Genesis React Pro Owner's manual

OWNER'S MANUAL

React

Pro

2

RESPONSIBLE COMPUTER DIVING

Since the advent of dive computers, it is a common mistake to assume that the old traditional rules of diving no longer apply,

but the truth is just the opposite. Before you dive using your ReACT Pro, keep these basic rules in mind:

 Plan each dive, and dive your plan - Your ReACT Pro was not designed to make decisions for you, only to provide

you with the information you need to make responsible decisions for yourself. This begins with a dive plan that

will help you avoid a low air or decompression situation.

 Do not plan any dive that exceeds your training or experience level.

 Inspect your computer before every dive - If it shows any signs of damage or abnormal function, DO NOT dive with

it until it has received factory service.

 Make your deepest dive first - When making repetitive dives, it is imperative to ensure that each consecutive dive

is shallower than the one before. This will allow your body's slower tissues to continue outgassing nitrogen.

 Make the deepest part of your dive first, and gradually work your way to the surface using a staircase profile - The

ability to perform multilevel diving is one of the most important contributions of a dive computer, and you should

take advantage of it. It will increase your bottom time and at the same time decrease your risk of decompression

sickness.

 Ascend slowly by following an ascent line whenever possible, or by ascending diagonally toward the surface - Watch

the Ascent Rate Indicator closely while you ascend, and keep it in the green zone as much as possible.

 A Safety Stop of 3 minutes or more is recognized as a prudent action to reduce the probability of bubble forma-

tion in divers.

Responsible

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ReACT Pro

The following symbols are used throughout this manual to bring your attention to situations that require special consid-

eration. Be sure to read and follow all instructions carefully.

A NOTE is used to emphasize an important maintenance technique.

A CAUTION is used before a maintenance technique that will result in damage to parts if that

technique is not followed carefully.

A WARNING is used before a procedure that will result in serious injury or death if the procedure

is not followed carefully.

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WARNINGS:

 The ReACT Pro is intended for use by recreational divers who have successfully completed a nationally

recognized course in scuba diving, and diving with enriched nitrogen-oxygen (nitrox) breathing gas

mixtures.

 It is intended only for no decompression diving, NOT intentional decompression diving.

 It must not be used by untrained persons who may not have knowledge of the potential risks and haz-

ards of scuba diving, and diving with enriched nitrogen-oxygen (nitrox) mixtures.

 You must obtain scuba certification, and certification in diving with enriched nitrogen-oxygen mixtures

(nitrox) before using the ReACT Pro if you have not already done so.

 It is NOT for use by military and commercial divers.

 It should NOT be utilized for any competitive, or repetitive square wave or decompression diving, as it is

intended solely for recreational use and no decompression multilevel diving.

 As with all underwater life support equipment, improper use or misuse of this product can cause seri-

ous injury or death.

 Never participate in sharing or swapping of a dive computer.

 Conduct your dives in such a manner so as to insure that you continuously check the computer's

proper function.

 Read and understand this owners manual completely before diving with the ReACT Pro.

 If you do not fully understand how to use this dive computer, or if you have any questions, you should

seek instruction in its use from your authorized Genesis dealer before you utilize this product.

 Never participate in sharing or swapping of a dive computer. Doing so may result in injury or death.

The ReACT Pro provides information based upon a divers personal dive profile, and therefore must not

be shared between divers. You should never, under any circumstances, swap your computer with an-

other unit between dives, or share your computer with another diver underwater.

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ReACT Pro

LIMITED TWO-YEAR WARRANTY

Genesis Scuba guarantees, to the original purchaser only, that the ReACT Pro will be free of defects in materials and/or craftsmanship under normal recreational

multilevel scuba use for two years from date of purchase, provided proper care and annual service are performed as described within this owners guide. Should your

ReACT Pro prove to be defective for any reason (other than those listed in the limitations section below) it will be repaired or replaced (at Genesis Scuba's discretion)

free of charge excluding shipping and handling charges.

