XR2 DIVE COMPUTER OPERATING MANUAL
LIMITED TWO-YEAR WARRANTY For details, refer to the Product Warranty Registration Card provided. COPYRIGHT NOTICE This Operating Manual 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. XR2 Operating Manual, Doc. No.
CONTENTS WARRANTY ................................................................................................................................................................. 2 NOTICES ..................................................................................................................................................................... 2 DECOMPRESSION MODEL ......................................................................................................................................
CONTENTS (continued) RESET (CLEAR) FEATURE ........................................................................................... 42 PRE DIVE PLAN MODE ................................................................................................. 43 DIVE PLANNER ......................................................................................................................................................... 44 DIVE MODES ........................................................................
CONTENTS (continued) SIMULATOR (DEMO) MODE .......................................................................................... 75 CARE, MAINTENANCE, AND SERVICE ........................................................................ 81 CARE AND CLEANING ............................................................................................................................................. 82 INSPECTIONS AND SERVICE ................................................................................
FULL LCD LAYOUT i g j h k l f e o p d q c r b a 6 m n Components: a. Advance (Front) Button b. Red Alarm Light c. VARI d. NiBG e. Icon - Max Depth (Dive) f. Icon - Temperature g. Icon - Max Depth (Log) h. Icon - Set Alarm i. Icon - Dive Number j. Icon - Log Mode k. Icon - Depth Units l. Icon - Demo Mode m. Icon - Ascend Arrow Icon - Deco Ceiling Bar Icon - Descend Arrow n. Icon - Time o. Select (Side) Button p. Icon - Battery Status q. O2BG r.
WARNING: Prior to diving with the XR2, you must also read and understand the AERIS Dive Computer Safety & Reference Manual, Doc. No. 12-7203, which provides Important Warnings and Safety Recommendations as well as general product information.
WELCOME TO AERIS ! AND THANK YOU FOR CHOOSING THE XR2 ! Your XR2 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. 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.
CONTROL BUTTONS The two Control Buttons allow you to select display options, access specific information when you want to see it, and activate 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.
Oxygen (O2) Accumulation Bar Graph The O2 Bar Graph (Fig. 2a) represents Oxygen Loading, your relative oxygen tolerance dosage (OTU), showing the maximum of either per dive accumulated Oxygen, or 24 hour period accumulated Oxygen. As your accumulation increases during the dive, segments will add to the Bar Graph, and as loading decreases, it will begin to recede, indicating that additional exposure is allowed. b a 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. 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. The Maximum Depth reached during that dive will be displayed with the MAX icon (Fig. 3b).
Due to the importance of the information it presents, the Main Time display (Fig. 4a) is configured with the largest segments of the LCD. Another time display (Fig. 4b) provides additional information. Both are identified by clock icon. b Date is displayed only to identify dive data while it is viewed in the Log Mode. a Fig. 4 - Time Displays When Units of Measure are set for 'Imperial', the Month appears to the left of Day. When set for Metric, the Month appears to the right of Day.
AUDIBLE ALARM When warning situations activate the Alarm, the unit will emit a continuous tone for 10 seconds, or until the situation is corrected, or it is acknowledged by pressing the Advance (Front) button for 2 seconds. If acknowledged by the user and the situation corrected, the Alarm will sound again upon reentry into the warning situation, or entry into another type of warning situation.
NOTE: AERIS recommends that you always carry primary and backup dive lights when conducting dives that could include low light situations. LED WARNING INDICATOR The red LED Warning Light located on the lower/left portion of the module (Fig. 6) is synchronized with the Audible Alarm and will flash while an Alarm sounds. The LED will be OFF when the Alarm is acknowledged, or Set OFF (a user setting). BACKLIGHT To activate the Backlight while on the Surface Mode press the Select (Side) button for 2 seconds.
POWER SUPPLY The XR2 utilizes one (1) type CR 2450 Lithium 3 volt cell that should provide approximately 300 Hours of continuous operation, or 50 activation Periods of operation. 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. Battery Indicator A Battery Indicator provides an indication of battery condition.
Low Battery Condition Voltage level is checked upon activation and every 10 minutes during operation. If a Low Battery Condition exists when the unit is activated (by pressing the button), the Battery icon will appear flashing once per second for 5 seconds (Fig. 8) followed by shutdown of the unit. 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).
