Oceanic Personal Dive Computer Veo 100Nx User manual

Veo 100Nx
Personal Dive Computer
Operating Manual

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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 Oceanic / 2002 Design.
Veo 100Nx Operating Manual, Doc. No. 12-2725
© 2002 Design, 2006
San Leandro, CA USA 94577
TRADEMARK NOTICE
Oceanic, the Oceanic logo, Veo 100Nx, and the Veo 100Nx logo are all registered and unregistered
trademarks of Oceanic. 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 Variable 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 Veo 100Nx 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 Veo 100Nx dive computer model is based upon the latest research and experiments
in decompression theory. Still, using the Veo 100Nx, just as using the U.S. Navy (or
other) No Decompression Tables, is no guarantee of avoiding decompression sick-
ness, i.e. the bends. Every divers 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.

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CONTENTS
NOTICES ..................................................................................................................................................................... 2
FULL LCD .................................................................................................................................................................... 6
FEATURES AND DISPLAYS............................................................................................. 7
INTRODUCTION .......................................................................................................................................................... 8
CONTROL BUTTON ................................................................................................................................................... 8
BAR GRAPHS ............................................................................................................................................................. 9
Tissue Loading Bar Graph (TLBG) ......................................................................................................................... 9
Oxygen Bar Graph (O2BG) .................................................................................................................................. 10
Variable As ent Rate Indi ator (VARI) .................................................................................................................. 10
ALPHA / NUMERIC DISPLAYS ................................................................................................................................. 11
Depth Displays ...................................................................................................................................................... 11
Time Displays ....................................................................................................................................................... 12
Temperature Display............................................................................................................................................. 12
POWER SUPPLY ...................................................................................................................................................... 13
Battery Indi ator ................................................................................................................................................... 13
Low Battery Condition .......................................................................................................................................... 13
FO2 MODE ................................................................................................................................................................ 15
FO2 50% Default .................................................................................................................................................. 16
ACTIVATION AND SETUP .............................................................................................. 17
ACTIVATION .............................................................................................................................................................. 18
Wet Conta t A tivation ......................................................................................................................................... 19
SURFACE SE UENCE ............................................................................................................................................. 19
SURFACE MODE ...................................................................................................................................................... 19

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CONTENTS (continue )
SET MODE ................................................................................................................................................................ 20
Set Mode A ess and Timing ............................................................................................................................... 20
TO SET FO2 ......................................................................................................................................................... 21
TO SET WET ACTIVATION ................................................................................................................................. 22
TO SET UNITS OF MEASURE ............................................................................................................................ 23
TO SET HOUR FORMAT ..................................................................................................................................... 24
TO SET TIME ....................................................................................................................................................... 25
TO SET PO2 ALARM ........................................................................................................................................... 26
TO SET FO2 50% DEFAULT ............................................................................................................................... 27
SUMMARY OF PRE DIVE SETUP ............................................................................................................................ 28
PLAN AND DIVE MODES ............................................................................................... 29
PRE DIVE PLANNING SE UENCETM ...................................................................................................................... 30
TLBG (TISSUE LOADING BAR GRAPH) ................................................................................................................ 32
O2BG (OXYGEN ACCUMULATION BAR GRAPH) ................................................................................................. 32
VARI (VARIABLE ASCENT RATE INDICATOR) ....................................................................................................... 32
CONTROL OF DISPLAYS ......................................................................................................................................... 33
NO DECOMPRESSION DIVE MODE ....................................................................................................................... 33
No De o Dive Mode Safety Stop .......................................................................................................................... 35
DECOMPRESSION DIVE MODE .............................................................................................................................. 36
VIOLATION MODES .................................................................................................................................................. 39
Conditional Violation Mode ................................................................................................................................... 39
Delayed Violation Modes ...................................................................................................................................... 40
Immediate Violation and Violation Gauge Mode .................................................................................................. 41
HIGH PO2 .................................................................................................................................................................. 43
HIGH OXYGEN ACCUMULATION ............................................................................................................................ 44

