R O ATMOS ELITE DIVE COMPUTER OWNER'S GUIDE
LIMITED TWO-YEAR WARRANTY For details, refer to the Product Warranty Registration Card provided. COPYRIGHT NOTICE This owners 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 AERIS / 2002 Design. Atmos Elite Owner's Guide, Doc. No. 12-7156 © 2002 Design 2003 San Leandro, Ca.
CONTENTS WARRANTY ................................................................................................................................................................. 2 NOTICES ..................................................................................................................................................................... 2 DECOMPRESSION MODEL ......................................................................................................................................
CONTENTS (continued) SET MODES .............................................................................................................................................................. 30 ENTERING SETTINGS -SET MODE #1 ............................................................................................................... 31 ENTERING SETTINGS -SET MODE #2 ............................................................................................................... 35 PRE DIVE PLAN MODE .......
CONTENTS (continued) CARE, MAINTENANCE, AND SERVICE ......................................................................... 97 CARE AND CLEANING ............................................................................................................................................. 98 INSPECTIONS AND SERVICE ................................................................................................................................. 99 BATTERY REPLACEMENT ...........................................
WARNINGS AND SAFETY RECOMMENDATIONS The Atmos Elite is not intended for use by military or commercial divers. The Atmos Elite 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 must not be used by untrained persons who may not have knowledge of the potential risks and hazards of scuba diving, and diving with nitrox.
FCC ID: MH8A FCC Compliance: This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following 2 conditions: 1.) this equipment may not cause harmful interference, and 2.) this equipment must accept any interference received, including interference that may cause undesired operation.
LCD LAYOUT Components: a. Nitrogen Loading Bar Graph b. Oxygen Accumulation Bar Graph c. Variable Ascent Rate Indicator d. Select (Side) Button e. Advance (Front) Button f. Red Alarm LED g. Graphic - Demo Mode h. Icon - Temperature i. Icon - O2 j. Icon - Air Time Remaining k. Icon - Set Alarm l. Icon - Log Mode m. Graphic - Depth n. Icon - Operating Mode o. Graphic - Ascent Too Fast p. Icon - Safety Stop q. Icon - Time r. Icon - Signal/Link s. Graphic - Pressure t.
FEATURES and DISPLAYS 9
WELCOME TO AERIS ! AND THANK YOU FOR CHOOSING THE ATMOS ELITE ! Your Atmos Elite presents the information that you need before, during, and after your air (or nitrox) dives using a combination of easy to read displays and identification icons. It can also be set to operate simply as a digital depth gauge/timer.
CONTROL BUTTONS The two Control Buttons allow you to select display options, access specific information when you want to see it, activate the Unit, Link the Transmitter, and operate the Backlight. The Front button is named Advance (Fig. 1a) and the Side button Select (Fig. 1b). BAR GRAPHS Nitrogen Bar Graph The Nitrogen Bar Graph (Fig. 1c) represents tissue loading of nitrogen, showing your relative no decompression or decompression status.
a b Fig. 2 - O2BG and VARI Deeper than 60 feet (18 m) Segments Ascent Rate = Displayed FPM MPM 0 0-20 0-6 1 21-30 6.5-9 2 31-40 9.5-12 3 41-50 12.5-15 4 51-60 15.5-18 5 >60 >18 60 feet (18 m) & Shallower Segments Ascent Rate = Displayed FPM MPM 0 0-10 0-3 1 11-15 3.5-4.5 2 16-20 5-6 3 21-25 6.5-7.5 4 26-30 8-9 5 >30 >9 Variable Ascent Rate Indicator 12 Oxygen Accumulation Bar Graph (O2BG) The O2 Bar Graph (Fig.
INFORMATIONAL DISPLAYS 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. Tank Pressure Display (Fig. 3a) Tank Pressure is displayed when the Transmitter is connected to a pressurized Tank, and the Display Module is in an active operating Mode and properly Linked.
Time and Date Displays Time displays are shown in hour:minute format (i.e., 1:22 represents 1 hour and 22 minutes, not 122 minutes!). The colon that separates hours and minutes blinks once per second when the display is indicating real time (e.g., Elapsed Dive Time), and is solid (non-blinking) when times are calculated projections (e.g., Time to Fly). Due to the importance of the information it presents, the Main Time display is configured with the largest segments of the LCD in the upper window (Fig. 4a).
NOTE: The Informational Displays are described in detail as the various operating modes they appear in are presented throughout this manual. AUDIBLE ALARM When warning situations activate the Alarm, the unit will emit a continuous beeping tone for 10 seconds, or until the situation is corrected, or it is acknowledged by pressing the Advance (Front) button for 2 seconds.
During the following situations, the 10 second continuous tone will be followed by a 5 second steady beep that will not turn off when acknowledged, even if it was user Set OFF Ascending above a required Decompression stop depth for more > 5 min. (Delayed Violation). Decompression requires a ceiling stop depth => 70 FT (18 M). Being on the surface for 5 minutes after a Conditional Violation (Permanent Violation).
POWER SUPPLY The Transmitter utilizes (1) - 3 volt CR2 Lithium Battery and the Display Module utilizes (1) - 3 volt CR2450 Lithium Battery. They should provide from 50 dive hours of operation if you conduct (1) 1 hour dive each time the unit is activated, to over 150 dive hours of operation if you conduct (2) or more dives each time the unit is activated. SIGNAL PSI Low Battery Condition Voltage level is checked upon activation and every 10 minutes during operation. a Fig.
