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04.1061.07
User Manual
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Oceanic 04.1061.07 User Manual

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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
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.
as using the U.S. Navy (or other) No Decompression Tables, is no guarantee of avoiding decom- pression sickness, i.e. the bends.
No machine can predict how your body will react to a particular dive profile.
© 2002 Design 2002
San Leandro, Ca. USA 94577
Still, using the Pro Plus 2, just
Every divers physiology is different, and can even vary from day to day.
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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 Ascent Rate Indicator (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 Indicator ............................................................................................................................. 16
Low Battery Condition .......................................................................................................................................... 17
FO2 MODE ................................................................................................................................................................ 18
FO2 50% Default .................................................................................................................................................. 19
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CONTENTS (continued)
ACTIVATION AND SETUP .............................................................................................. 21
ACTIVATION .............................................................................................................................................................. 22
SURFACE MODE ...................................................................................................................................................... 23
Accessing Other Modes ....................................................................................................................................... 23
SET MODES .............................................................................................................................................................. 24
ENTERING SETTINGS -SET MODE #1 .............................................................................................................. 25
ENTERING SETTINGS -SET MODE #2 .............................................................................................................. 29
PLAN AND DIVE 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 OF 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 OF DISPLAYED INFORMATION .......................................................................................... 64
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CONTENTS (continued)
POST DIVE MODES ....................................................................................................... 65
POST DIVE SURFACE MODE .................................................................................................................................. 66
TRANSITION PERIOD .............................................................................................................................................. 66
AFTER THE TRANSITION PERIOD (THE FIRST 2 HOURS) .................................................................................. 68
To activate the Backlight - .................................................................................................................................... 68
To access the Pre Dive Planning Sequence - ...................................................................................................... 68
To access the Time to Fly Countdown ................................................................................................................. 69
To access the Time to Desaturate Countdown .................................................................................................... 69
Log Mode .............................................................................................................................................................. 70
AFTER THE FIRST 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
SPECIFICATIONS ..................................................................................................................................................... 90
OCEANIC WORLD WIDE ......................................................................................................................................... 96
SERVICE RECORD ................................................................................................................................................... 97
RESET PROCEDURE ............................................................................................................................................... 99
Pay special attention to items marked
with this Warning symbol.
WARNING: Prior to diving with the Pro Plus 2, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual.
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Components: a. Select (right) Button
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b. LED Warning Light c. Smartglo Sensing Port d. Advance (front) Button e. Air Time Remaining Bar Graph f. O2 (oxygen) Bar Graph g. Icon - Descend Arrow
Icon - Decompression Ceiling
Icon - Ascend Arrow h. Graphic - Maximum Depth i. Tissue Loading Bar Graph j. Battery Indicator k. Icon - Alarm (Set Mode) l. Icon - Log Mode m. Graphic - Demo Mode n. Graphic - Depth o Graphic - Ascent Too Fast p. Icon - Time q. Variable Ascent Rate Indicator r. Icon - Operating Mode
e
d
c
a
b
PRO PLUS 2
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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 Recom­mendations as well as general product information.
FEATURES and DISPLAYS
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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.
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Fig. 1 - Interactive Control
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INTERACTIVE CONTROL CONSOLE
The Interactive Control Console consists of two Control Buttons that allow you to select display options and access specific
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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 Right button as
ba
Select
(Fig. 1b).
Advance
(Fig. 1a) and the
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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).
a
Fig. 2 - TLBG
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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.
Variable Ascent Rate Indicator (VARI)
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.
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Deeper than 60 feet (18 m)
Segments Ascent Rate =
b
TOO
FAST
a
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
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 6.5-7.5 4 26-30 8-9 5 >30 >9
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Fig. 3 - O2BG and VARI
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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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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
Fig. 5 - ATRBG
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.
DIVE 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.
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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
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During a dive, the cates depths from 0 to 330 feet (99.9 meters) in 1 foot (.1 meter) increments.
Current Depth
display (Fig. 6b), indi-
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Fig. 6 - Cylinder Pressure
and Depth Displays
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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
Depth
PSI
is displayed in the center of the screen. Maximum
Depth can be viewed by pressing the Left (Advance) button.
Ceiling Stop
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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
and a
second time
display is located in the lower/middle portion of the display (Fig. 7a)
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
portion of the screen (Fig. 7c) while in the Surface Mode and
is displayed in the center/left
c
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
b
a
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 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.
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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Fig. 8 - Battery Indicator
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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).
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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.
Fig. 9 - Low Battery Condition
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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
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Fig. 10 - FO2 set for AIR
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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).
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Once a dive is made with the unit set as a Nitrox Computer
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(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. 11 - FO2 set for 21%
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.
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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 Recom­mendations as well as general product information.
ACTIVATION and SETUP
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ACTIVATION
To Activate the Pro Plus 2, press and release the Left (Advance) Button.
 Upon manual activation, the unit will enter Diagnostic Mode (Fig. 14), 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.
Backup Activation (only if Water Activation is set ON)
As a backup, the Pro Plus 2 will also automatically activate by water contact. This is accomplished by bridging the gap between contacts located on the Button stems and case. The graphic H2O that will be displayed as an indication is described later.
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Fig. 14 - Diagnostic Mode
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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.
WARNING: If the unit is manually activated at eleva-
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tions higher than 14,000 feet (4,267 meters), it will perform a diagnostic check followed by immediate shutdown.
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SURFACE MODE
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Surface Mode (Fig. 15), identified by the Surface Time icon, follows Diagnostic Mode after Activation. Information in- cludes Dive Number '0' (no dive made yet), Temperature (and icon), Time of Day (with icon), the Battery Consumption Indicator, and Surface Time (with flashing colon).
NOTE: 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'.
To activate the Backlight:
 press the Right (Select) button.
Accessing Other Modes
While in the Surface Mode you can access various other Modes that are described in detail throughout this manual.
 Press the Left (Advance) button to access a sequence that
includes Plan, Fly, DeSaturation, and Log Modes.  Press the Right (Select) button to activate the Backlight.  Press Both buttons (simultaneously) to access Set and
Simulator Modes.
Fig. 15 - Surface Mode
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Fig. 16 - Surface Mode
(rinse and dry the unit)
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SET MODES
Settings are divided into 2 categories. Set Mode #1 includes several settings that you would change more often and Set Mode #2 includes those items not likely to change once you set them. Set Mode 2 can be accessed by first entering settings in Set Mode 1, or by bypassing Set Mode 1.
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Fig. 17 - Set Mode 1
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Fig. 18 - Set Mode 2
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Settings can be made one after the other, or you can access a specific item that you want to set, bypassing others. Set points can be advanced by scrolling (press/hold) or one increment at a time (press/release < 2 seconds)
Set Mode Access Timing
While in Surface Mode, press Both buttons simultaneously and hold -
 after 2 seconds, SET: 1 appears (Fig. 17)  after 2 more seconds, SET: 2 appears (Fig. 18) Access is gained by releasing the buttons during the 2
second window in which SET: 1 or SET: 2 appears. then pressing the Left (Advance) button.
 If the buttons are held longer, and SET 1 and 2 are both
bypassed, the unit will go to Simulator (Demo) Mode which is described on page 75.
While in the Set Mode, if neither button is pressed during
a 2 minute period, the unit will revert to Surface Mode.
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ENTERING SETTINGS -SET MODE #1
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TO SET - FO2
(while in the Surface Mode) Factory set for AIR, FO2 can also be set to values between 21 and 50% in increments of 1%.
 Press Both buttons simultaneously, release when SET: 1
appears (2 seconds).
 Press and release the Left (Advance) button,
with the set point value flashing (Fig. 19).
 Press and release the Right (Select) button repeatedly to
increase the FO2 value from 21 to 50% in increments of 1%, then display AIR again; - or - Press and hold the Right (Select) button to scroll from AIR to 32%, then press and hold again to scroll from 32 to 50%, then AIR.
 For each FO2 value that appears, the display indicates
the Maximum Depth that can be achieved for a PO2 of
1.60 ATA (Fig. 20a), or the PO2 Alarm set point. If FO2 is set for AIR, no Depth value is displayed.
 Press the Left (Advance) button to accept the setting and
advance to Set Depth Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
FO2
appears
Fig. 19 - Set FO2
a
Fig. 20 - FO2 set for 32%
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TO SET - MAX DEPTH ALARM
(while in the Surface Mode)
Factory set for 330 feet, the Alarm can be set to values between 30 feet (3 meters) and 330 feet ( 99 meters) in increments of 10 feet (3 meters).
 Press Both buttons simultaneously, release when SET: 1
appears (2 seconds).
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Fig. 21 - Set Max Depth Alarm
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 Press and release the Left (Advance) button,
FO2
appears
with the value flashing.
 Press the Left (Advance) button
 The graphics
appear with the
FEET MAX
Max Depth
1 more time.
and
dEEP
, and Alarm icon
set point value flashing (Fig.
21).
 Press and release the Right (Select) button until the desired
Depth Alarm value appears; or press and hold to scroll through the set points.
 Press the Left (Advance) button to accept the setting and
advance to Elapsed Dive Time Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
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TO SET - ELAPSED DIVE TIME ALARM
(while in the Surface Mode)
Factory set for 3:00 (hr:min), the Alarm can be set to values between 0:10 and 3:00 (hr:min) in increments of 5 minutes.
 Press Both buttons simultaneously, release when SET: 1
appears (2 seconds).
 Press and release the Left (Advance) button,
with the set point value flashing.
 Press the Left (Advance) button
 The graphic
with the
EdT
, and Alarm and Dive Time icons appear
Elapsed Dive Time
2 more times.
value flashing (Fig. 22).
