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

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Summary of Contents for Shearwater Petrel 3

  • Page 1 Technical Modes Operating Instructions...
  • Page 2 6�2� Semi-Closed Mode ���������������������������������������������������������������������38 6�3� Bailout Rebreather Mode ���������������������������������������������������������38 15. Glossary ............86 7. Compass ............. 39 16. Petrel 3 Specifications ......87 8. Air Integration (AI) ........40 17. Regulatory Information......87 8�1� What is AI? ����������������������������������������������������������������������������������� 40 18. Contact ............89 8�2�...
  • Page 3 Information boxes contain useful tips for requirements. Dives requiring staged decompression are substantially getting the most out of your Petrel 3� more risky than dives that stay well within no-stop limits. Diving with rebreathers and/or diving mixed gases and/or performing...
  • Page 4 1. Introduction • Optional VPM-B and DCIEM decompression models • No lockout for violating deco stops The Shearwater Petrel 3 is an advanced technical dive computer� • CNS Tracking • Gas Density Tracking Please take the time to read this manual� Your safety •...
  • Page 5 DiveCAN Rebreather another section� Monitor Model Do not change any settings on your Petrel 3 without Some sections of this manual only apply to specific understanding the consequence of the change. If models of Petrel 3� To help identify which sections are...
  • Page 6 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 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 2.4. Dive Mode Differentiation By default the Petrel 3 is set to 3 GasNx Mode� Each dive mode is designed to best suit a particular type of diving� Use the correct mode to get the best Recreational focused experience from the Petrel 3�...
  • Page 9 Closed Circuit with Open Circuit 3.1. Default Dive Setup bailout� Designed for use with a closed The Petrel 3 comes pre-configured for recreational circuit rebreather� diving� The default dive mode is 3 Gas Nitrox mode (3 • Fast switching from closed circuit GasNx)�...
  • Page 10 Technical Modes Operating Instructions Closed Circuit With Internal Setpoint 3.2. Main Screen Layout All models can be used in CC/BO mode operating The main screen shows the most important with an “internal”, user defined setpoint� In this mode information needed for technical diving� left and right positions can be configured, but the current setpoint is always displayed in the center position and cannot be removed�...
  • Page 11 9 mpm / 30 fpm ascend shallower than the current stop� (1 to 3 arrows) By default the Petrel 3 uses a 3m (10ft) last deco stop YELLOW when greater than 9 mpm / depth� You may perform your last deco stop deeper 30 fpm and less than 18 mpm / 60 fpm if you wish - deco calculations will remain accurate�...
  • Page 12 Technical Modes Operating Instructions DEPTH TIME STOP TIME 22 39 61.0 Surface Interval The Center Row When on the surface, decompression stop depth The Center row layout depends on the current mode� and time are replaced by a surface interval display showing the hours and minutes since the end of your PPO2 SurGF...
  • Page 13 Δ Technical Modes Δ Operating Instructions DEPTH TIME STOP TIME Home Screen Configuration Options Δ 60.6 22 In CC/BO mode, when using external PPO2 DEPTH TIME STOP DEPTH TIME STOP TIME 61.0 22 39 monitoring, the Cell PPO2 values occupy the center 22 39 Option 61.0...
  • Page 14 Technical Modes Operating Instructions The Bottom Row No Decompression Limit (NDL) The time remaining, in minutes, at the The bottom row of technical dive modes displays the current depth until decompression current circuit mode, active gas, No Decompression stops will be necessary� Displays in Limit (NDL), and Time To Surface(TTS)�...
  • Page 15 Technical Modes Operating Instructions Additional Information Mini NDL Replacement Display The bottom row is also used to show additional The Mini NDL replacement DEPTH TIME information� 29.2 display option reconfigures the right side of the bottom Only the bottom row changes during a dive, so critical row to allow two additional 1.23 1.25 1.27 information contained on the Top and Center Rows is...

  • Page 16: Table Of Contents

    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 17: Depth Time Stop Time

    DEPTH TIME STOP TIME 54.0 22 Technical Modes Operating Instructions SurGF SAFETY STOP 3.5. Info Screen Descriptions Compass This section contains detailed descriptions of all info SURFACE screen and custom screen elements� Last Dive Info Marked headings appear in green while reciprocal headings are shown in red�...