If the button is not pressed to activate the unit prior to a dive, and a Low Battery Condition exists, the Low Battery icon will appear flashing as a warning upon descent past 4 feet (1.2 meters). No other information will be displayed and the unit will not enter Dive Mode.
FO2 MODE After Activation, the Atmos Elite 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 (numerical value between 21 and 50 %). Setting FO2 is described on Page 31. When set with an FO2 value of 'Air' (Fig. 9), the Atmos Elite will perform calculations the same as if FO2 were set for 21% oxygen, internally accounting for oxygen loading for any subsequent Nitrox dives.
WARNING: The percentage of oxygen (FO2) in the Nitrox mix being used must be set 'before each' Nitrox dive, unless the FO2 50% Default feature has been turned OFF. Fig. 11 - FO2 Default ON FO2 50% DEFAULT If the Default is set to ON and FO2 is set to a value 'greater than 21%', the FO2 set point value will automatically revert to 50% 10 minutes after that dive (Fig. 11). The Maximum Depth that can be achieved with a PO2 of 1.60 ATA will also be displayed.
DIVE TIME REMAINING One of the most important pieces of information on AERIS dive computers is the 'Dive Time Remaining numeric display'. The Atmos Elite constantly monitors No Decompression status, Oxygen Accumulation, and Breathing Gas Consumption Rate. The Dive Time Remaining* display will indicate the time that is more critical for you at that particular moment (i.e.; whichever time is the least amount available).
The no decompression algorithm is based upon Haldanes theory using maximum allowable nitrogen levels developed by Merrill Spencer. Repetitive diving control is based upon experiments designed and conducted by Dr. Ray Rogers and Dr. Michael Powell in 1987. Diving Science and Technology® (DSAT), a corporate affiliate of PADI®, commissioned these experiments.
Air Consumption and Depth are continuously monitored and Air Time Remaining reflects any change in circumstances. For example, when a buddy starts breathing from your Octopus or you suddenly find yourself swimming against a strong current and begin breathing more rapidly, the Atmos Elite will recognize the change and adjust the Air Time Remaining accordingly.
WARNINGS AND SAFETY RECOMMENDATIONS It should not be considered that the capabilities built into the Atmos Elite provide an implied approval or consent from AERIS for individuals to exceed the defined limits for recreational diving, as agreed on by all internationally recognized training agencies. The oxygen features of the Atmos Elite are intended for use by recreational divers trained for Nitrox diving by an instructor certified by a recognized training agency to teach diving with Nitrox.
WARNING: During Activation and Diagnostics, if any display or function varies from the information presented here, return the A tmos Elite to your Authorized AERIS Dealer for inspection.
PRESSURE TRANSMITTER Before you dive with the Atmos Elite, you will need to become familiar with the interactive features and select desired settings. The Transmitter must be installed into the High Pressure port of your Regulator First Stage, facing to one side (Fig. 16). AERIS strongly recommends that installation be performed by an Authorized AERIS Dealer at the time of purchase. Instructions are provided on Page 106.
ACTIVATION Before activating the Atmos Elite, the Regulator containing the Transmitter must be connected to a Tank and pressurized by slowly opening the Valve. Tank Pressure of 50 PSI (3 BAR) is required for the Transmitter to activate and send a signal. To Activate the Atmos Elite Position the display Module within 3 feet (1 meter) of the Transmitter (Fig. 17), holding it in this location during activation. Fig. 17 - Positioning during Activation Press and release the Advance (Front) button.
During the Diagnostic check, Battery voltage of both the Display Module and Transmitter are verified to determine there is sufficient voltage to maintain proper operation. If Display Module values are acceptable, the unit will enter Surface Mode. If the level of voltage is not acceptable, the unit will shut down in 5 seconds. If there is not sufficient voltage in the Transmitter, the Link icon and a Pressure value of 000 PSI (BAR) will flash (Fig. 19).
Backup Activation (only functional if the Water Activation feature is set ON) As a backup, the Atmos Elite will also automatically activate by water contact. This is accomplished by bridging the gap between contacts located on the button stems and download data port. The H2O graphic that will be displayed as an indication is described later. If the Water Activation feature (a user setting) is set OFF, the Atmos Elite will only activate by push button and only if shallower than 4 feet (1.2 meters) depth.
WARNING: If a Low Battery condition is displayed after diagnostics (icon flashing), DO NOT dive with the Atmos Elite until the Battery is changed. While in the Surface Mode you can access various other Modes that are described in detail throughout this manual.
Set Mode Access Timing While in Surface Mode, press Both buttons simultaneously and hold after 2 seconds, SET: 1 appears (Fig. 23) after 4 seconds, SET: 2 appears (Fig. 24) Access is gained to Set Modes by releasing the buttons during the 2 second window in which SET: 1 or SET: 2 appears, then pressing the Advance (Front) button. Fig. 23 - Set Mode 1 If the buttons are held longer and SET 1 and 2 are both bypassed, the unit will go to Simulator Mode which is described on page 71.
MAX DEPTH Press and release the Select (Side) button repeatedly to increase the FO2 value 1% per press from 21 to 50%, then display 'Air' again; - or - Press and hold the Select (Side) button to scroll directly to 32%, then press/hold again to scroll to 50% and back to Air, release at desired value. FT For each FO2 value that appears, the Maximum Depth that can be achieved for a PO2 of 1.60 ATA or the PO2 Alarm set point is displayed (Fig. 26). If FO2 is set for Air, Depth is not displayed. Fig.
