Nitrox Recreational Mode Petrel 1 / Petrel 2 User Manual
Contents
1. P 22 End Dive Delay queia 22 EU ee p P E E E ere EE E EE OE TA EE 22 M Dept M M Q 22 9 Changing the Battery e o error nuu 23 SAMI NIAMLIO MeET 25 9 2 Tissues eI qob ET 24 10 Storage and Maintenance e 25 TL SE EF VICI n ett GIOSSOE V Gee ea d SPECIFICATIONS ceo eren unn nunanunuuuuuuuuuuauauauaua22s ZO meam odas 26 Industry Canada Warning susce ost sta oett coc satia Fi se od iode dus doer edge 26 DocRevB Shearvvater Petrel Nitrox Recreational Mode Conventions Used in this Manual DA N G R These conventions are used to highlight important information This computer is capable of calculating deco stop requirements These calculations are at best a guess of the real physiological decompression requirements Dives requiring staged decompression are substantially more risky than dives that stay well within no stop limits INFORMATION Information boxes contain useful tips for getting the most out of your Petrel Diving with rebreathers and or diving mixed gases and or performing staged decompression dives and or diving in overhead environments greatly increases the risk of scuba diving A CAUTION Caution boxes contain important instructions on operating the Petrel WARNING Warning boxes contain critical information that may affect yo2. Battery Changed Battery Changed FIGURE 24 After a battery change you will be notified if the decomression tissues were restored successfully Conditions that cause the tissues to be cleared are Firmware Updates A firmware update will clear the tissues Therefore updating the firmware in the middle of a dive trip is not a good idea User Request You can clear the tissues manually in the System Setup System Setup menu Use the Reset To Defaults option This will then prompt if you want to reset the settings only the tissues only or both Slow Battery Change Quick battery changes do not normally cause the tissues to be cleared A super capacitor stores energy to keep the clock running for at least 15 minutes during a battery change If battery removed for longer than 15 minutes then the tissues will be cleared DocRevB Shearvvater Petrel Nitrox Recreational Mode Corruption A 32 bit cyclic redundancy check CRC is used to verify the integrity of the tissues each time the Petrel is turned on If corrupted the tissues will be cleared The most likely cause of corruption is removing the battery with the Petrel turned on Therefore turning the Petrel off before changing the battery is the best practice Changing To From Gauge Mode In gauge mode the Petrel does not know what gas you are breathing and cannot track tissue loading Therefore when changing to or from gauge mode the tissues are cleared 1O Storage
3. For this reason the displayed PPO2 on the surface may not exactly match the FO2 fraction of O2 although the displayed PPO2 is still correct DocRevB Shearwater Petrel Nitrox Recreational Mode F 5 2 Compass Petrel 2 only Marking a Heading The Petrel 2 model contains a tilt compensated digital compass To mark a heading press MENU left button until Mark Compass is displayed then press SELECT right button to mark the current direction The display will then jump back to the compass display The heading is shown as a pair of green triangles la PK Compass Compass Features 1 resolution e 5 accuracy e Smooth high speed refresh rate Heading with reciprocal True North declination adjustment MU d a a Viewing the Compass When enabled the compass is viewed by pressing the SELECT right button once Press SELECT again to continue on to view the regular info screens Unlike the regular info screens the compass never times out back to the main screen Press MENU left button to return to the main screen Mark the heading to This feature makes it easy remember the current to determine if you are off direction course Compass Limitations It is important to understand some compass limitations before use Calibration The digital compass needs occasional calibration This can be done in the System Setup Compass menu and takes only one minute compass should be calibra
4. Nitrox Recreational Mode Petrel 1 Petrel 2 User Manual Q SHEARWATER Powerful e Simple e Reliable SHEARWATER TESI ETE 9 39 00 STOP E 124 f air ged P 4 vt s Shearvvater Petrel Nitrox Recreational Mode Table of Contents Table Of C OFItOeDIES a ramsi adepta a p Uc Dr EFC or ERA ER ERR time 2 Conventions Used in this Manual err 5 1 INTLFOCGUCTION cccccccccccnccnnenenennencnnnnnnenennnennnnnnnnnnnnenenenee 4 INE PCC NT 4 2 Modes Covered by this Manual 5 2 BUEEONS iini meia E iain Euxini ER EWEERR ARR FAR KE S sis O 3 1 Turning the Petre OD uirri dienne cessant 6 I2 PURON EDE RET 6 4 The Main Screen BRR RRR UE EE EU NU ND EE NU NU U DN NN UE EE EU UE NU UD DD NU UE UD Du Ui 7 Alk BaSe DIVE Rem ERR 7 4 2 Decompression INTO wsscisicxiccicvsaiwansevaceds cntecsnduslbeisiactdectbecduomvabiesasmasodenns 7 4 3 Configurable Bottom ROW uu ccccccccccccccccesesscssssscceeeeseneeeeseseseseenenenes 7 4 4 Detailed Descriptions eeeeenn nnns 8 5 Info Screens PTT TTT TTT TTT TTT YT 10 5 1 Info Screen Detailed Descriptions emm 1O 5 2 Compass Petrel 2 OMY si ciensssstinviccsnsskinssavsiocendecnaincdevwsesionaseeetcicontedusice 13 6 Safety and Decompression Stops 14 CL SAC EV OS eta 14 6 2 Decompression Stops eem eene 15 7 Menu Reference semana 16
5. Shearwater Petrel Nitrox Recreational Mode F 4 The Main Screen The Main Screen FIGURE 8 shows the most important information for Air and Nitrox diving It is divided into three sections Basic dive info decompression info and the configurable bottom row 8 a 4 1 Basic Dive Info The Basic Dive area shows 7 2 4 e The current depth in feet or meters The dive time in minutes and seconds When on the surface the dive time is replaced by a surface interval timer Also a battery gauge will appear in this area 78 4 2 Decompression Info Al 2 45 FIGURE 8 The Main Screen The Decompression area shows Safety stops if enabled e Decompression stops e No Decompression Limit NDL in minutes Nitrogen loading bar graph e Warnings for maximum operating depth MOD and CNS The exact appearance of the main 2 I screen may vary slightly 4 3 Config urable Bottom Row For example here the depth is shown in meters a customized 3 h 51 The bottom left position always shows the currently selected bottom row is used and the safety gas stop has been replaced by a mandatory decompression stop Nx 32 3 4 The center and right positions can be configured to show a variety of different displays See the System Setup gt Bottom FIGURE 9 Alternate View of the Row menu for options Main Screen Page DocRevB Shearvvater Petrel Nitrox Recreational Mode F 4 4 Detailed Descriptions The following describes