  • Page 18: Max Avg Avgatm

    Technical Modes Operating Instructions Maximum Depth Partial Pressure of Oxygen (PPO2) Δ The maximum depth of the current AvgATM In CC mode, displays in Flashing PPO2 3.13 dive� When not diving, displays the Red when less than 0�40 or greater maximum depth of the last dive than 1�6 by default�...

  • Page 19: Gf99

    Technical Modes Operating Instructions CNS Toxicity Percentage Gradient Factor Central Nervous System oxygen TEMP The deco conservatism value when 30/70 toxicity loading percentage� Turns the deco model is set to GF� The low Yellow when greater than 90%� and high gradient factors control °C Turns when greater than 150%�...
  • Page 20 This is similar to TTS but is PPO2 SurGF Battery expressed as a time of day� 1:31 1.15 BATTERY The Petrel 3’s battery voltage� 3.99V 3.7V Yellow Displays in when the battery The time of day at which you LiIon is low and needs replacement�...

  • Page 21: Pressure Mbar

    Technical Modes Operating Instructions Pressure Stack Timer PRESSURE mBar STACK USED REMAINING 1013 1011 0:00 3:00 SURF The pressure in millibars� Two values are shown, In CC mode a stack timer can be enabled to help keep the surface (surf) pressure and the current (now) track of CO2 Scrubber usage�...
  • Page 22 Technical 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) The fastest tissue compartment is shown on the...
  • Page 23 Technical Modes Operating Instructions 3.7. Notifications 3.6. Mini Displays This section describes the different types of Mini displays provide more options for data notifications the computer may present the diver� customization at the expense of font size� See the List of primary notifications on page 25 There 2 separately configurable mini displays that that a diver may encounter�...
  • Page 24 Technical Modes Operating Instructions Types of Notifications Persistent Notifications Persistent notifications DEPTH TIME STOP TIME There are two types of notifications displayed by this 3.0 92 complement primary dive computer� Primary notifications and persistent notifications, displaying while a notifications� dangerous condition is present Low PPO2 0.13 until the condition is resolved�...
  • Page 25 Operating Instructions 3.8. List of primary notifications Vibration Alerts In addition to visual notifications, the Petrel 3 has The following table lists primary notifications you may vibration alerts to help quickly notify the diver of see, their meaning, and steps to take to solve any warnings, errors and dive events�...
  • Page 26 Technical Modes Operating Instructions DEPTH TIME STOP TIME 13.7 Display Meaning Display Meaning Action to take Action to take GasPO2 Low Bat Warning Confirm SURFACE DEPTH TIME The internal battery is 3042 3042 LOW BATTERY INT Alternates Replace the battery. low�...
  • Page 27 GasPO2 software update� Firmware update failed, Error Confirm Try the firmware upgrade UPGRADE FAIL possibly due to a again. Contact Shearwater communications error if problem persists. or corrupted file� Page 27 Doc. 11301-Tec-RevB (2022-05-25)
  • Page 28 TIME 27.2 62 27 There is no lock-out or other penalty for violating decompression stops� Shearwater’s policy is to provide clear warnings that the decompression schedule was violated, to allow you to make decisions based on your training� This may include contacting your dive...
  • Page 29 Technical Modes Operating Instructions 4. 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 30 Technical Modes Operating Instructions 4.1. Decompression Information Example: A diver on a decompression dive to 40m/131ft for 40 minutes with GF settings of Accuracy 45/85 has two gases programmed into their computer and turned on: 21/00 & 99/00� The diver’s Decompression information displayed by this decompression schedule will be calculated based on computer, including NDL, stop depth, stop time, and...
  • Page 31 Technical Modes Operating Instructions 5. Example Dives OC Gases Deco Setup 5.1. Simple OC Tec Example Dive A1 OC 21/00 Deco Model 2 OC Off 00/00 Conserv (GF) 30/70 3 OC Off 00/00 Last Stop This is an example of displays that might be seen on a 4 OC Off 00/00 NDL Display...
  • Page 32 Technical Modes Operating Instructions 7. Max Depth - We now have a decompression DEPTH TIME STOP TIME DEPTH TIME STOP TIME requirement� Our first stop is at 12 meters and we will 29.6 16.4 need to remain there for up to one minute� Although stops are shown in minutes, the computer will PPO2 PPO2...