This warranty will be considered void if the registration card is not filled out completely at the time of purchase and mailed to Genesis Scuba within 30 days of pur-

chase, and/or if the annual inspection is not done according to this owners manual. This warranty is non-transferrable and applies to the original purchaser only. All

correspondence concerning this warranty must be accompanied by a copy of the original sales receipt and a copy of the owners portion of the warranty registration

card including the annual inspection record.

Once each year you must return the ReACT Pro to an Authorized Genesis Dealer within 30 days of the original purchase date anniversary to keep the

two year limited warranty in force. Annual inspection includes verification of depth accuracy and proper general function. Labor charges for the annual inspec-

tion are not covered by the warranty. You must provide a copy of the original sales receipt and a copy of the owners portion of the warranty registration card includ-

ing the annual service record to obtain warranty service.

Statement of Limitations - General:

Warranty does not cover damage from accident, abuse, battery leakage, tampering, lack of proper care and maintenance and/or proper annual servic-

ing, or improper use of the ReACT Pro. Modifications or repair by anyone other than a Genesis Sales and Service Center authorized to service the ReACT Pro

will void the warranty. Genesis Scuba will not be responsible for recovery or replacement of the product in the event of loss or theft. Genesis Scuba, its distributors,

and retailers make no warranties, either expressed or implied, with respect to this product or its owners manual except those stated in the preceding paragraphs. In

consideration of the sale of the ReACT Pro to you, you agree and understand that in no event will Genesis Scuba, its distributors or retailers, be held li-

able for any personal injuries resulting from its operation, or for any other damages whether direct, indirect, incidental, or consequential even if Genesis

Scuba is advised of such damages.

Some states do not allow the exclusion or limitation of implied warranties or liabilities for incidental or consequential damages, so the above limitation may not apply

to you.

Warranty does not extend to plastic gauge face, o-rings, batteries, or damage due to accident, abuse, modification, or tampering.

6

COPYRIGHT NOTICE

This owners manual is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any elec-

tronic medium or machine readable form without prior consent in writing from Genesis Scuba / 2002 Design.

ReACT Pro Owner's Manual, Doc. No. 12-2371

TRADEMARK NOTICE

Genesis Scuba, Genesis, and the Genesis Scuba logo are registered trademarks of Genesis Scuba, ReACT Pro and Hydroglow are also trademarks of Genesis

Scuba. All rights are reserved.

PATENT NOTICE

U.S. Patents have been issued, or applied for, to protect the following design features:

Data Sensing and Processing Device (U.S. Patent no. 4,882,678), Dive Time Remaining (U.S. Patent no. 4,586,136), and Ascent Rate Indicator (U.S. Patent no.

5,156,055).

DECOMPRESSION MODEL

The programs within the ReACT Pro simulate the absorption of nitrogen into the body by using a mathematical model. This model is merely a way to apply a lim-

ited set of data to a large range of experiences. The ReACT Pro dive computer model is based upon the latest research and experiments in decompression theory.

Still, using the ReACT Pro, just as using the U.S. Navy (or other) No Decompression Tables, is no guarantee of avoiding decompression sickness, i.e.

the bends. Every divers physiology is different, and can even vary from day to day. No machine can predict how your body will react to a particular dive pro-

file.

7

ReACT Pro

CONTENTS

FEATURES and DISPLAYS ......................................................................................................................... 11

Introduction .................................................................................................................................................... 12

Control Buttons .............................................................................................................................................. 13

Intuitive Displays ............................................................................................................................................ 14

Bar Graphs ................................................................................................................................................ 15

Ascent Rate Indicator ............................................................................................................................. 15

Nitrogen Bar Graph ................................................................................................................................ 16

Depth Displays .......................................................................................................................................... 17

Date Display .............................................................................................................................................. 17

Time Displays ............................................................................................................................................ 18

Temperature Display .................................................................................................................................. 19

Backlight Feature ........................................................................................................................................... 19

Operating Temperature .................................................................................................................................. 19

Audible Alarm ................................................................................................................................................ 20

ACTIVATION and SETUP ............................................................................................................................ 21