6. how much bottom is available without the need for decompression stops It can apply a surface interval from none up to 1 day to account for off gassing FIGURE 22 NDL Planner Results The results are a list of depths along with the NDL time at that depth and the gas used Only programmed gas are used Dive Planner The Dive Planner is for planning decompression dives It is covered in the technical version of the manual Shearwater Petrel Operations Manual Stand Alone amp EXT Models Brightness See System Setup Display Setup for brightness options DocRevB Shearvvater Petrel Nitrox Recreational Mode 7 4 Dive Log 8 System Setup t Use the Dive Log menu to review logs stored on the Petrel The System Setup menu is only available when on the Up to 1000 hours of diving can be stored The dive log surface sampling rate is one sample every 10 seconds The Dive Log menu is only available when on the surface 8 1 Dive Setup Display Log Dive Setup Mode OC Rec Use this menu to display a list of logged dives and view Mode Salinity Salt details The only mode covered by this manual is OC Rec the Upload Log Nitrox Recreational Mode Selecting this menu item starts the Bluetooth connection and See the manual Shearwater then waits for commands from a desktop or laptop computer Petrel Operations Manual Stand Alone amp EXT Models for Once the 3 minute countdown has begun go to the technical mod
7. Air e Clear layout optimized for Air and Nitrox diving e Optional safety stops e Nitrogen loading bar graph e Configurable bottom row e No Decompression Limit NDL planner e B hlmann ZHL 16C with gradient factors deco model e Decompression planner e Maximum operating depth warnings e Switchable to technical open and closed circuit modes Up to 1000 hours of on board dive log Bluetooth for dive log uploads and firmware updates A All dives have a risk of DCI It is important to understand that all dives come with the risk of decompression illness DCI even dives Petrel 1 vs Petrel 2 staying well within no decompression limits This manual covers both the Petrel 1 and Petrel 2 models The differences are that the Petrel 2 has a digital compass and also supports Bluetooth Smart for connection to iOS devices Both models have Bluetooth Classic for connection No dive computer or decompression model can guarantee a zero risk of DCI Education and following established procedures are your best defenses to desktop computers laptops and Android devices We recommend carrying dive insurance and having a plan to deal with emergencies All other features are the same between the Petrel 1 and Petrel 2 Both models use the same firmware file and firmware version number Page 4 DocRevB Shearwater Petrel Nitrox Recreational Mode F 2 Modes Covered by this Manual Other Tec modes not covered by this manual ar
8. dC CARY OU MTR 1 EE MODE 17 Ye 2 C A ee eo ree ee pre 17 Jo VE De EMT 17 Dene c cd ee en ee E LU a 17 NDE PTS E cranir d Ei IRURE Pix IRSE E aes 17 EV PIS Pre suene itenim utu AR Lad tva ode arcana citat sua RM LM dm 17 mie IBI SG NN RE m Tm 17 Ty CONVO Ie TRUMERK M 18 PSA DOO arises Sc 2 aaa eee cet E Er eee anat onmentui 18 COTO M Bero NENNT RERO E a a 18 Edit Log NUMber Me 18 clear LOG ERREUR REM 18 Page 2 e 8 System Setup amp crono nonu unuuuuuuuuauauuuuuuauauauas 1G UM S 6 0 anne ERR 18 MOTO cre atcterins pan E contant E E alive saem eaazanieaenceweanne 18 NO OI reared a EE sotmetiment eidcamiesntsn 19 Conservatism ee S ee 19 visivo M sede 19 SN BOOM ROW ME UTERE 19 8 4 Nitrox GASES Leite certet drerEt rSn p EA Ex Eque EEEE EEr eaer EEE EE aii 20 8 5 Display SetU erm rieri iari 20 Le a E A E 20 DOUE SS E E E I A E A ie 20 7EN iUe MEET E roe EAEE E RT T 20 ERSE iE IIN A EN TUN 20 8 6 Compass Setup Petrel 2 only eee 21 Compass mi ies 21 Tue Nor RERO 21 8 0 EI aee en Pe E E 21 G SEC CU D aan 22 DEIC SL E 22 UNOC ra E AR mencionat 22 LOAF UDE rene E A eE E micene homes 22 Reset to DEIGUILS ecoiatctemiit maternes setalicesmitactmen ies 22 88 ACV Gela mE UT 22 Main OION C EE 22 ECO NO NERECNR X
9. each main screen display in detail Decompression Info Area Basic Dive Info Area Safety Stop Depth The depth is shown in the top left When in meters one decimal place is shown Counts down automatically when in the safety stop range 3 00 See the Stops section for details 39 Beside the depth the ascent rate is Safety stops may be turned off set to shown as a series of up arrows Each Rea fixed times of 3 4 or 5 minutes or set ibis arrow is 10 ft min or 3m min e g to adapt based on dive conditions See arety Stop Depth in Feet and the System Setups Dive Setup menu 20 fpm 50 fpm 60 fom Dive Time 6 mpm 15 mpm 18 mpm Deco Stop Dive Time Safety Stop will be replaced with Deco Stop when mandatory decompression Dive time displays in minutes and stops are required seconds It begins and ends counting automatically when you dive See the Stops section for important details FIGURE 14 Deco Stop Surface Interval When on the surface the dive time No Decompression Limit NDL is replaced by the surface interval in FIGURE 11 hours and minutes Beyond 96 hours Depth in Meters Pine 4 days it displays in days Shows One Decimal The NDL is the time in minutes that may be spent at the current depth until The surface interval is reset to zero decompression stops will be needed whenever the decompression tissues A maximum value of 99 minutes is displayed are cleared Battery Sym
10. moves along with the Petrel Battery Affects the Compass Calibration Calibrate Factory Reset Exit Each battery has its own magnetic signature mostly due to its steel case Therefore recalibrating the compass when changing the battery is recommended Compare the Petrel with a known good compass or fixed references to determine if calibration is needed If comparing against fixed references remember to consider the local deviation between Magnetic North and True North declination Calibration is typically not needed when travelling to different locations The adjustment needed then is the True North declination When calibrating rotate the Petrel smoothly through as many 3D twists and turns as possible in 15 seconds Keep metal and magnetic objects away during calibration The calibration can also be reset back to the factory values After calibration it is recommended to compare the compass accuracy with a known good compass or fixed references Tips For a Good Compass Calibration The following tips will help ensure a good calibration e Stay away from metal objects For example wrist watches metal desks boat decks desktop computers etc can all interference with the Earth s magnetic field Rotate to as many 3D positions as possible Upside down sideways on edge etc Compare with another compass not a smartphone those are terrible to check your calibration SHEARWATER DocRevD