FO2 MODE After Activation, the XR2 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 %). NOTE: Setting FO2 is described on Page 27. When set with an FO2 value of AIR (Fig. 9), the XR2 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. FO2 50% DEFAULT Fig. 11 - FO2 Default ON 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 dive computer constantly monitors no decompression status and oxygen exposure. The Dive Time Remaining* display will indicate the time that is more critical for you at that particular moment (i.e.; whichever time is the least amount available). The specific time being displayed is identified by the No Decompression Dive Time icon, or the O2 Time icon.
As you ascend from depth following a dive that has approached the no decompression limit, the Nitrogen Bar Graph will recede as control shifts to slower compartments. This is a feature of the decompression model that is the basis for multilevel diving, one of the most important advantages that Aeris dive computers offer. The no decompression algorithm is based upon Haldanes theory using maximum allowable nitrogen levels developed by Merrill Spencer.
WARNING: Prior to diving with the XR2, you must also read and understand the AERIS Dive Computer Safety & Reference Manual, Doc. No. 12-7203, which provides Important Warnings and Safety Recommendations as well as general product information.
ACTIVATION To Activate the XR2, press and release the Advance (Front) button. Fig. 15 - Diagnostic Mode The XR2 will also automatically activate by water contact, unless Wet Activation is set OFF (a user setting). This is accomplished by bridging the gap between contacts located on the stems of the control buttons and back of the module. The graphic H2O will be displayed as an indication.
When manually Activated, it will also check the ambient barometric pressure and at elevations of 2,000 feet (610 meters) or higher, it will recalibrate its present Depth as zero. At elevations higher than 14,000 feet (4,270 meters), it will shutdown. If values are acceptable, the unit will enter Surface Mode. If any value is not acceptable, the unit will shut down in 5 seconds. If no dive is made within 2 hours after initial activation, the unit will automatically deactivate.
WARNING: If a Low Battery condition is displayed after diagnostics, DO NOT dive with the XR2 until the Battery is changed. SET MODES Fig. 18 - Set Mode 1 To help simplify the operations that you might perform at the dive site, settings are divided into 2 categories. Set Mode 1 includes several settings that you would change more often and Set Mode 2 includes those items not likely to change once you set them. Set Mode 2 can be accessed by first entering settings in Set Mode 1, or by bypassing Set Mode 1.
If the buttons are held longer and SET 1 and SET 2 are both bypassed, the unit will go to Simulator (DEMO) Mode which is described on page 79. While in the Set Mode, if neither button is pressed during a period of 2 minutes, the unit will revert to Surface Mode. ENTERING SETTINGS - SET MODE 1 Sequence of the SET 1 Menu FO2 > Max Depth Alarm > Elapsed Dive Time Alarm > PC TO SET - FO2 (while in the Surface Mode) Factory set for AIR, FO2 can also be set to values between 21 and 50% in increments of 1%.
Press and release the Advance (Front) button to accept the setting and advance to Set Max Depth Alarm, or depress and hold Both buttons for 2 seconds to revert to Surface Mode. The unit reverts to Surface Mode in 2 minutes if no button is pressed. TO SET - MAX DEPTH ALARM (while in the Surface Mode) Factory set for 330 feet, the Maximum Depth Alarm can be set to values between 30 feet (3 meters) and 330 feet (99 meters) in increments of 10 foot (3 meters). Fig.
TO SET - ELAPSED DIVE TIME (EDT) ALARM (while in the Surface Mode) Factory set for 0:00 (hr:min), the EDT Alarm can be set to values between 0:10 and 3:00 (hr:min) in increments of 0:05 (hr:min). Depress Both buttons simultaneously, release when SET 1 appears (2 seconds). Press and release the Advance (Front) button, FO2 appears with the set value flashing. Press and release the Advance (Front) button 2 more times.
NOTE: For more information regarding PC Interface, refer to page 74 of this manual and to documents provided for the Interface product. PC INTERFACE PC Interface is not a setting, it is included in the SET 1 menu for easy access when data in the unit's memory is to be downloaded (copied) to the PC download software program for storage and viewing, or Settings are to be Uploaded from the PC program.
ENTERING SETTINGS -SET MODE 2 As in the SET 1 Menu, to return to Surface Mode at any time while in the SET 2 Menu, depress and hold Both buttons simultaneously for 2 seconds. The unit will also revert to Surface Mode after 2 minutes if no button is pressed.
