“ ATMOS 1 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 1 Owner's Guide, Doc. No. 12-7127 © 2002 Design 2001 San Leandro, Ca.
CONTENTS WARRANTY .................................................................................................................................................................. 2 NOTICES ...................................................................................................................................................................... 2 DECOMPRESSION MODEL ....................................................................................................................................
CONTENTS (continued) POST DIVE MODES ........................................................................................................ 31 POST DIVE SURFACE MODE .................................................................................................................................... 32 TRANSITION PERIOD ................................................................................................................................................
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.
WARNINGS AND SAFETY RECOMMENDATIONS The ATMOS 1 is not intended for use by military or commercial divers. The ATMOS 1 is intended for use by recreational divers who have successfully completed a nationally recognized course in scuba diving. It must not be used by untrained persons who may not have knowledge of the potential risks and hazards of scuba diving. It is NOT for use by military and commercial divers.
FEATURES and DISPLAYS 7
WELCOME TO AERIS AND THANK YOU FOR CHOOSING THE ATMOS 1 ! Your ATMOS 1 presents the information that you need before, during, and after your air dives using a combination of easy to read displays and identification icons. This instructional guide is intended to help you become familiar with the functions and features available and show you examples of displays that you could expect to see in the various operational modes. Relax and read through the complete owner's guide.
NITROGEN BAR GRAPH The Nitrogen Bar Graph (Fig. 2a) represents tissue loading of nitrogen, showing your relative no decompression or decompression status. 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.
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. a Depth Displays During a dive, the Current Depth display (Fig. 3a), indicates depths from 0 to 330 feet (99.9 meters) in 1 foot (.1 meter) increments.
POWER SUPPLY The ATMOS 1 utilizes one (1) type CR 2450 Lithium 3 volt cell that should provide 300 hours of continuous operation, or 50 activation periods, of operation. It is estimated that if you conduct 1 dive each time the unit is activated, you should obtain approximately 50 dives. If you conduct 3 dives each time the unit is activated, you should obtain approximately 150 dives. Low Battery Condition Voltage level is checked upon activation and every 10 minutes during operation.
KEY a. Nitrogen Bar Graph b. Ascent Rate Indicator c. Graphic - Maximum Depth d. Icon - Low Battery Condition e. Icon - Log Mode f. Graphic - Ascent Too Fast g. Graphic - Depth Imperial/Metric h. Icon - Operating Mode i. Icon - Time j. Icon - Decompression Ceiling k.
WARNING: During Activation, Diagnostics, and subsequent operation, if any display or function varies from the information presented here, DO NOT dive with the ATMOS 1. Return it to your Authorized AERIS Dealer for inspection.
ACTIVATION To Activate the ATMOS 1 press and release the Button. Backup Activation (only if Water Activation is set ON) As a backup, the ATMOS 1 will also automatically activate by water contact. This is accomplished by bridging the gap between contacts located on the Button stem and back of the case. The graphic H2O that will be displayed as an indication is described later. Upon activation, the unit will enter Diagnostic Mode (Fig.
SURFACE SEQUENCE Immediately after completing its' Diagnostic check, the ATMOS 1 will automatically scroll through the following Sequence Time of Day (displayed for 3 seconds), then Surface Mode (displayed for 3 seconds), then Time to Fly (displayed for 3 seconds only after a dive), then Plan Mode (each depth/time is displayed for 3 seconds), then The Sequence repeats for 2 hours, or until a dive is made. Log Mode and Set Mode can be accessed during the Sequence utilizing the Control Button.
Plan Mode (Fig. 9) The Plan Mode provides a sequence of theoretical dive times available for depths ranging from 30 feet (9 meters) to 160 feet (48 meters) in 10 foot (3 meter) increments. 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 120 feet (36 meters) per minute.
Sequence of Settings Units of Measure, Hour Format (12 or 24 hour), Time of Day (hour and minute), Water Activation (On or Off). To Access Set Mode and enter Settings: While the unit is scrolling through the Surface Sequence Press and hold the Button for 2 seconds, release when SET FEET (or M) appears with FEET (or M) flashing. HINT: To bypass a parameter that you do not want to set, keep the Button depressed until the item you do want to set appears, then release it. Fig.
To change the setting for Time of Day (Fig. 12) Repeatedly press the Button momentarily and release it until the correct value for Hour appears (1: to 12:, or 0: to 23:). Do Not Hold the Button depressed. Press and Hold the Button for 2 seconds to save the setting, release when the Minute value flashes. Fig. 12 - Set Time of Day Repeatedly press the Button momentarily and release it until the correct value for Minute appears (:00 to :59). Do Not Hold the Button depressed.
