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FULL LCD DISPLAY 1a. NiBG - (No Deco) 1b. NiBG - (No Deco Caution) 1c. NiBG - (Deco) 2a. ARI - (Normal) 2b. ARI - (Caution) 2c. ARI - (Too Fast) Dive Profile icon - Plan or Dive Mode BT BT Operating Mode icon - AIR or NITROX TAT TAT Wave icon - Surface Time or Dive Mode...
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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.
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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.
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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.
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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 limited 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.
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 ............................
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CONTENTS (CONTINUED) Set Depth Alarm ............................ 27 Set Bottom Time Alarm ......................... 27 Set Reserve Time Alarm ........................28 Set 2 Group .............................. 28 Set Units ............................... 28 Set Date Format ........................... 29 Set Date ..............................29 Set Hour Format ........................... 30 Set Time ..............................
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ReACT Pro CONTENTS (CONTINUED) POST DIVE MODES ............................ 43 Surface Mode ............................... 44 Transition Period ............................44 After the Transition Period (the First 2 Hours) ..................45 To access Fly/Desat ..........................45 Log Mode .............................. 46 After the First 2 Hours ..........................48 SPECIAL SITUATIONS ..........................
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CONTENTS (CONTINUED) CARE, INSPECTION, and SERVICE ......................61 Care and Cleaning ............................62 Annual Inspections and Service ........................63 Battery Life ..............................64 Low Battery Condition ........................... 64 Battery Replacement ............................ 65 REFERENCE ..............................71 Dive Time Remaining ............................ 72 Altitude ................................
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.
CONTROL BUTTONS The ReACT Pro is a unique dive computer with interactive controls that allow you to select vari- ous display options and access specific information when you choose to see it. These are referred to as the A (Advance) and S (Select) buttons (Fig. 1).
INTUITIVE DISPLAYS The ReACT Pro uses Genesis Scuba's unique Dive Profile icon (Fig. 2a) and easy to understand icons, displaying information where you would expect it to be when looking at a log profile. When you enter special situations, such as Decompression, High PO2, High O2, and Out of Range modes, an UP Arrow icon (Fig.
ReACT Pro BAR GRAPHS Two segmented Bar Graphs appear around the perimeter of the screen next to green, yellow, and Deeper than 60 FT (18 M) Segments Ascent Rate = red color coded portions of the peripheral decal that denote normal, caution, and danger zones, re-...
Nitrogen Bar Graph (NiBG) The Nitrogen Bar Graph located around most of the perimeter of the LCD (Fig. 4a) represents tis- sue loading of nitrogen, showing your relative no decompression or decompression status. As your depth and bottom time (BT) 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.
DATE DISPLAY NITROX NITROX NITROX The Date (Month_Day) 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 dives. Fig. 6 - Date (August 27)
Total Ascent Time (TAT), or Surface Time (indicated by the Wave icon below it), depending on the operating mode that the ReACT Pro is in. A second time display (Fig. 8 - middle row of digits) indicates Decompression Stop Time required at the stop depth indicated, or Time to Desaturate after a dive, depending on the operating mode that the unit is in.
Button is pressed, plus 10 seconds after being released. OPERATING TEMPERATURE The ReACT Pro will operate in water temperatures from 28° to 95° F (-2 to 35 °C) and out of the NITROX...
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.
Backup Activation (only if Wet Activation is set ON) As a backup, the React Pro will also automatically activate by water contact. This is accom- plished by bridging the gap between contacts located on the button stems and back of the case.
ReACT Pro SURFACE MODE The Surface Main screen (Fig. 12), identified by the Surface Time (hr:min with colon flashing) above the Wave icon, follows Diagnostic Mode after Activation and upon surfacing after a dive. Information also includes the Low Battery icon (if low), AIR (or NITROX) icon (blank if set for Gauge Mode), Date (month_day, or day_month), Time of Day (with AM or PM icon if 12 Hour Format, none if 24 Hour Format), and NiBG if any after a dive.
