Shearwater Petrel 3 Operating Instructions Manual
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Shearwater Petrel 3 Operating Instructions Manual

Recreational modes
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  • Page 1 Recreational Modes Operating Instructions...

  • Page 2: Table Of Contents

    6�1� Single Gas Example Dive ���������������������������������������������������������30 15. Servicing ............. 67 6�2� Multi-Gas Example Dive������������������������������������������������������������� 31 16. Glossary ............67 7. Gauge Mode ..........33 17. Petrel 3 Specifications ......68 8. Compass ............. 34 18. Regulatory Information......68 19. Contact ............69 Page 2...

  • Page 3: Conventions Used In This Manual

    Information boxes contain useful tips for decompression requirements. Dives requiring staged decompression getting the most out of your Petrel 3� are substantially riskier than dives that stay well within no-stop limits. Diving with rebreathers and/or diving mixed gases and/or performing...

  • Page 4: Introduction

    • Optional VPM-B and DCIEM decompression 1. Introduction models • No lockout for violating deco stops The Shearwater Petrel 3 is a dive computer for • CNS Tracking beginner to expert divers� • Gas Density Tracking • Quick NDL and full decompression planner built in Please take the time to read this manual�...

  • Page 5: 1�1� Notes On This Manual

    The Shearwater Petrel 3 also has several modes designed for open circuit technical and closed circuit Do not change any settings on your Petrel 3 without rebreather diving� understanding the consequence of the change. If you are unsure, consult the appropriate section of the For detailed instructions on operation in technical manual for reference�...

  • Page 6: Basic Operation

    1 mbar of pressure corresponds to approximately To turn the Petrel 3 on, press both buttons together� 1 cm (0�4”) of water� So, when at sea level, the Petrel 3 will automatically turn-on and enter dive mode when about 0�9 m (3 ft) underwater�...

  • Page 7: 2�2� Buttons

    Editing a setting Saves the setting’s value BOTH BUTTONS When Petrel 3 is off pressing MENU and SELECT at the same time will turn the Petrel 3 on� No other operation requires pressing both buttons at the same time� Page 7...

  • Page 8: 2�3� Changing Between Modes

    Recreational Modes Operating Instructions 2.3. Changing between Modes By default the Petrel 3 is set to 3 GasNx Mode� This is the most complex 3 00 of the recreational focused dive modes� All recreational modes can be distinguished by their large-font layout�...

  • Page 9: Dive Interface

    The next section lists all the dive modes available Gauge on the Petrel 3 stand alone model� Change the Dive Gauge Mode turns the Petrel 3 into a simple depth Mode from the Mode Setup menu� See details on page and time display with a dedicated layout (bottom 53�...

  • Page 10: 3�3� Main Screen

    Recreational Modes Operating Instructions 3.3. Main Screen Basic Dive Info The Basic Dive area shows: The Main Screen shows the most important • The current depth (in feet or meters) information for Air and Nitrox diving� • The dive time in minutes and seconds It is divided into three sections: Basic dive info, When on the surface, the dive time is replaced by decompression info, and the Info Row�...

  • Page 11: 3�4� Detailed Descriptions

    Recreational Modes Operating Instructions 3.4. Detailed Descriptions Ascent Rate Display Shows how fast you are currently ascending graphically� 1 arrow per 3 meters per minute (mpm) or 10 feet per Basic Dive Info Area minute (fpm) of ascent rate� The Basic Dive Info Area shows depth, dive time, ascent rate, and state of battery charge (when at the GREEN when less than 9 mpm / 30 fpm...
  • Page 12 Recreational Modes Operating Instructions Decompression Info Area Nitrogen Loading bar Graph 5 00 The nitrogen bar graph is No Decompression Limit (NDL) scaled such that it is full once decompression stops will be The time remaining, in minutes, at the needed�...
  • Page 13 Recreational Modes Operating Instructions 5 00 Configurable Info Row Configurable Center & Right Positions Many possible configurations can be set for the center The Home Screen is the default display for the info and right positions of the bottom row� row�...