Press and release the Select (Side) button until the desired Alarm value appears, or press and hold to scroll through the set points. Press the Advance (Front) button to accept the Depth Alarm setting and advance to Set Elapsed Dive Time Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode. The unit reverts to Surface Mode after 2 minutes if neither button is pressed.
NOTE: For more information regarding PC Interface, refer to page 88 of this manual and to documents provided with the download product. Press the Advance (Front) button to accept the setting and advance to PC Interface, or press and hold Both buttons for 2 seconds to revert to Surface Mode. The unit reverts to Surface Mode after 2 minutes if neither button is pressed.
ENTERING SETTINGS -SET MODE #2 TO SET - UNITS OF MEASURE (while in the Surface Mode) Factory set for Imperial, Units of Measure can also be set for Metric. Press Both buttons simultaneously, release when SET: 2 appears. Press and release the Advance (Front) button, the Units screen appears with the graphics FT (or M), and the Temperature icon and letter F (or C), and PSI (or BAR) flashing (Fig. 30).
TO SET - HOUR FORMAT (while in the Surface Mode) Factory set for 12 Hour (12: AM to 11: PM), the Format can also be set for 24 Hour (0: to 24: hours). Press Both buttons simultaneously, release when SET: 2 appears. Press and release the Advance (Front) button, the Units screen appears with the set point flashing. Press the Advance (Front) button 1 more time. The graphic Hour appears with 12 (or 24) flashing (Fig. 31).
TO SET - TIME OF DAY (while in the Surface Mode) Factory set for factory local time, the Time can be set to values between 01:00 to 12:59 (AM/PM) or 0:00 to 23:59 (24 Hr Format). Press Both buttons simultaneously, release when SET: 2 appears. Press and release the Advance (Front) button, the Units screen appears with the set point flashing. Press the Advance (Front) button 2 more times. The Time of Day appears with the Hour value flashing (Fig. 32).
TO SET - DATE (while in the Surface Mode) Factory set for the factory local Date, the Date can be set to values between 01 - 01 2003 and 12 - 31 2040. After having set and accepted the Time of Day, the Date appears with the graphic dAY, and Year value flashing (Fig. 33). Press and release the Select (Side) button to advance the Year value in increments of one Year, or press and hold to scroll. Press the Advance (Front) button to accept the Year setting. The Month value flashes.
TO SET - AUDIBLE ALARM (while in the Surface Mode) Factory set for ON, the Audible Alarm can be also be set to OFF. This setting also applies to the LED Warning Indicator that is synchronized with the Audible Alarm. When set OFF, the Alarm will not sound during the conditions described on page 15. Press Both buttons simultaneously, release when SET: 2 appears. Press and release the Advance (Front) button, the Units screen appears with the set point flashing.
TO SET - MAX NITROGEN BAR GRAPH ALARM (while in the Surface Mode) Factory set for DECO (all 8 segments), the Maximum Nitrogen Bar Graph (NiBG) Alarm can be set to values between DECO (8 segments) and 1 segment. Press Both buttons simultaneously, release when SET: 2 appears. Press and release the Advance (Front) button, the Units screen appears with the set point flashing. Press the Advance (Front) button 8 more times.
TO SET - TURN PRESSURE ALARM (while in the Surface Mode) Factory set for 00 PSI/BAR (disabled), the Turn Pressure Alarm can be set to values between 1000 and 3000 PSI (69 to 205 BAR) in increments of 250 PSI (17 BAR). Press Both buttons simultaneously, release when SET: 2 appears. Press and release the Advance (Front) button, the Units screen appears with the set point flashing. Press the Advance (Front) button 9 more times.
TO SET - END PRESSURE ALARM (while in the Surface Mode) Factory set for 00 PSI/BAR (disabled), the End Pressure Alarm can be set to values between 300 and 1500 PSI (20 to 104 BAR) in increments of 100 PSI (7 BAR). Press Both buttons simultaneously, release when SET: 2 appears (4 seconds). Press and release the Advance (Front) button, the Units screen appears with the set point flashing. Press the Advance (Front) button 10 more times.
TO SET - DIVE TIME REMAINING ALARM (while in the Surface Mode) Factory set for 0:00 (minutes), the Dive Time Remaining Alarm can be set to values between 0:00 and 0:20 (minutes) in increments of 1 minute. Press Both buttons simultaneously, release when SET: 2 appears. Press and release the Advance (Front) button, the Units screen appears with the set point flashing. Press the Advance (Front) button 11 more times.
TO SET - MAXIMUM PO2 ALARM (while in the Surface Mode) Factory set for 1.60 (ATA), the Maximum PO2 Alarm can be set to values between 1.20 and 1.60 (ATA) in increments of .10 (ATA). Press Both buttons simultaneously, release when SET: 2 appears. Press and release the Advance (Front) button, the Units screen appears with the set point flashing. Press the Advance (Front) button 12 more times. The graphics PO2 and MAX, and Alarm icon appear with the PO2 value flashing (Fig. 39).
TO SET - FO2 50% DEFAULT ON/OFF (while in the Surface Mode) Factory set ON, the FO2 50% Default feature can be set to OFF. The effects of this feature being set ON or OFF are described on page 20. Press Both buttons simultaneously, release when SET: 2 appears. Press and release the Advance (Front) button, the Units screen appears with the set point flashing. Press the Advance (Front) button 13 more times. The graphics FO2 and 50 appear with the ON (or OFF) flashing (Fig. 40).