 Press and release the Right (Select) button until the desired
Alarm value appears; or press and hold to scroll through the set points.
 Press the Left (Advance) button to accept the setting and
advance to PC Interface, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
FO2
appears
Fig. 22 - Set Elapsed Dive
Time Alarm
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NOTE: For more information regarding PC Interface, refer to page 74 of this manual and to documents provided with the PC down­load product.
PC INTERFACE
PC Interface is not a setting, it is included in the Set 1 menu for easy access when data in the unit's memory is to be downloaded (copied) to the PC download software program for storage and viewing.
To download data
(while in the Surface Mode)
-
 Press Both buttons simultaneously, release when SET: 1
appears (2 seconds).
 Press and release the Left (Advance) button,
FO2
appears
with the set point value flashing.
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Fig. 23 - PC Interface
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 Press the Left (Advance) button
3 more times.
 The graphic PC appears with a 120 second countdown
timer (Fig. 23). Download must be initiated before the timer reaches 00 (within 2 minutes).
 Download is initiated by the external device requesting
data transfer (i.e., the PC download program).
 The unit reverts to Surface Mode after completion of the
Download operation, or after 2 minutes if neither button is pressed.
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ENTERING SETTINGS -SET MODE #2
These settings are ones that are not likely to change. To save time at the dive site, verify the set points and adjust them as desired prior to departing on the day's dive trip.
TO SET - UNITS OF MEASURE
(while in the Surface Mode)
Factory set for Imperial, Units of Measure can also be set for Metric.
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the graphics FT, F, and PSI (or M, C, and BAR) flashing (Fig. 24).
 Press and release the Right (Select) button to toggle
between Imperial and Metric units.
 Press the Left (Advance) button to accept the setting and
advance to Set Hour Format, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
To return to Sur- face Mode at any time while in Set Mode, press and hold Both buttons for 2 seconds.
Fig. 24 - Set Units of Measure
29
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TO SET - HOUR FORMAT
(while in the Surface Mode) Factory set for 12 Hr (12: Am to 11: Pm), the Format can also be set for 24 Hr (0: to 23: hours).
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
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Fig. 25 - Set Hour Format
30
 Press the Left (Advance) button
 The graphic
Hour
appears with 12 (or 24) flashing (Fig.
1 more time.
25).
 Press and release the Right (Select) button to toggle
between 12 and 24.
 Press the Left (Advance) button to accept the setting and
advance to Set Hour, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
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TO SET - TIME
(while in the Surface Mode) Set for factory local time, the Time can be set to values be- tween 1:00 and 12:59 (AM/PM) or 0:00 and 23:59.
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
 Press the Left (Advance) button
 Time appears with the
Hour
2 more times.
value flashing (Fig. 26).
 Press and hold the Right (Select) button to scroll through
the Hour values in increments of one hour.
 Press the Left (Advance) button to accept the setting.
 The
Minute
value flashes (Fig. 27).
 Press and hold the Right (Select) button to scroll through
the Minute values in increments of one minute.
 Press the Left (Advance) button to accept the setting and
advance to Set Year.
Fig. 26 - Set Hour
Fig. 27 - Set Minute
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TO SET - DATE
(after setting Time) Factory set for the factory local Date, the Date can be set to values between 01/01/01 and 12/31/20.
 After having set and accepted the Time, the Date appears
with the graphic
dAY,
and
Year
value flashing (Fig. 28).
Fig. 28 - Set Year
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Fig. 29 - Set Month
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Fig. 30 - Set Day
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 Press and hold the Right (Select) button to scroll through
the Year values in increments of one Year.
 Press the Left (Advance) button to accept the setting.
 The
Month
value flashes (Fig. 29).
 Press and release the Right (Select) button to scroll through
the Month values in increments of one month.
 Press the Left (Advance) button to accept the setting.
 The
Day
value flashes (Fig. 30).
 Press and hold the Right (Select) button to scroll through
the Day values in increments of one day.
 Press the Left (Advance) button to accept the setting.
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TO SET - AUDIBLE ALARM
(while in the Surface Mode) Factory set for ON, the Alarm can be also be set to OFF. This setting also applies to the red LED Warning Indicator that is synchronized with the Audible Alarm.
When set OFF, the Alarm will not sound during the conditions described on page 14.
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
 Press the Left (Advance) button
 The graphic
On
(or OFF) flashing (Fig. 31).
ALM
and Alarm (speaker) icon appear with
7 more times.
 Press and release the Right (Select) button to toggle
between ON and OFF.
 Press the Left (Advance) button to accept the setting and
advance to Set Max TLBG Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
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Fig. 31- Set Audible Alarm
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TO SET - MAXIMUM TISSUE LOADING BAR GRAPH (TLBG) ALARM
(while in the Surface Mode)
Factory set for DECO (all 8 segments), the Maximum Tissue Loading Bar Graph (TLBG) Alarm can be set to values be- tween DECO (all 12 segments) and 1 segment.
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
DECO
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Fig. 32 - Set Max TLBG Alarm
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 Press the Left (Advance) button
 The graphic
the full
ndc
TLBG
flashing (Fig. 32).
and Alarm (speaker) icon appear with
8 more times.
 Press and release the Right (Select) button to decrease the
number of segments one at a time.
 Press the Left (Advance) button to accept the setting and
advance to Set Air Time Remaining Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
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TO SET - AIR TIME REMAINING BAR GRAPH ALARM
(while in the Surface Mode)
Factory set for 5 minutes, the Air Time Remaining Bar Graph Alarm can be set to values of 0, 5, and 10 to 60 minutes in increments of 5 minutes.
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
 Press the Left (Advance) button
 The graphic
appear with the
Atr
, and Alarm (speaker) and Cylinder icons
Air Time Remaining Bar Graph
9 more times.
value flashing (Fig. 33).
 Press and release the Right (Select) button to decrease the
Alarm value in increments of 5 minutes. Or press and hold to scroll.
 Press the Left (Advance) button to accept the setting and
advance to Set Turn Pressure Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
Fig. 33 - Set Air Time Remaining
Bar Graph Alarm
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Page 36
TO SET - TURN PRESSURE ALARM
(while in the Surface Mode)
Factory set for 00 PSI/BAR (disabled), the Turn Pressure Alarm can be set to values between 1000 and 3000 PSI (69 to 205 BAR) in increments of 250 PSI (17 BAR).
 Press Both buttons simultaneously, release when SET: 2
appears.
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
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Fig. 34 - Set Turn Pressure Alarm
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 Press the Left (Advance) button
 The graphic
the
Turn Pressure Alarm
trn
and Alarm (speaker) icon appear with
10 more times.
value flashing (Fig. 34).
 Press and hold the Right (Select) button to scroll through
the Alarm values in increments of 250 PSI (17 BAR).
 Press the Left (Advance) button to accept the setting and
advance to Set End Pressure Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
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TO SET - END PRESSURE ALARM
(while in the Surface Mode)
Factory set for 00 PSI/BAR (disabled), the End Pressure Alarm can be set to values between 300 and 1500 PSI (20 to 104 BAR) in increments of 100 PSI (7 BAR).
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
 Press the Left (Advance) button
 The graphic
the
End Pressure Alarm
 Press and hold the Right (Select) button to scroll through
End
and Alarm (speaker) icon appear with
11 more times.
value flashing (Fig. 35).
the Alarm values in increments of 100 PSI (6 BAR).
 Press the Left (Advance) button to accept the setting and
advance to Set Dive Time Remaining Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
Fig. 35 - Set End Pressure Alarm
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TO SET - DIVE TIME REMAINING ALARM
(while in the Surface Mode)
Factory set for 5 minutes, the Dive Time Remaining Alarm can be set to values between 0:00 and 0:20 (minutes) in incre- ments of 1 minute.
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
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Fig. 36 - Set Dive Time
Remaining Alarm
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 Press the Left (Advance) button
 The graphic
icons appear with the
dtr
, and Alarm (speaker) and Dive Mode
Dive Time Remaining
12 more times.
value
flashing (Fig. 36).
 Press and hold the Right (Select) button to scroll through
the Alarm values in increments of one minute.
 Press the Left (Advance) button to accept the setting and
advance to Set Max PO2 Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
Page 39
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TO SET - MAXIMUM PO2 ALARM
(while in the Surface Mode)
Factory set for 1.60 (ATA), the Maximum PO2 Alarm can be set to values between 1.20 and 1.60 (ATA) in increments of .10 (ATA).
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
 Press the Left (Advance) button
 The graphics
appear with the
 Press and release the Right (Select) button to advance the
PO2
and MAX, and Alarm (speaker) icon
PO2
13 more times.
value flashing (Fig. 37).
Alarm value in increments of .10 (ATA).
 Press the Left (Advance) button to accept the setting and
advance to Set FO2 50% Default, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
Fig. 37 - Maximum PO2 Alarm
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TO SET - FO2 50% DEFAULT
(while in the Surface Mode)
Factory set ON, the FO2 50% Default feature can be set to OFF. The effects of this feature being ON or OFF are de- scribed on page 19.
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
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Fig. 38 - Set FO2 50% Default
40
 Press the Left (Advance) button
 The graphics
FO2
and 50 appear with
14 more times.
ON
(or OFF)
flashing (Fig. 38).
 Press and release the Right (Select) button to toggle
between ON and OFF.
 Press the Left (Advance) button to accept the setting and
advance to Set Backlight Duration, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
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TO SET - BACKLIGHT DURATION
(while in the Surface Mode)
Factory set for 3 seconds, the Backlight Duration can be set to values of 0 (disabled), 3, or 7 seconds. This is the length of time the Backlight stays On after the button is released.