  • Page 14: 3�5� Mini Displays

    Δ Recreational Modes Δ Operating Instructions Home Screen Configuration Options 3.5. Mini Displays Δ DEPTH TIME STOP TIME DEPTH TIME STOP TIME 22 39 61.0 Option 61.0 Info Display 22 39 Option Info Display Mini displays provide more options for data customization at the expense of font size�...

  • Page 15: 3�6� Info Screens

    Although these screens are generally representative GF99 SurGF CEIL of the Petrel 3 display, info screen content varies for each mode� For example, decompression related info screens are not available in gauge mode� TISSUES The next section gives detailed descriptions of the data elements shown on the info screens�...

  • Page 16: 3�7� Info Screen Descriptions

    DEPTH TIME STOP TIME 54.0 22 Recreational Modes Operating Instructions SAFETY STOP SurGF 3.7. Info Screen Descriptions Compass SURFACE Last Dive Info Screen LAST DIVE #1234 Marked headings appear in green while reciprocal headings are shown in red� Green arrows point in the direction of your mark when off course by 5˚...
  • Page 17 Recreational Modes Operating Instructions Conservatism GF99 GF99 SurGF CEIL TEMP CONSERV The conservatism level and The current gradient factor as values for the Bühlmann GF a percentage of the controlling decompression algorithm� compartment m-value (i�e� super- 40/85 °C saturation percent gradient) Read more about Decompression and Gradient Factors on page 28�...
  • Page 18 Recreational Modes Operating Instructions Ceiling Rate SurGF CEIL The current decompression ceiling RATE Numerically displays the rate of not rounded to the next deeper ascent or decent in feet or meters stop increment� (i�e� not a multiple per minute� Only available in a of 10ft or 3m)�...
  • Page 19 Recreational Modes Operating Instructions Tissues bar Graph Sample Tissue bar Graphs TISSUES TISSUES The tissues bar graph shows the tissue compartment inert gas tissue tensions based on the Bühlmann ZHL- On surface (sat� with air) 16C model� Note: Gas is 79% N (21% O , or Air) TISSUES...
  • Page 20 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, altitude is automatically accounted for and no special altitude setting is required�...

  • Page 21: 3�8� Notifications

    Recreational Modes Operating Instructions 3.8. Notifications Types of Notifications Primary Notifications This section describes the different types of Each of the primary notifications will display as notifications the computer may present the diver� a message in yellow across the bottom row until dismissed�...
  • Page 22 Recreational Modes Operating Instructions Vibration Alerts Persistent Notifications Persistent notifications In addition to visual notifications, the Petrel 3 has complement primary 5 00 vibration alerts to help quickly notify the diver of notifications� When the warnings, errors and dive events�...

  • Page 23: 3�9� Customizable Alerts

    By default the low NDL alert In addition to automatic warnings indicating 5 00 : is set to 5 minutes� potentially dangerous situations, the Petrel 3 has customizable alerts for maximum depth, maximum TIME In addition to the Primary dive time, and minimum no-decompression limit�...

  • Page 24: 3�10� List Of Primary Notifications

    Central Nervous lower PPO2 or ascend The subsequent list of notifications is not exhaustive� HIGH CNS 13.7 System (CNS) toxicity shallower (decompres- Please contact Shearwater if you experience any clock exceeded 90% sion ceiling allowing) GasPO2 unexpected errors: info@shearwater�com 1.12 Alert...
  • Page 25 GasPO2 software update� Firmware update failed, Error Confirm Try the firmware upgrade possibly due to a UPGRADE FAIL again. Contact Shearwater communications error if problem persists. or corrupted file� Page 25 Doc. 13300-REC-RevB (2022-05-02)

  • Page 26: Safety And Decompression Stops

    54 for more info� If you ascend to the surface before the safety The Petrel 3 does not do “deep safety stops”� That stop countdown finishes, the safety stop will is, there are no extra stops added around 15m to 18m appear paused, but this will disappear once (50ft to 60ft) when ascending from a no-deco dive�...

  • Page 27: 4�2� Decompression Stops

    Recreational Modes Operating Instructions 4.2. Decompression Stops Deco Stop Violation If you ascend shallower than a deco stop, the display will flash Decompression stops are mandatory stops that Descend to Deco Stop red� Significant stop violations must be followed in order to reduce the risk of will result in a “MISSED STOP”...