DIVE MODES 19
a b Fig. 14 -Bar Graphs DIVE MODE BAR GRAPHS As your depth and elapsed dive time increase, the Nitrogen Bar Graph (Fig. 14a) will fill with segments (green toward red) to represent nitrogen absorption. While ascending to shallower depths, the segments of the Nitrogen Bar Graph will begin to recede, offering a graphic representation of your multilevel diving capability. The Variable Ascent Rate Indicator shows how fast you are ascending (Fig. 14b).
NO DECOMPRESSION DIVE MODE The ATMOS 1 will enter the No Decompression Dive Mode when you descend deeper than 5 feet (1.5 meters). No Decompression Dive Mode - Display #1 (Fig. 16) Upper window - Current Depth, Dive Time Remaining (and Mode icon), and the Bar Graphs. Lower window - Maximum Depth and Elapsed Dive Time. press and release the Button to view Display #2. Fig. 16 - No Deco #1 No Decompression Dive Mode - Display #2 (Fig.
Decompression diving greatly increases your risk of decompression sickness. DECOMPRESSION DIVE MODE a b Fig. 18 - Entry into Decompression 22 Upon entering Decompression Mode, you should begin a safe controlled ascent to a depth slightly deeper than, or equal to, the Required Ceiling Stop Depth indicated (Fig. 18a) and decompress for the Stop Time indicated (Fig. 18b). The UP Arrow will flash if you are greater than 10 feet (3 m) deeper than the Required Ceiling Stop Depth.
Upper window - Current Depth, Total Ascent Time, and Bar Graphs. Total Ascent Time includes Stop Times required at all ceilings and vertical Ascent Time calculated at 60 fpm (18 mpm) for depths greater than 60 feet (18 m), and 30 fpm (9 mpm) for depths of 60 feet (18 m) and shallower. Lower window - Required Ceiling Stop Depth and Time. While within 10 feet (3 m) of, and below, the Stop Depth, both Arrows and the Deco Bar appear solid. Press the Button to view Display #2.
VIOLATION MODES Violation Modes that the ATMOS 1 can enter are termed - Conditional, Delayed, and Immediate. Permanent Violation Mode and Gauge Mode are continuations of these. WARNING: It is important to understand each different Violation Mode and how to carry out emergency procedures in the event that you enter one. NOTE: While in Violation Mode, the Alternate Display can be viewed by pressing the button. It will automatically revert to the Main Display after 3 seconds.
Once the Penalty Time is worked-off, and off-gassing credit begins, required decompression Stop Depths and Time will decrease toward zero, then the Nitrogen Bar Graph will recede into the yellow Caution Zone and the ATMOS 1 will revert to the No Decompression Dive Mode. Delayed Violation Mode #1 (Fig. 22) 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.
WARNING: Special training, equipment, and support are necessary for diving deeper than the maximum recommended sport diving depth limit(s). Delayed Violation Mode #3 (Fig. 24) If you descend deeper than 330 feet (99.9 meters), the Nitrogen Bar Graph will flash, and the Current Depth and Max Depth displays will only indicate 3 dashes ( - - -). Upon ascending above 330 feet (99.5 meters), the Current Depth display will be restored, however Max Depth will only display 3 dashes for the remainder of that dive.
Gauge Mode turns the ATMOS 1 into a digital instrument without any decompression monitoring functions. Only Current Depth, Max Depth, Elapsed Dive Time, and the Ascent Rate Indicator will be displayed (Fig. 25). The full Nitrogen Bar Graph will flash as a warning of this condition. Alternate displays are not available while in Gauge Mode. The ATMOS 1 will also enter an Immediate Violation Mode 5 minutes after reaching the surface from a dive in which a Delayed Violation occurred. Flashing Fig.
WARNINGS AND SAFETY RECOMMENDATIONS The Plan Mode provides predicted times for subsequent dives. Depending on cylinder size and breathing gas consumption, you may have less time available than indicated because of breathing gas quantity or other limitations. Until it has shut itself off, you must not use the ATMOS 1 at a different Altitude than the Altitude at which it was activated.
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.
WARNINGS AND SAFETY RECOMMENDATIONS If your ATMOS 1 stops working for any reason, it is important that you have anticipated this possibility and are prepared for it. This is an important reason for not pushing the no decompression limits, and a critical reason to avoid entering decompression.