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
 Press the Left (Advance) button
 The graphic
tion
 Press and release the Right (Select) button to advance the
GLO
and Time icon appear with the
value flashing (Fig. 39).
15 more times.
Duration from :00 to :03 to :07 (seconds).
 Press the Left (Advance) button to accept the setting and
advance to Set Sampling Rate, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
Dura-
Fig. 39 - Set Backlight Duration
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Page 42
NOTE: Sampling Rate is the interval at which data samples are recorded during a dive for subse­quent download to the PC program. This setting has no effect on displayed data or data in the unit's viewable Log.
TO SET - PC SAMPLING RATE
(while in the Surface Mode)
Factory set at 15 seconds, the Sampling Rate can be set at values of 2, 15, 30, or 60 seconds, or 2, 5, or 10 feet (.5,
1.5, or 3 meters).
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
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Fig. 40 - Set PC Sampling Rate
42
 Press the Left (Advance) button
 The graphics SR and
Rate
value flashing (Fig. 40).
SECS
16 more times.
appear with the
Sampling
 Press and release the Right (Select) button advance the
Rate one selection at a time.
 Press the Left (Advance) button to accept the setting and
advance to Set Digital Gauge Mode, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
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TO SET - USER SET DIGITAL GAUGE MODE
(while in the Surface Mode)
Factory set OFF, Digital Gauge Mode can also be set ON. The effects of this feature being ON or OFF are described on page 64.
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
NOTE: Once a dive is made with this feature set ON, the setting will be locked ON for 24 hours after the dive. Set Digital Gauge Mode will not appear as a selec­tion during that 24 hour period.
 Press the Left (Advance) button
 The graphic
GAU
appears with
17 more times.
OFF
(Fig. 41).
 Press and release the Right (Select) button to toggle
between ON and OFF.
 Press the Left (Advance) button to accept the setting and
advance to Set Water Activation, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
(or ON) flashing
Fig. 41 - Set Digital Gauge Mode
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WARNING: If this feature is set for OFF, the Pro Plus 2 must be manually activated prior to commencing a dive.
TO SET - WATER ACTIVATION
(while in the Surface Mode)
Factory set for ON, the Water Activation feature can also be set for OFF (disabled) to prevent inadvertent activation during travel or storage. When set ON, the Pro Plus 2 will automati- cally Activate when immersed in water.
 Press Both buttons simultaneously, release when SET: 2
appears (4 seconds).
 Press and release the Left (Advance) button, the Units
screen appears with the set point flashing.
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Fig. 42 - Set Water Activation
44
 Press the Left (Advance) button
18 more times
(14 more times after a dive in Digital Gauge Mode).
 The graphics
ACT
and
H20
appear with ON (or OFF)
flashing (Fig. 42).
 Press and release the Right (Select) button to toggle
between ON and OFF.
 Press the Left (Advance) button to accept the setting and
revert to Surface Mode.
Page 45
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 Recom­mendations as well as general product information.
PLAN and DIVE MODES
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Depth NDL feet (meters) hours:mins 30 (9) 4:20 (4:43) 40 (12) 2:17 (2:24) 50 (15) 1:21 (1:25) 60 (18) :57 (:59) 70 (21) :40 (:41) 80 (24) :30 (:32) 90 (27) :24 (:25) 100 (30) :19 (:20) 110 (33) :16 (:17) 120 (36) :13 (:14) 130 (39) :11 (:11) 140 (42) :09 (:09) 150 (45) :08 (:08) 160 (48) :07 (:07) 170 (51) :07 (:06) 180 (54) :06 (:06) 190 (57) :05 (:05)
No Decompression Limits
for an Air Dive
(no dive made yet)
46
PRE DIVE PLANNING SEQUENCE
TM
Oceanic strongly recommends that you review the Pre Dive Planning Sequence (PDPS) prior to every dive to help you plan your dive as required to avoid exceeding no decompression or oxygen exposure limits.
This is especially important for repetitive dives when the PDPS indicates adjusted dive times that are available for the next dive, based on residual nitrogen or oxygen accumulation (whichever is in control) following the last dive and surface interval.
The PDPS 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.
During the sequence, no decompression times are only displayed for depths where there is at least 1 minute of theoretical dive time available at the depth, taking into ac- count a descent and ascent rates of 60 feet (18 meters) per minute.
Page 47
To access the Pre Dive Planning Sequence
MAX
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MAX
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FEET
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(while in the Surface mode) -
 Press the Left (Advance) button
1 time
 Press and release the Right (Select) button to advance
through the Depths/Times, one screen at a time; and then
to Surface Mode.  Press the Left (Advance) button to access Fly Mode.  The unit will revert to Surface Mode after 2 minutes if no
button is pressed.  With each depth displayed by the Pre Dive Planning
Sequence, you will see either predicted no decompression
limits (NDLs) based upon your previous dive profiles (if
calculated to be nitrogen controlled), or predicted oxygen
tolerance limits (OTLs) based upon either a single dive
exposure or your 24 hour accumulation of oxygen (if
calculated to be oxygen controlled).  The Maximum Depth allowed for the PO2 Alarm and FO2
set points will also be displayed.  Depths greater than the maximum depth that can be
achieved with a PO2 of 1.60 ATA will not be displayed.  If the Tissue Loading Bar Graph is displayed (Fig. 43),
that next dive is calculated to be controlled by nitrogen
loading.  If the O2BG and O2 symbol are displayed (Fig. 44), it is
calculated to be controlled by oxygen loading.
Fig. 43 - Nitrogen Control
Fig. 44 - Oxygen Control
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Fig. 45 - Tissue Loading Bar
48
Graph
FEET
NOTE: The Pro Plus 2 will store oxygen accumula­tion calculations for up to 10 dives conducted during a 24 hour period. If the maximum limit for oxygen loading has been exceeded for that day (24 hour period), all of the segments of the O2 bar graph will be displayed flashing .
Depth/Time values will not appear until the O2 bar graph recedes into the green (normal) zone (i.e., your daily oxygen dosage decreases an amount equivalent to the amount accumulated during the latest dive completed).
TISSUE LOADING BAR GRAPH (Fig. 45a)
As your Depth and Elapsed Dive Time increase, the Tissue Loading Bar Graph (TLBG) will add segments (green toward red) to represent the absorption of nitrogen.
While ascending to shallower depths, the number of segments displayed will begin to recede, offering a graphic representa-
PSI
tion of your multilevel diving capability.
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OXYGEN ACCUMULATION BAR GRAPH (Fig. 46a)
If FO2 was set for a numerical value (nitrox), the Oxygen Accumulation (O2) Bar Graph will add segments (green toward red) to represent oxygen accumulation for that dive, or 24 hour period, whichever amount is greater.
VARIABLE ASCENT RATE INDICATOR (Fig. 46b)
The Variable Ascent Rate Indicator (VARI) shows how fast you are ascending. When you exceed the maximum recom- mended ascent rate for the depth you are at (see below), it will enter the red (Too Fast) zone and you will be alerted by the graphic
TOO FAST
, all segments of the bar graph flashing, an Audible alarm and the red LED Warning Indica- tor, unless set OFF (Fig. 47). The warnings will stop when your ascent rate is slowed.
 At depths greater than 60 feet (18 meters), maximum
recommended rate is 60 feet/minute (18 meters/minute).
 At depths of 60 feet (18 meters) and shallower, maximum
recommended rate is 30 feet/minute (9 meters/minute).
NOTE: Refer to page 10 for additional information pertaining to the Variable Ascent Rate Indicator.
a
Fig. 46 - O2 Bar Graph & VARI
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Fig. 47 - Ascent Alarm
FEET
TOO
FAST
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AIR TIME REMAINING BAR GRAPH
FEET
The Air Time Remaining Bar Graph (Fig. 48a) displays remain-
ing breathing gas times of 60 minutes and less. As time remain-
ing decreases, segments are removed from the bar graph from
the right (green) toward the left (red) in increments of 5 minutes
(from 60 to 0 minutes).
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Fig. 48 - Air Time Remaining
Bar Graph
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When the time decreases to the Alarm set point, the Audible
Alarm will emit a beep and the red Warning LED will flash until
a
acknowledged. You should begin a safe controlled ascent to
the surface.
CONTROL OF DISPLAYS
During No Decompression conditions, various displays of information (up to 4) are avail- able. Each provides Depth, Dive Time Remaining, and additional information. The intent of this feature is to provide the diver control of how much information is on the display at any given time during the dive. The diver can change from one display to another as often as desired by pressing the Left (Advance) button, otherwise it does not change. An excep- tion to this is during a 3 minute no decompression dive Safety Stop (described on page
53).
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During conditions in which Cautionary type information is displayed (e.g., No Decompres- sion Safety Stop, Decompression, High PO2, etc.), there is a Main Display of important information relevant to the specific condition. The diver can access another display, but it will automatically revert to the Main Display after 3 seconds.
To activate the
Backlight
during a dive, press the Right (Select) button.
 The display will be illuminated as long as the button is depressed, plus it will remain
illuminated for the Backlight Duration time that has been set (3 or 7 seconds).
 The Backlight will not activate during a Low Battery condition or if the Backlight dura-
tion is set for 0.
NO DECOMPRESSION DIVE MODE
The Pro Plus 2 will enter the No Decompression Dive Mode when you descend deeper than 4 feet (1.2 meters).
No Deco Dive Mode - Display #1 (Fig. 49)
Information includes Current Depth, Dive Time Remaining and icon, Tank Pressure, and the applicable bar graphs.
 Press and release the Left (Advance) button to view Display
#2.
