Oceanic Dive Computer Pro Plus 2 User manual

PRO PLUS 2
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.
Pro Plus 2 Operating Manual, Doc. No. 12-2328
© 2002 Design 2002
San Leandro, Ca. USA 94577
TRADEMARK NOTICE
Oceanic, the Oceanic logo, Pro Plus 2, the Pro Plus 2 logo, Smart Glo, OceanGlo, Graphic Diver Interface, Tissue
Loading Bar Graph, Pre Dive Planning Sequence, Variable Ascent Rate Indicator, Set Point, Control Console, Turn Gas
Alarm, and OceanLog 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),
Air Time Remaining (U.S. Patent no. 4,586,136), 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 Pro Plus 2 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 Pro Plus 2 dive computer
model is based upon the latest research and experiments in decompression theory. Still, using the Pro Plus 2, just
as using the U.S. Navy (or other) No Decompression Tables, is no guarantee of avoiding decom-
pression sickness, 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
LIMITED TWO-YEAR WARRANTY ............................................................................................................................ 2
NOTICES ..................................................................................................................................................................... 2
DECOMPRESSION MODEL ....................................................................................................................................... 2
FEATURES AND DISPLAYS............................................................................................. 7
INTERACTIVE CONTROL CONSOLE ....................................................................................................................... 8
BAR GRAPHS ............................................................................................................................................................. 9
Tissue Loading Bar Graph (TLBG) ......................................................................................................................... 9
Oxygen Bar Graph (O2BG) .................................................................................................................................. 10
Variable As ent Rate Indi ator (VARI) .................................................................................................................. 10
Air Time Remaining Bar Graph (ATRBG) ............................................................................................................. 11
DIVE TIME REMAINING ........................................................................................................................................... 11
ALPHA / NUMERIC DISPLAYS ................................................................................................................................. 12
Cylinder Pressure ................................................................................................................................................. 12
Depth Displays ...................................................................................................................................................... 12
Time and Date Displays ....................................................................................................................................... 13
Temperature Display ............................................................................................................................................. 13
AUDIBLE ALARM ...................................................................................................................................................... 14
LED Warning Light ............................................................................................................................................... 14
SMARTGLO BACKLIGHT ........................................................................................................................................ 16
POWER SUPPLY ...................................................................................................................................................... 16
Battery Consumption Indi ator ............................................................................................................................. 16
Low Battery Condition .......................................................................................................................................... 17
O2 MODE ................................................................................................................................................................ 18
FO2 50% Default .................................................................................................................................................. 19

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CONTENTS (continued)
ACTI ATION AND SETUP .............................................................................................. 21
ACTIVATION .............................................................................................................................................................. 22
SUR ACE MODE ...................................................................................................................................................... 23
A essing Other Modes ....................................................................................................................................... 23
SET MODES .............................................................................................................................................................. 24
ENTERING SETTINGS -SET MODE #1 .............................................................................................................. 25
ENTERING SETTINGS -SET MODE #2 .............................................................................................................. 29
PLAN AND DI E MODES ............................................................................................... 45
PRE DIVE PLANNING SEQUENCETM .................................................................................................................... 46
TISSUE LOADING BAR GRAPH .............................................................................................................................. 48
OXYGEN ACCUMULATION BAR GRAPH ............................................................................................................... 49
VARIABLE ASCENT RATE INDICATOR .................................................................................................................. 49
AIR TIME REMAINING BAR GRAPH BAR GRAPH ................................................................................................ 50
CONTROL O DISPLAYS ......................................................................................................................................... 50
NO DECOMPRESSION DIVE MODE ....................................................................................................................... 51
DECOMPRESSION DIVE MODE .............................................................................................................................. 54
VIOLATION MODES .................................................................................................................................................. 57
Conditional Violation Mode ................................................................................................................................... 57
Delayed Violation Modes ...................................................................................................................................... 59
Immediate Violation Mode and Gauge Mode ....................................................................................................... 60
HIGH PO2 DIVE MODE ............................................................................................................................................. 62
HIGH OXYGEN ACCUMULATION ............................................................................................................................ 63
USER SET DIGITAL GAUGE MODE ........................................................................................................................ 64
UNEXPECTED LOSS O DISPLAYED IN ORMATION .......................................................................................... 64