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). Depress Both buttons simultaneously, release when SET: 2 appears (4 seconds). Press and release the Advance (Front) button, the Units screen appears with the graphic Hour and Set Point 12 (or 24) flashing (Fig. 26).
TO SET - TIME OF DAY (while in the Surface Mode) Factory set for factory local time, the Time can be set to values between 0:00 to 12:59 (Am/Pm) or 0:00 to 23:59 (24 Hr Format). Depress 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 and release the Advance (Front) button 2 more times.
TO SET - YEAR (while in the Surface Mode) Factory set for the factory local Date, the Date can be set to values between 1/01/2005 and 12/31/2042. Adjustments for Leap Years are performed automatically. Fig. 29 - Set Year Fig. 30 - Set Month Fig. 31 - Set Day 32 After having set and accepted the Time of Day, the Date appears with the graphic dAY, and Year value flashing (Fig. 29).
TO SET - AUDIBLE ALARM (while in the Surface Mode) Factory set for ON, the Alarm can be also be set to OFF. This setting also applies to the red LED Warning Indicator that is synchronized with the Audible. When set OFF, the Alarm will not sound during the conditions described on page 13. Depress 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.
TO SET - MAX NITROGEN BAR GRAPH (NiBG) ALARM (while in the Surface Mode) Factory set for DECO (all 5 segments), the Max NiBG Alarm can be set to values between DECO (5 segments) and 1 segment. Depress 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 8 more times. The graphic ndc and Alarm (speaker) icon appear with the NiBG segments flashing (Fig.
TO SET - DIVE TIME REMAINING (DTR) ALARM (while in the Surface Mode) Factory set for 0:00 (minutes), the DTR Alarm can be set to values between 0:00 and 0:20 (minutes) in increments of 1 minute. Depress 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 9 more times.
TO SET - MAX PO2 ALARM (while in the Surface Mode) Factory set for 1.60 (ATA), the Max PO2 Alarm can be set to values between 1.20 and 1.60 (ATA) in increments of .10 (ATA). Depress 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. The graphic PO2, MAX icon, and Alarm (speaker) icon appear with the PO2 Alarm value flashing (Fig. 35).
TO SET - FO2 50% DEFAULT (while in the Surface Mode) Factory set ON, the FO2 50% Default feature can be set to OFF. The effects of operating with this feature being set ON or OFF are described on page 18. Depress 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 11 more times.
TO SET - BACKLIGHT DURATION (while in the Surface Mode) Factory set for 5 (seconds), the Backlight Duration can be set to values of 0, 5, or 10 (seconds). Backlight Duration is the length of time (seconds) the Backlight will remain ON after the button is released to activate it. Depress 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.
TO SET - SAMPLING RATE (while in the Surface Mode) Factory set for 30 (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 in the unit's memory during a dive for subsequent download to the PC Interface program. This setting has no effect on update frequency of data displayed during dive activity or data in the unit's Log.
TO SET - DIGITAL GAUGE MODE (while in the Surface Mode) Factory set OFF, Digital Gauge Mode can also be set ON. This feature is described on page 65. 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. Depress Both buttons simultaneously, release when SET 2 appears (4 seconds).
TO SET - WET ACTIVATION (while in the Surface Mode) Factory set ON, this feature can also be set OFF (disabled). When set ON, the XR2 will automatically Activate and enter Dive Mode upon immersion in water and descent to 5 feet (1.5 meters). WARNING: If the Wet Activation feature is set OFF, the XR2 must be manually (push button) activated prior to commencing a dive. Depress Both buttons simultaneously, release when SET 2 appears (4 seconds).
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. Fig. 41 - Clear (Reset) 42 RESET (CLEAR) FEATURE The XR2 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: Prior to diving with the XR2, you must also read and understand the AERIS Dive Computer Safety & Reference Manual, Doc. No. 12-7203, which provides Important Warnings and Safety Recommendations as well as general product information.
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 120 feet (36 meters) per minute. Depths greater than the Maximum Depth that can be achieved with a PO2 of 1.60 ATA will not be displayed.
WARNING: The Wet Activation feature will not function unless it is Set ON (a user setting) and the contacts are bridged without interference. If the contacts remain dry during a descent and an attempt is made to activate it at depth by pressing the button or if the contacts then become wet, it will come On briefly then shut Off and not operate in dive mode.
WARNING: Prior to diving with the XR2, you must also read and understand the AERIS Dive Computer Safety & Reference Manual, Doc. No. 12-7203, which provides Important Warnings and Safety Recommendations as well as general product information.