No Deco
Mode icon
Fig. 49 - No Deco #1
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Fig. 50 - No Deco #2
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(lower portion same as Fig. 50)
Fig. 51 - No Deco #3
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FEET
FEET
(lower portion same as Fig. 50)
Fig. 52 - No Deco #4
52
No Deco Dive Mode - Display #2 (Fig. 50)
Information includes Current Depth, Max Depth for that dive and icon, Elapsed Dive Time and icon, Dive Time Remaining and icon, Tank Pressure, and the applicable bar graphs.
 Press and release the Left (Advance) button again to view
Display #3.
No Deco Dive Mode - Display #3 (Fig. 51)
Information includes Current Depth, Temperature, Time of Day, Dive Time Remaining and icon, Tank Pressure, and the applicable bar graphs.
 Press and release the Left (Advance) button again to view
Display #4 (only if FO2 is set for a numerical value - Nitrox), or revert to Display #1 (if FO2 is set for Air).
No Deco Dive Mode - Display #4 (Fig. 52)
Information includes - Current Depth, current value of PO2 (if a nitrox dive) and PO2 graphic, Dive Time Remaining and icon, Tank Pressure, and applicable bar graphs.
 press the Left (Advance) button to view Display #1.
Page 53
No Deco Dive Mode - Secondary Display (Fig. 53)
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To view, press the Left (Advance) button for 2 seconds.
Information includes Current Depth, Air Time Remaining (and Mode icon), and applicable bar graphs.
The Display will remain on the screen for 3 seconds then revert back to the Display previously selected (#1, 2, 3, 4).
No Deco Dive Mode - SAFETY STOP (Fig. 54)
Upon ascending to 20 feet (6 meters) on any No Decompres- sion dive in which depth exceeded 30 feet (9 meters), a short beep will be emitted and 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).
The Safety Stop will be displayed until the countdown times out, or the diver descends below 30 feet (10 meters), or the diver surfaces. There is no Penalty if the diver surfaces prior to completing the Safety Stop.
Information includes Current Depth, Stop Depth (15 feet or
4.5 meters), Stop Bar icon, Countdown Timer, Dive Time Remaining, Cylinder Pressure, and applicable bar graphs.
Fig. 53 - No Deco Secondary
Fig. 54 - No Deco Safety Stop
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DECOMPRESSION DIVE MODE
The Pro Plus 2 is designed to help you by providing a repre- sentation of how close you are to entering Decompression. Decompression Dive Mode (Fig. 55) activates when theoreti- cal No Decompression time/depth limits are exceeded.
Upon entering Decompression Mode, the Audible Alarm will sound and the red LED Warning Light will flash for 10 seconds (unless set OFF), or until acknowledged.
Deco Mode icon
 Press and hold the Left (Advance) button for 2 seconds to
acknowledge/silence the Audible Alarm (unless set OFF).
 The UP Arrow and Deco Bar will flash if you are greater
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than 10 feet (3 m) deeper than the Required Stop Depth.
 Once you are within 10 feet (3 m) of, and below, the
Stop Depth, both Arrows and the Bar appear solid.
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Fig. 55 - Entry into Deco Mode
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Total Ascent Time
Total Ascent Time (Fig. 55a) includes Stop Times required at all required decompression ceilings and vertical Ascent Time calculated at 60 feet (18 meters) per minute for depths deeper than 60 feet (18 meters), and 30 feet (9 meters) per minute for depths of 60 feet (18 meters) and shallower.
Page 55
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Managing Decompression Stops
To fulfill your decompression obligation, you should make a safe controlled ascent to a depth slightly deeper than, or equal to, the Required Ceiling Stop Depth indicated (Fig. 56a) and decompress for the Stop Time indicated (Fig. 56b).
The amount of decompression credit time that you receive is dependent on depth, with slightly less credit given the deeper you are. You should stay slightly deeper (Fig. 56c) 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.
While in Decompression Mode, the Pro Plus 2 will
automatically revert to the Main Display after 3 seconds unless the Left (Advance) button is pressed to view another display of information.
Decompression Dive Mode - Main Display #1 (Fig. 56)
Information includes - Current Depth, required Ceiling Stop Depth and Time, Total Ascent Time (and Mode icon), both Arrows and the Deco Bar, and the applicable bar graphs.
 Press and release the Left (Advance) button to view Dis-
play #2.
c
b
a
Fig. 56 - Deco #1
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Fig. 57 - Deco #2
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(lower portion same as Fig. 57)
Fig. 58 - Deco #3
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Decompression Dive Mode - Display #2 (Fig. 57)
Information includes - Current Depth, Maximum Depth for that dive (and icon), Elapsed Dive Time (and icon), Total Ascent Time (and Mode icon), both Arrows and the Deco Bar, and the applicable bar graphs.
 Press and release the Left (Advance) button again to view
Display #3.
Decompression Dive Mode - Display #3 (Fig. 58)
Information includes - Current Depth, Temperature, Time of Day (and icon), Total Ascent Time, both Arrows and the Deco Bar, and the applicable bar graphs.
 Press and release the Left (Advance) button again to view -
Display #4 (only if FO2 is set for a numerical value - Nitrox), or revert to Display #1 (if FO2 is set for Air).
Decompression Dive Mode - Display #4 (Fig. 59)
Information includes - Current Depth, the current value of PO2 (if a nitrox dive) and PO2 graphic, Total Ascent Time, Mode icon, both Arrows and the Deco Bar, and applicable bar graphs.
(lower portion same as Fig. 57)
Fig. 59 - Deco #4
56
 Press the Left (Advance) button to view Display #1.
Page 57
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VIOLATION MODES
While in Violation Modes the Alternate Displays previously described can be accessed using the Left (Advance) button, and the Backlight can be activated using the Right (Select) button.
 The Pro Plus 2 will automatically revert to the Main Display after 3 seconds unless the
Left (Advance) button is pressed to view another display of information.
Conditional Violation Mode (Fig. 60)
I
f you ascend shallower
Stop Depth
displayed (Fig. 60b), the Down Arrow, Deco Bar, and Total Ascent Time will flash until you descend below the Required Stop Depth. Also displayed will be Current Depth and applicable bar graphs.
(Fig. 60a)
than a Required Decompression Ceiling
a
Unless set OFF, the Audible Alarm will emit a continuous tone and the red LED Warning Light will flash for 10 seconds, or until acknowledged by pressing the Left (Advance) button.
If you descend below the required decompression ceiling before 5 minutes have elapsed, the Pro Plus 2 will continue to function in Decompression Dive Mode. In this case, no off- gassing credit will be given, and for each minute above the ceiling 11/2 minutes of Required Stop Time.
Penalty Time
will be added to
b
Fig. 60 - Conditional Violation
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Page 58
The added Penalty (decompression) Time will 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. The Tissue Loading Bar Graph will recede into the yellow Caution Zone and the Pro Plus 2 will revert to the No Decompression Dive Mode.
NOTE: Upon entry into the following 3 Delayed Violation Modes, the red LED warning light will light and the Audible Alarm will sound, even if Set OFF. The Alarm cannot be acknowledged (si­lenced) by pressing the Left (Advance) button.
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Fig. 61 - Delayed Violation #1
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Delayed Violation Mode #1 (Fig. 61)
(This is a continuation of a Conditional Violation.)
If you remain above the Required Ceiling Stop Depth for more than 5 minutes,
the full Tissue Loading Bar Graph and Total Ascent Time will flash until you descend below the Required Stop Depth.
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Delayed Violation Mode #2 (Fig. 62)
The Pro Plus 2 cannot calculate decompression times for Stop Depths much greater than 60 feet (18 meters) and offers no indication of how much time spent underwater would result in the need for a greater Stop Depth.
If the Decompression obligation requires a Ceiling Stop Depth between 60 feet (18 meters) and 70 feet (21 meters),
the Tissue Loading Bar Graph will flash.
Total Ascent Time will still be displayed.
You must ascend to just deeper than, and stay as close as possible to, 60 feet (18 meters) without causing the Total Ascent Time display to flash. When the Required Stop Depth indicates 50 FT/ 15 M, etc., you can ascend to those depths and continue decompressing.
Delayed Violation Mode #3 (Fig. 63)
If you descend deeper than 330 feet (99.9 meters),
the accumulated Tissue Loading Bar Graph segments will flash, and the Current Depth and Max Depth displays will only indicate 3 dashes ( - - -).
Fig. 62 - Delayed Violation #2
Fig. 63 - Delayed Violation #3
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Fig. 64 - Immediate Violation
Gauge Mode (underwater)
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Upon ascending above 330 feet (99.9 meters), the Current Depth display will be restored, however Max Depth will only display 3 dashes for the remainder of that dive. The Log for that dive will display 3 dashes as the Max Depth achieved.
Immediate Violation Mode and Gauge Mode
During a Dive, if a ceiling much greater than 60 feet (18 meters) is required, an
Immediate Violation Mode
will be entered. This situation would be preceded by entering Delayed Violation Mode #2.
The Pro Plus 2 would then operate with limited functions in
Gauge Mode
during the remainder of that dive and for 24 hours after surfacing. Gauge Mode turns the Pro Plus 2 into a digital instrument without any decompression or oxygen monitoring functions.
Only Current Depth, Max Depth, Elapsed Dive Time, and the bar graphs will be displayed (Fig. 64). The full Tissue Load- ing Bar Graph and O2 Bar Graph will both flash as a warn-
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ing of this condition.
 Press the Left (Advance) button to view Temperature and
Time of Day.
 Press the Right (Select) button to activate the Backlight.
Page 61
The Pro Plus 2 will also enter an
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Mode
5 minutes after reaching the surface from a dive in
Immediate Violation
which a Delayed Violation occurred.