  • Page 33 Technical Modes Operating Instructions 5.2. Complex OC Tec Example Dive OC Gases Deco Setup This is an example of displays that might be seen on a Deco Model 1 OC 99/00 multi-gas trimix decompression dive in OC Tec Mode� Conserv (GF) 30/70 2 OC 50/00...
  • Page 34 Technical Modes Operating Instructions 6. Max depth - Once NDL hits 0, deco stops are DEPTH TIME STOP TIME DEPTH TIME STOP TIME needed� Stop requirements are now display in the top 59.3 19 27 42.4 22 24 right of the screen� TTS has increased to include deco stop time�...
  • Page 35 Technical Modes Operating Instructions CC Gases BO Gases 5.3. CC Example Dive A1 CC 10/50 1 OC 50/00 This is an example of displays that might be seen on a 2 CC 00/00 2 OC 21/00 multi-gas decompression dive in CC/BO Mode� 3 CC 00/00 3 OC...
  • Page 36 CC mode� Our 48.4 3 active diluent gas is set to 10/50, our set point is 0�7, and the Petrel 3’s battery is sufficiently charged� 1.30 1.30 1.29 7. Diluent Check - Pressing the right button a few times brings up the diluent PPO2�...
  • Page 37 Technical Modes Operating Instructions CC Example Dive (cont.) DEPTH TIME STOP TIME DEPTH TIME STOP TIME 11. First Deco Stop - The slow ascent has caused the 45.3 34 30.4 42 30 first stop to clear before we reached it� This often happens with slow ascents�...
  • Page 38 0� Gauge Mode Reset Stopwatch • If stopped when reset, Gauge Mode turns the Petrel 3 into a simple depth then it is set 0 and and time display (a�k�a� a bottom timer)� remains stopped� Resettable Average Depth Since decompression tissues are not tracked in Gauge During a dive, the average depth can be reset�...
  • Page 39 Technical Modes Operating Instructions 6.2. Semi-Closed Mode 6.3. Bailout Rebreather Mode Semi-Closed Rebreather Mode (SC/BO) behaves Bailout Rebreather Mode improves the Petrel 3’s differently than Closed Circuit mode (CC/BO) in several functionality when used with a redundant bail-out important ways� rebreather�...
  • Page 40 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 41 Use a backup analog SPG The communication is one-way� The transmitter sends data to the Petrel 3, but the dive computer does not send any data to the transmitter� Always use a backup analog...
  • Page 42 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 43 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 AI Setup section on page 73�...
  • Page 44 “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 45 Technical Modes Operating Instructions 8.3. 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 46 Technical 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 47 Operating Instructions 8.4. 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 48 SAC calculations section on page 49�, 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 49 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 50 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 50 Doc.
  • Page 51 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 52 Turn Off Surface only The main Petrel 3 menu can be accessed using the left (Menu) button from the main screen� Select Gas Main menu items differ by mode, as well as at the surface versus on a dive� The most commonly used...
  • Page 53 Technical Modes Operating Instructions Closed Circuit (int PPO2) Menu Structure Closed Circuit (ext PPO2) Menu Structure Main Menus Main Menus Main Screen Main Screen Surface only Turn Off Surface only Turn Off Surface only Switch .7->1.3 Calibrate Select Gas Sub-Menus Select Gas Start/Stop Timer When Timer...
  • Page 54 Technical Modes Operating Instructions Gauge Menu Structure Main Menus Main Screen Turn Off Surface only Start/Stop Stopwatch Sub-Menus Dive Setup Brightness Vibration on/off Test Vibration Dive Log Display Log Surface only Next Log Start Bluetooth Surface Restore Mode only Delete All Logs System Setup Surface Gauge Setup...
  • Page 55 The setpoint switch menu is used to switch between the low (default 0�7) and high (default 1�3) setpoints� The Petrel 3 will automatically exit dive mode once 1 GasPO2 These setpoints can be changed in the mode setup minute has been spent at the surface�...
  • Page 56 Technical Modes Operating Instructions Calibration Once the calibration completes, a report will be shown� This shows which sensors passed calibration, The Calibrate menu will only DEPTH TIME SURFACE and the value of the expected PPO2 based on appear when in CC mode barometric pressure and the FO2�...