POST DIVE MODES 31
POST DIVE SURFACE MODE When you ascend to 3 feet (1 meter) or shallower, the ATMOS 1 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. 27): Fig.
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. 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 Dive Time.
As you should be aware from your own training, the longer you wait to fly (or travel to higher elevations) after diving, the more you will reduce your exposure to decompression sickness. 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.
Dives are displayed in a reverse sequence that starts with the dive most recently recorded back to the oldest of the dives stored. Thus, your most recent dive will always be the first shown in the sequence. Each dive has two Log screens - Number / Time of Day started and Dive Data. After 9 dives are accumulated, each subsequent dive will overwrite the oldest dive in the Log (i.e., the most recent dive deletes the oldest).
Flashing Fig. 33 - Log Dive Data Dive Data (the second screen) includes (Fig. 33) Log Mode icon Maximum Depth - reached during that dive (and icon) Elapsed Dive Time (and icon) Surface Interval - prior to that dive (and icon) Variable Ascent Rate Indicator - showing the maximum ascent rate maintained for 4 consecutive seconds during the dive. Nitrogen Bar Graph - showing tissue nitrogen loading at the time you surfaced at the end of the dive.
WARNING: DO NOT attempt to change the Battery during the first 10 minutes after surfacing from a dive. Doing so will result in loss of calculated data for repetitive dives.
WET CONTACTS If the graphic H2O appears during the Fly Mode countdown (Fig. 35), it is an indication that the water activation contacts are bridged (still wet) and the unit must be rinsed in fresh water and thoroughly dried. Once the unit is dry, the graphic H2O will disappear from the display (Fig. 36). Fig. 35 - Activation Contacts Wet If the unit is not cleaned and dried prior to the countdown reaching 0:00 (hr:min), or making another dive, it will shut off then automatically reactivate.
Soak and rinse the ATMOS 1 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. 37) and button are free of debris or obstructions. To dissolve salt crystals, use lukewarm water or a slightly acidic white vinegar/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.
WARNING: If you are in doubt about the accuracy of your ATMOS 1's depth readings, DO NOT attempt to dive with it until it has been inspected by AERIS Customer Service. It is possible to damage the depth sensor of the ATMOS 1 if it is not pressure tested properly. Ensure that the Dealer adheres to the following warning. WARNING: Ensure that the ATMOS 1 is never pressure tested in an air environment. Doing so may damage the depth sensor, possibly resulting in erroneous depth or time readings.
WARNING: If a Low Battery Condition is indicated prior to a dive, DO NOT attempt to dive with the ATMOS 1 until the battery is replaced. NOTE: The procedures that follow must be closely adhered to. Damage due to improper battery replacement is not covered by the ATMOS 1's 2 year warranty. 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.
Fig. 38 - Removal from Boot Module Removal from Boot DO NOT use tools or lubricants. Doing so could damage the module or boot. Use care not to drop the module when it dislodges from the boot. Turn the unit over so the back is facing you. Using the fingers of your left hand, lift and pull the top (upper/ front portion) of the Boot back toward you while simultaneously pressing the top (upper/right portion) of the module away with your right thumb (Fig. 38).
NOTE: If available, an adjustable face spanner tool or a pair of pointed pliers can be used instead of the screwdriver by inserting the tips of the tool in the small holes in the Ring (Fig. 40). Lift the Hatch Ring up and away from the Housing. Remove the clear Battery Hatch. Battery Removal Remove the Retaining Bar located across the lower portion of the Battery (Fig. 41a). Remove the Hatch O-ring. DO NOT use tools Using care not to damage the Battery Contacts (Fig.
WARNING: If damage, moisture, or corrosion is found, it is recommended that you return your ATMOS 1 to an Authorized AERIS Dealer, and DO NOT attempt to use it until it has received factory prescribed service. Fig. 42 -Battery Installation Fig. 43 - Hatch Installation 44 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.
Maintain the Battery Hatch securely in place and, using your other hand, slide the Hatch Ring down off your thumb and into position around the Battery Compartment. The tabs on the Ring fit down into the slots located at the 2 and 9 o'clock positions. Using your fingers, turn the Ring counter clockwise 5 degrees until the tabs engage, then tighten it 5 more degrees by turning it counter clockwise with the aide of a small blade screwdriver, pressing against the upper/left arm of the Ring (Fig. 44). Fig.