  • Page 28: Decompression And Gradient Factors

    Recreational Modes Operating Instructions 5. Decompression and Gradient Graph from Erik Baker’s “Clearing Up The Confusion About Deep Stops” Pressure Graph: Gradient Factors Factors 100% 80% 60% 40% The basic decompression algorithm used by this computer is Bühlmann ZHL-16C� It has been modified M-value by the use of Gradient Factors that were developed Gradient...

  • Page 29: 5�1� Decompression Information Accuracy

    Recreational Modes Operating Instructions 5.1. Decompression Information Example: A diver on a decompression dive to 40m/131ft for 40 minutes with GF settings of 45/85 Accuracy has two gases programmed into their computer and turned on: 21% O & 99% O �...

  • Page 30: Example Dives

    Recreational Modes Operating Instructions 6. Example Dives 3 00 : 6.1. Single Gas Example Dive SURFACE TIME This is an example of displays that might be seen on a simple no-decompression dive in a single gas mode 23°C 23°C (Air or Nitrox)� 10:55am 10:56am 1.

  • Page 31: 6�2� Multi-Gas Example Dive

    Recreational Modes Operating Instructions 6.2. Multi-Gas Example Dive Nitrox Gases This is an example of displays that might be seen on a multi-gas decompression dive in 3GasNX Mode� Custom 6.3m 30/70 Max Depth: 40 meters Bottom Gas: 28% O Bottom Time: 20 minutes Deco Gas: 50% O CntUp 1.
  • Page 32 Recreational Modes Operating Instructions Multi-Gas Example Dive (cont.) DECO STOP DECO STOP 12 1 6. Max depth - Once NDL hits 0, deco stops will be TIME TIME needed� Stop requirements display in place of the Safety Stop information� 7. Ascent - It is safe to ascend to 12 meters� 1 minute 21°C 21°C NX28 39...

  • Page 33: Gauge Mode

    Operating Instructions 7. Gauge Mode Stopwatch When diving, starting or stopping the Stopwatch is Gauge Mode turns the Petrel 3 into a simple depth the first menu option� STOPWATCH and time display (a�k�a� a bottom timer)� 2:56 When stopped, the word “Stopwatch”...

  • Page 34: Compass

    When more than 5° off the 22.1 marked heading, a green arrow 1.30 shows the direction back to the The Petrel 3 contains a tilt-compensated digital marked heading� compass� Also, the offset degrees to the heading are displayed Compass Features (16°...

  • Page 35: Air Integration (Ai)

    The communication is one-way� The transmitter sends Use a backup analog SPG data to the Petrel 3, but the dive computer does not send any data to the transmitter� Always use a backup analog...

  • Page 36: 9�2� Basic Ai Setup

    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 the transmitter for better reception or convenience�...
  • Page 37 000000 Reserve 048Bar 000000 Rename consumption by approximately 10%� 000000 Unpair Note that AI is never on when the Petrel 3 is turned Next Setup Edit Next Edit off� More information can be found in the the AI Setup section on page 55�...
  • Page 38 “out of air“ situation. Unlike an analog gauge, the air The center row can be customized extensively to pressure reported on the Petrel 3 will only update every 5 show a wide variety of information� seconds, so the pressure reported by the Petrel 3 must be...

  • Page 39: 9�3� Ai Displays

    Recreational Modes Operating Instructions 9.3. AI Displays Tank Pressure Display Zero 3042 Press The pressure displays are the most This section describes the display field types that are fundamental AI displays, showing used to display AI information� The display types are: pressure in the current units (psi or bar Display bar)�...
  • Page 40 Recreational Modes DEPTH TIME SURFACE Operating Instructions SAC Display GTR Display The Surface Air Consumption (SAC) display The Gas Time Remaining display shows the time, in SurGF shows the average rate of pressure change DEPTH TIME SURFACE minutes, that you could stay at the current depth until over the last two minutes, normalized to a direct ascent to the surface at a speed of 33 feet/ as if at 1 ATA pressure�...

  • Page 41: 9�4� Sidemount

    Operating Instructions 9.4. Sidemount AI RTR Display (Sidemount Only) The Redundant Time Remaining (RTR) The Petrel 3 offers some features that make gas display indicates how much gas time tracking more convenient while sidemount diving� remains if calculated only using the...

