DECOMPRESSION MODEL ....................................................................................................................................... 5
FULL DISPLAY ............................................................................................................................................................ 6
FEATURES AND DISPLAYS............................................................................................. 7
CONTROL BUTTON ................................................................................................................................................... 8
BAR GRAPHS ............................................................................................................................................................. 9
Nitrogen Loading Bar Graph (NiBG) ...................................................................................................................... 9
Time Displays ....................................................................................................................................................... 11
Date Display ......................................................................................................................................................... 11
Temperature Display............................................................................................................................................. 11
POWER SUPPLY ...................................................................................................................................................... 12
DIVE TIME REMAINING ........................................................................................................................................... 14
SET MODE ................................................................................................................................................................ 20
PC INTERFACE ......................................................................................................................................................... 24
DIVE MODE BAR GRAPHS ...................................................................................................................................... 26
CONTROL OF DISPLAYS ......................................................................................................................................... 26
NO DECOMPRESSION DIVE MODE ....................................................................................................................... 27
USER SELECTED DIGITAL GAUGE MODE ............................................................................................................ 36
POST DIVE MODES ....................................................................................................... 37
POST DIVE SURFACE MODE .................................................................................................................................. 38
TRANSITION PERIOD .............................................................................................................................................. 38
AFTER THE TRANSITION PERIOD (THE FIRST 2 HOURS) .................................................................................. 39
Time to Fly / Desaturate ....................................................................................................................................... 39
AFTER THE FIRST 2 HOURS .................................................................................................................................. 43
GENERAL ....................................................................................................................... 45
CARE AND CLEANING ............................................................................................................................................. 46
INSPECTIONS AND SERVICE ................................................................................................................................. 47
SERVICE RECORD ................................................................................................................................................... 58
Pay special attention to items marked with this WARNING symbol.
4
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.
AERIS, the AERIS logo, XR1, and the XR1 logo are all registered and unregistered trademarks of AERIS.
Those Trademarks Registered are Registered in the U.S. Patent and Trademark Office. All rights are reserved.
PATENT NOTICE
U.S. Patents have been issued, or applied for, to protect the following design features:
Dive Time Remaining (U.S. Patent no. 4,586,136), Data Sensing and Processing Device (U.S. Patent no.
4,882,678), and Ascent Rate Indicator (U.S. Patent no. 5,156,055). User Setable Display (U.S. Patent no.
5,845,235) is owned by Suunto Oy (Finland).
DECOMPRESSION MODEL
The programs within the XR1 simulate the absorption of nitrogen into the body by using a mathematical
model. This model is merely a way to apply a limited set of data to a large range of experiences. The XR1
dive computer model is based upon the latest research and experiments in decompression theory. Still, using
the XR1, just as using the U.S. Navy (or other) No Decompression Tables, is no guarantee of avoiding decompression sickness, i.e. the bends. Every divers physiology is different, and can even vary from day to
day. No machine can predict how your body will react to a particular dive profile.
5
g
f
e
d
h
i
j
k
c
l
b
Components:
a. Control Button
b. Variable Ascent Rate Indicator
c. Nitrogen Loading Bar Graph
d. Icon - Max Depth (Log Mode)
e. Icon - Temperature
f. Icon - Dive Number
g. Icon - Max Depth (Dive Mode)
h. Icon - Descend Arrow
Icon - Decompression Ceiling
Icon - Ascend Arrow
i. Icon - Log Mode
j. Icon - Depth units
k. Icon - Time
g. Battery Status Indicator
n. Icon - Operating Mode
m
a
XR1 FULL LCD
6
WARNING: Prior to diving with the XR1, 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.
FEATURES and DISPLAYS
7
INTRODUCTION
Welcome to AERIS and thank you for choosing the XR1 !
It is extremely important that you read this Owner's Guide in sequence and understand it completely before attempting to use the
XR1.
Remember that technology is no substitute for common sense, and
a dive computer only provides the person using it with data, not the
knowledge to use it.
The XR1 has numerous features that are described throughout this
manual.
Fig. 1 - Control Button
8
RESPONSIBLE DIVER
Be a -
at all times.
R
R
E
E
S
V
P
I
O
D
N
E
S
L
I
B
CONTROL BUTTON
The Control Button (Fig. 1) allows you to select display options
and access specific information when you want to see it.
BAR GRAPHS
Nitrogen Bar Graph
The Nitrogen Bar Graph (Fig. 2a) represents tissue loading of nitrogen, showing your relative no decompression or decompression
status.
The Nitrogen Bar Graph monitors 12 different nitrogen compartments simultaneously and displays the one that is in control of your
dive.
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.
It is divided into a gray No Decompression (normal) zone, a yellow
Caution zone (also No Decompression), and a red Decompression
(danger) zone.
While you cannot provide a guarantee against the occurrence of decompression sickness, you may choose your own personal zone of
caution based upon age, physique, excessive weight, etc., to reduce
the statistical risk.
The Variable Ascent Rate Indicator (Fig. 3a) provides a visual representation of ascent speed (i.e., an ascent speedometer). Gray is a
'normal' rate, yellow a 'caution' rate, and red is 'Too Fast'. The segments of the VARI represent two sets of speeds which change at a
reference depth of 60 feet (18 meters). Refer to the chart for segment values.
