Fly does not represent Time to Fly. It is only provided to inform you of the time remaining before normal ATOM Dive Computer If a High PO2 operation can resume with full features and functions.

  • Page 111: High Oxygen Accumulation

    If PO2 continues to increase, the value displayed will increase toward a maximum value of 5.00 ATA in increments of .01 ATA. High PO2 Alarm (Fig. 103) When PO2 reaches a value of 1.60 ATA, or the PO2 Alarm Set Point (a user setting), the red LED warning light will flash, the Audible Alarm will sound (unless set OFF), and the current PO2 value, graphic PO2, and UP Arrow will flash as a warning until...
  • Page 112 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 (300 OTU), Oxygen Dive Time Remaining becomes zero (0:00) and the full O2 Bar Graph will be displayed flashing (Fig.

  • Page 113: User Set Digital Gauge Mode

    USER SET DIGITAL GAUGE MODE When Digital Gauge Mode is set for ON, the ATOM will operate as a Digital Depth Gauge/Timer without performing nitrogen and oxygen calculations. Main (Default) Display information includes (Fig. 105) - > Transmitter Link icon >...

  • Page 114: Summary Of Warning And Alarm Messages

    SUMMARY OF WARNING AND ALARM MESSAGES MESSAGE MEANING VIEW > AIR Air Time Remaining is less than No Deco and O2 times. DECO > STOP > xxFT (M) Entry into Decompression Mode. DOWN > TO > xxFT (M) Above a Required Decompression Stop Depth. DECO >...

  • Page 115: Switching Gas Mixes

    WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. SWITCHING GAS MIXES...
  • Page 116 Alarm is sounding. Gas Changeover Alarm If a Gas is being used that the ATOM is not set for (i.e., the diver starts breathing from another Tank and doesn't switch the ATOM to the new Gas within 60 seconds), the Audible Alarm will sound, the red LED will flash as a warning, and the message SWCH >...
  • Page 117 Display while in Dive modes will access the GAS 1 Switch Preview Display. • The ATOM will revert to the Main Display after 10 seconds of no M button action. NOTE: When Switching to a Gas (FO2) associated with a Tank that does not have an active Transmitter, the graphic ANALOG will be displayed.
  • Page 118 GAS 1 SWITCH PREVIEW DISPLAY Information includes (Fig. 108) - > Transmitter Link icon (if the Transmitter is active) > Bar Graph, representing Nitrogen Loading. > Alpha graphic GAS1 > Alpha graphic ANALOG, if TMT1 is not available > FO2 value Set Point for Gas 1 and the symbol FO2 >...
  • Page 119 • Depressing the M button for 2 seconds while viewing the GAS 2 Switch Preview Display will manually Switch the ATOM from GAS 1 to GAS 2 and the Receiver from Transmit- ter 1 to Transmitter 2 (if active). • When the switch is made, the Main Display will represent GAS 2.
  • Page 120 • Depressing the M button for 2 seconds while viewing the GAS 3 Switch Preview display will manually Switch the ATOM from GAS 2 to GAS 3 and the Receiver from Transmit- ter 2 to Transmitter 3 (if active). • When the switch is made, the Main Display will then repre- sent GAS 3.

  • Page 121: Post Dive Modes

    WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. POST DIVE MODES...

  • Page 122: Post Dive Surface Mode

    POST DIVE SURFACE MODE When you ascend to 4 feet (1.2 meters) or less, the ATOM will enter Surface Mode and begin counting your Surface Interval. TRANSITION PERIOD If you descend during the first 10 minutes after surfacing (referred to as the Transition Period), time underwater will be considered a continuation of that dive.

  • Page 123: After The Transition Period

    To view that dive's Log during the Transition Period - • Press and release the A button (< 2 seconds) to access the Preview screen (Fig. 115). • Press the S button to view the Nitrogen data screen. See page 84. •...
  • Page 124 To access Plan Mode (refer to page 77) - • Press the A button 1 time (while in Surface Mode). The Planning Sequence now displays adjusted No Decompression Limits based on residual nitrogen and accumulated oxygen calculated to be remaining from the previous dives. To access the Time to Fly Countdown (refer to page 79) - •...

  • Page 125: Uploading Settings And Downloading Data

    UPLOADING SETTINGS AND DOWNLOADING DATA The ATOM is configured with a Data Port located on the back of the left side that enables it to be connected to a PC through a USB port using the special Interface Cable supplied.
  • Page 126 ATOM housing and a USB Port of the PC. Prior to attempting to Download data from your ATOM, refer to the instructions provided in the User Manual that is incorporated into the CD for the PC Interface package.
  • Page 127 WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. REFERENCE...