TO SET - BACKLIGHT DURATION (while in the Surface Mode) Factory set for 7 (seconds), the Backlight Duration can be set to values of 0 (button time only), 3, or 7 seconds. This is the length of time the Backlight will stay on after the button is released. Press Both buttons simultaneously, release when SET: 2 appears. Press and release the Advance (Front) button, the Units screen appears with the set point flashing. Press the Advance (Front) button 14 more times.
TO SET - SAMPLING RATE (while in the Surface Mode) Factory set for 15 (seconds), the Sampling Rate can be set to values of 2, 15, 30, or 60 (seconds), or 2, 5, 10 feet (.5, 1.5, 3 meters). Sampling Rate is the interval at which data samples are recorded during a dive for subsequent download to the PC program. This setting has no effect on displayed data or data in the unit's Log. Press Both buttons simultaneously, release when SET: 2 appears.
TO SET - DIGITAL GAUGE MODE ON/OFF (while in the Surface Mode) Factory set OFF, User Set Digital Gauge Mode can also be set ON. This feature is also described on page 67. NOTE: Once a dive is made with this feature set ON, the setting will be locked ON for 24 hours after the dive. Set Digital Gauge Mode will not appear as a selection for 24 hours after the dive. Press Both buttons simultaneously, release when SET: 2 appears.
TO SET - WATER ACTIVATION (while in the Surface Mode) Factory set ON, this feature can also be set OFF (disabled). When set ON, the Atmos Elite will automatically Activate and enter Dive Mode upon immersion in water and descent to 5 feet (1.5 meters). WARNING: If the Water Activation feature is set OFF, the Atmos Elite must be manually (push button) activated prior to commencing a dive. Press Both buttons simultaneously, release when SET: 2 appears.
TO SET - LINK CODE (while in the Surface Mode) Factory set for ON and the Serial Number of the Transmitter shipped with the Display Module, the 6 digit Code can be set for OFF or numbers ranging from 000000 to 999999. When set OFF, the Display Module's receiver is disabled and no displays or calculations relating to Pressure are provided. Fig. 45 - Set Link Code OFF Fig. 46 - Set Link Code ON 50 Press Both buttons simultaneously, release when SET: 2 appears (4 seconds).
Setting Link Code (continued) Press and release the Select (Side) button to change the Second digit. Press the Advance (Front) button to accept the Second digit. The Third digit begins to flash. Press and release the Select (Side) button to change the Third digit. Press the Advance (Front) button to accept the Third digit. The Forth digit begins to flash. Press and release the Select (Side) button to change the Fourth digit. Press the Advance (Front) button to accept the Fourth digit.
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.
PRE DIVE PLAN MODE 53
DIVE PLANNER WARNING: The available dive times provided by the Dive Planner are only predictions. 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.
No decompression times 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. Depths greater than the maximum depth that can be achieved with a PO2 of 1.60 ATA will not be displayed.
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 feature is set OFF (a user setting). The Dive Planner 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.
DIVE MODES 57
Poor Reception Distance (greater than 4 feet/1.2 meters) Poor Reception Area Best Reception Area Poor Reception Area Poor Reception Area Fig.
POSITIONING OF THE DISPLAY MODULE The Transmitter emits a low frequency signal that radiates outward in a semicircular pattern that is parallel to the length dimension of the Transmitter. A coiled antenna inside the Display Module receives the signal when it is positioned within a zone parallel to or at a 45 degree angle to the Transmitter as shown on page 58 Fig. 49.
An interruption of the Link may also occur while the Display Module 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 Display Module is moved out of that area. When using a Strobe, a temporary interruption may occur shortly after the Strobe flashes. The Link will be restored within 4 seconds. DIVE MODE BAR GRAPHS As your depth and elapsed dive time increase, the Nitrogen Bar Graph (Fig.
CONTROL OF DISPLAYS During No Decompression conditions, various displays of information (up to 3) are available. Each provides Depth, Dive Time Remaining, and additional information. The intent of this feature is to give the diver control of what information is on the display at any given time during the dive. The diver can change from one display to another as often as desired by pressing the Advance (Front) button, otherwise it does not change.
NO DECOMPRESSION DIVE MODE The Atmos Elite will enter the No Decompression Dive Mode when you descend deeper than 4 feet (1.2 meters). FEET MAX DEPTH FT SIGNAL NITROX PSI Fig. 52 - No Deco Main #1 No Deco Dive Mode - Main Display #1 (Fig.
No Deco Dive Mode - Main Display #3 (Fig. 54) Displayed from top to bottom will be Current Depth (and graphic FEET or M), Dive Time Remaining (and Mode icon), current value of PO2 and graphic PO2, graphic NITROX, Tank Pressure (and graphic PSI or BAR, and Link/Signal icon), and Bar Graphs. press/release the Advance (Front) button to view Main Display 1. press and hold the Advance (Front) button for 2 seconds to view the Secondary Display (Air Time Remaining). No Deco Dive Mode - Secondary Display (Fig.
No Deco Dive Mode - SAFETY STOP (Fig. 56) Upon ascending to 20 feet (6 meters) on any No Decompression dive in which Depth exceeded 30 feet (9 meters), a short beep will be emitted and a Safety Stop at 15 feet (4.5 meters) will appear on the display with a 3 minute countdown timer that counts down from 3:00 to :00 (min:sec). The Safety Stop will be displayed until the countdown times out, or the diver descends below 30 feet (10 meters), or the diver surfaces.