WARNING: At depths greater than 60 feet (18 m),
ascent rates should not exceed 60 fpm (18 mpm).
At depths of 60 feet (18 m) and shallower, ascent
rates should not exceed 30 fpm (9 mpm).
INFORMATIONAL DISPLAYS
c
a
Fig. 3 - VARI & Depth
10
b
During a dive, the Current Depth display (Fig. 3b), indicates
Depths from 0 to 330 feet (99.9 meters) in increments of 1 foot (.1
meter). The Depth range is extended to 399 feet (120 meters)
when it is set to operate in Digital Gauge Mode.
By pressing the button, the Maximum Depth reached during that
dive will be displayed (Fig. 3c).
During a Decompression Dive, the required Ceiling Stop Depth is
displayed in the Max Depth position.
Depth Displays
Time Displays
Time displays are shown in hour:minute format (i.e., 1:16 represents 1 hour and 16 minutes, not 116 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).
The Main Time display has the largest digits of the display (Fig.
4a) A second time display (Fig. 4b) is located above it. Both displays are identified by clock icons.
Date Display
Date is displayed only to identify dive data while it is viewed in
the Log Mode. 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.
Temperature Display
Ambient Temperature is displayed in Surface Mode (Fig. 4c) and
Log Mode, and can be viewed on Main Display 3 while in a dive
mode (Fig. 5a). If the Temperature exceeds a value of '99', 2
dashes ( - - ) will be displayed until temperature decreases to '99'.
c
a
Fig. 4 - Time Displays &
Temperature (Surface)
a
Fig. 5 - Temperature
(dive mode)
b
11
POWER SUPPLY
The XR1 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.
When power is sufficient for normal unit operation (> 2.75 volts),
the full Battery icon will be displayed solid during Surface, Plan,
and Fly, and Desat modes (Fig. 6a).
When a Low Battery Condition is sensed (< 2.75 volts), the Indicator will only display the shell and lower segment as a Warning.
NOTE: When the icon indicates a Low Battery
Warning condition, the Battery should be replaced
prior to conducting dives.
Fig. 6 - Battery Indicator
12
a
(continued on page 11)
Low Battery Condition
Voltage level is checked upon activation and every 10 minutes during operation.
If a Low Battery Warning Condition exists (< 2.75 volts, > 2.50
volts), the Battery icon (shell and lower segment only) will be
displayed solid as previously described (Fig. 7a).
If the Battery is not changed and voltage continues to decrease
until a Low Battery Alarm Condition exists (< 2.50 volts), the
Battery icon (shell and lower segment only) will flash once per
second for 5 seconds (Fig. 8a) followed by shutdown of the unit.
If the button is not pressed to activate the unit prior to a dive,
and a Low Battery Alarm Condition exists (< 2.50 volts), the
Battery icon will appear flashing as a warning upon descent past
4 feet (1.2 meters). No other information will be displayed.
If the unit did not display the Low Battery icon 'prior to' entering
the Dive Mode, and a Low Battery Condition occurs during the
dive, there will be sufficient battery power to maintain unit operation for the remainder of 'that dive' only. The Battery icon
will appear as a warning upon surfacing when Surface Mode is
displayed.
When the Battery is removed, nitrogen calculations for repetitive
dives are reset to zero after 8 seconds. Also, settings such as Time
and Date must be reset. If a new battery can be inserted within that
8 seconds, the calculations and settings will be retained.
a
Fig. 7 - Low Battery Warning
a
Fig. 8 - Low Battery Alarm
13
DIVE TIME REMAINING (DTR)
One of the most important pieces of information on AERIS dive computers is the 'Dive Time Remaining (DTR) display'. The dive computer constantly monitors no decompression status.
No Deco Dive Time Remaining (DTR)
No Deco Dive Time Remaining (DTR) is the maximum amount of time that you can stay at your
present depth before entering a decompression situation. It is calculated based on the amount of
nitrogen absorbed by hypothetical tissue compartments. The rates each of these compartments absorb and release nitrogen is mathematically modeled and compared against a maximum allowable
nitrogen level. Whichever one is closest to this maximum level is the controlling compartment for
that depth. Its resulting value will be displayed numerically (Fig. 9a) along with the No Decompression Dive icon and graphically as the Nitrogen Bar Graph (Fig. 9b).
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
b
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. 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.
a
Fig. 9 - No Deco DTR
14
WARNINGS AND SAFETY RECOMMENDATIONS
It should not be considered that the capabilities built into the XR1 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 XR1 provides information based upon a personal dive profile, and therefore
must not be shared between divers. It is impossible for two divers to stay precisely together underwater, and your computer's dive profile tracking of previous dives will be pertinent to you only. Nitrogen and oxygen loading of a second user may be significantly different and swapping dive computers could lead
to inaccurate and dangerous predictions of decompression status.
NOTE: Each display represents unique pieces 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.
The Informational Displays are described in detail as the various operating
modes they appear in are presented throughout this manual.
15
NOTICE
WET ACTIVATION
The XR1 is configured with contacts that will automatically activate the unit when the space between the contacts is bridged by a conductive material (immersed in water).
The contacts are the pins of the Data Port and stem of the Push Button.