DIVE MODE BAR GRAPHS As your Depth and Elapsed Dive Time increase, the Nitrogen Bar Graph (Fig. 44a) will fill with segments (gray toward red) to represent the absorption of Nitrogen. While ascending to shallower depths, the segments that have filled the Nitrogen Bar Graph will begin to recede, offering a graphic representation of your multilevel diving capability. If FO2 was set for a numerical value (nitrox), the O2 Bar Graph (Fig.
During conditions in which cautionary type information is displayed (e.g., Decompression, High PO2, etc.), there is a Main Display of important information relevant to the specific condition. You can access Alternate Displays, which will automatically revert to the Main Display after 3 seconds. To activate the Backlight during dive mode: depress the Select (Side) button for 2 seconds.
No Deco - Main Display 2 (Fig. 46) Information includes Current Depth and icon FT (or M), Max Depth and icon MAX, Elapsed Dive Time (and wave/clock icon), Dive Time Remaining (and wave/clock/profile Mode icon), and applicable bar graphs. Press and release the Advance (Front) button to change to Main Display 3, press again to change to other Main Displays. Fig. 46- No Deco Main 2 No Deco - Main Display 3 (Fig.
No Deco - Main Display 4 (if a nitrox dive) (Fig. 48) Information includes Current Depth and icon FT (or M), current value of PO2 (ATA) and graphic PO2, Dive Time Remaining (and wave/clock/profile Mode icon), and applicable bar graphs. Press the Advance (Front) button to view Display #1.
DECOMPRESSION DIVE MODE The XR2 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 Deco Dive Mode (Fig. 50) Upon entering Deco 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 c Fig.
Managing Decompression Stops The amount of Decompression credit time that you receive is dependent on Depth, with slightly less credit given the deeper you are. You should stay slightly deeper (Fig. 51a) than the Required Stop Depth indicated (Fig. 51b) until the next shallower Stop Depth appears. Then, you can slowly Ascend to, but not shallower than that indicated ceiling Stop Depth. Deco - Main (Default) Display (Fig.
Deco - Alternate Display 2 (Fig. 53) Information includes Current Depth (and FT or M icon), Temperature (and degree icon with graphic F or C), both Arrows and the Deco Bar (solid), Time of Day (and clock icon), Total Ascent Time with Deco Mode icon (wave/clock/profile/deco bar), and applicable bar graphs. Fig. 53 -Deco ALT 2 Press and release the Advance (Front) button to view ALT 3, if a Nitrox dive. The display will revert to the Main after 3 seconds. Deco - Alternate Display 3 (Fig.
WARNING: If you exceed certain limits, the XR2 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 XR2 functions for 24 hours after the dive in which a Violation occurred. VIOLATION MODES Violation Modes that the XR2 can enter are termed - Conditional, Delayed, and Immediate. Permanent Violation Mode and Violation Gauge Mode are continuations of these.
Conditional Violation The XR2 will enter the Conditional Violation Mode if you Ascend to a depth shallower (Fig. 55a) than the Required Decompression Ceiling Stop Depth displayed (Fig. 55b). Unless set OFF (a user setting), the Audible Alarm will sound for 10 seconds or until acknowledged by pressing the Advance (Front) button for 2 seconds. 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, even if it is user Set OFF. It cannot be turned off (acknowledged) by pressing the Advance (Front) button. Delayed Violation 1 (Fig. 56) If you remain above the Required Ceiling Stop Depth for 'more than 5 minutes', the Nitrogen Bar Graph and Total Ascent Time displayed will flash until you descend below the Required Stop Depth. This is a continuation of a Conditional Violation. Flashing Fig.
Delayed Violation 3 (Fig. 58) If you descend deeper than 330 feet (99.5 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. The Log for that dive will also only indicate 3 dashes as the Max Depth achieved.
Violation Gauge Mode turns the XR2 into a digital instrument without any decompression or oxygen monitoring functions. Only Current Depth, Max Depth, Elapsed Dive Time, and the Ascent Rate Indicator will be displayed (Fig. 59). The full Nitrogen Bar Graph and O2 Bar Graph will flash as a warning of this condition. To view Temperature and Time of Day - press the Advance (Front) button. To activate the Backlight - press the Select (Side) button.