DECOMPRESSION DIVE MODE The Atmos Elite is designed to help you by providing a representation of how close you are to entering Decompression. Decompression Dive Mode activates when theoretical No Decompression Time/ Depth Limits are exceeded. Entry into Decompression Dive Mode (Fig. 57) Upon entering Decompression Mode, the Audible Alarm will sound and the red LED Warning Indicator will flash for 10 seconds (unless set OFF), or until acknowledged.
a b FEET FT SIGNAL NITROX PSI Fig. 58 -Deco Stop Main FT SIGNAL NITROX Deco Dive Mode - Main (Default) Display (Fig. 58) Displayed will be Current Depth, Total Ascent Time (and Mode icon), required decompression Stop Depth and Time, both Arrows and the Deco Bar, Tank Pressure, and Bar Graphs. press/release the Advance (Front) button to view Alt Display 1. press the Advance (Front) for 2 seconds to view the Secondary Display (Air Time Remaining).
Deco Dive Mode - Alternate Display #2 (Fig. 60) Displayed will be Current Depth, Total Ascent Time, PO2 value (and graphic PO2), Tank Pressure, and Bar Graphs. FEET press the Advance (Front) for 2 seconds to view the Secondary Display (Air Time Remaining). SIGNAL NITROX Deco Dive Mode - Secondary Display (Fig. 61) To view, press the Front (Advance) button for 2 seconds while viewing any of the other Deco Displays. PSI Fig.
WARNING: If you exceed certain limits, the Atmos Elite will not be able to tell you how to get safely back to the surface. These situations exceed tested limits and can result in loss of some Atmos Elite functions for 24 hours after the dive in which a Violation occurred. VIOLATION MODES Violation Modes that the Atmos Elite can enter are termed - Conditional, Delayed, and Immediate. Permanent Violation Mode and Gauge Mode are continuations of these.
Conditional Violation Mode The Atmos Elite will enter the Conditional Violation Mode if you ascend to a Depth shallower (Fig. 62a) than the Required Decompression Ceiling Stop Depth displayed (Fig. 62b). Unless set OFF (a user setting), the Audible Alarm will emit a continuous tone for 10 seconds, or until acknowledged by pressing the Advance (Front) button. The Down Arrow, Deco Bar, and the Total Ascent Time display will flash until you descend below the Required Stop Depth.
NOTE: Upon entry into Delayed Violation Modes, the Audible Alarm will sound for 10 seconds, even if it is user Set OFF. It cannot be turned off (acknowledged) by pressing the Advance (Front) button. FEET FT SIGNAL NITROX PSI Full BG Flashing Fig. 63 - Delayed Violation #1 Delayed Violation Mode #1 (Fig. 63) If you remain above the Required Ceiling Stop Depth for 'more than 5 minutes', the Nitrogen Bar Graph and Total Ascent Time display will flash until you descend below the Required Stop Depth.
Delayed Violation Mode #3 (Fig. 65) If you descend deeper than 330 feet (100 meters), the accumulated Nitrogen Bar Graph segments will flash, and the Current Depth and Max Depth displays will only indicate 3 dashes ( - - -). Upon ascending above 330 feet (100 meters), the Current Depth display will be restored, however Max Depth will only display 3 dashes for the remainder of that dive. The Log for that dive will also only indicate 3 dashes as the Max Depth achieved.
Violation Gauge Mode turns the Atmos Elite into a digital instrument without any decompression or oxygen monitoring functions. Full BG Flashing FEET MAX DEPTH Displayed will be Current Depth, Elapsed Dive Time, Max Depth, Time of Day, Tank Pressure, and the Ascent Rate Indicator (Fig. 66). FT SIGNAL NITROX PSI Full BG Flashing Fig. 66 - Immediate Violation/ Gauge Mode (underwater) SIGNAL NITROX PSI Fig.
NOTE: Entry into Violation Gauge Mode is considered a Permanent Violation, and in the event that a dive is made during the 24 hour period, a full 24 hour surface interval must then be served before all functions are restored. HIGH PO2 DIVE MODE WARNING: In the event that you enter High PO2 Dive Mode, you must immediately focus on reducing the Partial Pressure of Oxygen by slowly Ascending to a shallower depth at a safe rate in accordance with your Nitrox training.
FEET SIGNAL NITROX If PO2 continues to increase, the value displayed will increase toward a maximum value of 5.00 ATA in increments of .01 ATA. When it reaches a value of 1.60 ATA, or the PO2 Alarm set point (a user setting), the red LED will flash, the Audible Alarm will sound (unless set OFF) again, and the current PO2 value, PO2 symbol, O2 (red) segment of the O2 Bar Graph, and UP Arrow will flash as a warning (Fig. 69). PSI Fig.
The O2 Bar Graph provides a graphic representation of your Oxygen Accumulation, displaying either Oxygen accumulated during that dive, or during the Repetitive dives you conduct during that 24 hour period, whichever of the two is greater at that time. The yellow Caution Zone of the O2 Bar Graph offers you a convenient way to consistently monitor how close you are coming to the Limits of Oxygen Exposure. Use it as a visual reference to place a wider margin of protection between you and the Limits.
While in High O2 Mode, the Alternate Displays similar to those previously described can be accessed using the Advance (Front) button, and the Backlight can be activated using the Select (Side) button. FEET MAX DEPTH FT SIGNAL GAUGE PSI Fig. 71 - Digital Gauge Mode USER SET DIGITAL GAUGE MODE When Digital Gauge Mode is set for ON, the Atmos Elite will operate as a Digital Depth Gauge/Timer without performing nitrogen and oxygen calculations.