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CONTENTS (continued)
WARNING: Prior to diving with the Pro Plus 2, you must also read and
understand the Oceanic Dive Computer Safety and Reference Manual.
POST DI E MODES ....................................................................................................... 65
POST DIVE SUR ACE MODE .................................................................................................................................. 66
TRANSITION PERIOD .............................................................................................................................................. 66
A TER THE TRANSITION PERIOD (THE IRST 2 HOURS) .................................................................................. 68
To a tivate the Ba klight - .................................................................................................................................... 68
To a ess the Pre Dive Planning Sequen e - ...................................................................................................... 68
To a ess the Time to Fly Countdown ................................................................................................................. 69
To a ess the Time to Desaturate Countdown .................................................................................................... 69
Log Mode .............................................................................................................................................................. 70
A TER THE IRST 2 HOURS .................................................................................................................................. 72
WET CONTACTS ....................................................................................................................................................... 73
DOWNLOADING DATA TO A PC .............................................................................................................................. 74
SIMULATOR (DEMO) MODE .......................................................................................... 75
GENERAL ....................................................................................................................... 83
CARE AND CLEANING ............................................................................................................................................. 84
INSPECTIONS AND SERVICE ................................................................................................................................. 84
BATTERY REPLACEMENT ...................................................................................................................................... 86
SPECI ICATIONS ..................................................................................................................................................... 90
OCEANIC WORLD WIDE ......................................................................................................................................... 96
SERVICE RECORD ................................................................................................................................................... 97
RESET PROCEDURE ............................................................................................................................................... 99
Pay special attention to items marked
with this Warning symbol.

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PRO PLUS 2
Components:
a. Sele t (right) Button
b. LED Warning Light
. Smartglo Sensing Port
d. Advan e (front) Button
e. Air Time Remaining Bar Graph
f. O2 (oxygen) Bar Graph
g. I on - Des end Arrow
I on - De ompression Ceiling
I on - As end Arrow
h. Graphi - Maximum Depth
i. Tissue Loading Bar Graph
j. Battery Indi ator
k. I on - Alarm (Set Mode)
l. I on - Log Mode
m. Graphi - Demo Mode
n. Graphi - Depth
o Graphi - As ent Too Fast
p. I on - Time
q. Variable As ent Rate Indi ator
r. I on - Operating Mode
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FEATURES and DISPLAYS
WARNING: Prior to diving with the Pro Plus 2, you
must also read and understand the Oceanic Dive
Computer Safety and Reference Manual which
provides Important Warnings and Safety Recom-
mendations as well as general product information.

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INTRODUCTION
Welcome to Oceanic and thank you for choosing the Pro Plus 2 !
It is extremely important that you read this Operating Manual in sequence and understand
it completely before attempting to use the Pro Plus 2.
It is equally important that you read the Oceanic Dive Computer Safety and Reference
Manual (Doc. No. 12-2262) provided with your Pro Plus 2. It contains information that
you must become familiar with prior to diving with your Pro Plus 2.
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.
INTERACTI E CONTROL CONSOLE
The Interactive Control Console consists of two Control Buttons
that allow you to select display options and access specific
information when you want to see it. They are also used to
enter Settings, activate the Backlight, and acknowledge the
Audible Alarm.
The Left button is referred to as Advance (Fig. 1a) and the
Right button as Select (Fig. 1b).
Fig. 1 - Intera tive Control
ba

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BAR GRAPHS
Tissue Loading Bar Graph (TLBG)
The Tissue Loading Bar Graph (Fig. 2a) represents tissue
loading of nitrogen, showing your relative no decompression
or decompression status. As your depth and elapsed dive
time increase, segments will add to the Graph, and as you
ascend to shallower depths, the Bar Graph will begin to
recede, indicating that additional no decompression time is
allowed for multilevel diving.
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 green No Decompres-
sion (normal) zone, a yellow Caution zone (also No Decom-
pression), and a red Decompression (danger) zone.
While you cannot provide a guarantee against the occurrence
of decompression sickness, you may choose your own per-
sonal zone of caution based upon age, physique, excessive
weight, etc., to reduce the statistical risk.
NOTE: Displays associated with oxygen and the
O2 Bar Graph will only appear if FO2 has been set
at a value other than 'Air' (e.g., a numerical value). Fig. 2 - TLBG
a