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CONTENTS (continue )
POST DIVE MODES ....................................................................................................... 45
POST DIVE SURFACE MODE .................................................................................................................................. 46
TRANSITION PERIOD .............................................................................................................................................. 46
AFTER THE TRANSITION PERIOD (THE FIRST 2 HOURS) .................................................................................. 47
Time to Fly/Desaturate ......................................................................................................................................... 47
Pre Dive Planning Sequen e ............................................................................................................................... 48
Log Mode .............................................................................................................................................................. 49
AFTER THE FIRST 2 HOURS .................................................................................................................................. 51
WET CONTACTS ....................................................................................................................................................... 52
RESET (CLEAR) FEATURE ...................................................................................................................................... 53
GENERAL ....................................................................................................................... 55
CARE AND CLEANING ............................................................................................................................................. 56
INSPECTIONS AND SERVICE ................................................................................................................................. 56
MODULE REMOVAL FROM BOOT .......................................................................................................................... 58
BATTERY REPLACEMENT ...................................................................................................................................... 58
RETURNING THE MODULE TO BOOT ................................................................................................................... 62
ALTITUDE COMPENSATION .................................................................................................................................... 63
SPECIFICATIONS ..................................................................................................................................................... 64
NOTES ....................................................................................................................................................................... 69
OCEANIC WORLD WIDE ......................................................................................................................................... 70
SERVICE RECORD ................................................................................................................................................... 71
Pay special attention to items marked
with this Warning symbol.

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LCD DISPLAY
Components:
a. I on - Operating Mode
b. I on - Des end Arrow
I on - De o Ceiling Stop Bar
I on - As end Arrow
. Graphi - Maximum PO2
d. Tissue Loading Bar Graph
e. Graphi - Maximum Depth
f. I on - Log Mode
g. I on - Dive No.
h. I on - Temperature
i. Graphi - Depth
j. Variable As ent Rate Indi ator
k. Graphi - As ent Too Fast
l. I on - Time
m. Battery Indi ator
n. O2 Bar Graph
a
b
c
d
e
f
g
h
m
n
i
j
k
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FEATURES and DISPLAYS
WARNING: Prior to iving with the Veo 100Nx, you must also
rea an un erstan the Oceanic Dive Computer Safety an
Reference Manual, Doc. No. 12-2262, which provi es Important
Warnings an Safety Recommen ations as well as general
pro uct information.

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INTRODUCTION
Welcome to Oceanic and thank you for choosing the Veo
100Nx !
It is extremely important that you read this Operating Manual in
sequence and understand it completely before attempting to use
the Veo 100Nx.
It is equally important that you read the Oceanic Dive Computer
Safety and Reference Manual (Doc. No. 12-2262) provided
with your Veo 100Nx. It contains information that you must
become familiar with prior to diving with your Veo 100Nx.
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.
CONTROL BUTTON
The Control Button allows you to select display options and
access specific information when you want to see it. It is also
used to enter settings.
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Be a - RESPONSIBLE DIVER at all times.

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BAR GRAPHS
Tissue Loa ing Bar Graph (TLBG)
The Tissue Loading Bar Graph (Fig. 1a) represents tissue loading
of nitrogen, showing your relative no decompression or decom-
pression status. As your depth and elapsed dive time increase,
segments will add to the Graph, and as you ascend to shallower
depths, the Bar Graph will begin to recede, indicating that
additional no decompression time is allowed for multilevel
diving.
The Tissue Loading Bar Graph monitors 12 different nitrogen
compartments simultaneously and displays the one that is in
control of your dive. It is divided into a No Decompression
(normal) zone, a Caution zone (also No Decompression), and a
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.
NOTE: Displays associate with oxygen an the O2
Bar Graph will only appear if FO2 has been set at a
value other than 'Air' (e.g., a numerical value).
Fig. 1 - TLBG
a