Push Button Activation ................................................................................................................................... 22

Water Contact Activation ................................................................................................................................ 23

Surface Mode ................................................................................................................................................ 24

Entering Settings ........................................................................................................................................... 24

To Set FO2 (50%) Default .......................................................................................................................... 25

To Set Units of Measure ............................................................................................................................. 26

To Set Date/Time ....................................................................................................................................... 26

To Set Dive Profile Data Sampling Rate ..................................................................................................... 28

To Set Alarms ............................................................................................................................................ 28

To Set Wet Activation ................................................................................................................................. 29

Responsible

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CONTENTS (CONTINUED)

Reset (Clear) ................................................................................................................................................. 30

PRE DIVE and DIVE MODES ....................................................................................................................... 31

Pre Dive Modes ............................................................................................................................................. 32

FO2 Mode.................................................................................................................................................. 32

FO2 Set for Use with Air ........................................................................................................................... 33

FO2 for Use with Nitrox ............................................................................................................................ 33

FO2 50% Default ON ............................................................................................................................. 33

FO2 50% Default OFF ........................................................................................................................... 34

Setting FO2 for Use with Nitrox .............................................................................................................. 34

Plan Mode.................................................................................................................................................. 35

No Decompression Dive Mode ....................................................................................................................... 36

No Decompression Dive Mode Safety Stop ............................................................................................... 38

POST DIVE MODES ..................................................................................................................................... 39

Post Dive Surface Mode ................................................................................................................................ 40

Transition Period ........................................................................................................................................ 40

After the Transition Period (the First 2 Hours) ............................................................................................41

To view Temperature and O2SAT ........................................................................................................... 41

To access FO2 Mode ............................................................................................................................. 41

To access Plan Mode ............................................................................................................................. 42

To access Fly/Desat Mode ..................................................................................................................... 42

Log Mode ................................................................................................................................................... 43

After the First 2 Hours ................................................................................................................................ 45

External Access Mode ............................................................................................................................... 46

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ReACT Pro

CONTENTS (CONTINUED)

SPECIAL SITUATIONS ................................................................................................................................ 47

Emergency Decompression ........................................................................................................................... 48

Nitrogen Bar Graph .................................................................................................................................... 48

Decompression Dive Mode ........................................................................................................................ 49

Managing Decompression Stops................................................................................................................ 51

Violation Modes ............................................................................................................................................. 52

Conditional Violation Mode ......................................................................................................................... 52

Delayed Violation Mode .............................................................................................................................. 53

Immediate Violation Mode and Gauge Mode .............................................................................................. 55

Permanent Violation ................................................................................................................................... 56

Oxygen Exposure .......................................................................................................................................... 57

Partial Pressure of Oxygen ........................................................................................................................ 57

High PO2 Dive Mode ............................................................................................................................. 57

Oxygen Accumulation ................................................................................................................................ 58

High O2 Saturation ................................................................................................................................ 59

Unexpected Loss of Displayed Information .................................................................................................... 60

Special Warnings and Additional Safety Information ....................................................................................... 61

CARE, INSPECTION, and SERVICE ........................................................................................................... 63

Care and Cleaning ......................................................................................................................................... 64

Annual Inspections and Service ..................................................................................................................... 65

Battery Life .................................................................................................................................................... 66

Low Battery Condition .................................................................................................................................... 66

Battery Replacement ...................................................................................................................................... 67

Responsible

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CONTENTS (CONTINUED)

REFERENCE ................................................................................................................................................ 73

Dive Time Remaining ..................................................................................................................................... 74

Altitude Diving ................................................................................................................................................ 75

Flying After Diving .......................................................................................................................................... 76

Nitrox Diving .................................................................................................................................................. 77

Multiple Tissue Tracking ................................................................................................................................ 78

Repetitive Decompression Diving ................................................................................................................... 79

No Decompression Limits .............................................................................................................................. 80

Specifications ................................................................................................................................................ 81

Glossary ........................................................................................................................................................ 84

Inspection / Service Record ........................................................................................................................... 86

Full LCD Display ............................................................................................................................................ 87

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ReACT Pro

FEATURES

and

DISPLAYS

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INTRODUCTION

Congratulations on your recent purchase of the Genesis ReACT Pro !