HIGH PO2 As Depth increases during a dive, the partial pressure of oxygen (PO2) increases. When PO2 becomes equal to, or greater than, 1.40 ATA, or 0.2 ATA less than the PO2 Alarm Set Point (a user setting), the Audible Alarm will sound (unless set OFF), and the current PO2 value, graphic PO2, O2 segment of the O2 Bar Graph, and UP Arrow will appear on the Main Display as a warning until PO2 decreases. Current Depth and Dive Time Remaining will also be displayed (Fig. 61). Fig.
During conditions of High PO2, Alternate Displays previously described can be accessed using the Advance (Front) button, and the Backlight can be activated using the Select (Side) button. Operation will automatically revert to the Main Display after 3 seconds unless the Advance (Front) button is pressed to view another display of information.
If the theoretical amount of oxygen accumulated equals, or exceeds, the limit for a single exposure, or the exposure limit for a 24 hour period, Oxygen Dive Time Remaining becomes zero (0:00) and the O2 Bar Graph will enter the red O2 (Danger) Zone (Fig. 63). The Audible Alarm will sound (unless set OFF) and the UP Arrow and the full O2 Bar Graph will flash as a warning until the level of oxygen decreases below the limit.
NOTE: During conditions of High O2, operations will automatically revert to the Main Display after 3 seconds unless the Advance (Front) button is pressed to view another display of information. USER SET DIGITAL GAUGE MODE When User Set Digital Gauge Mode is set for ON, the XR2 will operate as a digital Depth Gauge/Timer without performing nitrogen and oxygen calculations.
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. Decompression diving greatly increases your risk of decompression sickness. DI RESP O VER Special training, equipment, and support are necessary for diving deeper than the maximum recommended sport diving depth limit(s).
WARNING: Prior to diving with the XR2, you must also read and understand the AERIS Dive Computer Safety & Reference Manual, Doc. No. 12-7203, which provides Important Warnings and Safety Recommendations as well as general product information.
POST DIVE SURFACE MODE When you ascend to 3 feet (1 meter) or shallower, the XR2 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. 66): Number of that dive (during that period of activation) Temperature (and degree icon with graphic F or C) Time of Day (and clock icon) Surface Interval time (colon flashing) and clock icon (flashing).
Log Mode during the Transition Period To view that dive's Log Preview screen (Fig. 67) Press the Advance (Front) button 1 time. Press the Select (Side) button 1 time to view that dive's Log Nitrogen data screen. Press the Select (Side) button again to view that dive's Log Oxygen data screen (if a nitrox dive). Press Both buttons simultaneously for 2 seconds to return to Surface Mode. The unit will revert to Surface Mode after 2 minutes if no button is pressed.
AFTER THE TRANSITION PERIOD (THE FIRST 2 HOURS) For the remainder of the first 2 hours after surfacing, information will be displayed as Surface Mode (Fig. 68) and you will have full access to other modes (e.g., Plan, Fly, Sat, Log, Set, Sim, PC). To activate the Backlight, press the Select (Side) button. To access the Dive Planner (Plan Mode) (Also refer to page 44) Fig. 68 - Surface Mode Press the Advance (Front) button 1 time (while in Surface Mode).
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 Sat Time Countdown. If a Violation occurred during the dive, a dash ( - ) will appear instead of the graphic FLY. The Time to Fly counter (Fig. 70) is provided to assist you with deciding when enough surface time has elapsed to fly (or travel to higher elevations).
To access the Time to Desaturate Countdown Press the Advance (Front) button 3 times (while in Surface Mode). The countdown starts 10 minutes after surfacing at 23:50 (hr:min) maximum and counts down to 0:00 (hr:min). The Time to Desaturate Countdown displays the graphic SAT and a counter (Fig. 71) that provides calculated time for tissue desaturation (release of nitrogen loading) at sea level. If a Violation occurred during the dive, Desaturation Time will not be displayed.
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 Nitrogen and Oxygen data screens 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.
Flashing Fig. 73 - Log Ni Data Screen To view the Nitrogen Data Screen for that Dive Press the Select (Side) button 1 time while viewing the Preview Screen. Information displayed includes (Fig. 73) Log Mode icon. Max Depth - reached during the dive (and MAX icon). Temperature - minimum during that dive (and degree icon with graphic F or C). Surface Interval - prior to that dive (and clock/wave icon).