It is important that the Data Port and Button be kept clean and free of any contamination or debris
that could cause the unit to activate unnecessarily resulting in premature depletion of battery
power.
It is also important that they be kept clean to ensure that the unit will activate and enter dive mode
upon immersion and descent.
The Data Port and Button can be cleaned with fresh water and a soft bristle brush.
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.
16
WARNING: Prior to diving with the XR1, 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 AND SETUP
17
Fig. 10 - Diagnostic Mode
Fig. 11 - Serial Number
18
ACTIVATION
To Activate the XR1 - press and release the Button.
Upon manual activation, the unit will enter Diagnostic Mode
(Fig. 10), displaying all segments of the LCD as 8's, followed by
dashes, then a countdown from 9 to 0.
Diagnostic Mode checks the display and battery voltage to en-
sure that everything is within tolerance and functioning properly.
It will also check the ambient barometric pressure, and calibrate
its present Depth as zero. At elevations of 2,000 feet (610
meters) or higher, it will adjust its Depth readings and No Decompression Limits for that elevation.
WARNING: If it is manually activated at elevations
higher than 14,000 feet (4,270 meters), it will perform a diagnostic check followed by immediate
shutdown.
To view a screen that displays the unit's Serial Number and firmware revision level, hold the button depressed as the Diagnostic
countdown reaches 00. The Serial Number screen appears (Fig. 8)
as long as the button is depressed. Upon releasing the button, the
unit shuts Off. Press and release the button to reactivate the unit
and enter Surface Mode.
Wet Activation (only if set ON, a user setting)
The XR1 will also automatically activate by water contact. This is
accomplished by bridging the gap between contacts located on the
Button and Data Port on the side of the housing.
If no dive is made within 2 hours after activation, the unit will deactivate. If the wet contacts are still wet, it will reactivate.
SURFACE SEQUENCE
While on the surface, the unit will automatically scroll through a
Sequence of displays including -
SURFACE > FLY > SAT > PLAN
As the Surface Sequence is scrolling, you can use the button to access Log Mode and Set Mode.
SURFACE MODE
Surface Mode information includes (Fig. 12) -
Dive Number if the module is dry (0 if no dive made yet), or the
graphic H2O if the module is wet (Fig. 13)
Temperature (and degree icon and F or C graphic).
Time of Day (with clock icon).
Surface Interval (with flashing colon) and clock/wave icon.
Battery Status icon.
The Dive Planner (Fig. 14) provides a sequence of theoretical dive
times available for depths ranging from 30 feet (9 meters) to 190
feet (57 meters) in 10 foot (3 meter) increments.
No decompression times (limits), or NDLs, are only displayed for
depths where there is at least 3 minutes of theoretical dive time
available at the depth, taking into account a descent rate of 60 feet
(18 meters) per minute.
The Dive Planner should be reviewed prior to every dive to help
you plan your dive as required to avoid exceeding no decompression limits. For repetitive dives, it indicates adjusted dive times
that are available for the next dive, based on residual nitrogen following the last dive and surface interval.
WARNING: The available dive times provided by
the Dive Planner are only predictions. Depending
on cylinder size and air consumption rate you may
have less time available than indicated because of
those or other limitations.
SET MODE
After gaining access to Set Mode, settings can be made in sequence
one after the other, or you can access a specific item that you want
to set, bypassing others.
Scrolling Surface Sequence, you can set:
Units of Measure - Imperial or Metric
Hour Format - 12 or 24
Time of Day - Hour:Minute
Date - Year, Month, Day
Digital Gauge Mode - On or Off
Wet Activation - On or Off
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.
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 the Set
Units screen appears with the graphics FT and F (or M and C)
flashing (Fig. 15).
To change the setting for Units of Measure -
Press and release the Button momentarily to toggle between Im-
perial (FT and F) and Metric (M and C).
Press and hold the Button for 2 seconds to save the setting, re-
lease when the graphic Hour and 12 (or 24) appear flashing
(Fig. 16).
Fig. 15 - Set Units of Measure
Fig. 16 - Set Hour Format
21
22
Fig. 17 - Set Time
Fig. 18 - Set Date
To change the setting for Hour Format -
Press and release the Button momentarily to toggle between 12
and 24.
Press and hold the Button for 2 seconds to save the setting, re-
lease when AM (or PM) and the Time of Day appear with the
Hour value flashing (Fig. 17).
To change the setting for Time of Day -
Repeatedly press and release the Button momentarily 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, re-
lease when the Minute value flashes.
Repeatedly press and release the Button momentarily until the
correct value for Minute appears (:00 to :59). Do Not Hold the
Button depressed.
The Set Date screen appears with the graphic dAY and Year
value flashing (Fig. 18).
To change the setting for Date -
Repeatedly press and release the Button momentarily until the
correct value for Year appears (2005 to 2042). Do Not Hold the
Button depressed.
Press and hold the Button for 2 seconds to save the setting, re-
lease when the Month value flashes.
Repeatedly press and release the Button momentarily until the
correct value for Month appears (1 to 12). Do Not Hold the But-
ton depressed.
Press and hold the Button for 2 seconds to save the setting, re-
lease when the Day value flashes.
Repeatedly press and release the Button momentarily until the
correct value for Day appears (1 to 31). Do Not Hold the Button
depressed.