Fig. 46 - Lower Portion of Module Installing the Module into a Boot DO NOT use tools or lubricants, doing so could damage the module or boot. Hold the Module over the Boot (both facing you). Slide the lower/front portion of the Module down into the cavity of the Boot (Fig. 46). Place the fingers of your left hand inside the upper/back portion of the Boot.
REFERENCE 47
DECOMPRESSION MODEL The Decompression Model used by the ATMOS 1 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 1 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 Note how the No Decompression Limits for the ATMOS 1 are contrasted with the U.S. Navy limits (Fig. 49). The ATMOS 1's Dive Planner does not scroll past 160 feet (48 meters), or to depths at which projected dive time is less than one minute . WARNING: Using the ATMOS 1, just as using the U.S. Navy (or other) No Decompression Tables, is no guarantee of avoiding decompression sickness (i.e., the bends). WARNING: AERIS advocates responsible diving practices .
ALTITUDE DIVING Diving at high altitude requires special knowledge of the variations imposed upon divers, their activities, and their equipment by the decrease in atmospheric pressures. AERIS recommends completion of a specialized Altitude training course by a recognized training agency prior to diving in high altitude lakes or rivers. Atmospheric pressure decreases as altitude increases above sea level. Weather systems and ambient temperature also affect barometric pressures.
FLYING AFTER DIVING 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* 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 to 8,000 feet. (2,440 meters).
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 (330 meters) above sea level, or greater. When repetitive dives are conducted during the same day, or period of days, it is suggested that the interval be increased to a minimum of 24 hours. Note that land travel to higher elevations after diving must also be considered as an exposure to altitude.
SPECIFICATIONS NO DECOMPRESSION MODEL OPERATIONAL MODES Basis: Modified Haldanean Algorithm 12 tissue compartments Activation/Diagnostic Surface Sequence: Time of Day Surface Mode Time to Fly Countdown Plan Mode Dive Log (Time, Data) Data Base: Diving Science and Technology (DSAT) - Rogers/Powell Performance: Tissue compartment halftimes (mins.
SPECIFICATIONS (CONTINUED) DISPLAY RANGE/RESOLUTION Numeric Displays: Dive Number Depth Max Depth Dive Time Remaining Total Ascent Time Decompression Stop Time Elapsed Dive Time Surface Time Dive Log Surface Interval Range: 0-9 0 - 330 ft (0 - 99.9 m) 330 ft (99.9 m) 0:00 - 9:59 hr:min 0:00 - 9:59 hr:min 0:00 - 9:59 hr:min 0:00 - 9:59 hr:min 0:00 - 23:59 hr:min 0:00 - 23:59 hr:min Resolution: 1 1 ft (.1 m ) 1 ft (.
SPECIFICATIONS (CONTINUED) DISPLAY RANGE/RESOLUTION (continued) Variable Ascent Rate Indicator: 60 feet (18 m) & Shallower Deeper than 60 feet (18 m) segments 0 1 2 3 4 5 segments 0 1 2 3 4 5 Normal Zone (Green) Normal Zone (Green) Normal Zone (Green) Caution Zone (Yellow) Too Fast Zone (Red - flashing) feet/min 0 - 10 11 - 15 16 - 20 21 - 25 26 - 30 > 30 meters/min 0-3 3.5 - 4.5 5-6 6.5 - 7.5 8-9 >9 feet/min 0 - 20 21 - 30 31 - 40 41 - 50 51 - 60 > 60 meters/min 0-6 6.5 - 9 9.5 - 12 12.
SPECIFICATIONS (CONTINUED) OPERATIONAL PERFORMANCE (continued) Power: Battery Shelf life Replacement Life expectancy 1 - 3 vdc, type CR2450 Lithium battery Up to 5 years User replaceable (annual recommended) 100 dive hours (if 1 - 1 hour dive per dive day) to over 300 dive hours (if 3 - 1 hour dives per dive day) Activation: Manual - push button (recommended) Automatic - by immersion in water (as a backup, if set ON) Cannot be activated at elevations higher than 14,000 feet (4,267 m) Canno
GLOSSARY Algorithm - A step-by-step mathematical formula designed to accomplish a particular result (i.e. Dive Time Remaining in the ATMOS 1). 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 . Ascent Rate - The speed that a diver ascends toward the surface.
GLOSSARY (CONTINUED) 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. Mode - A specific set of functions in a dive computer. Multi-level Dive - A type of dive profile where the diver spends various times at different depths (opposite of a Square Wave dive profile).
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 Service Performed Dealer / Technician 59
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 2001 60 Doc. No.