AFTER THE FIRST 2 HOURS Two hours after the last dive, Surface Mode will no longer be displayed. The Time to Fly and Desaturation countdown screens 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. Fig.
DOWNLOADING DATA TO A PC Using special linking hardware, dive data can be downloaded (copied) from your XR2 to an IBM compatible PC program running on a Windows® operating system. Compatibility requirements and instructions are provided with the PC Interface product that is available from your Authorized AERIS Dealer. NOTE: Ensure that the PC Interface product that you acquire is compatible with the XR2 and the PC equipment that you will be using.
WARNING: Prior to diving with the XR2, you must also read and understand the AERIS Dive Computer Safety & Reference Manual, Doc. No. 12-7203, which provides Important Warnings and Safety Recommendations as well as general product information.
SIMULATOR MODE This mode provides you with the ability to practice various dive mode scenarios and computer functions while observing the various displays. Fig. 78 - Simulator Mode At any time while in Simulator Mode, pressing and holding Both buttons simultaneously for 2 seconds will revert operation to real Surface Mode.
When set OFF, it operates as it would as an Air or Nitrox dive computer. Press and release the Select (Side) button to toggle between ON and OFF. Press and release the Advance (Front) button to accept the setting and advance to DEMO NI-O2 with the graphic NEW (or CUR) flashing (Fig. 80). When set for NEW, calculations are based on zero residual nitrogen and oxygen loading (a clean dive).
Descending Press and hold the Select (Side) button for 2 seconds to access Dive Mode. The DOWN Arrow will appear flashing (Fig. 83). Press and release the Select (Side) button to begin a Descent at a rate of 5 feet (1.5 meters) per real time second. Press and release the Select (Side) button during the Descent to stop the Descent. Fig. 83 -Demo Start Descent During the Descent, pressing and releasing the Advance (Front) button provides access to the Alternate Displays.
Ascending Alternate Displays cannot be accessed during Simulated Ascent. While stopped at depth, press and hold the Advance (Front) button for 2 seconds to access Set Ascent Rate. The UP Arrow will appear flashing (Fig. 85). Press and release the Advance (Front) button to begin an Ascent at a rate of 60 feet (18 meters) per minute at depths deeper than 60 feet (18 meters), or a rate of 30 feet (9 meters) per minute at depths of 60 feet (18 meters) and shallower.
Simulated Post Dive Surface Mode The Simulator will enter Demo Surface Mode (Fig. 87) 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 begins flashing. Press and release the Select (Side) button to increase Surface Interval Time 1 minute per real time second. Press and release the Select (Side) button during the Time Acceleration to restore the normal time rate of 1 second per real second.
WARNING: Prior to diving with the XR2, you must also read and understand the AERIS Dive Computer Safety & Reference Manual, Doc. No. 12-7203, which provides Important Warnings and Safety Recommendations as well as general product information.
CARE AND CLEANING Protect your XR2 from shock, excessive temperatures, chemical attack, and tampering. Protect the lens against scratches with an Instrument Lens Protector. 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. Soak and rinse the XR2 in fresh water at the end of each day of diving, and check to ensure that the areas around the Depth Sensor (Fig.
WARNING: If a Low Battery Condition is indicated prior to a dive, DO NOT attempt to dive with the XR2 until the Battery is replaced. INSPECTIONS AND SERVICE Your XR2 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 XR2 to an Authorized AERIS Dealer or send it to the nearest AERIS Regional Distributor Facility. To return your XR2 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 using a protective cushioning material.
Battery Hatch Removal Inspect the Button, Lens, and Housing to ensure they are not cracked or damaged. If there is any sign of moisture in the module, DO NOT use the XR2 until it receives proper service by an Authorized AERIS Dealer, or the AERIS factory. Locate the Battery Compartment on the back of the Housing. While applying steady inward pressure on the Battery Hatch, rotate the Hatch Ring clockwise 10 degrees by pressing on the upper/right arm of the Ring with a small blade screwdriver (Fig.
Battery Removal Remove the Retaining Bar located across the lower portion of the Battery (Fig. 90a). Remove the Hatch O-ring. DO NOT use tools. Using care not to damage the Battery Contacts (Fig. 90 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.
Battery Installation Slide a new 3 volt type CR2450 Lithium Battery, negative (-) side down into the Battery Cavity from the right side and ensure that it slides under the contact clip on the left rim of the cavity (Fig. 91). Orient the Retaining Bar across the lower portion of the Battery and carefully push it down into position (Fig. 92). Battery Hatch and Hatch Ring Installation Lightly lubricate the new Hatch O-ring with silicone grease and place it on the inner rim of the Battery Hatch (Fig. 93).