11. povver standby state The Turn Off menu is not available vvhen diving Automatic Turn Off When on the surface and no buttons have been pressed for 15 minutes the Petrel will automatically turn off to save battery life End Dive This menu item will replace Turn Off when on the surface and still in dive mode The Petrel will automatically exit dive mode once 1 minute default End Dive Delay setting has been spent at the surface Use this menu command to exit dive mode sooner Adjust the End Dive Delay in System Setupe Adv Config 7 2 Select Gas The Select Gas menu allows setting the active gas from the list of gases that are currently programmed Up to three gases may be programmed in the Nitrox Recreational mode The active gas has a white background An off gas is drawn in h magenta purple Selecting an off Next gas will automatically turn it on FIGURE 21 Select Gas Menu Page 17 e 7 5 Dive Setup The sub menus in Dive Setup are available both on the surface and while diving unlike System Setup which is not available while diving Define Gas The Define Gas menu appears the same as the Select Gas menu but allows turning gas on or off and editing their oxygen percentage the remaining percentage is assumed to be nitrogen Gas may be edited and turned on or off during a dive NDL Planner The No Decompression Limit NDL Planner is a quick way to determine NDL Plan n v r
12. until stop time clears Tv Do not dive beyond your training Deco Stop Violation If you violate the deco stop the display will flash red and an arrow will indicate to descend Significant stop violations will result in a Missed Deco Stop error Only perform decompression diving if you have received proper training to do so Diving with any type of overhead ceiling whether in a cave or shipwreck or from a decompression requirement adds significant risk Have a plan to handle to failures and never rely solely on a single Deco Stops Complete source of information Once all decompression stops are complete the safety stop will begin counting down If safety stops are turned off the display will say Complete Decompression stops will appear in place of the safety stop when required After the decompression stops are completed the safety stop will begin Decompression stops occur at fixed 10ft 3m intervals Decompression stops display as follows Tv No lock out for violating deco stops There is no lock out or other penalty for violating the Replaces Safety Stop decompression stops Once the NDL reaches zero Deco Stops will replace the Safety Stop display The policy is to provide clear warnings that the decompression schedule was violated to allow you to make decisions based upon your training This may include contacting your dive insurance provider contacting the nearest hospital or recompr
13. 2 only Compass View The Compass View setting can be set to Compass e Off The compass is disabled and the Mark Compass option Sn reb d is removed from the menus True North 0 e 60 90 or 120 Sets the range of the compass dial that is visible on the main screen The actual amount of arc that is shown on the screen is 60 so this may seem the most natural The 90 or 120 setting can be used to see a wider Next Edit range True North In most places a compass does not point towards True North Comoass but rather to Magnetic North The difference in angle between compass View 90 these two directions is called the magnetic declination also called Calibrate magnetic variation and varies around the world The declination in une orth 0 your location can be found on maps or by searching online Next Edit This setting can be set from 99 to 99 If you only need to match an uncompensated compass or your navigation is all based on relative directions then this setting is not necessary and can be left at O 57 DocRevD Q3 SHEARWATER Shearvvater Petrel SA amp EXT 58 Calibrate Calibration of the compass may be needed if the accuracy drifts over time or if a permanent magnet or ferromagnetic metal e g Enable iron or nickel object is mounted very close to the Petrel To be VIDERER Adjust True North calibrated out such an object must be mounted with the Petrel so that it
14. Important so that the Petrel can give low battery warnings at the proper voltage levels Reinstalling the battery cap It is very important that the battery cap O ring is clear of SUPpoHed Da En sy pestes dust or debris Carefully inspect your O ring for any debris or damage and gently clean It is recommended that you lubricate your battery cap s O ring on a regular basis with an O ring lubricant compatible with Buna N Nitrile O rings Lubricating helps ensure that the O ring seats properly and does not twist or bunch 1 5V Alkaline The common AA battery type that can be purchased at most supermarkets and electronics stores around the world Not rechargeable Inexpensive and reliable they provide 35 hours of operation Recommended 1 5V Photo Lithium Fairly common but more expensive Page 25 DocRevB Shearvvater Petrel Nitrox Recreational Mode than alkalines They provide about 55 hours of operation Not rechargeable Good for use in very cold water Recommended 1 2V NiMH Common rechargeable batteries used in digital cameras and photo flashes Can have high self discharge Provide about 30 hours of operation per charge Can die quickly so care should be taken to ensure sufficient charge prior to diving 3 6V Saft The Saft LS14500 lithium batteries provide very high energy density However their high cost makes other battery types a better choice for most users Provide about 100 hours of operation Can die qui
15. Safety Stop Required Once the depth exceeds 35ft 11m a safety stop will be added Automatic Countdown Countdown begins once the depth becomes shallower than 20ft 6m Countdown will continue while the depth remains in the range of 7ft to 23ft 2 4m to 7 0m Countdown Paused If the depth goes outside of the range Tft to 23ft 2 4m to 7 0m then the countdown pauses and the display instructs to either an ascend or descend Page 14 Safety Stop Complete When the countdown reaches zero the display changes to Complete 1 2 and you are novv clear to ascend to the surface Countdown Reset The countdown will reset if the depth once again exceeds 35ft 11m A No lock out for omitting safety stop There is no lock out or other penalty for omitting a safety stop as they are optional If you ascend to the surface before the safety stop countdown finishes you will get a flashing yellow descend arrow but this will disappear once the dive ends We recommend performing safety stops as planned as they offer a reduction in risk of DCI and take little time DocRevB Shearwater Petrel Nitrox Recreational Mode F 6 2 Decompression Stops At Deco Stop While at the stop depth or up to 5ft Decompression stops are mandatory stops that must be 1 5m deeper the title will turn green followed in order to reduce the risk of decompression illness and a check mark will be shown DCI Hold this depth