Press and hold the Button for 2 seconds to save the setting, re-
lease when the Set Gauge Mode screen appears with the graphic
GAU and OFF (or ON) flashing (Fig. 19).
Fig. 19 - Set Digital Gauge Mode
23
Fig. 20 - Set Wet Activation
Fig. 21 - PC Interface
24
To change the setting for Digital Gauge Mode -
Press and release the Button momentarily to toggle between
OFF and ON.
Press and hold the Button for 2 seconds to save the setting, re-
lease when the Set Wet Activation screen appears with the
graphics ACT, H2O, and ON (or OFF) flashing (Fig. 20).
To change the setting for Wet Activation -
Press and release the Button momentarily to toggle between ON
and OFF.
Press and hold the Button for 4 seconds to save the setting, re-
lease when the Surface Mode screen appears.
During the 4 seconds, a PC screen will appear (Fig. 21) and can
be bypassed.
PC INTERFACE
PC Interface is not a setting or user function. It is included in the
Set menu for access by the factory personnel when calibrating the
XR1 module prior to shipping.
WARNING: Prior to diving with the XR1, 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 MODES
25
a
b
Fig. 22 - NiBG & VARI
Fig. 23 - Ascent Too Fast
26
DIVE MODE BAR GRAPHS
As your depth and elapsed dive time increase, the Nitrogen Bar
Graph (NiBG) will fill with segments (gray toward red) to repre-
sent the absorption of nitrogen (Fig. 22a). While ascending to
shallower depths, the segments that have filled the Bar Graph will
begin to recede, offering a graphic representation of your multilevel diving capability.
The Variable Ascent Rate Indicator (VARI) shows how fast you
are Ascending (Fig. 22b). When you exceed an Ascent Rate of 60
fpm (18 mpm) if deeper than 60 feet (18 meters), or 30 fpm (9
mpm) if at or shallower than 60 feet (18 meters), it will enter the
red (Too Fast) zone and all segments will flash (Fig. 23) until your
Ascent Rate is slowed.
CONTROL OF DISPLAYS
During dive modes, multiple displays of information are available.
You can change from one display to another as often as desired by
momentarily (< 2 seconds) pressing and releasing the Button.
During No Decompression conditions, you can choose how much
information is displayed at a given time. The Main Display chosen
will remain on the screen until you press the Button to change to
another Main Display.
During conditions in which cautionary type information is displayed (e.g., Decompression, etc.), there is one Main (Default)
Display of important information relevant to the specific condition.
You can then access Alternate Displays, that will automatically
revert to the Main Display after 3 seconds.
NO DECOMPRESSION DIVE MODE
The XR1 will enter the No Decompression Dive Mode when you
descend to 5 feet (1.5 meters).
Fig. 24 - No Deco Main 1
No Decompression - Main Display 1 (Fig. 24)
Information includes Current Depth (and FT or M icon), Dive
Time Remaining (and wave/clock/profile Mode icon), and applicable Bar Graphs.
press and release the Button to change to Main Display 2.
No Decompression - Main Display 2 (Fig. 25)
Information includes Current Depth (and FT or M icon), Maximum
Depth for that dive (and MAX icon), Elapsed Dive Time (and
wave/clock icon), Dive Time Remaining (and wave/clock/profile
Mode icon), and applicable Bar Graphs.
press and release the Button to change to Main Display 3.
No Deco
Mode icon
Fig. 25 - No Deco Main 2
27
Fig. 26 - No Deco Main 3
Fig. 27 - No Deco
Safety Stop
28
No Decompression - Main Display 3 (Fig. 26)
Information includes Current Depth (and FT or M icon), Temperature (and degree icon with graphic F or C), Time of Day (and clock
icon), Dive Time Remaining (and wave/clock/profile Mode icon),
and applicable Bar Graphs.
Press and release the Button to view Main Display 1.
No Deco - SAFETY STOP (Fig. 27)
Upon ascending to 20 feet (6 meters) on any No Decompression
dive in which Depth exceeded 30 feet (9 meters), 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).
Information includes Current Depth (and FT or M icon), Stop
Depth as 15 (FT) or 4.5 (M), Stop Bar icon, Countdown Timer
(and clock icon), Dive Time Remaining (and wave/clock/profile
Mode icon), and applicable Bar Graphs.
The Safety Stop will be displayed until the countdown times out, or
you descend below 30 feet (10 meters), or you surface.
There is no Penalty if you surface prior to completing the Safety
Stop.
DECOMPRESSION DIVE MODE
The XR1 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.
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. 28a) and Decompress for
the Stop Time indicated (Fig. 28b).
The UP Arrow and Stop Bar will flash if you are more than 10
feet (3 meters) deeper than the Required Ceiling Depth.
Once within 10 feet (3 meters) of, and below, the Required Ceil-
ing Depth, both Arrows and the Stop Bar appear solid.
Deco - Main Display
The amount of decompression Credit time that you receive is dependent on Depth, with slightly less Credit given the deeper you
are below the Stop Depth required.