Set Mode Access/Timing While in Surface Mode, depress both buttons simultaneously and hold - • after 2 seconds, the Set 1 screen appears (Fig. 14) • after 2 more seconds, the Set 2 screen appears (similar to Set 1) • Access is gained by releasing the buttons during the 2 seconds that the Set 1 or 2 screen is displayed, then pressing/releasing the A button until the selection to be set appears.
ReACT Pro SET FO2 Factory set for AIR, FO2 can also be set to values between 21 and 50% in increments of 1%. • While viewing the Set 1 screen, press/release the A (left) button 2 times (< 2 sec each time), the Set FO2 screen appears with the Set Point flashing (Fig.
SET AUDIBLE ALARM Factory set ON, the Audible Alarm feature can be set to OFF. • While viewing the Set 1 screen, press/release the A (left) button 4 times (< 2 sec each time), the Set FO2 Default screen appears with the Set Point flashing (Fig. 17). •...
ReACT Pro SET DEPTH ALARM Factory set for 330 FT, the Alarm can be set to values between 30 FT (3 M) and 330 FT ( 99 M). • While viewing the Set 1 screen, press/release the A (left) button 6 times (< 2 sec each time), the Set Depth Alarm screen appears with the Set Point flashing (Fig.
SET RESERVE TIME (NDL/OTL) ALARM Factory set for 0:05 (hr:min), the Alarm can be set to values between 0:01 and 0:30 (hr:min). • While viewing the Set 1 screen, press/release the A (left) button 8 times (< 2 sec each time), the Set Reserve Time Alarm screen appears with the Set Point flashing (Fig.
ReACT Pro SET DATE FORMAT Factory set for Month_Day, the Date Format feature can be set to Day_Month. • While viewing the Set 2 screen, press/release the A (left) button 2 times (< 2 sec each time), the Set Date Format screen appears with the Set Point flashing (Fig. 23).
• Press/release the S (right) button repeatedly (< 2 sec each time) to increase the Day Set Point from 1 up to 31 in increments of 1 Day; or depress/hold the S button to scroll upward through the Set Points at a rate of 8 per second. •...
ReACT Pro • Press/release the A button (< 2 sec) to accept the Hour, the Minute Set Point will flash. • Press/release the S (right) button repeatedly (< 2 sec each time) to increase the Minute Set Point from :00 up to :59 in increments of :01 (min); or depress/hold the S button to scroll upward through the Set Points at a rate of 8 per second.
• Press/release the S (right) button (< 2 sec) to toggle the Set Point between ON and OFF. • Press/release the A button (< 2 sec) to accept the setting and access Set Deep Stop. • Depress both buttons for 2 seconds to revert to the Surface Main. SET DEEP STOP (DS) STOP STOP...
• depress both buttons for 2 seconds to access Set 1, then again Set 2. The ReACT Pro can be set for use either as an AIR computer or as a NITROX computer. After Fig. 30 - Set for Air activation, it will operate as an AIR computer without displaying information associated with oxy- gen calculations, unless it is set for a percentage of oxygen (FO2) other than Air (e.g., a numerical...
ReACT Pro USE WITH AIR When set for AIR, the ReACT Pro will perform calculations the same as if FO2 were set for 21%, internally accounting for O2 accumulation for any subsequent Nitrox dives. Once a dive is made with the unit set for NITROX (e.g., FO2 set for a numerical value), the unit cannot be programmed to op- erate as an AIR computer until 24 hours after the last dive.
PLAN MODE NOTE: Genesis Scuba strongly recommends that you access and review the Plan Mode prior to every dive to help you plan your dive as required to avoid exceeding no decompression or oxygen exposure limits. NITROX NITROX NITROX FT FT...
150 (45) (:08) 160 (48) (:07) 170 (51) (:06) WARNING: If Wet Activation is set Off, the ReACT Pro must be manually 180 (54) (:06) 190 (57) (:05) activated prior to start of a dive. Dive mode will not activate automatically NDLs by immersion in water unless the Wet Activation feature is Set ON.
NO DECO DIVE MAIN (Fig. 34) The ReACT Pro will enter the No Deco Dive Mode when you descend to 5 FT (1.5 M) for 5 sec- onds. Dive mode is identified by the Wave and Dive Profile icons (Fig. 34a). Also displayed will be - •...
