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Shearwater Petrel 3, Руководство по эксплуатации

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Page 26

Doc. 13300-REC-RevB (2022-05-02)

Recreational Modes 
Operating Instructions

4. 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)�

4.1. Safety Stops

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 Deco Setup 
on page 54 for more info� 

The Petrel 3 does not do “deep safety stops”� That 
is, there are no extra stops added around 15m to 18m 
(50ft to 60ft) when ascending from a no-deco dive� 

Safety stops behave as follows:

Safety Stop Required

Once the depth exceeds 11m (35ft), 
a safety stop counter will appear in 
the top right corner of the display� 

Automatic Countdown

Countdown begins once the depth 
becomes shallower than 6m (20ft )� 
Countdown will continue while the 
depth remains in the range of 2�4m 
to 8�3m (7ft to 27ft)�

Countdown Paused

If the depth goes outside of the 
range 2�4m to 8�3m (7ft to 27ft), 
then the countdown pauses, and 
the remaining time displays in 
yellow� 

No Lockout for omitting

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, the safety stop will 
appear paused, 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�

35ft /11m

Safety Stop Required / 

Countdown Reset

20ft /6m

Countdown Begins

27ft /8.3m

Countdown Paused

7ft /2.4m

Countdown Resumed

Countdown Paused

Counting

Paused

Safety Stop Thresholds - Not to scale

Safety Stop Required

Safety Stop Paused

Safety Stop Counting Down

Safety Stop Complete

When the countdown reaches zero, 
the display changes to “Complete” 
and you are now clear to ascend to 
the surface�

Countdown Reset

The countdown will reset if the depth once again 
exceeds 11m (35ft)�

Safety Stop Paused

Содержание Petrel 3

Страница 1: ...Recreational Modes Operating Instructions...

Страница 2: ...nformation Accuracy 29 6 Example Dives 30 6 1 Single Gas Example Dive 30 6 2 Multi Gas Example Dive 31 7 Gauge Mode 33 8 Compass 34 9 Air Integration AI 35 9 1 What is AI 35 9 2 Basic AI Setup 36 9 3...

Страница 3: ...e 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...

Страница 4: ...factors standard Optional VPM B and DCIEM decompression models No lockout for violating deco stops CNS Tracking Gas Density Tracking Quick NDL and full decompression planner built in Simultaneous wire...

Страница 5: ...ions for the following Petrel 3 models in recreationl modes Stand Alone Model SA Fischer Connector Model FC Analog Cable Gland Model ACG Recreational mode features apply to all listed models 1 1 Notes...

Страница 6: ...the auto on occurs at about 3 m 10 ft underwater when at an altitude of 2000 m 1 4 Customizable Splash Screen After turning on the Petrel 3 Splash Screen is displayed for 2 seconds Customizable start...

Страница 7: ...ue Don t worry about remembering all the button rules below Button hints make using the Petrel 3 easy SELECT right button Brightness Change Save Med Brightness MENU hint SELECT hint MENU Left button F...

Страница 8: ...ical Modes Manual Shearwater recommends using the simpler recreational diving layout for simple single gas no decompression diving Switch between modes in the mode setup menu See details on page 53 3...

Страница 9: ...d to best suit a particular type of diving Air Designed for use during recreational air only no decompression diving activities Air 21 oxygen only not switchable underwater Nitrox Single Gas Designed...

Страница 10: ...nfigured to display a variety of different information By default they show maximum depth time of day and temperature See Configurable Info Row on page 13 for customization options Pressing the SELECT...

Страница 11: ...al When on the surface the dive time is replaced by the surface interval in hours and minutes Beyond 96 hours 4 days it displays in days Air 21m o 23 C 10 55am MAX ft 45 DECO STOP 6 2 m min 0 Ascent R...

Страница 12: ...imit Default 5 minutes Important All decompression information including Deco Stops NDL and Time to surface are predictions that assume Ascent rate of 10mpm 33fpm Decompression stops will be followed...