You should stay slightly deeper than the Required Stop Depth indicated until the next shallower Stop Depth appears. Then, you can
slowly ascend to, but not shallower than that indicated ceiling Stop
Depth.
a
Fig. 28 - Entry into Deco
Deco
Mode icon
b
29
a
Fig. 29 - Deco Main
Fig. 30 - Deco Alternate 1
30
DECO Stop Main (Default) Display information includes (Fig.
29) - Current Depth (and FT or M icon), Required Ceiling Stop
Depth and Time (and clock icon), Total Ascent Time (and wave/
clock/deco bar/profile Mode icon), and applicable Bar Graphs.
Total Ascent Time (Fig. 29a) includes Stop Times required at all
Ceilings and vertical Ascent Time calculated at 60 feet (18 meters)
per minute below 60 feet (18 meters) and 30 feet (9 meters) per
minute at and above 60 feet (18 meters).
To view Alternate Displays of information during Deco situations,
momentarily (< 2 seconds) press and release the button -
1 time to view Alternate Display 1
2 times to view Alternate Display 2
Alternate Displays will revert to the Main Display after 3 seconds.
DECO Stop Alternate Display 1 (Fig. 30)
Information includes - Current Depth (and FT or M icon), Max
Depth for that dive (and MAX icon), Elapsed Dive Time (and
wave/clock icon), Total Ascent Time (and wave/clock/deco bar/
profile Mode icon), and applicable bar graphs.
Press and release the Button to view Alternate Display 2.
DECO Stop Alternate Display 2 (Fig. 31)
Information includes - Current Depth (and FT or M icon), Temperature (and degree icon with F or C graphic, Time of Day (and
clock icon), Total Ascent Time (and wave/clock/deco bar/profile
Mode icon), and applicable Bar Graphs.
Press the Button to return to the Main Display.
VIOLATION MODES
Violation Modes that the XR1 can enter are termed Conditional,
Delayed, and Immediate. Permanent Violation Mode and Violation Gauge Mode are continuations of these.
While in Violation Modes, Alternate Displays similar to those
described for Deco Mode can be accessed using the Button.
They will revert to the Main Display after 3 seconds.
Conditional Violation Mode
The XR1 will enter a Conditional Violation Mode if you Ascend
to a depth shallower (Fig. 32a) than the Required Decompression Ceiling Stop Depth displayed (Fig. 32b).
The Down Arrow, Stop Bar, and the Total Ascent Time display
will flash until you descend below the Required Stop Depth. Also
displayed will be Current Depth and applicable Bar Graphs.
Fig. 31 - Deco Alternate 2
b
Fig. 32 - Conditional Violation
a
31
Fig. 33 - Delay Violation 1
32
Flashing
If you descend below the required decompression ceiling before 5
minutes have elapsed, the unit will continue to function in Decompression Dive Mode. In this case, no off-gassing credit will be
given, and for each minute you were above the ceiling 11/2 minutes
of Penalty Time will be added to Required Stop Time.
The added Penalty (decompression) Time will then have to be
worked off first, before obtaining off-gassing Credit.
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 operation will revert to the No Decompression Dive Mode.
Delayed Violation 1
If you remain above the Required Ceiling Stop Depth for 'more
than 5 minutes', the full Nitrogen Bar Graph and Total Ascent
Time display will flash (Fig. 33) until you descend below the Required Stop Depth. This is a continuation of Conditional Violation.
Delayed Violation 2
The XR1 cannot calculate decompression times for Stop Depths
much greater than 60 FT (18 M) and offers no indication of how
much time spent underwater would result in the need for a greater
Stop Depth.
If your Decompression obligation requires a Stop Depth 'between' 60 feet (18 meters) and 70 feet (21 meters), the full Nitro-
gen Bar Graph will flash (Fig. 34). Total Ascent Time will be displayed.
You must Ascend to just deeper than, staying as close as possible
to, 60 FT (18 M) without causing Total Ascent Time to flash.
When the Required Stop Depth indicates 50 FT (15 M), etc., you
can ascend to those depths and continue decompressing.
Delayed Violation 3
If you descend deeper than 330 feet/99.5 meters, or 399 feet/120
meters when operating in Digital Gauge Mode, the Up Arrow
will be displayed, the accumulated Nitrogen Bar Graph segments
will flash, and the Current Depth and Max Depth displays will only
indicate 3 dashes (- - -) (Fig. 35).
Upon ascending above 330 feet/99.5 meters, or 399 feet/120
meters when operating in Digital Gauge Mode, 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.
Flashing
Fig. 34 - Delay Violation 2
Flashing
Fig. 35 - Delay Violation 3
33
Immediate Violation and Violation Gauge Mode
During a Dive, if a Stop Depth greater than 70 FT (21 M) is required, an Immediate Violation Mode will be entered.
This situation would be preceded by entering Delayed Violation 2,
previously described.
Flashing
Fig. 36 - Violation Gauge Mode
(underwater Main)
Flashing
Fig. 37 - Violation Gauge Mode
(underwater Alternate)
34
The XR1 would then operate with limited functions in Violation
Gauge Mode during the remainder of that dive and for 24 hours
after surfacing.
Violation Gauge Mode turns the XR1 into a digital instrument
without any decompression functions.
Only Current Depth, Max Depth, Elapsed Dive Time, and the
Variable Ascent Rate Indicator will be displayed (Fig. 33). The
full Nitrogen Bar Graph will flash as a warning of this condition.