ReACT Pro No Deco ALT 2 (Fig. 36) Displayed will be - • Temperature with graphic F (or C) • AIR (or NITROX) operating mode icon with Wave/Profile icons • FO2 (% set), if set for Nitrox (blank if set for Air)
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NOTE: The Deep Stop is not required and although recommended, it does not have to be taken. There will be no penalty if the Stop is ignored and ascent (or other activity) is continued. The Deep Stop feature will be disabled and its screens not displayed if you enter Deco or High O2 (=>...
ReACT Pro NO DECO SAFETY STOP Upon ascending to 20 FT (6 M) on any No Decompression dive in which Depth exceeded 30 FT (9 M), a single beep Alert is sounded and a Safety Stop screen appears with a countdown timer beginning at 3:00 (min:sec) and counting down to 0:00.
DIGITAL GAUGE MODE When Digital Gauge Mode is set On, the unit operates without any decompression or O2 monitor- BT BT ing functions, basically as a Depth Gauge/Timer. A contiguous 24 hour post dive surface interval is then required for the unit to operate as a full function diving computer. GAUGE DIVE MAIN (Default) FT FT Information displayed includes (Fig.
SURFACE MODE When you ascend to 2 FT (0.6 M), the ReACT Pro 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 top to bottom (Fig.
ReACT Pro AFTER THE TRANSITION PERIOD (THE FIRST 2 HOURS) Once 10 minutes on the surface have elapsed, the Wave icon stops flashing indicating that the dive and Transition Period are completed, and a subsequent descent will be considered a new dive.
The Desat counter (Fig. 43a) provides calculated time for tissue desaturation at sea level. Like Fly Time, it begins 10 minutes after the last dive displaying a countdown that starts at 9:59 (hr:min) maximum with the SAT icon and counts down to 0:00. If Time to Desaturate is calculated to be greater than 9:59 (hr:min), the display will indicate 9:++ (Fig.
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ReACT Pro To access the Log Mode (after 10 minutes on the surface) - > press/release the A (left) button 4 times, while viewing the Surface Main screen > the Preview screen of the most recent dive will appear displaying (Fig. 45) - •...
To view the second Data screen for that dive, press/release the S (right) button while viewing the Data 1 screen. Information displayed includes (Fig. 47) - • LOG icon • Surface Interval (hr:min) prior to that dive with Wave icon •...
DECOMPRESSION DIVE MODE FT FT The ReACT Pro is designed to help you by providing a representation of how close you are to en- tering Deco which activates when theoretical No Deco Limits are exceeded. Upon entering Deco, one Beep per second will sound. You should then begin a safe controlled Ascent to a depth slightly deeper than, or equal to, the Deco Stop Depth indicated and decompress for the Stop Time Fig.
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ReACT Pro Entry into Deco Upon entering Deco, the Ceiling Bar and Up Arrow icons appear below the Wave icon as a warn- ing, and the NiBG will display a segment next to the deepest Stop Depth required. Other informa- TAT TAT tion displayed on the Main includes (Fig.
ReACT Pro into a Conditional Violation. Once all required decompression has been completed, the ReACT Pro will revert to the No De- compression Dive Mode (Fig. 53). This is indicated by NDL appearing = 0:01 in place of TAT, and the NiBG receding into the Caution Zone.
ReACT Pro CONDITIONAL VIOLATION (CV) The unit will enter Conditional Violation if you ascend shallower than (Fig. 54a) the required Deco Stop Depth displayed (Fig. 54b). One beep per second will sound. TAT TAT The Up Arrow icon will disappear, and Total Ascent Time (TAT) and the Deco Stop Bar icon will...
The ReACT Pro cannot accurately calculate Deco times for Stop Depths much greater than 60 FT (18 M) and offers no indication of how much time spent underwater would result in the need for a greater Stop depth.
A single Long Beep will sound. This situation would be preceded by entering DV2. FT FT The ReACT Pro would then operate with limited functions without any decompression or oxygen monitoring functions. Depth, Bottom Time, and the ARI will be displayed, also the Up Arrow icon and full NiBG flashing as a warning (Fig.