Страница 13: ...s used the value Air is displayed For all other gases it displays Nx Nitrox followed by the O2 The gas will display in yellow if a better gas is available 3 GasNx mode only The gas will display in fla...

Страница 14: ...L DEPTH TIME DilPO2 PPO2 61 0 1 15 0 99 TIME 56 22 39 1 SurGF 83 STOP TTS OC 15 40 O2 HE NDL DEPTH TIME FiO2 PPO2 61 0 1 15 0 32 TIME 56 22 39 1 SurGF 83 TIME TTS OC 50 00 0 27 O2 HE NDL 11 CEIL 13 2...

Страница 15: ...Petrel 3 display info screen content varies for each mode For example decompression related info screens are not available in gauge mode The next section gives detailed descriptions of the data eleme...

Страница 16: ...nfo Screen Descriptions Last Dive Info Screen Maximum depth and dive time from the last dive Only available at the surface Air Integration Only available if AI feature is turned on The contents of the...

Страница 17: ...0 20 0 CONSERV 7 TEMP C CNS Med 40 85 MOD CNS 11 m min PPO2 21 271 SURFACE MOD CNS 101 m min PPO2 21 271 SURFACE GF99 The current gradient factor as a percentage of the controlling compartment m value...

Страница 18: ...tom display Ceiling The current decompression ceiling not rounded to the next deeper stop increment i e not a multiple of 10ft or 3m Only useful in decompression diving Time To Surface The Time To Sur...

Страница 19: ...above ambient pressure extend into the yellow and tissues that are supersaturated above the M Value extend into the red Note that the scale for each tissue compartment is different The reason the bars...

Страница 20: ...e FO2 fraction of O2 although the displayed PPO2 is still correct The surface pressure is set based on the lowest pressure the Petrel 3 sees in the 10 minutes prior to computer turn on Therefore altit...

Страница 21: ...tical Warnings flash between inverted and normal text Doesn t flash NX32 PPO2 PPO2 1 49 1 49 Sample warning a better gas is available NX32 PPO2 PPO2 1 49 1 49 Sample critical warning Continuing to bre...

Страница 22: ...re needed Vibration Alerts In addition to visual notifications the Petrel 3 has vibration alerts to help quickly notify the diver of warnings errors and dive events If turned on attention vibration al...

Страница 23: ...low when greater than the Alert value The time alert will only fire once per dive Low NDL Alert By default the low NDL alert is set to 5 minutes In addition to the Primary notification which can be di...

Страница 24: ...TOP DEPTH TIME 13 7 42 15 2 Warning Confirm 1 12 GasPO2 Display Meaning Action to take The internal battery is low Replace the battery The decompression tissue inert gas loading has been set to defaul...

Страница 25: ...or display The computer has reset to recover from an unexpected software condition If this occurs more than once over a long period please report to Shear water Research Inc This reset shows up after...

Страница 26: ...down will continue while the depth remains in the range of 2 4m to 8 3m 7ft to 27ft Countdown Paused If the depth goes outside of the range 2 4m to 8 3m 7ft to 27ft then the countdown pauses and the r...

Страница 27: ...wreck or from a decompression requirement adds significant risk Have a plan to handle failures and never rely solely on a single source of information There is no lock out or other penalty for violati...

Страница 28: ...40 85 The system provides settings that are more aggressive and more conservative than the default Do not edit GF values until you understand the effects Graph from Erik Baker s Clearing Up The Confus...

Страница 29: ...ecompression predictions will be displayed as if the switch is about to occur in the next 5 seconds Divers can encounter longer than expected decompression stops as well as inaccurate time to surface...

Страница 30: ...5 minutes it turns yellow indicating that we should begin making our ascent to avoid a decompression obligation 5 Ascent As we ascend our NDL begins increasing again indicating that we can stay a bit...