Temperature and Time of Day can be viewed as an Alternate Display (Fig. 37) when the button is pressed.
The XR1 will also enter an Immediate Violation Mode 5 minutes
after reaching the surface from a dive in which a Delayed Violation occurred.
On the surface, Violation Gauge Mode displays the Dive Number,
Temperature, Time of Day, Surface Interval, and the full Nitrogen
Bar Graph flashing (Fig. 38). It does not provide the Dive Planner
or the Time to Fly feature.
The countdown timer that appears with a single dash during the
Surface Sequence (Fig. 39) is only provided to inform you of the
time remaining before Normal operation can resume with full dive
computer features and functions.
This condition is considered a Permanent Violation, and in the
event that a dive is made during that 24 hour period, a full 24
hour surface interval must then be served before all functions
are restored.
Flashing
Fig. 38 - Violation Gauge Mode
(on surface)
Fig. 39 - Violation Gauge Mode
(Countdown to Normal)
35
Fig. 40 - Digital Gauge Dive
Fig. 40 - Digital Gauge Dive
Main
Alternate
36
USER SELECTED DIGITAL GAUGE MODE
When Digital Gauge Mode is set for ON, the XR1 will operate as a
Digital Depth Gauge/Timer without performing nitrogen calculations.
While in this mode, the range of the Current and Maximum Depth
displays are extended to 399 feet (120 meters) to accommodate activities involving diving with advanced breathing gas mixtures or
free diving beyond the normal depth limit of the unit.
There is a Main Display providing Current Depth, Max depth, and
Elapsed Dive Time (Fig. 40).
Temperature and Time of Day can be viewed for 3 seconds as an
Alternate Display (Fig. 41) when the button is pressed and released.
WARNING: Prior to diving with the XR1, 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 MODES
37
Flashing
Fig. 41 - Transition Period
Fig. 42 - Log Preview
38
Flashing
POST DIVE SURFACE MODE
When you ascend to 3 feet (1 meter) or shallower, the unit 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. 41):
Number of that dive (during that activation period)
Temperature (and icon)
Time of Day (and icon)
Surface Interval time (colon flashing) and icon (flashing)
Nitrogen Bar Graph (indicating current nitrogen loading)
During the Transition Period, Log Mode can be accessed. No
other modes (e.g., Fly, Plan, Set) are displayed or accessible.
To view that dive's Log -
Press the Button to view the Preview screen (Fig. 42).
Press the Button again to view the Data screen
Press the Button again to return to Surface Mode.
The unit will revert to Surface Mode after 2 minutes if the but-
ton is not pressed.
Refer to page 42 for a full description of the Log Mode displays.
Log Data will not be stored in the unit's memory until the 10
minute Transition Period on the surface is completed.
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. Time spent at
the surface will not be added as Dive Time.
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 the Surface Sequence, scrolling
through Surface Mode > Time to Fly > Time to Desaturate > Dive
Planner. You will have full access to Log Mode and Set Mode.
Time to Fly/Desaturate
The Time to Fly and Desat Timers begin counting down 10 minutes after surfacing from a dive (after the Transition Period).
The FLY countdown (Fig. 43) always begins at 23:50 (hr:min) and
the Desat countdown (Fig. 44) at 23:50 (maximum).
Fig. 43 - Time to Fly
Fig. 44 - Time to Desaturate
39
Fig. 45 - Countdown
(after a Violation dive)
Fig. 46 - Adjusted NDLs
40
If a Violation occurred during the dive a single dash ( - ) will appear instead of the letters FLY (Fig. 45). DeSat time will not be
displayed.
The Time to Fly counter is provided to assist you with deciding
when enough surface time has elapsed to fly (or travel to higher elevations).
After a surface interval of 12 hours, you may choose to fly (or
travel to higher elevations), provided that your dive profile(s)
did not enter decompression.
If your diving involved decompression or a repetitive, multi day
profile, it is strongly recommended that you wait a full 24 hours
after your last dive to add a greater degree of protection.
Dive Planner
After a dive, the Dive Planner provides 'adjusted' No Decompression Limits (Fig. 46) based on residual nitrogen calculated to be remaining from that dive and previous dives in the same series.
Log Mode
The XR1 will store up to 12 dives in its Log for viewing.
Each dive has 2 Log screens. The first is the Preview (identifier)
and the second displays that Dive's Data.
Once the Log is full (12 dives), each subsequent dive will then
overwrite the oldest dive stored in the Log. It is therefore suggested that you transfer the Log's data to your log book at the end
of each day of diving.
Log data will not be lost when the battery is removed/replaced,
however, factory service and calibration will delete the data.
The first dive conducted each time the unit is Activated will be #1,
therefore there may be multiple #1 dives in the Log.
Dives are displayed in a reverse sequence that starts with the dive
most recently recorded, back to the oldest one stored. The most recent dive will always be the first shown in the sequence.
To access Log Mode -
Press and release the Button momentarily (< 2 seconds) while
the unit is scrolling through the Surface Sequence.
The Preview screen (Dive Identifier) of the most recent dive
conducted will appear displaying (Fig. 47) Dive Number (for that activation period) and # icon
Log Mode icon
Date of the Dive (Month.Day or Day.Month if metric)
Time of Day (that the dive started) and clock icon
Press and release the Button (< 2 sec) to view the Data Screen.