  • Page 57 Technical Modes Operating Instructions Single Sensor Mode Dual sensor mode A single external O2 sensor may be used� External PPO2 monitoring is also supported for 2 sensors� To enter this mode, perform the calibration with only the middle sensor connected (sensor #2)� Access the 2 sensor mode by performing a PPO2 calibration with only sensors #1 and #2 connected�...
  • Page 58 Technical Modes Operating Instructions Calibration Problems PPO2 does not show 0.98 after calibration If you use a calibration FO2 DEPTH TIME SURFACE One sensor displays FAIL after calibration setting of 0�98 and are at This could indicate a bad DEPTH TIME SURFACE sea level, you probably sensor�...
  • Page 59 Technical Modes Operating Instructions Select Gas Radio Station Gases This menu item allows you to DEPTH TIME SURFACE pick a gas from the gases you have created� The selected PPO2 gas will be used either as the breathing gas in open circuit and bailout modes, or the DEPTH TIME...
  • Page 60 Technical Modes Operating Instructions New Style Select Gas Gases will not turn off automatically TIME The new style makes DEPTH TIME STOP 21.4 22 21 visualizing the gas list easier� Selecting a new gas will turn that gas on if it is off, but It also reduces button presses PPO2 gases will never turn off automatically�...
  • Page 61 Technical Modes Operating Instructions 9.3. Dive Setup Switch to CC/BO CC ONLY This menu item is only available in CC/BO mode� All of the Dive Setup menus DEPTH TIME SURFACE DEPTH TIME SURFACE DEPTH TIME SURFACE are available both on the surface and when diving�...
  • Page 62 SURFACE Technical Modes GasPO2 Operating Instructions 2 OC On 70/00 Define Gas Pushing the right button DEPTH TIME SURFACE (Next) will lock in the current The define gas function allows DEPTH TIME SURFACE Change Next digit, and move on to the next you to set up 5 gases in Closed digit�...
  • Page 63 Technical Modes Operating Instructions Adv. Config 1 New Style Define Gas Similar to the New Style Main Color Green Select Gas menu, the New Title Color Cyan Style Define Gas menu shows End Dive Delay 060s all gases on the screen at Bat Icon Surf + Warn once at the expense of font...
  • Page 64 The Petrel 3’s Deco Planner is intended for simple dives� The Petrel 3 also contains a separate quick NDL Planner that can be found in the Dive Setup menu Multi-level dives are not supported� of recreational modes� See the Petrel 3 Recreational Modes Manual for details�...
  • Page 65 Technical Modes Operating Instructions Result Screens For closed circuit plans, a bailout plan based on the The results are given in tables showing: programmed bailout gases will automatically be generated after the closed circuit deco summary� Stp: Stop Depth In meters or feet Stop Time In minutes Depth Time RMV PO2...
  • Page 66 DEPTH TIME SURFACE Technical Modes Operating Instructions PPO2 Conservatism Brightness Conserv. 30/70 The conservatism settings The display brightness has four fixed brightness (GF High and GF Low) can be settings plus an Auto mode� Next Edit edited in the Dive Setup menu� While diving, only the GF The fixed options are: High value can be edited�...
  • Page 67 Technical Modes Operating Instructions PPO2 Mode Voting A voting algorithm is used The next menu item is used to turn external PPO2 DEPTH TIME SURFACE to decide which of the three monitoring on and off� There are three settings: sensors are likely to be correct�...
  • Page 68 Edit review logs stored on the right (Edit) button to toggle DEPTH TIME SURFACE Petrel 3� Up to 1000 hours of the vibration function on or detailed logs can be stored at off� PPO2 the default sampling rate of 10 seconds�...
  • Page 69 DEPTH TIME DEPTH TIME SURFACE SURFACE Technical Modes Operating Instructions GasPO2 GasPO2 Display Log O2 Cal. History Display Log O2 Cal. History Use this menu to display a This menu keeps a history of list of logged dives and view external O2 cell calibrations details�...
  • Page 70 SURFACE DEPTH TIME Technical Modes DEPTH TIME SURFACE Operating Instructions GasPO2 10. System Setup Reference GasPO2 Next Log The dive log number can Next Log = 0004 be edited� This is useful if System Setup contains you want the dive computer System Setup Next Exit...