16. ady i e dual mode Bluetooth supporting both Bluetooth Classic v2 1 and Bluetooth Smart v4 0 Bluetooth Smart is used for connecting to iOS devices All other features are the same between the Petrel 1 and Petrel 2 Both models use the same firmware file and firmware version number Q3 SHEARWATER 5 DocRevD Shearvvater Petrel SA amp EXT Compass Petrel 2 only The Petrel 2 model contains a tilt compensated digital compass Compass features e 1 resolution e 5 accuracy e Smooth high speed refresh rate e User set heading marker with reciprocal True North declination adjustment Tilt compensation 45 Viewing the Compass When enabled the compass is viewed by pressing the SELECT right button once Press SELECT again to continue on to view the regular info screens Unlike the regular info screens the compass never times out back to the main screen Press MENU left button to return to the main screen Compass Limitations It is important to understand some compass limitations before use Calibration The digital compass needs occasional calibration This can be done in the System Setup Compass menu and takes only one minute Battery Changes When the battery is changed the compass should be calibrated This is because each battery has its own magnetic signature that interacts with the compass Fortunately this effect can be removed with proper calibration Interference Since a compass ope
17. and Maintenance 11 The Petrel dive computer should be stored dry and clean Do not allow salt deposits to build up on your dive computer Wash your computer with fresh water to remove salt and other contaminants Do not use detergents or other cleaning chemicals as they may damage the Petrel dive computer Allow to dry naturally before storing Do not wash under high pressure jets of water as it may cause damage to the depth sensor Store the Petrel dive computer out of direct sunlight in a cool dry and dust free environment Avoid exposure to direct ultra violet radiation and radiant heat Servicing There are no user serviceable parts inside the Petrel Do not tighten or remove the faceplate screws Clean with water ONLY Any solvents may damage the Petrel dive computer Service of the Petrel may only be done at Shearwater Research or by any of our authorized service centers Your nearest service center can be found at www shearwaterresearch com contact Page 25 e Glossary 5 At Plus 5 Minutes The TTS if remaining at the current depth for five more minutes CC Closed circuit Scuba diving using a rebreather where exhaled gas is recirculated with carbon dioxide removed CNS Central Nervous System as relates to oxygen toxicity DCI Decompression illness EXT A Petrel model with external PPO2 monitoring FO Fraction of oxygen sometimes FO2 GF99 Gradient Factor to 99 The B hlma
18. between the yellow and red zone in the original ZHL 16C M Value pressure On gassing NOTE This tissues graph displays similar info to the main screen N bar graph but they are not the same This graph shows the current tissue loads for all compartments The main screen display shows only the leading compartment after ascent to the surface Deep stop Last deco stop 16 tissue compartments t t Inspired inert M Value pressure gas pressure Ambient pressure Increasing pressure Page 12 Some Sample Tissues Graphs On surface sat with air e BATTERY The battery type and voltage Battery type can only be set when the battery is changed A Ensure Battery Type Matches Actual The voltage levels for low battery warnings are different for each type of battery For this reason it is important that the battery type setting is correct Otherwise the Petrel may not warn properly and the battery may die unexpectedly TAE Nov 1013 PRESSURE mBar Displays the value being used as the surface pressure SURF in millibars as well as the current pressure NOW The NOW value is only displayed when on the surface Note that typical pressure at sea level is 1013 millibar although it may vary with the weather barometric pressure For example in a low pressure system the surface pressure may be as low as 980 millibar or as high as 1040 millibar in a high pressure system
19. bol Displays in yellow when less than 5 minutes and red when decompression Replace the battery when yellow or stops are needed red The battery symbol only appears when on the surface or when the FIGURE 12 battery is low In Adv Config this Surface Interval and behaviour can be changed Battery Symbol Page 8 DocRevB Shearwater Petrel Nitrox Recreational Mode F Decompression Info Area Configurable Bottom Row continued Gas Nitrogen Loading Bar Graph 9 00 The gas position is not configurable It The nitrogen bar graph is scaled such shows the currently selected breathing gas that it is full once decompression stops will be needed When air 21 O is used the value Air is displayed For all other gases it displays On the surface it shows the residual ir Nx Nitrox followed by the O 90 N Bar Graph 2 nitrogen from the previous dive a The gas vvill flash red if the maximum FIGURE 17 Warni operating depth MOD of the gas is Currently Selected LS exceeded It will display in yellow if a better Gas This area also shows the following gas is available warning displays Listed from highest to lowest priority If multiple warnings only the highest priority will display nia CNS Central Nervous System CNS Oxygen Toxicity limit reached Maximum Operating Depth MOD exceeded Ascend to shown depth MOD sida ee Maximum Operating Depth MOD exceeded Svvitch to more appropriate
20. ckly so care should be taken to ensure sufficient charge prior to diving 3 V Li lon Rechargeable14500 Li lon batteries provide about 35 hours of operation per charge Can be ordered from the internet Have more gradual voltage drop as discharged so easier to determine remaining capacity than NiMH rechargeables Good in cold water NOTE Battery operating lifetimes are given with screen on medium brightness and at room temperature Higher brightness and lower temperature can reduce life Lower brightness can increase life A Remove Batteries for Storage Batteries can leak especially when discharge Do not risk damaging your dive computer by leaving batteries installed for long periods greater than 3 months Alkaline batteries are especially bad for leaking and are most prone to leaking when completely discharged Page 24 e 9 2 Tissues Cleared Some conditions will cause the decompression inert gas tissue loadings to be cleared When cleared the tissues are set to being saturated with breathing air at the current barometric pressure The Petrel does not lock out when the tissues are cleared If the tissues are cleared then the diver must take appropriate cautions when planning repetitive dives The Petrel clearly notifies when tissues are cleared so that the diver has the proper information to make responsible decisions For example after changing the battery you will see one of these two screens