The ReACT Pro will also activate VGM 5 minutes after surfacing from a dive in which a Delayed Violation occurred. The Surface Interval, Date, and Time will be displayed together with the full NiBG flashing (Fig. 59). The countdown timer that appears when you access the Fly screen is only provided to inform you of the time remaining before normal operation can resume with full features and functions.
(Nitrox) mixtures can lead to increases oxygen saturation (O 2 SAT) and the risk of pulmonary oxygen toxicity. Genesis Scuba strongly recommends that you avoid exceeding oxygen exposure limits, and reminds you that Nitrox diving requires special training and understanding of the effects of oxygen toxicity.
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If the calculated amount of O2 saturation equals, or exceeds, 80% of the theoretical exposure limit of 300 OTU, the Up Arrow and O 2 SAT icons appear on the display (Fig. 62a). If O2 saturation continues to increase, the value (%) will increase toward the maximum allowed 2 2 O O (300 OTU or 100%) in increments of 2 (%).
If your ReACT Pro stops working for any reason, it is important that you have anticipated this possibility and are prepared for it. This is an important reason to avoid pushing the no decompression and oxygen tolerance limits, and a critical reason to avoid entering decompression.
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• The oxygen features of the ReACT Pro are intended for use only by recreational divers trained for nitrox diving by an instructor certified by a recognized training agency to teach diving with nitrox.
CLEANING Soak and rinse the ReACT Pro in fresh water following each day of diving, preferably after each dive, and ensure that it is free of any debris or obstructions that would block the sensors. If possible, use lukewarm water to dissolve any salt crystals. Salt deposits can also be dissolved using a 50% white vinegar/50% fresh water bath.
Depth Sensor; possibly resulting in erroneous depth or time readings. It is possible to damage the ReACT Pro Depth Sensor if it is not pressure tested properly. The ReACT Pro must be placed completely underwater when being pressure tested to protect the Depth Sensor.
5 seconds followed by shutdown of the ReACT Pro. If the ReACT Pro did not display the Low Battery icon prior to entering the Dive mode, and a Low Battery condition occurs during a dive, there will be sufficient battery power to maintain unit operation for the remainder of that dive, however the Backlight will be disabled.
BATTERY REPLACEMENT PROCEDURES MODULE REMOVAL FROM BOOT If the ReACT Pro is in a Wrist Boot, it will be necessary to peel the lips of the Boot downward off the Module while applying pressure from underneath, working it out slowly.
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• 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 ReACT Pro until it receives proper service by an Autho- rized Genesis Scuba Dealer.
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(set at 'no heat'). WARNING: If damage or corrosion is found in the Battery Compartment, return your ReACT Pro to an Authorized Genesis Scuba Dealer, and DO Fig. 67 - Battery Insertion NOT attempt to use it until it has received factory prescribed service.
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Battery Hatch and Hatch Retaining Ring Installation • Replace the Hatch O-ring with a new one. This O-ring must be a genuine Genesis Scuba part that can be purchased from an Authorized Genesis Scuba Dealer. Use of any other O- ring will void the warranty.
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WARNING: If there are any portions of the display missing or appearing dim, or if a Low Battery condition is indicated, return your ReACT Pro to an Authorized Genesis Scuba Dealer for a complete evaluation before attempting to use it.
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NOTE: The Wet Activation Contacts are located on the stems of the Buttons and on metal Pins located on the lower left side of the module. The ReACT Pro module is designed for use in a Boot that has an opening on the left side which exposes the Pins (and side Wet Activation Contact) to water upon immersion.
DIVE TIME REMAINING (DTR) One of the most important pieces of information on the ReACT Pro is the patented DTR numeric display. The ReACT Pro constantly monitors decompression status and oxygen accumulation. The DTR display will indicate the time that is more critical for you at that particular moment (i.e.;...
The ReACT Pro senses ambient pressure when it is manually activated, every 15 minutes while it is activated, or every 30 min- utes when it is not activated. Beginning at 3,001 feet (916 meters), then at additional intervals of 1,000 feet (305 meters), it will automatically recalibrate depth measurements and the No Deco and O2 limits.