NOTE: Once a dive is made Digital Gauge Mode set ON, it will remain locked ON for 24 hours after the dive. Set Digital Gauge Mode will not appear as a selection for 24 hours after the dive. WARNINGS: Making Decompression dives without the proper preparation and training will place you in an unnecessarily dangerous situation. Existing data for making planned Decompression dives is extremely limited, and virtually non-existent for Repetitive Decompression diving.
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POST DIVE MODES 79
POST DIVE SURFACE MODE When you ascend to 3 feet (1 meter) or shallower, the Atmos Elite will enter Surface Mode and begin counting your surface interval. Transition Period The first 10 minutes is, in affect, a Transition Period during which time the following information is displayed (Fig. 73): 'Number' of that dive (during that activation period) Surface Interval time (colon flashing) and icon (flashing).
To view that dive's Log (Fig. 74) Refer to page 84 for a description of the Log Mode and displays.
AFTER THE TRANSITION PERIOD (THE FIRST 2 HOURS) For the remainder of the first 2 hours after surfacing, information will continue to be displayed as Surface Mode (Fig. 75) and you will have full access to other modes (e.g., Plan, Fly, Desat, Log, Set, PC, Sim). DEPTH SIGNAL NITROX PSI Fig. 75 - Post Dive Surface Mode FEET MAX DEPTH FT Fig. 76 - Post Dive Plan Mode 82 To activate the Backlight, press the Select (Side) button.
To access the Time to Fly Countdown press the Advance (Front) button 2 times (while in Surface Mode) The unit will revert to Surface Mode after 2 minutes, unless the Advance (Front) button is pressed to access the Desat Time Countdown. If a Violation occurred during the dive a single dash ( - ) will appear instead of the graphic FLY. The Time to Fly counter (Fig. 77) is provided to assist you with deciding when enough surface time has elapsed to Fly (or travel to higher elevations).
Two hours after the last dive, the Time to Fly and Desaturation countdown screens will be displayed alternately for 3 seconds each until they Both count down to 0:00 or another dive is made. Access to other modes is gained by pressing Either button to return to Surface Mode. 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.
Button Control in Log Mode The Advance (Front) button is used to access a specific dive's Log. The Select (Side) button is then used to view the second and third screens (Nitrogen and Oxygen related data) for that dive. To return to Surface Mode at any time while in Log Mode, press Both buttons simultaneously for 2 seconds. The unit will automatically revert to Surface Mode after 2 minutes if no button is pressed while in the Log Mode.
MAX FEET NITROX Fig. 80 - Log - Nitrogen Data To view the Second Screen of the Log (Nitrogen data) (Fig. 80) press the Select (Side) button 1 time (while viewing screen 1).
AFTER THE FIRST 2 HOURS Two hours after the last dive Surface Mode will no longer be displayed, the Time to Fly and Desaturation countdowns will be displayed alternately for 3 seconds each until they count down to 0:00 or another dive is made. To access other modes or enter settings press Either button to return to Surface Mode. the unit will again revert to the Time to Fly and Desaturation countdowns after 2 hours, if no button is pressed.
DOWNLOADING DATA TO A PC NOTE: Ensure that the Download product that you acquire is compatible with the Atmos New and the PC equipment that you will be using. Using special linking hardware, dive data can be downloaded (copied) from your Atmos Elite to an IBM compatible PC program running on a Windows® operating system. Compatibility requirements and instructions are provided with the optional download package that is available from your Authorized AERIS Dealer.
SIMULATOR (DEMO) MODE 89
SIMULATOR MODE This mode provides you with the ability to practice various dive mode scenarios and computer functions and observe various displays. DEMO Fig. 85 - Simulator Mode DEMO Fig. 86 - Set Demo Gauge 90 The Backlight functions as it normally does. At any time while in Simulator Mode, pressing and holding both buttons simultaneously for 2 seconds shall revert operation to real Surface Mode.
Press and release the Advance (Front) button to accept the Gauge Mode setting and advance to DEMO: NI-O2 with CUR (or NEW) flashing (Fig. 87). When set for NEW, calculations are based on zero residual nitrogen and oxygen loading (a clean dive). When set for CUR, calculations take into consideration any residual nitrogen and oxygen remaining from previous 'actual' dives. Subsequent (repetitive) Simulated dives do not take into consideration previous Simulated dives.
Press and release the Advance (Front) button to accept the Pressure setting and revert to Demo Surface Mode with the DEMO icon flashing (Fig. 89). DEMO SIGNAL NITROX PSI Fig. 89 - Demo Surface Mode DEMO MAX DEPTH FT Fig. 90 - Set Demo FO2 Press and release the Advance (Front) button to access DEMO: FO2 with the DEMO icon and Air (or a numerical value) flashing. Press and hold the Select (Bottom) button to scroll from Air to 21% through 32% in 1% increments.
Descending Hint: Quick taps (< less than 2 seconds) of the Select (Side) button starts/stops Descents and Time Acceleration. Quick taps of the Advance (Front) button accesses Alternate displays. While the Down Arrow is flashing, tap (press/release) the Select (Side) button to begin a Descent at a rate of 5 feet (1.5 meters) per real second. Tap (press/release) the Select (Side) button during the Descent to stop the Descent.