On the surface,
Gauge Mode
displays the Dive Number, Temperature, Time of Day, and Surface Interval (Fig. 65). It does not provide the FO2, PDPS, or Time to Fly and Desaturate features.
The countdown timer that appears when you try to access Time to Fly does not represent 'Time to Fly'. It is only pro- vided to inform you of the time remaining before normal Pro Plus 2 operation can resume with full features and functions.
This condition is a Permanent Violation, and in the event that a dive is made during the 24 hour pe- riod, a full 24 hour surface interval must then be served before all functions are restored.
Responsible
Fig. 65 - Immediate Violation
Gauge Mode (after surfacing)
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Fig. 66 - PO2 Warning
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Fig. 67 - PO2 Alarm
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HIGH PO2 DIVE MODE
When partial pressure of oxygen (PO2) becomes equal to, or greater than,
Alarm set point (a user setting);
1.40 ATA, or 0.2 ATA less than the PO2
the red LED warning will flash, the Audible Alarm will sound (unless set OFF), and the current PO2 value, PO2 symbol, O2 segment of the O2 Bar Graph, and UP Arrow will appear on the Main Display as
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a warning until PO2 decreases. Current Depth and Dive Time Remaining will also be displayed (Fig. 66).
If PO2 continues to increase, the value displayed will increase toward a maximum value of 5.00 ATA in increments of .01 ATA. When it reaches a value of
Alarm set point (a user setting),
1.60 ATA, or the PO2
the Audible Alarm will sound (unless set OFF) and the current PO2 value, PO2 symbol, O2 segment of the O2 Bar Graph, and UP Arrow will flash as a warning until PO2 decreases (Fig. 67).
 Press the Left (Advance) button to view the Alternate
Displays.  The unit will revert to the Main Display after 3 seconds.  Press the Right (Select) button to activate the Backlight.
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HIGH OXYGEN ACCUMULATION
The O2 Bar Graph
displays either oxygen accumulated during that nitrox dive, or during the repetitive nitrox dives you conduct during that 24 hour period, whichever of the two is greater at that time.
The yellow
Caution Zone
of the O2 Bar Graph offers you a convenient way to consistently monitor how close you are coming to the limits of oxygen exposure.
Use it as a visual reference to place a wider margin of protection between you and the Limits.
If the theoretical amount of oxygen accumulated equals, or exceeds, the limit for a single exposure, or the exposure limit for a 24 hour period, Oxygen Dive Time Remaining becomes zero (0:00) and the O2 Bar Graph will enter the red
(Danger) Zone
the Audible Alarm will sound (unless set OFF), and the UP
(Fig. 68). The red LED warning will flash,
Arrow and the full O2 Bar Graph will flash as a warning until the level of oxygen decreases below the limit.
 Press the Left (Advance) button to view the Alternate Displays.  The unit will revert to the Main Display after 3 seconds.  Press the Right (Select) button to activate the Backlight.
O2
Fig. 68 - High O2
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Fig. 69 - User Set Gauge Mode
USER SET DIGITAL GAUGE MODE
When Digital Gauge Mode is set for ON, the Pro Plus 2 will operate as a Digital Depth Gauge/Timer without performing nitrogen and oxygen calculations (Fig. 69).
Time of Day and Elapsed Dive Time will also be displayed.
 Press the Left (Advance) button to view Air Time Remain-
ing for 3 seconds in place of Elapsed Dive Time (Fig. 70).
UNEXPECTED LOSS OF DISPLAYED INFORMATION
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Fig. 70 - User Set Gauge Mode
(Air Time Remaining)
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If your Pro Plus 2 stops working for any reason, it is important that you have anticipated this possibility and are prepared for it. This is an important reason for not pushing the no decom- pression and oxygen accumulation limits, and a critical reason to avoid entering decompression. If you dive in situations where your trip would be ruined or your safety would be jeopardized by losing the use of your Pro Plus 2, a backup instrument system is highly recommended.
Page 65
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 Recom­mendations as well as general product information.
POST DIVE MODES
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Fig. 71 - Transition Period
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POST DIVE SURFACE MODE
When you ascend to 3 feet (1 meter) or shallower, the Pro Plus 2 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. 71):
 Number of that dive (during that day)  Battery Consumption Indicator  Temperature (ambient)  Time of Day and icon  Surface Interval time (colon flashing) and icon (flashing)  Tissue Loading Bar Graph indicating current nitrogen
loading
 O2 Bar Graph indicating current oxygen accumulation (if
nitrox)
During the Transition Period, Log Mode can be accessed.
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No other modes (e.g., PDPS, Fly, Desat, Set, PC) are accessible.
 Press the Right (Select) button to activate the Backlight.
Page 67
To view that dive's Log (Fig. 72) -
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Refer to page 64 for a description of the Log Mode displays.
 Press the Left (Advance) button  Press the Right (Select) button
1 time
1 time
.
to view the Nitrogen
data screen.
 Press the Right (Select) button
again
to view the Oxygen
data screen (if a nitrox dive).
 Press Both buttons simultaneously for 2 seconds to return
to Surface Mode.
 The unit will revert to Surface Mode after 2 minutes if no
button is pressed.
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. The time at the surface (if less than 10 minutes) will not be added as Dive Time.
Fig. 72 - Log Mode
(during Transition Period)
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AFTER THE TRANSITION PERIOD (THE FIRST 2 HOURS)
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Fig. 73 - Surface Mode (>10 min)
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Fig. 74 - Adjusted NDLs
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For the remainder of the
first 2 hours after surfacing
, information will continue to be displayed as Surface Mode (Fig. 73) and you will have full access to other modes (e.g., PDPS, Fly, Desat, Log, Set, etc.).
To activate the Backlight -
 Press the Right (Select) button.
To access the Pre Dive Planning Sequence -
(Also refer to page 46)
 Press the Left (Advance) button
1 time
(while in Surface
Mode).
 Press and release the Right (Select) button to advance
through the sequence of available 'adjusted' depths and times one screen at a time.
 The unit will revert to Surface Mode after 2 minutes, unless
the Left (Advance) button is pressed to access the Fly Mode.
The Pre Dive Planning Sequence now shows
adjusted
No Decompression Limits (Fig. 74) based on residual nitrogen and accumulated oxygen calculated to be remaining from the previous dives.
Page 69
To access the Time to Fly Countdown (while in Surface
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Mode)
 Press the Left (Advance) button
2 times
.
 The Time to Fly counter (Fig. 75) begins counting down 10
minutes after surfacing from a dive (after the Transition Period) displaying the word 'FLY' and a countdown that begins at 23:50 (hr:min) and counts down to 0:00 (hr:min).
 If a Violation occurred during the dive a single dash ( - )
will appear instead of the letters FLY.
 The unit will revert to Surface Mode after 2 minutes, unless
the Left (Advance) button is pressed to access the Desat Time Countdown.
To access the Time to Desaturation Countdown
(while in Surface Mode)
 Press the Left (Advance) button
3 times
.
 The unit will revert to Surface Mode after 2 minutes, unless
the Left (Advance) button is pressed to access the Log Mode.
 If a Violation occurred during the dive, Desaturation Time
will not be displayed.
The Time to Desaturate counter (Fig. 76) provides calculated time for tissue desaturation at sea level. The countdown starts 10 minutes after surfacing at 23:50 (hr:min) maximum and counts down to 0:00 (hr:min).
Fig. 75 - Time to Fly
Fig. 76 - Time to Desaturate
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LOG MODE
Information from your latest 24 dives is stored in the new 'activation period' will be #1, then #2, etc. After 24 dives are accumulated, each subsequent dive will overwrite the oldest dive in the Log (i.e., the most recent dive deletes the oldest). Log information will not be lost when the battery is removed, but factory service will delete data.
Dives are displayed in a reverse sequence that starts with the dive most recently recorded back to the oldest of the 24 dives stored. Thus, your most recent dive will always be the first shown in the sequence. Each dive has three log screens - Date/Time started, Nitrogen data, and Oxygen data (not displayed if the dive included a Violation). Dives are identi- fied by the Date/Time started and 'number' that day.
Button Control in Log Mode -
 The Left (Advance) button is used to access a specific dive's Log.  HINT: To bypass a dive's Log and search for another in the sequence, press the Left
(Advance) button repeatedly. Do not press the Right (Select) button until you find the dive Log you wish to view.
The Right (Select) button is used to view the second and third screens (Nitrogen and
Oxygen related data) for that dive.
 To return to Surface Mode at any time while in Log Mode, press Both buttons simulta-
neously for 2 seconds.
 The unit will automatically revert to Surface Mode after 2 minutes if no button is
pressed while in the Log Mode.
70
Log
for viewing. The first dive of a
Page 71
To access the Log Mode and view the First Screen
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(While in Surface Mode) -
 Press the Left (Advance) button
4 times
 The First Screen of the most recent dive will appear
displaying (Fig. 77) -
 The Log Mode icon  Dive Number  Time/ Date the dive started
To view the Second Screen of the Log (Nitrogen data)
-
 Press the Right (Select) button
1 time
Time/Date). Displayed will be (Fig. 78) -  Log Mode icon  Maximum Depth - reached during the dive (and icon)  Temperature - minimum during the dive (and icon)  Surface Interval - prior to that dive (and icon)  Elapsed Dive Time (and icon)  Variable Ascent Rate Indicator - showing the maximum
ascent rate maintained for 4 consecutive seconds during
the dive  Tissue Loading 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 will
appear flashing.
.