21. e This manual only covers operation of the Shearwater Petrel in the Nitrox Recreational Mode OC Rec The Shearwater Petrel also has modes for techincal diving The OC Tec mode allows up to 5 AVA 22 30 with trimix and rebreather diving trimix gases air and nitrox can be T used as well Please see the document Shearwater Petrel Operations Manual Stand Alone amp EXT Models for instructions on these Dive setur Use the System Setup gt Dive Mo de V Rec Setup menu to set the Mode to salinity salt OC Rec which stands for Open Circuit Recreational It provides more control over settings but also more opportunities for mistakes and is more complex FIGURE 3 OC Tec Mode 20 1 el The OC CC mode is for closed A circuit rebreather divers Open FIGURE 1 Setting OC Rec Mode circuit is available for bailout a 20 I 22 The SA model uses fixed PPO2 setpoints while the EXT Model allows both fixed setpoints and monitoring PPO2 from external sensors Switching between Rec and Tec modes You may safely switch between Rec and Tec modes with no penalty as all decompression tissue loading is FIGURE 4 OC CC Mode retained except when switching to Gauge mode ad 22 90 Gauge Mode provides a simple bottom timer without decompression calculations 4 1 6 I 4 h I It features maximum and average depth average is resettable and a stopwatch for ratio deco divers 36 79 8 l 4 h AM FIGURE 2 The Ni
22. es Shearwater Desktop software and select Dive Computer Download Dive Log MS Salinity Edit Log Number Water type salinity affects how the measured pressure is Edit the number for the next recorded dive log Has no effect converted to depth dives on already logged dives Available Salinity settings The next dive will be the value entered here plus 1 For e Fresh example if 40 is entered here the next dive will be logged e EN13319 as dive 41 Salt Clear Log Fresh and Salt water differ by about 396 Salt water Clear all logs so they will not appear in the Petrel dive log being pd el will display a Race eee iiM es and will not upload to a computer measured pressure versus the Fresh water setting The EN13319 value is between Fresh and Salt It is from the European CE standard for dive computers and is the Petrel s default value Page 18 DocRevB Shearvvater Petrel Nitrox Recreational Mode 8 2 Deco Setup Deco Setup The only deco model available Buhlmann GF ZHL 160 in Nitrox Recreational mode Conservatism Med is B hlmann ZHL 16C with Gradient Factors safety Stop 3min Next Edit Conservatism The decompression model conservatism can be set to three fixed levels e Low 45 95 e Med 40 85 e High 35 75 The corresponding gradient factors are shown for reference but cannot be edited directly Low conservatism means longer NDL times and less decompression High conservatism means shorter NDL ti
23. ession chamber or performing first aid based upon your training Approach Indicator As you approach within 17ft 5 1m the title will change from red to yellow and an up arrow will indicate to ascend to the stop Page 15 DocRevB Shearvvater Petrel Nitrox Recreational Mode 7 Menu Reference From the main screen menus are accessed by pressing the MENU left button The menu structure is shown in FIGURE 20 Enter into a menu or execute its command by pressing the CONFIRM right button Adaptive Menus The menu system adapts to the current state of the dive computer Adaptive menus prevent mistakes and keep the Petrel easy to use For example during a dive the Turn Off Dive Log and System Setup menus are not available Menu Timeout If no buttons are pressed for a period of time the display times out back to the main screen Top level menus Turn Off Select Gas etc timeout after 10 seconds Once inside a menu the timeout increases to 1 minute When a timeout occurs values being editted may not be saved Page 16 e Main Menus Main Screen Surface only Turn Off Select Gas Sub Menus Dive Setup NDL Planner Surface only Edit Log Num Surface only FIGURE 20 Menu Structure DocRevB Shearvvater Petrel Nitrox Recreational Mode 71 Turn Off Press CONFIRM right button vvhile displayed to turn of putting the Petrel in a lovv
24. ften End Dive Delay 060s Bat Icon Surf Warn Main Color Max Depth 130ft Options are White or Green Next Edit Title Color Options are Blue Gray White Green and Cyan End Dive Delay Sets the time in seconds to wait after surfacing before ending the current dive This value can be set from 20 seconds to 600 seconds 10 minutes Default is 60s This value can be set to a longer time if you want brief surface intervals connected together into one dive Some instructors use a longer end dive delay when teaching courses Bat Icon The behavior of the battery icon can be changed here Options are Surf Warn The battery icon displays always when on the surface During dive it displays only if there is a low battery warning Always The battery icon always displays Warn Only The battery icon only appears when there is a low battery warning Max Depth Used together with the MOD PPO2 setting to determine a gas s MOD The shallower of this value and the depth determined from the PPO2 sets the MOD Can be set from 100ft to 165ft default is 130ft or 30m to 50m default 40m DocRevB Shearwater Petrel Nitrox Recreational Mode F 9 Changing the Battery Insert the battery cap into the Petrel and compress the battery contact springs While the springs are compressed rotate the battery cap clockwise to engage the threads Be sure not to cross thread the battery cap s threads Tighten the battery cap until sn
25. gas another gas must be programmed and turned on for this to appear Neer MOD Within 5ft 1 9m below MOD Just a notification no action required BE Gas Another gas is programmed that is more suitable at the current depth Only displays vvhen deco stops are needed Configurable Center 8 Right Positions Many possible configurations can be set for the center and right positions of the bottom row A few possible setups are shown below See System Setup gt Bottom Row for descriptions of all options A 1 08 0 Lf 15 FIGURE 18 Example Configurations for the Bottom Row FIGURE 16 Warnings Page 9 DocRevB Shearvvater Petrel Nitrox Recreational Mode 5 Info Screens Info screens FIGURE 19 provide more information than is avallable on the main screen The info screens only replace the bottom row keeping the other information visible at all times Press the CONFIRM right button to step through the info screens Return to the main screen by Pressing the MENU left button Waiting 10 seconds for the info screen to time out e Scrolling past the last info screen 5 1 Info Screen Detailed Descriptions 130 106 49 Maximum operating depth of the current gas Determined as the shallower of the MOD PPO2 limit and the Max Depth setting Displays in flashing red when exceeded MAX The maximum depth reached in the current dive When on the surface the maximum de