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Oxygen Accumulation Bar Graph (O2BG)
The O2 Bar Graph (Fig. 2a) represents oxygen loading, show-
ing the maximum of either per dive accumulated oxygen, or 24
hour period accumulated oxygen.
As your oxygen exposure (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 for that dive and 24 hour period.
Variable Ascent Rate In icator (VARI)
The Variable Ascent Rate Indicator (Fig. 2b) provides a visual
representation of ascent speed (i.e., an ascent speedometer).
The segments of the Variable Ascent Rate Indicator represent
two sets of speeds which change at a reference Depth of 60 FT
(18 M). Refer to the chart for segment values.
WARNING: At epths greater than 60 FT (18 M),
ascent rates shoul not excee 60 feet per minute
(18 meters per minute). At epths of 60 FT (18 M)
an shallower, ascent rates shoul not excee 30
feet per minute (9 meters per minute).
Fig. 2 - O2BG and VARI
VARI
Deeper than 60 FT (18 M)
Segments Ascent Rate =
Displayed FPM MPM
0 0-20 0 - 6
1 21-50 6.5-15
2 51-60 15.5-18
3 60 18
60 FT (18 M) & Shallower
Segments Ascent Rate =
Displayed FPM MPM
0 0-10 0 - 3
1 11-25 3.5-7.5
2 26-30 8-9
3 309
a
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ALPHA / NUMERIC 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 mis-
understanding that could result in error.
Depth Displays
During a dive, the Current Depth display (Fig. 3a), indicates
depths from 0 to 330 FT (99.9 M) in 1 FT (0.1 M) increments.
By accessing alternate Main Dive Displays, the Maximum
Depth reached during that dive will be displayed in the center/
left portion of the display (Fig. 4a).
During a Decompression Dive, the required Ceiling Stop
Depth is displayed in the center of the screen. Maximum Depth
can then be viewed by pressing the button.
Fig. 4 - MAX DEPTH
a
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Fig. 3 - CURRENT DEPTH

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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 is located in the lower portion of the
display (Fig. 5a) and a second time display (Fig. 5b) is
located in the center/right. Both displays are identified by a
clock icon.
 Time of Day can be set for 12 hour format (Am/Pm) or 24
hour format.
Temperature Display
Ambient Temperature is displayed in the center/left portion
of the screen (Fig. 6a) while in the Surface Mode and Log
Mode, and can be viewed as part of an Alternate Display when
the button is pressed while in a dive mode.
NOTE: The Informational Displays are escribe in
etail as the various operating mo es they appear in
are presente throughout this manual.
Fig. 5 - TIME
Fig. 6 - TEMPERATURE
a
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POWER SUPPLY
The Veo 100Nx utilizes one (1) type CR 2450 Lithium 3 volt cell
that should provide 300 hours of continuous, 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 In icator
A Battery Indicator provides an indication of battery condition.
When power is sufficient for normal unit operation, the Indicator
will be displayed during Surface Mode (Fig. 7a). The Indicator
will not be displayed during Dive Mode(s).
Low Battery Con ition
Voltage level is checked upon activation and every (1) minute
during operation on the surface.
 When 75 % of the Rated Power has been consumed, the
lower bar of the Battery Indicator (only segment) will be
displayed, and the outline of the Indicator will flash once per
second (Fig. 8) as a warning that the Battery is to be re-
placed prior to conducting any further dives.
Fig. 8 - LOW BATTERY
Fig. 7 - BATTERY ICON
a

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 Upon decreasing to a voltage level that will no longer sustain
proper operation, the Indicator will flash 5 times followed by
shutdown of the unit.
 If a Low Battery Condition exists when the unit is activated
(by pressing the button), the graphic bAT and the Battery
Indicator will appear flashing for 5 seconds 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 Battery Indicator will
appear flashing as a warning upon descent to 5 FT (1.5 M).
No other information will be displayed.
 If the unit did not display a Low Battery Condition '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'. The
Battery Indicator will then appear after the dive upon entry
into Surface Mode.
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FO2 MODE
After Activation, the Veo 100Nx will operate as an AIR com-
puter without displaying information associated with oxygen
calculations, unless it is set for a percentage of oxygen (FO2)
other than AIR (a numerical value between 21 and 50 %).
When set for an FO2 value of AIR (Fig. 9), the Veo 100Nx
will perform calculations the same as if FO2 were set for 21%
oxygen, internally accounting for oxygen loading for any subse-
quent Nitrox dives. However, oxygen related displays, warn-
ings, and the O2 Bar Graph will not appear on the display for
that dive, or subsequent dives, unless FO2 is set for a numerical
value (21 to 50).
Once a dive is made with the unit set as a nitrox computer (FO2
set for a numerical value), it cannot be programmed to operate
as an AIR computer until 24 hours after the last dive. AIR will
not be displayed as an option in the FO2 Mode. However, you
can set FO2 for 21% for use with AIR.
When FO2 is set at a value of 21% (Fig. 10), the unit will
remain set at 21% for subsequent nitrox dives until FO2 is set to
a higher value, or until it automatically turns Off and is reacti-
vated.
Setting FO2 is escribe on Page 21.
Fig. 9 - FO2 Set for AIR
Fig. 10 - FO2 Set for 21%