  • Page 42: 9�5� Using Multiple Transmitters

    SAC calculations section on page 43�, but add all of the relevant tank attributes When using more than two transmitters, Shearwater together as if you were using a single large tank� recommends using the Swift transmitter which actively ‘listens’...

  • Page 43: 9�6� Sac Calculations

    The time samples are taken 2 minutes apart, and P amb,ATA The Petrel 3 calculates SAC averaged over the last two is the average ambient pressure (i�e� depth) over this minutes� The data from the first 30 seconds of a dive time frame�...

  • Page 44: 9�7� Gtr Calculations

    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 Page 44 Doc.

  • Page 45: 9�8� Transmitter Connection Issues

    The indicator light on a Swift transmitter will flash This is not usually a source of problems with to indicate it is transmitting� Shearwater Swift transmitters� All compatible transmitters will power off after 2 minutes of no pressure� •...

  • Page 46: Menus

    Anything that had been previously saved will be Main Menus retained� Anything that was in the middle of editing will be discarded� Main Screen The main Petrel 3 menu can be accessed using the left (MENU) button from the main screen� Turn Off Surface...

  • Page 47: 10�2� Turn Off

    Magenta� Currently off gases can still be selected� It will be turned on automatically if it is selected� The Petrel 3 will automatically exit dive mode once Off gases are not used in decompression calculations� 1 minute (default End Dive Delay setting) has been spent at the surface�...

  • Page 48: 10�4�Dive Setup

    Recreational Modes Operating Instructions 10.4. Dive Setup NDL Planner The No-Decompression Limit (NDL) Planner is a quick The sub-menus in Dive Setup are available both on way to determine how much bottom time is available the surface and while diving (unlike System Setup until mandatory decompression stops would be which is not available while diving)�...
  • Page 49 Calculates gas consumption based on RMV The Petrel 3’s Deco Planner is intended for simple dives� The Petrel 3’s deco planner is best suited to decompression diving� For no-decompression diving, Multi-level dives are not supported� use the quick NDL Planner described on the previous page�...
  • Page 50 Recreational Modes Operating Instructions Results Screens Brightness Change the brightness of the The results are given in tables showing: computer’s screen� Stp: Stop Depth In meters or feet SURFACE The display brightness has Stop Time In minutes four fixed brightness settings Run Time In minutes Brightness Auto...

  • Page 51: 10�5� Dive Log

    Use the Dive Log menu to • Dive number review logs stored on the • Date (dd-mon-yyyy) Petrel 3� Up to 1000 hours of • Start - Time of day dive started detailed logs can be stored at SURFACE •...

  • Page 52: System Setup Reference

    When toggled on, covers recreational dive it shows deleted logs, grayed Next Edit modes� See the Petrel 3 out in the “Display Log” sub- technical modes manual for a menu� These dives can be comprehensive description of restored to the Dive Log�...

  • Page 53: 11�1� Mode Setup

    When changing to or from Gauge Mode, the set� decompression tissues are cleared� This is because the Petrel 3 does not know what gas you are breathing In Air mode this setting is fixed at 21%� in this mode, and therefore cannot track inert gas loading�...

  • Page 54: 11�2� Deco Setup

    Recreational Modes Operating Instructions 11.2. Deco Setup Last Stop Only configurable in 3 GasNx mode� Deco Model Allows you to choose where to do your last Custom mandatory decompression stop� This setting has no By default this will show 30/70 impact on safety stops�...

  • Page 55: 11�3� Ai Setup

    Tx Setup When a paired transmitter is not communicating, the T1 T2 System Setup menu is not GTR Mode Petrel 3 goes into a higher power scan state� This SM:T1+T2 accessible during a dive� SM Switch 21Bar increases power consumption to about 25% higher than with AI off�...
  • Page 56 Recreational Modes Operating Instructions Rated Pressure Unpair Zero Rated Enter the rated pressure The unpair option is simply a shortcut to reset the Pressure Pressure of the tank on which the serial number to 000000� transmitter is installed� When not using T1 or T2, for lowest power The valid range is 69 to 300 bar (1000 to 4350 psi)�...