26. ightness Screen brightness can be set to three fixed levels or an automatic setting that measures ambient light to optimize brightness Lower brightness results in longer battery life Altitude The Altitude setting is fixed at the Auto setting which automatically compensates for surface pressure regardless of whether diving at sea level or high altitude A Turn the Petrel on before diving Although the Petrel will turn on automatically after 45 seconds at a depth exceeding 9ft or 3m the best practice is to always turn on the dive computer manually Besides being an opportunity to check functionality setup and battery level it is especially important when diving at altitude in order to accurately determine the surface pressure Flip Screen Use when wearing the Petrel on the right arm when a fixed cable is attached to the Petrel rebreather only DocRevB Shearvvater Petrel Nitrox Recreational Mode 8 6 Compass Setup Petrel 2 only Compass Compass View 90 Calibrate Off The compass is disabled True North Q and the Mark Compass option o is removed from the menus 28 Compass View The Compass View setting can be set to Next Edit 60 90 or 120 Sets the range of the compass dial that is visible on the main screen The actual amount of arc that is shown on the screen is 60 so this may feel the most natural The 90 or 120 setting can be used to see a wider range True N
27. in a smaller font Max amp Avg Maximum and Average Depth in a smaller font DocRevB Shearvvater Petrel Nitrox Recreational Mode 8 4 Nitrox Gases NLEPOX Gases This page is used to define up to 3 nitrox gases 1 On 50 2 Note that gases may also be A3 On 21 edited even during a dive in the MOD PPO2 Dive Setup menu However the maximum operating depth PPO2 Next setting cannot be edited in Dive Setup Each gas can be set from 21 O to 99 O The remaining percentage is assumed to be nitrogen The active gas is shown with a leading A A gas that is turned off is drawn in magenta purple The maximum operating depth MOD values are not editable directly The MOD is determined by two values The MOD PPO2 setting on this page and the Max Depth setting in the Adv Config menu The shallower of the two MOD limits is used When the Max Depth setting is the controlling factor the MOD is displayed grayed out In the above example the air 2190 MOD is controlled by the Max Depth setting The 32 and 5090 nitrox mixes have MOD controlled by the PPO2 MOD setting of 1 4 ata MOD PPO2 can be set from 1 2 to 1 6 in steps of 0 1 Page 20 8 5 Display Setup Display setup Units Feet Units Brightness Auto Altitude Two options are available Flip Screen Feet Imperial units depth in feet temperature in F Next Meters Metric units depth in meters temperature in C Br
28. istance between the equipment and the receiver Connect the equipment to outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Caution Exposure to Radio Frequency Radiation This device must not be co located or operating in conjunction with any other antenna or transmitter Contains TX FCC ID T7VEBMU Industry Canada Warning b Canada Industry Canada IC This device complies with RSS 210 of Industry Canada Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of this device L utilisation de ce dispositif est autoris e seulement aux conditions suivantes 1 il ne doit pas produire d interference et 2 l utilisateur du dispositif doit tre pr t accepter toute interference radio lectrique recu m me si celle ci est susceptible de compromettre le fonctionnement du dispositif Caution Exposure to Radio Frequency Radiation The installer of this radio equipment must ensure that the antenna is located or pointed such that it does not emit RF field in excess of Health Canada limits for the general population consult Safety Code 6
29. mes and more decompression The Low setting is similar to PADI and NOAA no stop time tables for air and nitrox diving Safety Stop The Safety Stop setting can be set to the following values Off e 3 minutes e 4 minutes e 5 minutes e Adapt When using the Adapt setting a 3 minute safety stop will be used unless the dive exceeds 100ft 30m or the NDL falls below 5 minutes in which case a 5 minute safety stop is used Page 19 8 3 Bottom Row Bottom Row Configure and preview the bottom NM 4 11 VC row in this menu Right TTS The left position always displays 1 08 the current gas 15 9 The center and right positions Edit are user configurable with the following settings available Setting Description Blank default for center position Time To Surface The time in minutes to ascend to the surface including ascent deco stops and safety stops CNS Central Nervous System CNS oxygen toxicity clock as a percentage PPO2 The partial pressure of oxygen in units of absolute atmospheres ata Maximum Operating Depth of the current gas Note the MOD is limited by both PPO2 and the Max Depth setting in Adv Config Clock The time of day in 24hr or am pm format same as system setting Does not show am or pm Max Depth The maximum depth of the current or previous dive when on surface Temp amp Time Temperature and Clock in a smaller font PPO2 amp CNS PPO2 and CNS
30. nn ZHL 16C super saturation percent gradient MOD Maximum Operating Depth The deepest depth to which a gas may be safely used NDL No Decompression Limit N Nitrogen O Oxygen OC Open circuit Scuba diving where gas is exhaled into the water i e most diving Petrel This dive computer Also a type of seabird closely related to the Shearwater another seabird Some species are active Predators diving deep underwater in Pursuit of a meal PPO Partial Pressure of Oxygen sometimes PPO2 SC Semi closed circuit Scuba diving using a rebreather where some of the exhaled gas is recirculated with carbon dioxide removed TTS Time To Surface The time to ascend to the surface including the ascent decompression stops and the safety stop DocRevB Shearvvater Petrel Nitrox Recreational Mode Specifications Specification Standalone SA External PPO2 EXT Model Model Operating Modes OC Tec OC Rec OC Tec OC Rec OC CC internal PPO2 OC CC internal PPO2 Gauge OC CC external PPO2 OC SC external PPO2 Gauge PPO2 Decompression Model B hlmann ZHL 16C with GF VPM B and VPM B GFS optional not available in OC Rec mode Accuracy 20 mBar at surface 100 mBar at 14bar Crush Depth Limit 30 Bar 290msw Surface Pressure Range 500 mBar to 1080 mBar Depth of dive start 1 6 m of sea water Depth of dive end 0 9 m of sea water Operating Temperature 4 C to 32 C Range Short Term ho
31. obtainable from Health Canada s website www hc sc gc ca ewh semt pubs radiation radio guide lignes direct eng phpHsc6 Contains TX IC 216QEbzzMU DocRevB Shearvvater Petrel SA amp EXT Introduction The Shearwater Petrel is an advanced technical diving computer for open and closed circuit divers Although we strive to make the Petrel easy enough to use without reading the manual please take some time to read this manual to get the best performance from your new computer Diving involves risk and education is your best tool for managing this risk Models Covered by this Manual This manual provides operating instructions for the Petrel Standalone SA and Petrel External EXT models Both the Petrel 1 and Petrel 2 hardware versions are covered by this manual Nitrox Recreational OC Rec Mode Operation of the Petrel when set to the OC Rec mode is covered by a separate manual see the Shearwater Petrel Nitrox Recreational Mode Manual Although the model of Petrel is the same when using this mode a separate manual was written to keep the instructions simple DiveCAN Rebreather Controller Models For instructions on the Petrel rebreather controller models using DiveCAN communications see the Shearwater DiveCAN Petrel Manual Petrel 1 vs Petrel 2 This manual covers both the Petrel 1 and Petrel 2 models The difference between the models is that the Petrel 2 has a digital compass and also supports Bluetooth Smart Re