Fig. 77 - Log (Date / Time)
(while viewing the
Fig. 78 - Log (Nitrogen Data)
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To view the Third Screen of the Log (Oxygen data)
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Fig. 79 - Log (Oxygen Data)
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Fig. 80 - Surface Mode
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 Press the Right (Select) button
1 time
(while viewing the
Nitrogen data). Displayed will be (Fig. 79)-  Log Mode icon  FO2 graphic and value set for that dive  Maximum PO2 level reached during that dive and PO2
graphic  O2 Bar Graph - showing oxygen loading at the end of the
dive
To access the first screen of the previous dive's Log
Press the Left (Advance) button
1 time
.
AFTER THE FIRST 2 HOURS
Two hours after the last dive, Surface Mode will no longer be displayed, the Time to Fly and Desaturation countdowns will be displayed alternately for 3 seconds each until they count down to 0:00 or another dive is made.
To access other modes or enter settings -
 Press Either button to return to Surface Mode (Fig. 80).  The unit will again revert to the Time to Fly and
Desaturation countdowns after 2 hours, if no button is
pressed.
Page 73
WET CONTACTS
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If the graphic
H2O
appears during the Fly Mode (Fig. 81) and Desaturation Mode (Fig. 82) countdowns that alternate 2 hours after a dive, it is an indication that the water activation contacts are bridged (still wet) and the unit must be rinsed in fresh water and thoroughly dried.
One contact is located between the control buttons and the other at the base of the Right (Select) button's stem.
 Once the unit is dry, the graphic
H2O
will disappear
from the display.
 If the unit is not cleaned and dried prior to the countdowns
reaching 0:00 (hr:min), or making another dive, it will shut off then automatically reactivate.
 The graphic
H2O
would then appear in place of Dive Number when Surface Mode is displayed during the Surface Mode.
 If no dive is made, the unit would shut off after 2 hours,
then automatically reactivate again, repeating the action until cleaned and dried.
Fig. 81 - Fly Mode
(Activation Contacts Wet)
Fig. 82 - Desaturation Mode
(activation contacts wet)
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Fig. 83 - PC Interface
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DOWNLOADING DATA TO A PC
Using special linking hardware, dive data can be down- loaded (copied) from your Pro Plus 2 to an IBM compatible PC program running on a Windows® operating system. Compatibility requirements and instructions are provided with the optional download package that is available from your Authorized Oceanic Dealer. The software program provides dive tabular and graphic profile data sampled throughout the dives at the interval you set.
NOTE: Ensure that the download product that you acquire is compatible with the Pro Plus 2 and the PC equipment that you will be using.
The Interface Cable will be connected to the Data Port located on the side of the Pro Plus 2 housing.
Prior to attempting to download data from your Pro Plus 2, refer to the instructions provided in the User Manual that is incorporated into the CD for the download package.
Refer to page 28 of this manual for instructions regarding access to PC Interface (Fig. 83).
Page 75
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 Recom­mendations as well as general product information.
SIMULATOR (DEMO) MODE
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Fig. 84 - Simulator Mode
SIMULATOR MODE
This mode provides you with the ability to practice various dive mode scenarios and computer functions while observing the various displays.
The SmartGlo Backlight functions as it normally does. At any time while in Simulator Mode, pressing and
holding both buttons simultaneously for 2 seconds shall revert operation to real Surface Mode.
 The real set points entered into the Pro Plus 2 do not affect
the operation of the Simulator which has its own settings that allow Digital Gauge Mode to be set ON or OFF, calculations to be cleared, and FO2 to be set.
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Fig. 85 - Set Demo Gauge
76
Access and Setup (while in real Surface Mode)
 Press and hold Both buttons for 6 seconds.  Release the buttons during the 2 second window when
SIM
and
DEMO
appear (Fig. 84).
Press and release the Left (Advance) button to access SIM
MODE. The graphics
OFF
(or ON) flashing (Fig. 85).
GAU
and
DEMO
will appear with
 When set ON, the SIMULATOR will operate as the unit
would in User Set Digital Gauge Mode only displaying Depth and Elapsed Dive Time. When set
OFF
, it operates
as it would as an Air or Nitrox computer.
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 Press and release the Right (Select) button to toggle
between Gauge ON and
OFF
.
Press and release the Left (Advance) button to accept the
setting and advance to
NEW
) flashing (Fig. 86).
 When set for
NEW
DEMO: NI-O2
, calculations are based on zero
residual nitrogen and oxygen loading (a clean dive).
 When set for
CUR
, calculations take into consideration any residual nitrogen and oxygen remaining from previ- ous 'actual' dives.
 Subsequent (repetitive) Simulated dives do not take into
consideration previous Simulated dives.
 Press and release the Right (Select) button to toggle
between
NEW
and
CUR
.
 Press and release the Left (Advance) button to accept the
setting and advance to
CYL
, or
3000
 When set for
displays appear relating to tank pressure.
 When set for
flashing (Fig. 87).
OFF
CYL
DEMO: PSI
(or
, no calculations are made and no
, Air Time Remaining is calculated based upon actual pressure of the tank that the Pro Plus 2 is connected to.
 When set for
based upon a simulated tank pressure of 3000 psi.
3000
, Air Time Remaining is calculated
with
bAr
CUR
) with
(or
OFF
Fig. 86 - Set Demo Calibration
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Fig. 87 - Set Pressure On/Off
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Fig. 88 - Set Demo FO2
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 Press and release the Right (Select) button to toggle
between Pressure ON and
OFF
.
 Press and release the Left (Advance) button to accept the
setting and revert to
Demo Surface Mode
with the
DEMO icon flashing.
Press and release the Left (Advance) button to access
DEMO: FO2
with the DEMO icon and
Air
(or a numeri-
cal value) flashing (Fig. 88).
 Press and hold the Right (Select) button to scroll from
Air
to 21% through 32% in 1% increments. The scroll will stop when the button is released, or at 32%.
 Press and hold the Right (Select) button again to scroll
from 32% through 50% in 1% increments, then to Air. The scroll will stop when the button is released, or at Air.
 Note that pressing and releasing the Right (Select) button
advances the FO2 setting from
AIR
to 21 through 50, in
increments of 1% per button depression (no scroll).
Press and release the Left (Advance) button to accept the
setting and revert to
Demo Surface Mode
with the
DEMO icon flashing.
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Fig. 89 - Demo Dive Mode
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Demo Dive Mode
 Press and hold the Right (Select) button for 2 seconds to
access
Demo Dive Mode
. The
DOWN Arrow
will
appear flashing (Fig. 89).
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DEMO
PSI
10 2005
ATR
FEET MAX
O
2
N
2
Descending
DEMO
PSI
10 20 30 40 50 6005
ATR
O
2
N
2
Hint: Quick taps (<2 seconds) of the Right (Select) button starts/stops Descents and Time Acceleration. Quick taps of the Left (Advance) button accesses Alternate displays.
 While the Down Arrow is flashing, tap (press/release) the
Right (Select) button to begin a
Descent
feet (1.5 meters) per real second.
 Tap (press/release) the Right (Select) button during the
Descent to stop the Descent.
 Tap (press/release) the Left (Advance) button during the
Descent, or stopped, to access the Alternate Displays.
 Press and hold the Right (Select) button for 4 seconds to
access
Time Acceleration
. The small clock icon begins
flashing (Fig. 91).
 Tap (press/release) the Right (Select) button to increase
Elapsed Dive Time 1 minute per real time second.
 Tap (press/release) the Right (Select) button during Time
Acceleration to restore normal time rate of 1 second per real second.
 To start an Ascent, tap (press/release) the Right (Select)
button to stop a Descent.
 To revert operation to real Surface Mode, press and hold
Both buttons simultaneously for 2 seconds.
at a rate of 5
Fig. 90 - Dive Mode Setup
Fig. 91 - Time Acceleration
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N
2
DEMO
O
2
1005
ATR
Fig. 92 - Ascent set at 1 fps
N
2
DEMO
O
2
10 2005
ATR
Fig. 93 - Ascent set at 3 fps
80
FEET
PSI
FEET
TOO
FAST
PSI
Ascending
Rate of Ascent can be set for 1 or 3 feet per seconds (fps) prior to start of the Ascent. To change the Rate during an Ascent, it must first be stopped.
 Pressing and holding the Left (Advance) button for 2
seconds will access an and yellow segments of the VARI and small
Ascent Rate
of 1 fps. The green
UP Arrow
will appear with the Arrow flashing (Fig. 92).
 To set the Rate at 3 fps (Too Fast), press and hold the Left
(Advance) button for 2 seconds. The red segment of the VARI will appear together with the graphic TOO FAST and an outer Arrow around the small one (Fig. 93). The Alarm will sound and red LED will flash.
 Pressing and holding the Left (Advance) button for 2
seconds will return the Rate to 1 fps.
 Tap (press/release) the Left (Advance) button while the
Arrow is flashing to begin an Ascent at the Rate set.
 Tap (press/release) the Left (Advance) button during the
Ascent to stop the Ascent.
 Tap (press/release) the Left (Advance) button while the
Ascent is stopped to access Alternate displays.
 Press and hold the button for 2 seconds while the Ascent
is stopped to restart the Ascent.
 Pressing and holding both Buttons simultaneously for 2
seconds will revert operation to real Surface Mode.
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DEMO
PSI
ATR
O
2
N
2
Surfacing from a Simulated Dive
 The Simulator will enter
Demo Surface Mode
upon ascending to 3 feet (1 meter) or shallower.
 Press and hold the Right (Select) button for 4 seconds to
access Time Acceleration. The small Time Clock icon will begin flashing.
 Tap (press/release) the Right (Select) button to increase
Surface Interval Time 1 minute per real time second.