  • Page 71 This is because the Petrel 3 does not know what gas you are breathing On the Petrel 3 SA model this value is always “Int�” in this mode, and therefore cannot track inert gas (Internal fixed PPO2)� On other models, this value can loading�...
  • Page 72 By default this will show Mini NDL Display setup “Buhlmann ZHL16C GF” NDL Display The Petrel 3 has an NDL mini display function that indicating that the Bühlmann Clear Cntr can only be configured from the Deco Setup menu� Next...
  • Page 73 When a paired transmitter is not communicating, the System Setup menu is not Tx Setup T1 T2 Petrel 3 goes into a higher power scan state� This accessible during a dive� GTR Mode SM:T1+T2 increases power consumption to about 25% higher...
  • Page 74 Technical 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 75 4 CC 00/00 5 CC 00/00 The Petrel 3 has a mini display function that allows it Next Edit to show 3 pieces of information in each of the left and right custom slots at the expense of font size�...
  • Page 76 Technical Modes Operating Instructions 10.7. O2 Setup Sensor Disp Sets the sensor display mode on the center row of the main screen� This menu page is only available in Closed-Circuit (CC) or Semi-Closed (SC) mode when external PPO2 In CC mode, the available settings are: monitoring is in use�...
  • Page 77 The Petrel 3 enforces a 6m (20ft) gap between See Notifications on page 23 for more information switch up and switch down depths to prevent rapid on how these alerts are displayed�...
  • Page 78 The 90° or 120° Altitude settings allow a wider range to be seen at once� The The altitude setting on the Petrel 3 is set to Auto by default is 90°� default� In this mode the computer will automatically...
  • Page 79 (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 80 Technical Modes Operating Instructions Adv. Config 1 10.13. Advanced Config Advanced Config 1 Advanced Config Advanced configuration Main Color Green Main Colour Title Color Cyan contains items that will be Main colours can also be End Dive Delay 060s used infrequently and can Enter Adv.
  • Page 81 Technical Modes Operating Instructions Advanced Config 2 CC Min PPO2 PPO2 displays in flashing red when less than this PPO2 Limits value� (Default 0�40) This section allows changing of PPO2 limits� CC Max PPO2 PPO2 displays in flashing red when greater than this WARNING value�...
  • Page 82 Technical Modes Operating Instructions Adv. Config 3 Advanced Config 3 Button Sensitivity Button Sensitivity This menu allows some fine Left tuning of button sensitivity� Right This can be useful to adjust downward if you often experience accidental button presses� Next Edit Adv.
  • Page 83 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� Petrel 3:...
  • Page 84 When prompted, select your language and confirm Select “Download Dives” from the the update� connect tab� The Petrel 3 screen will give percentile updates A list of dives will be generated� of receiving the firmware, and then the Personal You can un-select any dive logs Computer will read “Firmware successfully sent to the...
  • Page 85 1� Press the connect icon at the bottom of the screen the update� 2� Select your Petrel 3 from the list of Bluetooth devices The Petrel 3 screen will give percentile updates of receiving the firmware, and then the mobile app will read “Firmware successfully sent to the computer”...
  • Page 86 Be sure not to cross thread the 3�6V Saft 100 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 87 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 88 Technical Modes Operating Instructions 13. Storage and Maintenance 15. 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 89 Technical Modes Operating Instructions 16. Petrel 3 Specifications 17. 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 90 Health Canada limits for the general population; consult Safety Code 6, obtainable from Health Canada’s website� Petrel 3 Dive Computer Contains TX IC: I2208A-04 C) EU and UK Conformance Statements • EU EC Type examination conducted by: SGS Fimko Oy Ltd, Takomotie 8, FI-00380 Helsinki, Finland�...
  • Page 91 Technical Modes Operating Instructions 18. Contact www.shearwater.com/contact Headquarters 100-10200 Shellbridge Way, Richmond, BC V6X 2W7 Tel: +1�604�669�9958 info@shearwater�com Page 91 Doc. 11301-Tec-RevB (2022-05-25)

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