Страница 31: ...Setup menu 3 Plan Dive Use the decompression planner found in Dive Setup to check the total runtime decompression scheduled and gas requirements for the dive with current settings The on board deco pl...

Страница 32: ...an approaching deco stop A green check will appear when within 1 8m deeper than the deco stop depth 10 Missed Deco Stop If you ascend shallower than the decompression ceiling the Deco information will...

Страница 33: ...iving starting or stopping the Stopwatch is the first menu option When stopped the word Stopwatch displays in red When non zero the stopwatch can be reset Reset behavior depends on state If running wh...

Страница 34: ...g the True North setting The magnetic declination varies around the world so will need to be readjusted when traveling Magnetic inclination or magnetic dip is how much the Earth s magnetic field point...

Страница 35: ...nd critical gas pressure warnings 9 1 What is AI AI stands for Air Integration On the Petrel 3 this refers to a system that uses wireless transmitters to measure the gas pressure in a SCUBA tank and t...

Страница 36: ...e used Position the transmitter such that it is on the same side of your body as you wear your Petrel 3 handset Range is limited to approximately 1 m 3 ft A high pressure hose may be used to relocate...

Страница 37: ...body All communications are coded with this number so that the source of each pressure reading can be identified When AI Mode is set to Off the AI sub system is completely powered down and does not co...

Страница 38: ...ed by the Petrel 3 must be monitored for longer than that we suggest 10 15 seconds to ensure the tank valve is open Including a regulator purge test followed by 10 15 seconds of air pressure monitorin...

Страница 39: ...Communication Warnings Low Transmitter Battery Warnings Reserve Pressure Critical Pressure No communication for 30 to 90 seconds No communication for more than 90 seconds Transmitter battery should b...

Страница 40: ...title indicates which transmitter is being used for the SAC calculations in a dark gray font SM indicates that Sidemount SAC is selected The tank s included in the SAC calculation are selected in the...

Страница 41: ...Mode option to the desired SM combination Use Identical Tanks For Sidemount Sidemount features were designed assuming the sidemount tanks are of identical volume This removes the need to enter tank v...

Страница 42: ...ansmitters that can be run concurrently For more details see the Swift Operating Instructions Manual Using Multiple Transmitters With The Same Transmission Interval May Result in Lost Comms When using...

Страница 43: ...o easy to setup incorrectly SAC has the great property of not requiring any setup making it the simplest and most reliable choice The drawback is that it is not transferable between tanks of different...

Страница 44: ...ng Why is GTR limited to no deco Currently Shearwater does not believe that GTR is the proper tool for decompression dives especially those involving multiple gases This isn t to say AI in general is...

Страница 45: ...Bring the handset within range 1m 3ft of the transmitter Having the transmitter too close less than5 cm 2 inches can also cause communication loss If the No Comms is intermittent Search for sources o...

Страница 46: ...reduce button presses In the following section each item will be covered in detail Adaptive Menus Only menus necessary for the current mode are shown This keeps operation simple prevents mistakes and...

Страница 47: ...o pick a gas from the gases you have created Gases will not turn off automatically Selecting a new gas will turn that gas on if it is off but gases will never turn off automatically It is important to...

Страница 48: ...expected to be used turned on will result in inaccurate time to surface decompression stop and decompression time information being displayed m 0 SURFACE 22 15 h m 0 0 Next Change On Off 99 50 28 Not...

Страница 49: ...5 Max 180 Depth Time RMV 040 15 020 Exit Plan Ready to Plan Dive OC GF 30 70 Last Stop 3m Start CNS 0 Depth Time RMV 040 15 020 When used during a dive Computes the decompression profile assuming the...

Страница 50: ...ve time the time spent on deco and final CNS after the last page of the decompression schedule OC OC 040 020 15 Gas Usage in Liters Depth Time RMV 50 287 28 1534 Brightness Change the brightness of th...