Ascending Rate of Ascent can be set for 1 or 3 feet per seconds (fps) prior to start of the Ascent. To change the Rate during an Ascent, it must first be stopped. FEET DEMO MAX DEPTH FT SIGNAL NITROX PSI Fig. 93 - Ascent set for 1 fps FEET TOO FAST DEMO MAX DEPTH FT SIGNAL NITROX PSI Fig. 94 - Ascent set for 3 fps (Too Fast) 94 Pressing and holding the Advance (Front) button for 2 seconds will access an Ascent Rate of 1 fps.
Surfacing from a Simulated Dive The Simulator will enter Demo Surface Mode (Fig. 95) upon ascending to 3 feet (1 meter) or shallower. Press and hold the Select (Side) button for 4 seconds to access Time Acceleration. The small Time Clock icon will begin flashing. Tap (press/release) the Select (Side) button to increase Surface Interval Time 1 minute per real time second. Tap (press/release) the Select (Side) button during the Time Acceleration to restore the time rate to normal.
RESPONSIBLE COMPUTER DIVING Since the advent of dive computers, it is a common mistake to assume that the old traditional rules of diving no longer apply, but the truth is just the opposite. Keep these basic rules in mind: Plan each dive, and dive your plan - Your computer was not designed to make decisions for you, only to provide you with the information you need to make responsible decisions for yourself. This begins with a dive plan that will help you avoid a low air or decompression situation.
CARE, MAINTENANCE, and SERVICE 97
CARE AND CLEANING Protect your Atmos Elite from shock, excessive temperatures, chemical attack, and tampering. Protect the lens against scratches with an AERIS Instrument Lens Guard. Small scratches will naturally disappear underwater. CAUTION: Never spray aerosols of any kind on, or near, the instrument. The propellants may chemically attack the plastic. b a Fig.
WARNING: If a Low Battery Condition is indicated prior to a dive, DO NOT attempt to dive with the Atmos Elite until the Battery is replaced. INSPECTIONS AND SERVICE Your Atmos Elite should be inspected annually by an Authorized AERIS 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).
To Obtain Service Take you Atmos Elite to an Authorized AERIS Dealer or send it to the nearest AERIS Regional Distributor Facility. To return your Atmos Elite to AERIS: Record all dive data in the Log and/or download the data in memory. All data will be erased when it receives factory service. Package it (Display Module and Transmitter) using a protective cushioning material.
Before opening the Battery Compartment(s): Inspect the Buttons, Lens, and Housing to ensure they are not cracked or damaged. WARNING: If damage or corrosion is found in the Display Module or Transmitter, return your Atmos Elite to an Authorized AERIS Dealer, and DO NOT attempt to use it until it has received factory prescribed service.
b a c Fig. 99 - Display Module Battery Compartment Display Module Battery Removal Remove the Retaining Bar located across the lower portion of the Battery (Fig. 99a). Remove the Hatch O-ring. DO NOT use tools Using care not to damage the Battery Contacts (Fig. 99 b/c), slide the Battery up and out of the right side of the Battery Compartment. CAUTION: DO NOT allow a metal object to short circuit the top of the Battery which is positive (+) to the negative ( - ) contact of the Battery Compartment.
Inspection Closely check all of the sealing surfaces for any signs of damage that might impair proper sealing. Inspect the Buttons, Lens, and Housing(s) to ensure they are not cracked or damaged. WARNING: If damage or corrosion is found, return your Atmos Elite to an Authorized AERIS Dealer, and DO NOT attempt to use it until it has received factory prescribed service. Remove the Battery Hatch O-ring(s) and inspect it for any signs of deterioration or deformity.
Fig. 101 - Display Module Battery Installation Fig. 102 - Preparing for Hatch Ring Installation Fig. 103 - Tightening Hatch Ring 104 Display Module Battery Installation Slide a new 3 volt type CR2450 Lithium Battery, negative (-) side down into the Battery Cavity. Slide it in from the right side and ensure that it slides under the contact clip on the left rim of the cavity (Fig. 101). Orient the Retaining Bar across the lower portion of the Battery and carefully push it down into position.
Transmitter Battery Installation Lightly lubricate a new Cap O-ring with silicone grease and install it on the Battery Cap. Stretch it slightly to work it down over the slotted end of the Cap into the Groove at the Base of the Threads (Fig. 104). DO NOT roll the O-ring over the Threads. This O-ring must be a genuine AERIS part that can be purchased from an Authorized AERIS Dealer. Use of any other O-ring will void the warranty.
If any portions of the display are missing or appear dim, or if a Low Battery Condition is indicated, return your Atmos Elite to an Authorized AERIS Dealer for a complete evaluation before attempting to use it. 106 DI RESP O VER TRANSMITTER INSTALLATION To install the Transmitter on your Regulator First Stage: Remove the existing Pressure Gauge and High Pressure Hose, or the High Pressure Port Plug from the Port marked HP using the proper size Hex Key.
REFERENCE 107
DECOMPRESSION MODEL The Decompression Model used by the Atmos Elite is based on the no decompression multilevel repetitive dive schedules successfully tested by Dr. Ray Rogers and Dr. Michael Powell. These tests did not include repetitive dives deeper than 90 feet (27 meters) or decompression dives. Due to the present unavailability of statistical data, Atmos Elite decompression predictions are based on U.S. Navy theory. TISSUE COMPARTMENT CONTROL Tissue Half-Times 40 20 Display Seen by the Diver Fig.