  • Page 128: Care And Cleaning

    Instrument Lens Protector. Small scratches will naturally disappear underwater. • Soak and rinse the ATOM in fresh water at the end of each day of diving, and check to ensure that the areas around the Low Pressure (Depth) Sensor (Fig. 117a), PC Interface Data Port (Fig.
  • Page 129 The costs of annual inspections are not covered under the terms of the 2 year limited warranty. To Obtain Service: Take your ATOM system to an Authorized Oceanic Dealer or send it to the nearest Oceanic Regional Distributor Facility (page 151). To return your ATOM system to Oceanic: •...

  • Page 130: Battery Replacement

    Authorized Regional Distributor. Hot Swap If the new Battery can be inserted into the ATOM within 8 seconds after the old one is removed (referred to as a Hot Swap), settings and nitrogen and oxygen calculations for repetitive dives will be retained.
  • Page 131 CAUTION: Damage due to improper Battery replacement is not covered by the product's limited 2 year warranty. ATOM (Watch) Battery Removal • Locate the Battery Compartment on the back of the unit. • Rotate the Battery Hatch clockwise 10 degrees using the special Battery Hatch tool provided (Fig.
  • Page 132 WARNING: If damage or corrosion is found, return your ATOM system to an Authorized Oceanic Dealer, and DO NOT attempt to use it until it has received factory prescribed service. • Remove the Battery Hatch O-ring(s) and inspect them for any signs of deterioration or deformity.
  • Page 133 • Closely examine the inside of the Battery Compartment(s) for any signs of corrosion indicating entrance of moisture into the unit. • If corrosion is found, return the ATOM system to an Autho- rized Oceanic Dealer, and DO NOT attempt to use it until it has received factory service.
  • Page 134 Battery Hatch. Ensure that it is evenly seated (Fig. 122). NOTE: The O-ring must be a genuine Oceanic part that can be purchased from an Authorized Oceanic Dealer. Use of any other O-ring will void the warranty.
  • Page 135 Cap into the Groove at the Base of the Threads (Fig. 124). NOTE: The O-ring must be a genuine Oceanic part that can be purchased from an Authorized Oceanic Dealer. Use of any other O-ring will void the warranty.
  • Page 136 • Press the S button for 2 seconds to check the Status screens. • If any portions of the display are missing or appear dim, or if a Low Battery Condition is indicated, return your ATOM to an Authorized Oceanic Dealer for a complete evaluation before attempting to use it.

  • Page 137: Transmitter Compatibility With Nitrox

    Regulator Assembly to an Authorized Oceanic dealer for inspection and service. TRANSMITTER COMPATIBILITY WITH NITROX When packaged and shipped from the factory, Oceanic ATOM Transmitters are rated for use with compressed Air and/or nitrogen-oxygen (Nitrox) breathing gas mixtures containing up to...

  • Page 138: Altitude Sensing And Adjustment

    1 foot (30 cm) of each other to record that Ambient Pressure as the current ALTITUDE. The Mathematical Model in the ATOM accounts for the reduced No Decompression dive Time available based on National Oceanic and Atmospheric Administration (NOAA) guidelines.
  • Page 139 14,000 feet (4,270 meters). If the Conservative Factor is set ON while at Sea Level, calculations are based upon an Altitude of 3,000 feet. The ATOM will not function as a Dive Computer above 14,000 feet (4,270 meters). IMPERIAL NO DECOMPRESSION LIMITS (HOURS:MINUTES) AT ALTITUDE...
  • Page 140 METRIC NO DECOMPRESSION LIMITS (HOURS:MINUTES) AT ALTITUDE Altitude 611` 916` 1221` 1526` 1831` 2136` 2441` 2746` 3051` 3356` 3661` 3966` (meters) 610` 915` 1220` 1525` 1830` 2135` 2440` 2745` 3050` 3355` 3660` 3965` 4270` Depth (meters) 4:43 3:51 3:37 3:24 3:10 2:58 2:48...

  • Page 141: Specifications

    WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. SPECIFICATIONS...
  • Page 142 SPECIFICATIONS...
  • Page 143 SPECIFICATIONS (CONTINUED)
  • Page 144 SPECIFICATIONS (CONTINUED)
  • Page 145 SPECIFICATIONS (CONTINUED)
  • Page 146 SPECIFICATIONS (CONTINUED)
  • Page 147 SPECIFICATIONS (CONTINUED)
  • Page 148 OXYGEN EXPOSURE LIMITS (from NOAA Diving Manual) Maximum Duration for Maximum Total Duration, Single Exposure 24 Hour Day (ATA) (Min) (Hr) (Min) (Hr) 0.60 12.0 12.0 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60...
  • Page 149 WARNING: Prior to diving with the ATOM, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information. RECORDS...

  • Page 150: Inspection / Service Record

    ATOM Serial Number: _________________________________ Transmitter #1 Serial Number: _________________________________ Transmitter #2 Serial Number: _________________________________ Transmitter #3 Serial Number: _________________________________ Date of Purchase: ____________ Purchased from: __________________________ Below to be filled in by an Authorized Oceanic Dealer: Date Service Performed Dealer / Technician...

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