Страница 51: ...ough your exposure suit Dive Log 43min 01 Jan 1 Next View 22m 50min 01 Jan 2 18m 08 Aug 2015 Back 28 2m 15 8m 5 43pm 6 40pm 57min DIVE Om 28m Avg Start End 27 Max More Select a dive to view from the D...

Страница 52: ...h is used for both firmware uploading and dive log downloading Use this option to initialize Bluetooth on your dive computer 11 System Setup Reference System Setup contains configuration settings toge...

Страница 53: ...PPO2 In air and Nitrox mode this is where you set the Maximum Operating Depth PPO2 of your breathing gas The Default is 1 4 Do Not change this value unless you are sure you know what you are doing 11...

Страница 54: ...page 28 Last Stop Only configurable in 3 GasNx mode Allows you to choose where to do your last mandatory decompression stop This setting has no impact on safety stops The choices are 3m 10ft and 6m 2...

Страница 55: ...ber Setup Every transmitter has a unique 6 digit serial number This number is etched onto the side of the transmitter Enter the serial number to pair the transmitter to T1 This number only needs to be...

Страница 56: ...be customized per tank The options are First Character T S B O or D Second Character 1 2 3 or 4 Unpair The unpair option is simply a shortcut to reset the serial number to 000000 When not using T1 or...

Страница 57: ...vibration function from this page See Customizable Alerts on page 23 for more information on how these alerts are displayed 11 4 Bottom Row Configure and preview the bottom row in this menu The left...

Страница 58: ...e is measured and saved every 15 seconds A 10 minute history of these pressure samples is kept Immediately after turn on this history is examined and the minimum pressure is used as the surface pressu...

Страница 59: ...or nickel object is mounted very close to the Petrel 3 To be calibrated out such an object must be mounted with the Petrel 3 such that it moves along with the Petrel 3 Calibrate the Compass Each Batt...

Страница 60: ...1 Main Colour Main colours can also be changed for added contrast Default is green but can be changed to red Title Colour The title colors can be changed for added contrast or visual appeal Default is...

Страница 61: ...le and TTS assume that the gas used for decompression at a given depth will be the gas with the highest PPO2 that is less than or equal to this value Default 1 61 Suggested gas switches when the curre...

Страница 62: ...rwater Cloud Desktop On your Petrel 3 start Bluetooth by selecting the Bluetooth menu item from the main menu Upgrading the firmware resets decompression tissue loading Plan repetitive dives according...

Страница 63: ...ect Update Firmware from the connect tab Shearwater Cloud Desktop will automatically select the latest available firmware When prompted select your language and confirm the update The Petrel 3 screen...

Страница 64: ...es Select Download Dives A list of dives will be displayed and you can deselect any dive logs you don t want to download then press OK Shearwater Cloud will transfer the dives to your smart phone Upda...

Страница 65: ...ross thread the battery cap s threads Tighten the battery cap until snug and the Petrel 3 powers on Do not over tighten the battery cap NOTE Battery cap O rings are Type 112 Buna N 70 durometer Batter...

Страница 66: ...n repetitive dives Like the clock the decompression tissue loading is saved every 16 seconds to permanent memory when on and every 5 minutes when off When the battery is removed the tissues remain sto...

Страница 67: ...service centers Contact Info shearwater com for service requests Shearwater recommends service of all dive computers every 2 years by an authorized service center Evidence of tampering will void your...

Страница 68: ...ission FCC THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS 1 THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE AND 2 THIS DEVICE MUST ACCEPT ANY IN...

Страница 69: ...ith ETSI EN 301 489 1 Electromagnetic compatibility EMC standard for radio equipment and services Part 1 Common technical requirements EN 55035 2017 Electromagnetic compatibility of multimedia equipme...

Страница 70: ...Doc 13300 REC RevB 2022 05 02 Recreational Modes Operating Instructions 19 Contact www shearwater com contact Headquarters 100 10200 Shellbridge Way Richmond BC V6X 2W7 Tel 1 604 669 9958 info shearwa...

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