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WARNING: At depths greater than 60 FT (18 M),
ascent rates should not exceed 60 fpm (18 mpm). At
depths of 60 FT (18 M) and shallower, ascent rates
should not exceed 30 fpm (9 mpm).
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Oxygen Accumulation Bar Graph (O2BG)
The O2 Bar Graph (Fig. 3a) represents oxygen loading, showing 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 addi-
tional exposure is allowed for that dive and 24 hour period.
ariable Ascent Rate Indicator ( ARI)
The Variable Ascent Rate Indicator (Fig. 3b) provides a visual representation of ascent
speed (i.e., an ascent speedometer). Green 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 FT (18 M). Refer to the chart (Fig. 4) for segment
values.
Fig. 3 - O2BG and VARI
a
b
60 feet (18 m) & Shallower
Segments Ascent Rate =
Displayed FPM MPM
0 0-10 0 - 3
1 11-15 3.5-4.5
2 16-20 5-6
3 21-25 6.5- .5
4 26-30 8-9
5 >30 >9
Deeper than 60 feet (18 m)
Segments Ascent Rate =
Displayed FPM MPM
0 0-20 0 - 6
1 21-30 6.5-9
2 31-40 9.5-12
3 41-50 12.5-15
4 51-60 15.5-18
5 >60 >18
Fig. 4 - VARI Values

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Air Time Remaining Bar Graph (ATRBG)
The Air Time Remaining Bar Graph (Fig. 5a) provides a graphic
representation of the time that you can remain at your present
depth and then, following a safe ascent, surface with a prede-
termined reserve of breathing gas.
This calculation and display is based on your Breathing Gas
Consumption Rate that is continuously monitored by the Pro Plus
2, and it takes into account the breathing gas required for a
safe ascent including any required decompression stops.
The green, yellow, and red zones adjacent to the bar graph
enable you to quickly focus on remaining breathing gas times of 60 minutes and less,
based on your pre selected End Pressure Alarm Set Point (described later). The bar graph
is more precise as time decreases toward the red zone.
DI E TIME REMAINING
The Pro Plus 2 constantly monitors three critical pieces of information; no decompression
status, oxygen accumulation, and breathing gas consumption rate. Refer to the Oceanic
Dive Computer Safety and Reference Manual which describes Dive Time Remaining which
is a display that indicates the time that is more critical for you at that particular moment
(i.e.; whichever time is the least amount available of the three).
Displayed will be either Time Remaining before reaching the No Decompression limit (Fig.
5b), or Time Remaining before reaching the limit for Oxygen Accumulation, or Time
Remaining before reaching the End Pressure Alarm set point.
Fig. 5 - ATRBG
a
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ALPHA / NUMERIC DISPLAYS
Cylinder Pressure Display
Cylinder Pressure (Fig 6a) is displayed any time the Pro Plus 2
is connected to a pressurized cylinder and in an active
operating mode.
Values of pressure are displayed numerically from 10 PSI (.5
BAR) up to 5000 PSI (352 BAR) in increments of 10 PSI (.5
BAR).
Depth Displays
During a dive, the Current Depth display (Fig. 6b), indi-
cates depths from 0 to 330 feet (99.9 meters) in 1 foot (.1
meter) increments.
By pressing the Left (Advance) button, the Maximum Depth
reached during that dive will be displayed in the center/left
portion of the display (Fig. 6c).
During a Decompression Dive, the required Ceiling Stop
Depth is displayed in the center of the screen. Maximum
Depth can be viewed by pressing the Left (Advance) button.
Fig. 6 - Cylinder Pressure
and Depth Displays
c
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Time and Date 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/middle portion of the display (Fig. 7a)
and a second time display (Fig. 7b) is located in the center/right. Both displays are
identified by clock icons.
 Time of Day can be set for 12 hour format (Am/Pm) or 24 hour format.
Date is displayed in the center/left portion of the screen only
to identify dive data while it is viewed in the Log Mode (see
page 70). 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 the center/left
portion of the screen (Fig. 7c) while in the Surface Mode and
Log Mode, and can be viewed as part of an Alternate Display
when the Left (Advance) button is pressed while in a dive
mode. If the Temperature exceeds a value of '99', two
dashes ( - - ) will be displayed on the screen until the unit's
temperature decreases to '99'.
Fig. 7 - Time and Temperature
Displays
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NOTE: 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 misunderstand-
ing that could result in error. The Informational Displays are described in
detail as the various operating modes they appear in are presented through-
out this manual.
AUDIBLE ALARM
LED Warning Light
A red LED Warning Light will light and a Speaker icon will appear when the Audible
Alarm emits a tone. They will turn off when the Alarm is acknowledged, and will not
activate if the Audible is Set OFF (a user setting).
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 the user pressing the
Left (Advance) button for 2 seconds. If acknowledged by the user and the situation cor-
rected, the Alarm will sound again upon reentry into the warning situation, or entry into
another type of warning situation.
A single short beep (which cannot be disabled) is emitted for the following -
 After the Diagnostic countdown, if everything is okay.
 If the unit automatically returns to Surface Mode from Simulator Mode.
 Upon completion of a Hot Swap battery change with calculations saved.
 Change from Delayed to Full Violation 5 minutes after the dive.