32. orth In most locations a compass does not point towards True North but rather towards Magnetic North The difference in angle between these two directions is called the magnetic declination or sometimes magnetic variation and varies around the world The declination in your location can be found on maps or by searching online This setting can be set from 99 to 99 If you only need to match an uncompensated compass or your navigation is all based on relative directions then this setting is not necessary and can be left at 0 Page 21 e Calibrate Calibration of the compass may be needed if the accuracy drifts over time or when the battery is changed Each battery has its own magnetic signature so recalibrating when the battery is changed is recommended Compare the Petrel with a known good compass or fixed references to determine if calibration is needed If comparing against fixed references remember to consider the local deviation between Magnetic North and True North declination Calibration is typically not needed when traveling to different locations The adjustment needed then is the True North declination When calibrating rotate the Petrel smoothly through as many 3D twists and turns as possible in 15 seconds Compass Calibration Tips The following tips will help ensure a good calibration e Stay away from metal especially steel or iron objects For example wrist watches metal desk
33. pth of the previous dive PPO2 Partial pressure of oxygen of the current gas in units of absolute atmospheres ata Displays in flashing red when the MOD PPO2 setting is exceeded Page 1O Return to Main Screen by Pressing MENU left button Waiting 10 seconds Stepping past last screen Air 2 45 U a 106 49 c sores 16 E l4 12 15 Press the CONFIRM right button to U _ dM U U 3906F49D 2000010 FIGURE 19 nfo Screens Display Extra Information Not Available on the Main Screen DocRevB Shearvvater Petrel Nitrox Recreational Mode TEMP The current temperature In F when units are feet or C when units are meters Note that case case insulates the temperature sensor so allow 10 to 15 minutes for the temperature to reach the actual environmental temperature CONSERV The current conservatism setting of the B hlmann ZHL 16C with gradient factors Shows the setting Low Med High along with the actual gradient factor corresponding to this setting See System Setupe Deco Setup for more information CNS Central Nervous System oxygen toxicity limit as a percentage Displays in red when greater than 9090 A Oxygen Toxicity Limits Much like decompression oxygen toxicity limits are not an exact science but rather best guidelines for reducing risk to acceptable limits The consequences of seizures due to oxygen toxicity when diving are severe Fo
34. r recreational nitrox diving we recommend never exceeding a PPO2 of 1 4 ata Page 11 29 14 12 15 GF99 The gradient factor as a percentage i e super saturation percent gradient 0 means the leading tissue super saturation is equal to ambient pressure Displays On Gas when tissue tension is less than the inspired inert gas pressure 100 means the leading tissue super saturation is equal to the original M Value limit in the B hlmann ZHL 16C model Displays in yellow when the current gradient factor modified M Value is exceed Displays in flashing red when 100 is exceeded CEIL The current decompression ceiling not rounded to next deeper stop increment i e not a multiple of 10ft or 3m 5 TTS At plus 5 is the TTS in minutes if remaining at the current depth for 5 more minutes Shown along with TTS since it only has meaning when compared with TTS This can be used as a measure of how much you are on gassing or off gassing DocRevB Shearvvater Petrel Nitrox Recreational Mode TISSUES The tissues bar graph shows the tissue compartment inert gas tissue tensions based on the B hlmann ZHL 16C model The fastest tissue compartment is shown on the top and the slowest on the bottom Pressure increases to the right After descent The vertical black line shows the inert gas inspired pressure The boundary between the green and yellow zones is the ambient pressure The boundary
35. rates by reading the Earth s magnetic field the compass heading Is affected by anything that distorts that field or creates its own Ferromagnetic materials such as iron steel or nickel should be kept away from the Petrel 2 when using the compass A traditional compass should also not be placed too close as it contains a permanent magnet Electric motors and high current cabling such as from dive lights can also cause interference and should be kept at a distance Being inside or near a shipwreck may also affect the compass heading SHEARWATER 20 DocRevD Shearvvater Petrel SA amp EXT Marking a Heading To mark a heading press MENU left button until Mark Compass is displayed then press SELECT right button to mark the current direction The display will then jump back to the compass display The heading is shown as a pair of green triangles Mark Compass Sp Mark the heading to This feature makes it easy remember the current to determine if you are off direction course Care When the marked heading When facing the opposite is off screen an arrow direction the reciprocal points the shortest way heading is shown as a pair back of red triangles Only one heading can be marked at a time it can however be changed Once a heading has been marked there is no way to clear the heading arrows from the display Q3 SHEARWATER 21 DocRevD Shearwater Petrel SA amp EXT Compass Setup Petrel
36. s boat decks desktop computers etc can all interfere with the Earth s magnetic field Rotate to as many 3D positions as possible Upside down sideways on edge etc Compare with another compass not a smartphone those are terrible to check your calibration DocRevB Shearvvater Petrel Nitrox Recreational Mode 8 7 System Setup System Setup Date 28 Mar 2014 Date amp Time Time 02 41 am Unlock viewed in the info screens and Load Upgrade its The current date Can be is used to date the dive logs Next Edit Time can be set to either 24 hour format or am pm format Unlock Used to unlock purchased features Currently the only feature that can be unlocked is the VPM B decompression model Note however that VPM B cannot be used with the Nitrox Recreational Mode Load Upgrade Starts the Bluetooth connection then waits for commands from Shearwater Desktop program Once the countdown has started on the Petrel use the Dive Computer gt Update Firmware option in Shearwater Desktop to send the new Swfw firmware file Reset to Defaults Opens a sub menu with options to reset the settings only the decompression tissues only or both the settings and decompression tissues Resetting the settings does not affect the dive logs or system time and date Page 22 8 8 Adv Config AQV Cont LQ The Advanced Configuration Main Color White contains settings that will not Title Color change o