NO DECOMPRESSION LIMITS (NDLS) Note how the No Decompression Limits for the Atmos Elite are contrasted with the U.S. Navy limits (Fig. 107). The Atmos Elite's Dive Planner does not scroll past 190 feet (57 meters), or to Depths at which projected dive time is less than one minute . WARNINGS: Using the Atmos Elite, just as using the U.S. Navy (or other) No Decompression Tables, is no guarantee of avoiding decompression sickness (i.e., the bends). AERIS advocates responsible diving practices .
OXYGEN EXPOSURE LIMITS (OTLS) Predicted exposure limits and oxygen calculations of the Atmos Elite are based on maximum exposure durations published by the National Oceanic and Atmospheric Administration (NOAA) Diving Manual (Fig. 108). Both central nervous system (CNS) oxygen toxicity and pulmonary oxygen toxicity were taken into consideration when the limits were published by NOAA. Maximum Exposure Time PO2 (ATA) 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.
Diving with enriched nitrogen-oxygen (Nitrox) mixtures requires special knowledge of the variations imposed upon divers, their activities, and their equipment by the increased percentage of Oxygen. AERIS recommends completion of a specialized Nitrox training course by a recognized training agency prior to diving with any enriched nitrogen-oxygen (Nitrox) mixtures.
The Atmos Elite senses Ambient Pressure when it is activated, every 15 minutes while it is activated, or every 30 minutes when it is not activated. 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 Exposure Limits at each additional interval of 1,000 feet (305 meters).
Since the 1990 UHMS guidelines were introduced, data from the Divers Alert Network (DAN) was introduced that resulted in DANs 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 airliner (altitude up to 8,000 feet/2,440 meters).
SPECIFICATIONS CAN BE USED AS Air Computer Nitrox Computer Digital Depth Gauge/Timer With or without the Transmitter NO DECOMPRESSION MODEL Basis: Modified Haldanean Algorithm 12 tissue compartments Data Base: DSAT - Rogers/Powell Performance: Tissue compartment halftimes.
SPECIFICATIONS (CONTINUED) OPERATIONAL MODES (continued) No Decompression Dive: #1 - Current Depth, Dive Time Remaining, Max Depth, Elapsed Dive Time, Tank Pressure, Bar Graphs #2 - Current Depth, Dive Time Remaining, Temperature, Time of Day, Tank Pressure, Bar Graphs #3 - (if set for nitrox ) - Current Depth, Dive Time Remaining, Current PO2, Tank Pressure, Bar Graphs Secondary - Current Depth, Air Time Remaining, Max Depth, Elapsed Dive Time, Tank Pressure, Bar Graphs Safety Stop - Current De
SPECIFICATIONS (CONTINUED) DISPLAY RANGES/RESOLUTION (continued) Numeric Displays: Cylinder Pressure Time to Fly Time to Desaturate Temperature Range: 0 - 5000 psi (345 bar) 23:50 - 0:00 hr:min* (* starting 10 min after the dive) 23:50 (max) - 0:00 hr:min* (* starting 10 min. after the dive) 0 to 99°F (-9 to 60°C) Special Displays: Diagnostic Display Serial Number Display Out of Range (- - -) Gauge Mode Countdown Timer Resolution: 5 psi (.
SPECIFICATIONS (CONTINUED) OPERATIONAL PERFORMANCE Function: Depth Timers Accuracy: ±1% of full scale 1 second per day Dive Counter: Displays Dives #1 to 24, 0 if no dive made yet Resets to Dive #0, upon reactivation after shutdown Dive Log Mode: Stores 24 most recent dives in memory for viewing After 24 dives, adds 25th dive in memory and deletes the first dive Altitude: Operational from sea level to 14,000 feet (4,267 meters) elevation Compensates for Altitude at elevations higher than 2
SPECIFICATIONS (CONTINUED) OPERATIONAL PERFORMANCE (continued) Activation: Manual - push button (recommended) Automatic - by immersion in water (as a backup, if set ON) H2O graphic indicates Wet Contacts are bridged (unit must be dried prior to transport or storage). Cannot be manually activated deeper than 4 feet (1.2 meters), if the Water Activation feature is set OFF.
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 Atmos Elite). Alternate Display - Additional information accessible by pressing a control button. 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 .
GLOSSARY (CONTINUED) Elapsed Dive Time - The total time spent underwater during a dive between 4 feet (1.2 meters) on initial descent to 3 feet (1 meter) on final ascent. FO2 - The fraction (percent / 100) of oxygen (O2) in the breathing gas mixture. Icon - a small pictorial representation of an operational mode LCD - Abbreviation for liquid crystal display, an easily viewed low voltage display usually found on dive computers Maximum Depth - The deepest depth attained during a dive.
INSPECTION / SERVICE RECORD O DI Purchased from ______________________ RESP Date of purchase _____________________ VER Serial Number _______________________ N SI LE B Below to be filled in by an Authorized AERIS Dealer: Date Inspection / Service Performed Dealer / Technician 121
NOTES 122
RESET FEATURE This dive computer is configured with a RESET feature that allows data to be cleared, including Nitrogen and Oxygen calculations, FO2 set point, and Log Mode entries. WARNING: Reset after a dive and subsequent use for a Repetitive Dive conducted by the same diver could result in serious injury to or death. RESET PROCEDURE While in SURFACE MODE (new activation period or greater than a 10 minute post dive surface interval), press the Advance (Front) button one (1) time to access PLAN MODE.
AERIS 14212 Doolittle Drive San Leandro, CA 94577 Tel: 510/346-0010 Fax: 510/346-0015 Web site: http://www.diveaeris.com E-mail: info@diveaeris.com © 2002 Design 2003 Doc. No.