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Situations that will sound the Alarm, if it is turned ON (a user setting), include -
 Entry into Decompression Mode.
 Air Time Remaining Bar Graph Alarm (a user setting).
 Air Time Remaining = 5 minutes.
 Air Time Remaining = 0 minutes.
 Turn Pressure Alarm (a user setting).
 End Pressure Alarm (a user setting).
 PO2 => than the Max PO2 Alarm (a user setting), or => 1.60 ATA.
 Descent deeper than the Max Depth Alarm (a user setting).
 Tissue Loading Bar Graph Alarm (a user setting).
 Dive Time Remaining Alarm (a use setting).
 Elapsed Dive Time Alarm (a use setting).
 O2 Accumulation => allowable per dive limit, or limit for a 24 hour period.
 Ascending above a required Decompression ceiling stop depth for less than 5 minutes
(referred to as a Conditional Violation).
 Ascent rate exceeds 60 feet/minute (18 meters per minute) if greater than 60 feet (18
meters), or 30 feet/minute (9 meters/minute) at 60 feet (18 meters) and shallower.
During the following situations, the 10 second continuous tone will be followed by
a 5 second steady beep that will not turn off when acknowledged, even if it was
user Set OFF -
 Ascending above a required Decompression ceiling stop depth for more than 5 minutes
(referred to as a Delayed Violation).
 Decompression requires a ceiling stop depth of 70 feet/21 meters or deeper.
 Being on the surface for 5 minutes after a Conditional Violation (Permanent Violation).

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SMARTGLO® BACKLIGHT
To activate the Backlight - press the Right (Select) button.
 The Smart Glo
®
feature senses the intensity of natural light
present. If a low level of light is present, the Backlight will
activate and illuminate the display for button depression
time plus the user set additional Duration time (3 or 7
seconds).
 Press the button again to activate as desired.
NOTE: Extensive use of the Backlight reduces
estimated Battery life. Also, the Backlight does not
operate during a Low Battery Condition or when
downloading data to a PC.
POWER SUPPLY
The Pro Plus 2 utilizes one (1) 3 volt, CR2 Lithium Battery that
should provide from 50 dive hours of operation, if you con-
duct 1 - one hour dive each time the unit is activated, to over
150 dive hours of operation, if you conduct 3 or more one
dives each time the unit is activated.
Battery Indicator
A Battery Indicator (Fig. 8a) provides an indication of Battery
condition. The Battery Indicator will be displayed during
Surface Mode. It will not be displayed during Dive Mode(s).
Fig. 8 - Battery Indi ator
a

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Fig. 9 - Low Battery Condition
Low Battery Condition
 Voltage level is checked upon activation and every 10
minutes during operation.
 When 75 % of the Rated Power has been consumed, only
the lower bar of the Indicator will be displayed and the
full icon will flash (Fig. 9) once per second as a warning
that the Battery is to be replaced prior to conducting any
further dives.
 Upon decreasing to a voltage level that will no longer
sustain proper operation, the Battery Indicator will flash 5
times followed by shutdown of the unit.
 If a Low Battery Condition exists when the unit is manually
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 (e.g., the unit activated automatically by immersion in
water), and a Low Battery Condition exists, the Battery
Indicator will appear flashing as a warning upon descent
past 4 feet (1.2 meters). No other information will be
displayed and the unit will not enter Dive Mode.

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 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 appear after the dive upon
entry into Surface Mode.
 When the Battery is removed, settings and calculations for
repetitive dives will be retained, if a new battery can be
inserted within 8 seconds. Otherwise the calculations will
reset to zero and settings must be reset.
FO2 MODE
After Activation, the Pro Plus 2 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 with an FO2 value of 'Air' (Fig. 10), the Pro Plus
2 will perform calculations the same as if FO2 were set for
21% oxygen, internally accounting for oxygen loading for any
subsequent Nitrox dives. However, oxygen related displays,
warnings, 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 - 50).
Fig. 10 - FO2 set for AIR
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Fig. 11 - FO2 set for 21%
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. 11), 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
reactivated.
FO2 50% Default
If the Default function is set to ON (Fig. 12) 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.
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
nitrogen calculations.
Fig. 12 - FO2 Default ON
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Fig. 13 - FO2 Default OFF
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If the Default function is set to OFF (Fig. 13), the FO2
value for repetitive dives remains the same as previously set
until the set point is manually changed.
WARNING: When the unit shuts off, the FO2 set
point will default to AIR regardless if the 50%
Default is set ON or OFF. Always set, or verify, the
FO2 set point prior to each nitrox dive.
Setting FO2 for a nitrox dive is described on page
25.
ATR
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