Your ReACT Pro presents the information that you need before, during, and after your air (or nitrox) dives using an intuitive

combination of easy to read displays and unique identification icons.

Tissue loading of nitrogen and ascent rate are presented as segmented bar graphs alongside color coded reference indicators

that bring quick focus to these important status displays.

As you progress through this instructional guide, you will become familiar with all of the unique functions and features avail-

able and see examples of the displays that you could expect to see in the various operational modes. Although it will require

an initial investment of time to become acquainted with the various icons and symbols, youll soon agree that your ReACT

Pro is easy to understand and use.

Due to the importance that you understand the ReACT Pro thoroughly prior to using it, information will be expanded upon

and some refreshed as you proceed. Relax and read through the complete owner's manual.

It is extremely important that you:

 Read this owner's manual in sequence and understand it completely before attempting to use the ReACT Pro.

 Check the ReACT Pro frequently during your dive.

 You must also be a trained diver, certified by a recognized training agency in SCUBA diving.

 Prior to using the oxygen related features of the ReACT Pro, you must also be trained and certified for diving

with enriched nitrogen-oxygen (nitrox) breathing gas mixtures by a recognized training agency.

13

ReACT Pro

Remember that the rules you learned in your basic SCUBA certification course still apply to the diving you will do while us-

ing a dive computer - some will become even more important. 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.

WARNING: Inspect your ReACT Pro prior to every dive, checking for any signs of the entrance of

moisture, damage to the buttons, or damage to the LCD display. If these or other signs of damage

are found, return the unit to an Authorized Genesis Scuba Dealer. DO NOT attempt to use it until it

has received factory service.

CONTROL BUTTONS

The ReACT Pro is a unique dive computer with interactive controls that allow you to select various display options and access

specific information when you choose to see it. These are referred to as the LEFT (L) and RIGHT (R) buttons (Fig. 1).

The control buttons can be pressed repeatedly, or held in to scroll and continue as you set or ac-

cess different display modes.

On the surface the control buttons are used to activate the ReACT Pro; activate the backlight; ac-

cess the Date/Time, Fly, Plan, and Log modes; set variables such as FO2, Date/Time, etc.

The buttons can also be used to access an External Access mode to download (copy) dive data to

a unique PC log/profile program.

Underwater, the buttons are used to activate the backlight and view Alternate displays of infor-

mation.

Fig. 1 - Control Buttons

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INTUITIVE DISPLAYS

The ReACT Pro uses Genesis Scuba's unique Dive Profile Diagram (Fig. 2a) and easy to under-

stand symbols, displaying information where you would expect it to be when looking at a log pro-

file.

When you enter Special Situations, such as Decompression, High PO2, High O2, and Out of

Range modes, an UP Arrow symbol (Fig. 2b) will appear in the middle portion of the display as a

warning that a controlled ascent is required.

It is imperative that you understand the formats, ranges, and values of the information presented

by the ReACT Pro's numeric and graphic displays to avoid any possible misunderstanding that

could result in error.

NOTE: Throughout this owner's manual reference is made to the term

''breathing gas'. The rationale being that the ReACT Pro can be used for

'air' dives or 'nitrox' dives. For clarity these terms are defined as -

Breathing Gas - the gaseous mixture breathed during a dive.

Air - a breathing gas that contains approximately 21% oxygen and 79%

nitrogen (nature's common nitrogen-oxygen mixture).

Nitrox - a nitrogen-oxygen breathing gas that contains a higher fraction of

oxygen (22 to 50%) than air.

FT

PO2

NITROX

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Fig. 2 - Profile & Arrow

Symbols

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ReACT Pro

BAR GRAPHS

Two segmented bar graphs appear around the perimeter of the screen next to green, yellow, and

red color coded portions of the peripheral decal that denote normal, caution, and danger zones,

respectively.