37. ted to compensate for the When the marked heading is When facing the opposite steel case off screen an arrow points direction the reciprocal the shortest way back heading is shown as a pair of red triangles Battery Changes When the battery is changed the Interference Since a compass operates by reading the Earth s magnetic field the compass heading is affected by anything that distorts that field or creates its own Steel objects and electric motors or cabling Only one heading can be marked at a time it can however be e g from dive lights should be kept at a distance changed Once a heading has been marked there is no way to Being close to or inside a shipwreck may also affect clear the heading arrows from the display the compass Page 15 DocRevB Shearvvater Petrel Nitrox Recreational Mode 6 Safety and Decompression Stops Safety and decompression stops are pauses inserted into the ascent to the surface in order to reduce the risk of decompression illness DCI 6 1 Safety Stop A safety stop is an optional stop added to all dives before surfacing Safety stops can be set to fixed times of 3 4 or 5 minutes set to adapt based on dive conditions or turned off completely See System Setup Deco Setup for options The Petrel does not do deep safety stops That is there are no extra stops added around 50ft to GOft 15m to 18m when ascending from a no deco dive oafety stops behave as follows
38. trox Recreational Mode is FIGURE 5 Gauge Mode optimized for Air and Nitrox diving Page 5 DocRevB Shearvvater Petrel Nitrox Recreational Mode 3 Buttons The Petrel is operated by two piezo electric buttons FIGURE 6 They are completely sealed and have no moving parts The left button is the MENU button and the right button is the CONFIRM button All operations are simple single presses There are no complex hold patterns simultaneous presses or multiple taps needed 3 1 Turning the Petrel On OK we lied There is one situation where a simultaneous button press is needed Turning On Press both buttons at the same time to turn on Other than that only single button presses are needed we promise 5 2 Button Labels Button labels FIGURE 7 make using the Petrel easy When in a menu the function of each button is labeled This means there is no need to memorize button functions just refer to the label if you get confused Page 6 e MENU Wc left button right button FIGURE 6 Petrel Buttons Two piezo electric buttons operate the Petrel Most operations are simple single button presses except for turning on which requires pressing both buttons at the same time Labels indicate the function of each button In this example the left button changes the brightness setting while the right button saves the changes FIGURE 7 Button Labels DocRevB
39. ug Do not over tighten the battery Turn off the Petrel cap NOTE Alarge coin or washer is required for this section It is a good practice to turn off the Petrel before removing NOTE Battery cap O ring is Type 112 Buna N 70 durometer the battery If removed while on then there is a small chance about 1 in 5000 that the deco tissues will be corrupted The Petrel detects this using a cyclic redundancy check CRC so there is no danger However the tissues will be lost and repetitive dives will need to be planned accordingly Remove the battery cap Insert the coin or washer into the battery cap slot Unscrew by turning counter clockwise until the battery cap is free Be sure to store the battery cap in a clean dry space FIGURE 22 Changing the Battery Exchange the battery 9 1 Battery Types Remove the existing battery by tilting the Petrel computer Insert the new battery positive contact first A small diagram on the bottom of the Petrel shows the proper orientation After changing the battery a screen will prompt for the battery type to be entered The Petrel attempts to guess what type of battery is being Accepted battery types used If the battery type is incorrect it should be manually The Shearwater Petrel can accept a wide variety of AA sized edited batteries The Petrel can accept any AA sized or 14500 size battery that outputs a voltage between 0 9V and 4 3V Having the battery type set correctly is
40. ur personal safety You really are risking your life with this activity WARNING This computer has bugs Although we haven t found them all yet they are there It is certain that there are things that this computer does that either we didn t think about or planned for it to do something different Never risk your life on only one source of information Use a second computer or tables If you choose to make riskier dives obtain the proper training and work up to them slowly to gain experience This computer will fail It is not whether it will fail but when it will fail Do not depend on it Always have a plan on how to handle failures Automatic systems are no substitute for knowledge and training No technology will keep you alive Knowledge skill and practiced procedures are your best defense except for not doing the dive of course Page 5 DocRevB Shearvvater Petrel Nitrox Recreational Mode 1 Introduction The Shearwater Petrel is an advanced dive computer for all types of diving This manual covers operation of the Nitrox gt Recreational Mode Please take the time to read this manual Your safety may 45 depend on your ability to read and understand the Petrel 3 00 displays 3 24 32 Do not use this manual as a substitute for proper dive training Al 78 and never dive beyond your training What you don t know P 2 45 can hurt you c N 1 1 Features e Up to 3 Nitrox gases includes
41. urs 10 C to 50 C Temperature Range Long Term Storage 50C to 20 C Temperature Range Battery AA Size 0 9V to 4 3V Battery Operating Life 35 Hours AA 1 5V Alkaline Display Medium Brightness 100 Hours SAFT LS14500 External Connector Socket Li Fischer 103 7 pin External O2 Sensor Type 10mV in air Type Zero offset Linear response to PPO2 Temp comp in sensor Common negative Range OmV to 100mV External O2 Sensor Input N A 100kO Resistance Weight 0 4kg Size W X L X H 84mm X 74mm X 38mm 100mm X 74mm X 38mm FCC Warning a USA Federal Communications Commission FCC This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy If not installed and used in accordance with the instructions it may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by tuning the equipment off and on the user is encouraged to try and correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the d
Download Pdf Manuals
Related Search