 Tap (press/release) the Right (Select) button during the
Time Acceleration to restore the time rate to normal.
 FO2 can be set 10 minutes after surfacing.  Tap (press/release) the Left (Advance) button to access
FO2 Set Mode. The FO2 graphic and value previously set will appear with the value flashing.
 Press/release the Right (Select) button to increase the FO2
value in increments of 1%, or press and hold it to scroll.
 Tap (press/release) the Left (Advance) button to accept the
FO2 setting and return to Demo Surface Mode.
 To make another dive, press and hold the Right (Select)
button for 2 seconds to access Dive Mode.
 To revert operation to real Surface Mode, press and hold
Both buttons simultaneously for 2 seconds.
(Fig. 94)
Fig. 94 - Demo Surface Mode
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82
Be a -
RESPONSIBLE DIVER
at all times.
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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 Recom­mendations as well as general product information.
GENERAL
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a
X
X
b
Fig. 95 - Case Back
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CARE AND CLEANING
Protect your Pro Plus 2 from shock, excessive temperatures, chemical attack, and tampering. Protect the lens against scratches with a transparent Instrument Lens Protector. Small scratches will naturally disappear underwater.
Soak and rinse the Pro Plus 2 in fresh water at the end of
each day of diving, and check to ensure that the areas around the Low Pressure (Depth) Sensor (Fig. 95a), Download Interface Port (Fig. 95b), 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 running water and towel dry before storing.
 Transport your unit cool, dry, and protected.
INSPECTIONS AND SERVICE
Your Pro Plus 2 should be
inspected annually
Authorized Oceanic Dealer who will perform a factory
X
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
X
days). Oceanic 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.
by an
Page 85
To Obtain Service:
Take your Pro Plus 2 to an Authorized Oceanic Dealer or send it to the nearest Oceanic Regional Distributor Facility.
To return your Pro Plus 2 to Oceanic:
 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 Oceanic Regional Service Facility (see page 96), or to Oceanic USA.
 If shipping to Oceanic USA, obtain an RA (Return Authori-
zation) number by contacting Oceanic at 510/562-0500 or send an e-mail to service@oceanicusa.com.
 Non-warranty service must be prepaid. COD is not
accepted.
 Additional information is available at the Oceanic web
site OceanicWorldWide.com
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NOTE: The procedures that follow must be closely adhered to. Damage due to improper Battery replacement is not covered by the unit's 2 year warranty.
BATTERY REPLACEMENT
The Battery Compartment should only be opened in a dry and clean environment with extreme care taken to prevent the entrance of moisture or dust.
As an additional precautionary measure 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).
Inspect the Buttons, Lens, and Housing to ensure they are not cracked or damaged. If there is any sign of moisture in the module, DO NOT use the Pro Plus 2 until it receives proper service by an Authorized Oceanic Dealer, or the Oceanic factory.
Hot Swap
If the new Battery can be inserted within 8 seconds after the old one is removed (Hot Swap), settings and nitrogen and oxygen calculations for repetitive dives will be retained.
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Battery Removal
Examine the Case Back to locate the Battery Hatch (Fig. 96a):
 Remove the 4 screws that secure the Battery Hatch to the
Housing by turning counter clockwise.
 Lift the Hatch up and away from the Housing.  Lift the Battery, positive (+) end first, out of the Battery
Compartment.
 Remove the Battery Hatch O-ring and inspect it for any
signs of deterioration or deformity. DO NOT use tools to remove the O-ring.
 O-ring replacement is highly recommended to ensure
proper sealing.
 Closely examine the sealing surfaces of the Battery Hatch
and Housing for any signs of damage that might prevent proper sealing. If found, return the Pro Plus 2 to an Autho- rized Oceanic Dealer, and DO NOT attempt to use it until it has received factory service.
 Closely examine the inside of the Battery Compartment for
any signs of corrosion indicating entrance of moisture into the unit.
 If corrosion is found, return the Pro Plus 2 to an Authorized
Oceanic Dealer, and DO NOT attempt to use it until it has received factory service.
(continued on page 88)
X
X
a
Fig. 96 - Battery Hatch
X
X
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Page 88
+
a
Fig. 97 - O-ring Installation
+
Fig. 98 - Battery Orientation
88
Moisture in the Battery Compartment
 If moisture is found, it is best to have the unit inspected
and cleaned by an Authorized Oceanic Dealer.
 If it is necessary to clean the Battery Compartment, flush
the 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').
 Closely check all of the sealing surfaces for any signs of
damage that might impair proper sealing.
 Inspect the Buttons, Lens, and Housing to ensure they are
not cracked or damaged.
Battery Installation
 Replace the Hatch O-ring with a new one. This O-ring
must be a genuine Oceanic part that can be purchased from an Authorized Oceanic Dealer. Use of any other O- ring will void the warranty.
 Lightly lubricate the
grease and place it on the beveled outer edge of the Battery Compartment (Fig. 97a). Ensure that it is evenly seated.
 Place a new 3 volt, CR2, .75 AHr, Lithium Battery
a
(Duracell model DL-CR2 or equivalent) negative end first into the Battery Compartment with the negative end toward the spring (Fig. 98a).
new
Hatch O-ring with silicone
Page 89
Battery Hatch Installation
X
X
X
X
 Ensure that the Battery is properly oriented and the Hatch
O-ring is evenly seated.
 Carefully place the Battery Hatch into position so that it
seats on top of the O-ring, and while holding it in place, secure it with the 4 screws by turning them clockwise. DO NOT attempt to use any other screws.
 Carefully tighten the screws by alternately turning them
each one turn at a time (Fig. 99). Turn the upper left one (a), then the lower right (b), then the lower left (c), then the upper right (d).
 Repeat the sequence until all of the screws are evenly
secure. The outer surface of the Battery Hatch should be flush with the outer surface of the Housing. DO NOT overtighten.
Inspection
 Activate the unit and watch carefully as it performs a full
diagnostic and battery check, and enters Surface Mode. Observe the LCD display to ensure it is consistently clear and sharp in contrast throughout the screen.
If any portions of the display are missing or appear dim,
or if a Low Battery Condition is indicated, return your Pro Plus 2 to an Authorized Oceanic Dealer for a complete evaluation before attempting to use it.
da
c
Fig. 99 - Hatch Installation
b
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Page 90
SPECIFICATIONS
CAN BE USED AS
 Air Computer  Nitrox Computer  Digital Depth Gauge/Timer
NO DECOMPRESSION MODEL Basis:
 Modified Haldanean Algorithm  12 tissue compartments
Data Base:
 Diving Science and Technology (DSAT) - Rogers/
Powell
Performance:
 Tissue compartment halftimes (mins.) Spencers M
values
5, 10, 20, 40, 80, 120, 160, 200, 240, 320, 400, 480  Reciprocal subsurface elimination  60 minute surface credit control for compartments
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 FT
(3, 6, 9, 12, 15, and 18 M)
Altitude Algorithm:
 Based on NOAA tables
Oxygen Exposure Limits:
 Based on NOAA tables
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OPERATIONAL MODES (SURFACE)
 Activation/Diagnostic  Surface  Pre Dive Planning Sequence
(30 to 190 feet / 9 to 57 meters)  Time to Fly Countdown  Desaturation Countdown  Dive Log (Date / Time, Nitrogen, and Oxygen)  Set Mode 1:
 FO2 (Air, 21 to 50% O2)
 Max Depth Alarm (30 to 300 FT /9 to 99 M)
 Elapsed Dive Time Alarm (0:10 to 3:00 hr:min)
 PC Interface (to Download data)  Set Mode 2:
 Units of Measure (Imperial / Metric)
 Hour Format (12 / 24)
 Time (Hour, Minute)
 Date (Year, Month, Day)
 Audible Alarm / LED Warning (On/Off)
 Max TLBG Alarm (1 to 12 segments)
 Air Time Remaining BG Alarm (0 to 60 minutes)
 Turn Press Alarm (1000 to 3000 PSI/69 to 205
BAR)
 End Press Alarm (300 to 1500 PSI/20 to 104 BAR)
 Dive Time Remaining Alarm (0:00 - 0:20 min)
 Max PO2 Alarm (1.20 - 1.60 ATA)
 FO2 50% Default (On/Off)
 Backlight Duration (:00 / :03 / :07 seconds)
 Sampling Rate - memory storage for download
(2, 15, 30, 60 seconds; 2, 5, 10 FT, .5, 1.5, 3 M)
 Digital Gauge Mode (On / Off)
 Water Activation (On / Off)  Simulator Mode
Page 91
SPECIFICATIONS (CONTINUED)
OPERATIONAL MODES (DIVE)