When underwater, you can quickly focus on the bar graphs to make sure that they are in the

green and you are not getting too close to the no decompression limit or ascending too fast.

Ascent Rate Indicator (ARI)

The Ascent Rate Indicator located along the bottom of the LCD (Fig. 3a) is provided to help you

avoid excessive Ascent Rates by providing a visual representation of ascent speed, rather than

just showing that you are ascending too fast.

The LCD displays up to 5 segments that may be considered an Ascent Rate speedometer. Green

is a 'normal' rate, yellow a 'caution' rate, and red is 'Too Fast'. The segments of the Ascent Rate

Indicator represent 2 sets of speeds which change at a reference depth of 60 feet (18 meters).

Refer to the chart at the right for segment values.

When your ascent rate exceeds the maximum recommended rate of 60 feet (18 meters) per

minute when deeper than 60 feet (18 meters) or 30 feet (9 meters) per minute when shallower

than 60 feet (18 meters), the bar graph segments will enter the red 'Too Fast' zone at which time

the Audible Alarm will sound and all 5 segments will flash once per second until your ascent

speed is slowed.

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Fig. 3 - ARI

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Ascent Rate Indicator

Deeper than 60 feet (18 m)

Segments Ascent Rate =

Displayed FPM MPM

0 0-20 0 - 6

1 21-30 6.5-9

2 31-40 9.5-12

3 41-50 12.5-15

4 51-60 15.5-18

5 >60 >18

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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Nitrogen Bar Graph (NiBG)

The Nitrogen Bar Graph located around most of the perimeter of the LCD (Fig. 4a) represents

tissue loading of nitrogen, showing your relative no decompression or decompression status. As

your depth and elapsed dive time (BT) increase, segments will add to the graph, and as you as-

cend to shallower depths, the bar graph will begin to recede, indicating that additional no decom-

pression time is allowed for multilevel diving.

The Nitrogen Bar Graph also assists you with managing decompression by filling red 'ceiling

stop required' segments which are described in more detail in the Special Situations section of

this manual.

The Nitrogen Bar Graph monitors 12 different nitrogen compartments simultaneously and dis-

plays the one that is in control of your dive at that time. It is divided into a green No Decom-

pression zone, a yellow Caution zone, and a red DECO (decompression) zone.

The yellow Caution zone gives a visual representation of just how close you are to the no decom-

pression limit which allows you to make a decision regarding safety stop duration or necessity.

The red DECO zone alerts you to focus your attention on the current required DECO stop 'ceil-

ing' depth indicated by the bar graph segment. When stop depths of 50 FT (15 M) and 60 FT (18

M) are required, all red segments are displayed and the required stop depth (50 or 60, or 15 or

18) is displayed numerically.

Fig. 4 - Nitrogen BG

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ReACT Pro

DEPTH DISPLAYS

The Depth display indicates Depths from 0 to 330 feet (99.5 meters) in 1 foot (.5 meter) incre-

ments.

During a dive, Current Depth is displayed continuously on the Main display with the symbol FT

(or M) below it (Fig. 5a).

When the LEFT button is pressed 1 time to view the first Alternate display, Maximum Depth

and the symbols MAX and FT (or M) are displayed in place of Current Depth.

In the event that you descend deeper than 330 feet (99.5 meters), the Depth display will show

three dashes (- - -) to indicate that you have gone 'out of range'. This is described in more detail

in the Special Situations section of this manual.

During a Decompression Dive, required Ceiling Stop Depths of 50 FT (15 M) and 60 FT (18 M)

are displayed in the lower/right portion of the LCD. This is described in more detail in the Spe-

cial Situations section of this manual.

DATE DISPLAY

The Date is displayed when the ReACT Pro is in Surface Mode (Fig. 6a/b). It is not displayed in

any other modes on the surface or during Dive Modes.

AIR

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Fig. 5 - Depth (95 FT)

Fig. 6 - Date (June 13)

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TIME DISPLAYS

The ReACT Pro has three time displays.