Fig. 47 - Log Preview
41
Fig. 48 - Log (Dive Data)
42
Max segment
Flashing
Dive Data (the second Log screen) includes (Fig. 42) -
Maximum Depth - reached during the dive (and MAX and FT or
M icons)
Log Mode icon
Temperature - minimum during the dive (and degree icon with
graphic F or C)
Surface Interval - prior to that dive (and clock/wave icon)
Elapsed Dive Time (and wave/clock 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. Also, the segment that
reflects the maximum loading during the dive will appear flash-
ing.
To access the Preview screen of the previous dive's Log, press and
release the Button momentarily (< 2 sec).
To return to the Surface Sequence at any time while in Log Mode,
press the Button for 2 seconds.
The unit will automatically revert to the Surface Sequence after 2
minutes if the Button is not pressed to view another Log Screen.
AFTER THE FIRST 2 HOURS
Two hours after the last dive, the Surface Sequence will no longer
be displayed. The Time to Fly and Time to Desaturate countdown
screens will be displayed alternately for 3 seconds each until they
count down to 0:00 or another dive is made.
If the Wet Activation Contacts are wet, the graphic H2O will appear on the displays (Figs. 49/50).
To access other modes or enter settings -
Press the Button to reactivate the Surface Sequence.
The unit will again revert to the Time to Fly/Desaturate count-
downs after 2 hours, if the Button is not pressed.
The unit will shutdown when the Fly countdown reaches :00. If
the Wet Activation Contacts are wet, the unit will reactivate and
scroll through the Surface Sequence for another 2 hours then shutdown again.
Fig. 49 - Time to Fly
(activation contacts wet)
Fig. 50 - Time to Desaturrate
(activation contacts wet)
43
Fig. 51 - Reset (Clear)
44
RESET FEATURE
The XR1 is configured with a RESET feature that allows data to be
cleared, including Nitrogen calculations 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 or death.
Reset Procedure
While the Surface Sequence is scrolling, press and release the
button to access the Log Mode's first Preview screen.
Press and release the button again to access the Data screen.
Press the button for more than 4 seconds while the Data screen
is displayed to access the Reset screen. The graphics CLR and
iD appear with the Key Code 0101, the first 2 digits flashing
(Fig. 51).
If necessary to change the first 2 digits, press and release the
button repeatedly to advance to the correct number.
Press the button for 2 seconds to save the first digits and ad-
vance to the second digits, flashing.
If necessary to change the second 2 digits, press and release the
button repeatedly to advance to the correct number.
Once the proper Key Code 0101 has been entered, pressing the
button for 2 seconds will shut down the unit (i.e., resetting it). If
an incorrect Key Code number has been entered, the unit will re-
vert to the Surface Sequence, resuming previous operation(s).
WARNING: Prior to diving with the XR1, 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.
GENERAL
45
a
Fig. 52 - Case Back
46
CARE AND CLEANING
Protect your XR1 from shock, excessive temperatures, chemical
attack, and tampering. Protect the Lens against scratches with an
Lens Guard/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 XR1 in fresh water at the end of each day of
diving, and check to ensure that the areas around the Depth Sen-
sor (Fig. 52a), PC Interface Data Port (Fig. 52b), and Buttons
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 run-
b
ning water and towel dry before storing.
Transport your unit cool, dry, and protected.
WARNING: Never force any object through any
slots or holes of the Housing. Doing so may damage the depth sensor, possibly resulting in erroneous depth and/or dive time remaining displays.
WARNING: If a Low Battery Condition is indicated prior to a dive, DO NOT attempt to dive with the XR1 until the Battery is replaced.
INSPECTIONS AND SERVICE
Your XR1 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).
AERIS recommends that you continue to have this inspection performed every year to ensure it is
working properly.
The costs of annual inspections are not covered under the terms of the 2 year limited warranty.
WARNING: If you are in doubt about the accuracy of your XR 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 XR1 if it is not pressure tested properly. Ensure
that the Dealer adheres to the following warning.
WARNING: Ensure that the XR1 is never pressure tested in an air environment. Doing so may damage the depth sensor, possibly resulting in erroneous depth or time readings.
47
To Obtain Service
Take you XR1 to an Authorized AERIS Dealer or send it to the nearest AERIS Regional Distributor Facility.
To return your XR1 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.
Include a legible note stating specific reason for return, your name, address, daytime phone
number, serial number, and a copy of your original sales receipt and Warranty Registration
Card.
Send freight prepaid and insured using a traceable method to the nearest AERIS Regional Ser-
vice Facility, or to AERIS.
Non-warranty service must also be prepaid (call for an estimate). COD is not accepted.
If you have any questions regarding service, call AERIS Customer Service at (510) 346-0010, 8
to 5 PST, or E-mail them to info2@diveaeris.com.
CAUTION: The procedure that follows must be closely adhered to. Damage
due to improper Battery replacement is not covered by the limited 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.
48
To prevent formation of moisture in the Battery Compartment, it is
recommended that the Battery be changed in an environment
equivalent to the local outdoor temperature and humidity (e.g., do
not change the Battery in an air conditioned environment, then take
it outside during a hot sunny day).