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Fig. 11 - FO2 Default ON
Fig. 12 - FO2 Default OFF
FO2 50% DEFAULT
If the FO2 Default is set to ON (Fig. 11) and FO2 is set to
a value greater than 21%, the FO2 set point value will automati-
cally revert to 50% 10 minutes after that dive. The Maximum
Depth that can be achieved with a PO2 of 1.60 ATA will also
be displayed.
 FO2 must therefore be reset for each repetitive nitrox dive,
or the value will automatically Default to 50(%) and the dives
will be calculated based on 50% O2 (50% nitrogen) for
oxygen calculations and 21% O2 (79% nitrogen) for nitro-
gen calculations.
If the Default is set to OFF (Fig. 12), the FO2 value for
repetitive dives remains the same as previously set until the Set
Point is manually changed.

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ACTIVATION and SETUP
WARNING: Prior to iving with the Veo 100Nx, you must also
rea an un erstan the Oceanic Dive Computer Safety an
Reference Manual, Doc. No. 12-2262, which provi es Important
Warnings an Safety Recommen ations as well as general
pro uct information.

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ACTIVATION
WARNING: If the unit is activate at elevations
higher than 14,000 feet (4,270 meters), it will per-
form a iagnostic check an imme iately shut own.
To Activate the Veo 100Nx, press and release the Button.
 Upon manual activation, the unit will enter Diagnostic
Mode (Fig. 13), 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
ensure that everything is within tolerance and functioning
properly.
 When the button is held depressed and the Diagnostic
countdown reaches 00, a Serial Number screen appears
displaying the units Serial Number and firmware code
Revision Number as long as the button is held depressed
(Fig. 14). Upon releasing the button, the unit shuts Off.
 After manual activation, 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 recalibrate itself to measure depth at that higher Alti-
tude.
Fig. 13 - DIAGNOSTIC MODE
Fig. 14 - SERIAL NUMBER

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Wet Contact Activation (only if Wet Activation is set ON)
The Veo 100Nx will also automatically activate by Wet Contact.
This is accomplished by bridging the gap between contacts
located on the Button's stem and back of the case.
If no dive is made within 2 hours after initial activation, the unit
will automatically deactivate. If the wet contacts are still
bridged, the unit will reactivate and display the H2O graphic.
SURFACE SEQUENCE
While on the surface, the unit will automatically scroll through a
Sequence of displays including -
 Surface Mode
 Fly Mode
 DeSat Mode
 Plan Mode
As the Surface Sequence is scrolling, you can use the button to
access Log Mode and Set Mode.
SURFACE MODE
Surface Mode, identified by the Surface Time icon (Fig. 15a),
follows Diagnostic Mode after Activation. Information includes
Dive Number (0 if no dive made yet), Temperature (and icon),
Time of Day (with icon), the Battery Indicator, and Surface Time
(with flashing colon).
Fig. 15 - SURFACE MODE
(module is dry)
a

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If the wet contacts are bridged, the graphic H2O will appear in
place of the dive number 0 (Fig. 16). After the unit is rinsed and
dried, 0 will replace H2O.
While the Surface Sequence is scrolling -
 press/release the button (< 2 seconds) to access Log Mode.
 depress the button for 2 seconds to access Set Mode.
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.
Set Mode Access/Timing
To access Set Mode while the Surface Sequence is scrolling,
press/release the button momentarily (< 2 seconds).
 Upon entry into Set Mode, the Set FO2 screen will be
displayed with the Set Point flashing (Fig. 17).
 If the button is not pressed during a 2 minute period while in
the Set Mode, the unit will revert to Surface Mode and
resume the Surface Sequence scroll.
Fig. 17 - SET MODE ENTRY
Fig. 16 - SURFACE MODE
(module is wet)