The largest display is the Main Time display (Fig. 8 - top row of digits). Indicated are theoreti-

cal No Decompression Limit (NDL), Oxygen Tolerance Limit (OTL), Elapsed Dive Time (BT),

Total Ascent Time (TAT), or Surface Time with the Wave symbol below it, depending on the op-

erating mode that the ReACT Pro is in.

A second time display (Fig. 8 - middle row of digits) indicates Decompression Stop Time re-

quired at the stop depth indicated, or Time to Desaturate after a dive, depending on the operating

mode that the unit is in.

The third time display (Fig. 8 - bottom row of digits) indicates Time of Day, or Time to Fly after

a dive, depending on the operating mode that the unit is in.

Each display is described in more detail in subsequent sections of this manual.

Time displays are shown in hour:minute format (i.e., 1:09 represents one hour and nine minutes,

not 109 minutes!). The colon that separates hours and minutes blinks once per second when the

display is indicating real time such as Surface Time, Bottom Time, and Time of Day. NDL,

OTL, TAT, Deco Stop Time, Time to Fly, and Time to Desaturate are calculated projections of

time and use a solid (non-blinking) colon to indicate that they are counting down.

Fig. 8 - Time Displays

TAT

OTL

BT

STOP

AM

PM

SAT

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ReACT Pro

TEMPERATURE DISPLAY

While in the Surface Mode, Ambient Temperature (Fig. 9a) will be displayed for 10 seconds in

place of Surface Time when the LEFT button is pressed. During a dive, Water Temperature is

displayed when the LEFT button is pressed 2 times to view the Second Alternate display.

If the Temperature exceeds a value of '99', two dashes ( - - ) will be displayed on the screen until

the unit's temperature decreases to '99'.

While Temperature is displayed, access can be gained to a Reset feature described later.

BACKLIGHT FEATURE

On the surface, while in Surface Mode or Fly Mode, the ReACT's Hydroglow Backlight will il-

luminate the display when the RIGHT button is pressed and released. If the button is kept de-

pressed, the Backlight will not come on.

During a dive, the Backlight will illuminate the display when the RIGHT button is pressed. The

display will remain illuminated as long as the Button is pressed, plus 10 seconds after being re-

leased.

OPERATING TEMPERATURE

The ReACT Pro will operate in water temperatures from 28° to 95° F (-2 to 35 °C) and out of the

water from 20° to 140°F (-6 to 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 tempera-

ture areas (below freezing), warm the module and battery with body heat before diving.

Fig. 9 - Temperature

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AUDIBLE ALARM

When Cautionary situations activate the Alarm, the ReACT Pro will emit a beeping sound as a warning. When the situation

corrected, the Alarm will cease. It will sound again if the same condition returns, or another Alarm condition occurs.

A single BEEP is emitted -

 after the unit performs a Diagnostic check upon push button activation.

 upon ascending to the No Deco Safety Stop depth of 20 feet (6 meters).

One BEEP per second is emitted for 10 seconds-

 upon entry into Decompression Mode.

 when PO2 reaches 1.40 ATA.

 when PO2 reaches 1.60 ATA.

 upon Ascending above a Required Decompression Stop Depth.

 upon Descending deeper than 330 feet (99.5 meters).

 when Ascent rate exceeds 60 feet (18 meters) per minute when depth is greater than 60 feet (18 meters), or 30 feet (9

meters) per minute at 30 feet (9 meters) or shallower. The Beeping will continue until the Ascent speed is reduced.

 when O2 Accumulation becomes equal to or greater than allowable per dive limit, or limit for a 24 hour period.

 when the Decompression obligation requires a Stop Depth greater than 60 feet (18 meters).

A single long BEEP is emitted for 3 seconds -

 when above a required Decompression Stop Depth for more than 5 minutes.

 when the Decompression obligation requires a Stop Depth greater than 70 feet (21 meters).

 upon being on the surface for 5 minutes after a Delayed Violation (described in the Special Situations section).

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Genesis React Pro Owner's manual

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