FLYING AFTER DIVING In 1990 the Undersea and Hyperbaric Medical Society (UHMS) published a set of guidelines aimed at minimizing the possibil- ity of decompression sickness due to flying too soon after diving. The UHMS suggests* that divers using standard air cylin- ders and exhibiting no symptoms of decompression sickness wait 24 hours after their last dive to fly in aircraft with cabin pres- sures up to 8,000 feet.
WARNING: Diving with Nitrox mixtures requires special knowledge of the 1.10 variations imposed upon divers, their activities, and their equipment by the 1.20 1.30 increased percentage of O2. Genesis Scuba recommends completion of a 1.40 1.50 specialized Nitrox training course by a recognized training agency prior to 1.60 diving with any Nitrox mixtures.
MULTIPLE TISSUE TRACKING The ReACT Pro tracks 12 tissue compartments with halftimes ranging from 5 to 480 minutes. The NiBG always displays the controlling compartment that is the only one important at that time. Think of the NiBG as transparent displays laid on top of one another. The tissue compartment that has filled up fastest is the only one that can be seen from the top.
The ReACT Pro is an informational tool whose entire worth depends on using it correctly. Learn 160 (48) 7 (7) how to use it and use it wisely. Have fun with the ReACT Pro, and thank you for being a re- 170 (51) 7 (6)
PC INTERFACE MODE While the Surface Main screen is displayed, data can be downloaded from the React Pro or set- tings can be uploaded to it, by connecting it to a compatible PC using a special PC Interface Cable (USB) and setting up the PC program. When the cable is connected, a PC screen will be displayed for 2 minutes, or until the data transfer is complete if less.
CLEAR (RESET) The ReACT Pro is configured with a feature that allows calculations pertaining to a dive series in progress to be interrupted. Activation of this feature will delete all data accumulated during the dive series necessary for planning a next dive and should only be performed if the user plans to suspend diving for at least 24 hours.
SPECIFICATIONS NO DECOMPRESSION MODEL OPERATIONAL MODES DIVE MODES • No Deco Basis: • Activation >> Diagnostic >> SN • Main >> Alt 1 >> Alt 2 • Modified Haldanean Algorithm • Surface Main • DS Preview • 12 tissue compartments •...
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ReACT Pro SPECIFICATIONS (continued) DISPLAY RANGE/RESOLUTION BAR GRAPHS Numeric Displays: Range: Resolution: Nitrogen Bar Graph segments • Dive Number 0 - 50 No Deco normal zone • Depth 0 - 399 FT (0 - 120 M) 1 FT (.1/1 M) No Deco caution zone •...
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SPECIFICATIONS (continued) OPERATIONAL PERFORMANCE Activation: Function: Accuracy: • Manual - push button (recommended) • Depth ± 1% of full scale • Automatic - by wet contacts (if set On) • Timers 1 second per day • Cannot be activated deeper than 5 FT (1.5 M) •...
Depth Sensor - An electromechanical device that converts water pressure into an electrical signal, that is converted to a visual depth display. Diagnostic Mode - The first display seen on Genesis Scuba dive computers after initial activation during which time a self check for internal faults and battery voltage is performed.
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GLOSSARY (continued) Maximum Depth - The deepest depth attained during a dive. Mode - A specific set of functions in a dive computer. Multi-level Dive - A type of dive profile where the diver spends various times at different shallower depths (opposite of a “Square Wave” dive profile). NDL - Abbreviation for No Decompression Limit.
ReACT Pro INSPECTION / SERVICE RECORD SERIAL NUMBER DATE OF PURCHASE PURCHASED FROM (DEALER) BELOW TO BE FILLED IN BY AN AUTHORIZED GENESIS SCUBA DEALER: DATE INSPECTION / SERVICE PERFORMED DEALER / TECHNICIAN...
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A u t h o r i z e d G E N E S I S S c u b a d e a l e r s a r e e q u i p p e d t o p r o v i d e y o u w i t h t h e s e r v i c e y o u n e e d i n c l u d i n g t e c h n i c a l s e r v i c e , r e p a i r a n d r e t u r n s .
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