  • Page 57: 11�4� Bottom Row

    Setup Change Save 11.6. Alerts Setup The Petrel 3 has a mini display function that allows it Alerts Setup This page is used to set to show 3 pieces of information in each of the custom up custom dive alerts for slots at the expense of font size�...

  • Page 58: 11�7� Display Setup

    The 90° or 120° Altitude settings allow a wider range to be seen at once� The The altitude setting on the Petrel 3 is fixed to Auto in default is 90°� recreational modes� This indicates that the computer...

  • Page 59: 11�9� System Setup

    (e�g� iron or nickel) object is current date� mounted very close to the Petrel 3� To be calibrated Date 8-Aug-2015 out, such an object must be mounted with the Petrel 3 Clock 08:08AM Clock such that it moves along with the Petrel 3�...

  • Page 60: 11�10�Advanced Config

    Recreational Modes Operating Instructions Adv. Config 1 11.10. Advanced Config Advanced Config 1 Advanced Config Advanced configuration Main Colour Main Color Green contains items that will be Title Color Cyan Main colours can also be Enter Adv. Config used infrequently and can End Dive Delay 060s changed for added contrast�...
  • Page 61 Recreational Modes Operating Instructions Advanced Config 2 OC Deco PPO2 All decompression predictions (Deco schedule and TTS) assume that the gas used for decompression at PPO2 Limits a given depth will be the gas with the highest PPO2 This section allows changing of PPO2 limits� that is less than or equal to this value�...

  • Page 62: Firmware Update And Log Download

    Connect to Shearwater Cloud Desktop On your Petrel 3, start Bluetooth by selecting the There are two ways to update the firmware on your Bluetooth menu item from the main menu�...
  • Page 63 Select “Download Dives” from the the update� connect tab� The Petrel 3 screen will give percentile updates of A list of dives will be displayed receiving the firmware, and then Shearwater cloud will and you can deselect any dive logs read “Firmware successfully sent to the computer”...

  • Page 64: 12�2� Shearwater Cloud Mobile

    1� Press the connect icon at the bottom of the screen 2� Select your Petrel 3 from the list of Bluetooth The Petrel 3 screen will give percentile updates of devices receiving the firmware, and then the mobile app will read “Firmware successfully sent to the computer”...

  • Page 65: Changing The Battery

    Be sure not to cross thread the 3�6V Saft 130 hours Poor battery cap’s threads� Tighten the battery cap until LS14500 snug and the Petrel 3 powers on� Do not over tighten 3�7V Li-Ion 35 hours Good the battery cap� Rechargeable NOTE: Battery cap O-rings are Type 112 Buna-N 70 Battery life is based on medium brightness�...

  • Page 66: 13�1� Behavior On Battery Change

    When deco tissues are reset: every time the dive computer is connected • Inert gas tissue loadings are set to saturated with to Shearwater Desktop or air at current atmospheric pressure Shearwater Mobile� • CNS Oxygen Toxicity set to 0% •...

  • Page 67: Storage And Maintenance

    Recreational Modes Operating Instructions 14. Storage and Maintenance 16. Glossary The Petrel 3 dive computer should be stored dry and CC - Closed circuit� Scuba diving using a rebreather clean� where exhaled gas is recirculated with carbon dioxide removed� Do not allow salt deposits to build up on the dive GTR - Gas Time Remaining�...

  • Page 68: Petrel 3 Specifications

    Recreational Modes Operating Instructions 17. Petrel 3 Specifications 18. Regulatory Information Specification Petrel 3 Model A) USA-Federal Communications Commission (FCC) THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES� Operating Modes OPERATION IS SUBJECT TO THE FOLLOWING TWO Nitrox...
  • Page 69 Code 6, obtainable from Health Canada’s website� • Depth and time measurements conform with EN13359:2000 - Diving Accessories - depth gauges and combined depth and time Petrel 3 Dive Computer Contains TX IC: I2208A-04 monitoring devices •Electronic instruments are in compliance with ETSI EN 301 489-1 Electromagnetic compatibility (EMC) standard for radio equipment and services;...

  • Page 70: Contact

    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@shearwater�com Page 70 Doc. 13300-REC-RevB (2022-05-02)

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