No Decompression Dive:  #1 - Current Depth, Dive Time Remaining, Cylinder Pressure, Bar Graphs  #2 - Current Depth, Dive Time Remaining, Max Depth, Elapsed Dive Time, Cylinder Pressure, Bar Graphs  #3 - Current Depth, Dive Time Remaining, Temperature, Time of Day, Cylinder Pressure, Bar Graphs  #4 - if a nitrox dive - Current Depth, Dive Time Remaining, Current PO2, Cylinder Pressure, Bar Graphs  Secondary - Current Depth, Air Time Remaining, Cylinder Pressure, Bar Graphs
 Safety Stop - Current Depth, Stop Depth (15 FT/5 M), Countdown Timer (3:00 to 0:00 min:sec), Dive Time
Remaining, Cylinder Pressure, Bar Graphs
Digital Gauge Mode:  Default - Current Depth, Max Depth, Time of Day, Elapsed Dive Time, Cylinder Pressure, Bar Graphs  Secondary - Current Depth, Air Time Remaining, Cylinder Pressure, Bar Graphs
Decompression Dive:  #1 - Default - Current Depth, Stop Depth / Time, Total Ascent Time, Cylinder Pressure, Bar Graphs  #2 - Current Depth, Stop Depth / Time, Total Ascent Time, Max Depth, Elapsed Dive Time, Cylinder Pressure,
Bar Graphs  #3 - Current Depth, Temperature, Time of Day, Total Ascent Time, Cylinder Pressure, Bar Graphs  #4 - if nitrox dive - Current Depth, Current PO2, Total Ascent Time, Cylinder Pressure, Bar Graphs
Violation - Conditional, Delayed, and Immediate/Gauge
High PO2 (1.20 to 1.60 ATA)
High Oxygen Accumulation (300 OTU per dive / 24 hr)
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SPECIFICATIONS (CONTINUED)
DISPLAY RANGE/RESOLUTION
Numeric Displays: Range: Resolution:
 Dive Number 0 to 24 1  Depth 0 to 330 FT (0 to 99.9 M) 1 FT (.1 M)  Maximum Depth 330 FT (99.9 M) 1 FT (.1 M)  FO2 Set Point Air, 21 to 50 % 1 %  PO2 Value 0.00 to 5.00 ATA .01 ATA  Dive Time Remaining 0:00 to 9:59 hr:min 1 minute  Air Time Remaining 0:00 to 9:59 hr:min 1 minute  Total Ascent Time 0:00 to 9:59 hr:min 1 minute  Safety Stop Time 3:00 to 0:00 min:sec 1 second  Decompression Stop Time 0:00 to 9:59 hr:min 1 minute  Elapsed Dive Time 0:00 - 9:59 hr:min 1 minute  Surface Time 0:00 - 23:59 hr:min 1 minute  Dive Log Surface Interval 0:00 - 23:59 hr:min 1 minute  Time to Fly 23:50 - 0:00 hr:min* 1 minute
 Time to Desaturate 23:50 - 0:00 hr:min* 1 minute
 Temperature 0 to 99°F (-9 to 60°C) 1°  Cylinder Pressure 0 to 5000 PSI (0 to 352 BAR) 10 PSI (.5 BAR)
Special Displays: Occurrence  Diagnostic Display After Manual Activation  Out of Range (- - -) >330 FT (>99.9 M)  Gauge Mode Countdown Timer 23:50 to 0:00 hr:min (after violation)
(* starting 10 min after the dive)
(* starting 10 min. after the dive)
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SPECIFICATIONS (CONTINUED)
BAR GRAPHS
Tissue Loading Bar Graph: segments Oxygen (O2) Bar Graph: segments
 No Decompression zone (green) 9  Normal zone (green) 4  No Deco Caution zone (yellow) 2  Caution zone (yellow) 1  Decompression Warning zone (red) 1  Danger zone (red) 1
Variable Ascent Rate Indicator: 60 feet (18 m) & Shallower Deeper than 60 feet (18 m)
segments feet/min meters/min segments feet/min meters/min
 Normal Zone (Green) 1 11 - 15 3.5 - 4.5 1 21 - 30 6.5 - 9  Normal Zone (Green) 2 16 - 20 5 - 6 2 31 - 40 9.5 - 12  Normal Zone (Green) 3 21 - 25 6.5 - 7.5 3 41 - 50 12.5 - 15  Caution Zone (Yellow) 4 26 - 30 8 - 9 4 51 - 60 15.5 - 18  Too Fast Zone (Red - flashing) 5 > 30 > 9 5 > 60 > 18
OPERATIONAL PERFORMANCE
Function: Accuracy:
 Depth ±1% of full scale  Timers 1 second per day
Dive Counter:
 Displays Dives #1 to 24, 0 if no dive made yet  Resets to Dive #1, upon diving (new activation period)
Dive Log Mode:
 Stores 24 most recent dives in memory for viewing  After 24 dives, adds 25th dive in memory and deletes the first dive
0 0 - 10 0 - 3 0 0 - 20 0 - 6
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SPECIFICATIONS (CONTINUED)
OPERATIONAL PERFORMANCE (continued)
Altitude:
 Operational from sea level to 14,000 feet (4,270 meters) elevation  Measures ambient pressure every 30 minutes and when manually activated (no when wet contacts are bridged)  Compensates for Altitude when manually activated (no compensation if activated by immersion in water)  Compensation begins at 2,000 feet (610 meters) elevation and every 1,000 feet (305 meters) higher
Power:
 Battery 1 - 3 vdc, CR2, .75 Ahr, Lithium battery (Duracell model DL-CR2 or equivalent)  Shelf life Up to 5 years  Replacement User replaceable (annual recommended)  Life expectancy 50 dive hours (if 1 - 1 hour dive per dive day) to over 150 dive hours (if 3 - 1 hour dives per
dive day)
Battery Indicator: segments displayed estimated power remaining
Activation:
 Manual - push button (recommended)  Automatic - by immersion in water (as a backup if set ON)  H2O graphic indicates Wet Contacts are bridged (unit must be dried prior to transport or storage)  Cannot be manually activated deeper than 4 FT (1.2 M), if the Water Activation feature is set OFF.  Cannot be activated at elevations higher than 14,000 feet (4,270 meters)
Shutoff:
 Automatically shuts off if no dive is made within 120 minutes after initial activation. Reactivation required.  Automatically shuts off 24 hours after last dive (will reactivate if the H2O graphic is displayed).  Cannot be shut off manually.
all 25 to 100% 1 (inside) < 25%
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SPECIFICATIONS (CONTINUED)
OPERATIONAL PERFORMANCE (continued)
Setting FO2:
 Automatically set for 'Air' upon activation  Remains set for Air unless an FO2 numerical value is set  Nitrox set points from 21 to 50 %  If set for 21%, remains set for 21% until changed  If set for >21%, it reverts to 50% 10 minutes after the dive, if the FO2 Default is ON. If the FO2 Default is OFF, the
value will remain at the value set.
Operating Temperature:
 Out of the water - between 20 °F and 140 °F (-6 and 60 °C)  In the water - between 28 °F and 95 °F (-2 and 60 °C).
At extremely low temperatures, the LCD may become sluggish, but this will not affect it's accuracy. If stored or transported in extremely low temperature areas (below freezing), you should warm the unit and its battery with body heat before diving.
ACCESSORIES (optional items available from your Authorized Oceanic Dealer):  Lens Protector - adheres to lens face, prevents scratches  PC download package (hardware and software)  Battery Kit - includes 1 Battery, 1 Battery Hatch O-ring, Silicone Grease
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OCEANIC WORLD WIDE
OCEANIC USA
2002 Davis Street
San Leandro, CA 94577
Tel: 510/562-0500
Fax: 510/569-5404
Web site: http://www.OceanicWorldwide.com
service@oceanicusa.com
Oceanic Central/North Europe
Wendelstein, Germany
Tel: 09129-9099780 Fax: 09129-9099789
E-mail: office@oceanic.de
Oceanic South Europe
Genova, Italy
Tel: 0039-010-8382006 Fax: 0039-010-8365360
E-mail: info@oceanicse.it
Oceanic SW, Ltd
Devon, United Kingdom
Tel: 44-1-404-89-1819 Fax: 44-1-404-89-1909
E-mail: info@oceanicuk.com
Oceanic France
Marseille, France
Tel: 0033.491.25.37.78 Fax: 0033.491.72.34.48
E-mail: oceanicfrance@wanadoo.fr
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Oceanic Diving Australia Pty. Ltd
Sorrento, Victoria, Australia
Tel: 61-3-5984-4770 Fax: 61-3-5984-4307
E-mail: sales@oceanicaus.com.au
Oceanic Asia-Pacific Pte. Ltd
Singapore
Tel: 65-6391-1420 Fax: 65-6297-5424
E-mail: info@oceanicasia.com.sg
Oceanic Japan
Yokohama, Japan
Tel: 045-575-6671 Fax: 045-575-6673
E-mail: oceanic@gol.com
Oceanic International (Pacific)
Kapolei, Hawaii
Tel: 808-682-5488 Fax: 808-682-1068
E-mail: oceanicint@aol.com
Page 97
INSPECTION / SERVICE RECORD
Serial Number _______________________
Date of purchase _____________________
Purchased from ______________________
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Below to be filled in by an Authorized Oceanic Dealer:
Date Service Performed Dealer / Technician
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NOTES
Page 99
RESET FEATURE
This dive computer is configured with a RESET feature that allows data to be cleared, including Nitrogen and Oxygen calculations, FO2 set point, Log Mode entries, and Download data.
WARNING: Reset after a dive and subsequent use for a repetitive dive con­ducted by the same diver could result in serious injury to or death.
RESET PROCEDURE
 While in SURFACE MODE (new activation period or greater than a 10 minute post
dive surface interval), press the Left (Advance) button one (1) time to access PLAN MODE.
 While 30 feet (or 9 meters) is displayed in the PLAN MODE, press and hold Both
buttons until SET 2 appears, then release the buttons.
 Press and release the Left (Advance) button to display the first 2 digits of the assigned
KEY CODE, flashing as 00.  Press and release the Right (Select) button to increase the digits to 01.  Press and release the Left (Advance) button again to display the second 2 digits of the
KEY CODE, flashing as 00.  Press and release the Right (Select) button to increase the digits to 01.  Press and release the Left (Advance) button to complete the RESET operation and turn
the unit OFF.
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OCEANIC® USA
2002 Davis Street
San Leandro, CA 94577
Tel: 510-562-0500
http://www.OceanicWorldwide.com
Fax: 510-569-5404
© 2002 Design, 2002
Doc. No. 12-2328-r05 (2/28/07)
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