Using your fingers, turn the Ring counter clockwise 5 degrees until the tabs engage (Fig. 94), then tighten it 5 more degrees by turning it counter clockwise with the aide of a small blade screwdriver (Fig. 95). While tightening the Retaining Ring, exert continuous inward pressure on it until it is secured in the proper position. A small symbol located on the Ring should be aligned with the Locked symbol located on the Housing (Fig. 95a). Fig.
WARNING: Prior to diving with the XR2, you must also read and understand the AERIS Dive Computer Safety & Reference Manual, Doc. No. 12-7203, which provides Important Warnings and Safety Recommendations as well as general product information.
ALTITUDE SAMPLING/COMPENSATION 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.
When returning to lower Altitudes, diving should not be conducted until the unit automatically clears of any residual nitrogen and oxygen loading and resets to operate at the new lower Altitude. WARNING: The XR2 will not sense ambient pressures or provide Altitude compensation when it is wet. DO NOT dive at any different Altitude until the unit shuts off and is reactivated at the new Altitude.
SPECIFICATIONS CAN BE USED AS Air Computer Nitrox Computer Digital Depth Gauge/Timer NO DECOMPRESSION MODEL Basis: Modified Haldanean Algorithm 12 tissue compartments Data Base: Diving Science and Technology (DSAT) - Rogers/ Powell Performance: Tissue compartment halftimes (mins.
SPECIFICATIONS (CONTINUED) OPERATIONAL MODES (continued) No Decompression Dive: Main 1 (Current Depth, Dive Time Remaining, Bar Graphs) Main 2 (Current Depth, Dive Time Remaining, Max Depth, Elapsed Dive Time, Bar Graphs) Main 3 (Current Depth, Dive Time Remaining, Temperature, Time of Day, Bar Graphs) Main 4 - only if a nitrox dive (Current Depth, Dive Time Remaining, Current PO2, Bar Graphs) Safety Stop - for dives deeper than 30 feet (9 meters) Digital Gauge Dive: Main - defaul
SPECIFICATIONS (CONTINUED) DISPLAY RANGE/RESOLUTION (continued) Numeric Displays: Range: Resolution: Surface Time Dive Log Surface Interval Time to Fly 1 minute, hours only after 9:59 1 minute, hours only after 9:59 1 minute Time to Desaturate Temperature 0:00 to 9:59 hr:min,10- to 23- hr 0:00 - 9:59 hr:min,10- to 23- hr 23:50 - 0:00 hr:min* (* starting 10 min after the dive) 23:50 (max) - 0:00 hr:min* (* starting 10 min.
SPECIFICATIONS (CONTINUED) BAR GRAPHS (continued) Ascent Rate Indicator: 60 feet (18 m) & Shallower segments 0 Normal Zone (Gray) 1 Normal Zone (Gray) 2 Normal Zone (Gray) 3 Caution Zone (Yellow) 4 Too Fast Zone (Red - flashing) 5 feet/min 0 to 10 11 to 15 16 to 20 21 to 25 26 to 30 > 30 Deeper than 60 feet (18 m) meters/min 0 to 3 3.5 to 4.5 5 to 6 6.5 to 7.5 8 to 9 >9 segments 0 1 2 3 4 5 feet/min 0 to 20 21 to 30 31 to 40 41 to 50 51 to 60 > 60 meters/min 0 to 6 6.5 to 9 9.5 to 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 (if Wet Activation is set ON) H2O graphic indicates Wet Contacts are bridged (unit must be dried pri
SPECIFICATIONS (CONTINUED) OPERATIONAL PERFORMANCE (continued) Operating Temperature: The XR2 will operate in almost any temperature diving environment in the world, between 32 °F and 140 °F (0 and 60 °C). At extremely low temperatures, the LCD may become sluggish, but this will not affect it's accuracy. If stored or transported in extremely low temperature areas (below freezing), you should warm the module and its battery with body heat before diving.
NOTES 98
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 99
AERIS 2002 Davis Street San Leandro, CA 94577 Tel: 510/346-0010 Fax: 510/346-0015 Web site: http://www.diveaeris.com E-mail: info2@diveaeris.com © 2002 Design, 2005 Doc. No.