Battery Hatch Removal
Locate the Battery Compartment on the back of the Module.
While applying steady inward pressure on the center of the Bat-
tery Hatch, rotate the Hatch Retaining Ring 10 degrees clockwise by pressing against the upper tab of the Retaining Ring
with a small blade screwdriver (Fig. 53).
Lift the Hatch Ring up and away from the Housing, or turn the
Module over to allow the Ring to drop out into your hand.
Remove the Battery Hatch.
WARNING: If damage, moisture, or corrosion is
found, it is recommended that you return your XR1
to an Authorized AERIS Dealer, and DO NOT attempt to use it until it has received factory prescribed service.
NOTE: If the old Battery can be removed and the
new one inserted within 8 seconds, nitrogen calculations and settings, will be retained for repetitive dives.
Fig. 53 - Retaining Ring
49
Battery Removal
Remove the Retaining Bar located across the lower portion of
the Battery (Fig. 54a).
Remove the Hatch O-ring. DO NOT use tools
Using care not to damage the Battery Contacts (Fig. 54b/c), slide
the Battery up and out 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.
Closely check all of the sealing surfaces for any signs of damage
that might impair proper sealing.
Inspect the Button, Lens, and Housing to ensure they are not
cracked or damaged.
b
If it is necessary to clean the Battery Compartment, flush it and
all components with a solution of 50% white vinegar and 50%
fresh water.
Rinse with fresh water, and allow to dry overnight, or blow dry
with a hair dryer (set at 'no heat').
a
Fig. 54 - Hatch Removed
50
c
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. 55).
Orient the Retaining Bar across the lower portion of the Battery
and carefully push it down into position (Fig. 56).
Battery Hatch and Hatch Retaining Ring Installation
Replace the Hatch O-ring with a new one which must be a genu-
ine Oceanic part that can be purchased from an Authorized Oceanic Dealer. Use of any other O-ring will void the warranty.
Lightly lubricate the new Hatch O-ring with silicone grease and
place it on the inner rim of the Battery Hatch (Fig. 57). Ensure
that it is evenly seated.
Slide the Hatch Retaining Ring, top portion first (small open-
ing), onto your thumb.
Carefully place the Battery Hatch (with O-ring) into position on
the rim of the Battery Compartment, then press it evenly and
completely down into place with your same thumb.
Maintain the Battery Hatch securely in place and, using your
other hand, slide the Retaining Ring down off your thumb and
into position around the Battery Compartment.
The tabs on the Retaining Ring fit down into the two slots lo-
cated at the 2 and 8 o'clock positions.
Fig. 55 - Inserting Battery
Fig. 56 -Inserting Retaining Bar
Fig. 57 -O-Ring Orientation
51
Fig. 58 -Engaging Retaining Ring
da
c
b
a
Fig. 59 -Retaining Ring Tightened
52
Using your fingers, turn the Ring counter clockwise 5 degrees
until the tabs engage (Fig. 58), then tighten it 5 more degrees by
turning it counter clockwise with the aide of a small blade
screwdriver (Fig. 59).
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. 59a)
Inspection
Activate the unit and watch carefully as it performs a full diag-
nostic and battery check, and enters Surface Mode.
Observe the LCD display to ensure it is consistently clear and
sharp in contrast throughout the screen.
WARNING: If any portions of the display are missing or appear dim, or if a Low Battery condition is
indicated, return your XR1 to an Authorized AERIS
Dealer for a complete evaluation before attempting
to use it.
ALTITUDE SAMPLING/COMPENSATION
Atmospheric pressure decreases as altitude increases above sea level. Weather systems and ambient temperature also affect barometric pressures. Consequently, depth reading instruments that do
not compensate for the decrease in pressure indicate depth readings shallower than the depth they
are actually at.
The XR1 automatically compensates for decreased ambient pressure when activated at high altitudes up to 14,000 feet (4,270 meters). Its program contains a high altitude algorithm that reduces
no decompression and oxygen exposure limits to add a larger zone of caution.
The XR1 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 limits at additional intervals of 1,000 feet
(305 meters). Therefore, 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 XR1 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. If the unit is activated at
elevations higher than 14,000 feet (4,270 meters), it will perform a diagnostic
check followed by immediate shutdown.
ACCESSORIES (optional items available from your Authorized AERIS Dealer):
faster than 60 minutes
Tissue compartments tracked up to 24 hours after
last dive
Decompression Capabilities (stop ceilings):
10, 20, 30, 40, 50, and 60 feet
(3, 6, 9, 12, 15, and 18 meters)
Altitude Algorithm:
Based on NOAA tables
54
OPERATIONAL MODES (SURFACE)
Activation/Diagnostic
Serial Number
Surface
Dive Planner
Time to Fly Countdown
Time to Desaturate Countdown
Dive Log (Preview, Data)
Clear (Reset)
Set Mode:
Units of Measure (Imperial / Metric)
Hour Format (12 / 24)
Time (Hour, Minute)
Date (Year, Month, Day)
Digital Gauge Mode (On / Off)
Wet Activation (On / Off)
OPERATIONAL MODES (DIVE)
No Decompression Dive:
Main 1, 2, or 3
Safety Stop