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Shearwater Perdix 2 Operating Instructions Manual
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Shearwater Perdix 2 Operating Instructions Manual

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Summary of Contents for Shearwater Perdix 2

  • Page 1 Technical Modes Operating Instructions...
  • Page 2 6�3� CC Example Dive ������������������������������������������������������������������������� 33 15. Servicing ............. 78 7. Gauge Mode ..........36 16. Glossary ............78 8. Compass ............37 17. Perdix 2 Specifications ......79 18. Regulatory Information......79 19. Contact ............80 Page 2 Doc. 13301-Tec-RevB (2022-05-25)
  • Page 3 Information boxes contain useful tips for requirements. Dives requiring staged decompression are substantially getting the most out of your Perdix 2� 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 • No lockout for violating deco stops • CNS Tracking The Shearwater Perdix 2 is an advanced dive computer • Gas Density Tracking for all types of diving� • Quick NDL and full decompression planner built in Please take the time to read this manual�...
  • Page 5 Underlined text indicates the presence of a link to The Shearwater Perdix 2 also has 3 modes specifically another section� designed for Open Circuit Recreational diving: Do not change any settings on your Perdix 2 without • understanding the consequence of the change. If •...
  • Page 6 For reference, normal sea level pressure is 1013 mbar and 1 mbar of pressure corresponds to approximately To turn the Perdix 2 on, press both buttons together� 1 cm (0�4”) of water� So, when at sea level, the Perdix 2 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 Perdix 2 is off pressing MENU and SELECT at the same time will turn the Perdix 2 on� No other operation requires pressing both buttons at the same time� Page 7...
  • Page 8 The breathing mode DEPTH TIME STOP TIME 28.0 indicator in the bottom left of the screen By default the Perdix 2 is set to 3 GasNx Mode� shows which mode the PPO2 computer is currently Recreational focused in� modes can be...
  • Page 9 3.2. Shock Cord Bungee or shock cord can be installed in many ways The Perdix 2 includes mounting points for either two on the Perdix 2� The Perdix 2’s holes are sized for 3/16” elastic straps or two bungee chords� cord�...
  • Page 10 (BO) operating modes� The next section lists all the dive modes available on Gauge the Perdix 2� Change the Dive Mode from the Mode Gauge Mode turns the Perdix 2 into a simple depth Setup menu� See details on page 63 and time display with a dedicated layout (bottom timer)�...
  • Page 11 Technical Modes Operating Instructions 4.3. Main Screen Layout 4.4. Detailed Descriptions In OC Tec and CC/BO modes, the main screen shows the most important information needed for technical The Top Row diving� The top row shows depth, dive time, ascent rate, decompression information and battery status�...
  • Page 12 BLUE when battery charge is OK ascend shallower than the current stop� By default the Perdix 2 uses a 3m (10ft) last deco stop YELLOW when battery needs to depth� You may perform your last deco stop deeper be replaced�...
  • Page 13 Δ TIME DEPTH TIME STOP Technical Modes Δ 61.0 Operating Instructions 22 39 The Center Row Home Screen Configuration Options Δ PPO2 SurGF DEPTH TIME STOP DEPTH TIME STOP TIME 61.0 22 39 22 39 Option 61.0 Info Display Option Info Display 1.15 PPO2...
  • 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 PPO2 information contained on the Top and Center Rows is...
  • Page 16 Although these screens are generally representative GF99 SurGF CEIL of the Perdix 2 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 Technical Modes Operating Instructions SAFETY STOP 4.6. 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� Green arrows point in the LAST DIVE #1234 direction of your mark when off course by 5˚...
  • Page 18 Technical Modes Operating Instructions Maximum Operating Depth (MOD) CNS Toxicity Percentage Only available as a custom display� AvgATM Central Nervous System oxygen In OC mode MOD is the maximum 3.13 toxicity loading percentage� Turns allowable depth of the current Yellow when greater than 90%�...
  • Page 19 GF99 is displayed in when the current gradient factor modified M-Value (GF High) is exceeded� Battery GF99 is displayed in when 100% (un-modified BATTERY The Perdix 2’s battery voltage� 3.99V M-Value) is exceeded� 3.7V Yellow Displays in when the battery LiIon is low and needs replacement�...
  • Page 20 Technical Modes Operating Instructions TIME STOP TIME 0 22 Pressure Gas Density Display The Gas Density display is only PRESSURE mBar PPO2 DENSITY 1013 1011 available as a customizable display TIME STOP TIME SURF and is not available in the info row� 0 22 The pressure in millibars�...
  • Page 21 Technical Modes Operating Instructions Stack Timer STACK USED REMAINING 0:00 3:00 In CC mode a stack timer can be enabled to help keep track of CO2 Scrubber usage� When enabled in the Advanced Config 4 menu, this timer will display how much time has elapsed either diving or while the unit is turned on, and how much time is remaining�...
  • 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 4.8. Notifications 4.7. 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 4.9. List of primary notifications Vibration Alerts In addition to visual notifications, the Perdix 2 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 49 for more Firmware update failed, Warning Confirm Error Confirm Try the firmware upgrade information. AI LOST COMMS possibly due to a UPGRADE FAIL again. Contact Shearwater communications error if problem persists. or corrupted file� Page 26 Doc. 13301-Tec-RevB (2022-05-25)
  • Page 27 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 scheduled was violated, to allow you to make decisions based on your training� This may include contacting your dive...
  • Page 28 Technical 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 Technical Modes Operating Instructions 5.1. 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 30 Technical Modes Operating Instructions 6. Example Dives OC Gases Deco Setup 6.1. 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 31: Table Of Contents

    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 32 Technical Modes Operating Instructions 6.2. 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 33 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 34 Technical Modes Operating Instructions CC Gases BO Gases 6.3. CC Example Dive A1 CC 10/50 1 OC 99/00 This is an example of displays that might be seen on a 2 CC 00/00 2 OC 50/00 multi-gas decompression dive in CC/BO Mode� 3 CC 00/00 3 OC...

  • Page 35: Depth Time Stop

    10/50, our set point is 0�7, 5� Pre-Dive 6� Diluent Check and the Perdix 2’s battery is sufficiently charged� 6. Diluent Check - Pressing the right button a few times brings up the diluent PPO2� The red indicates...

  • Page 36: Depth Time Stop Time

    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 30.4 42 30 first stop to clear before we reached it� This often happens with slow ascents�...
  • Page 37 Operating Instructions 7. Gauge Mode Stopwatch When diving, starting or stopping the Stopwatch is Gauge Mode turns the Perdix 2 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 38 When more than 5° off the 22.1 marked heading, a green arrow 1.30 shows the direction back to the The Perdix 2 contains a tilt-compensated digital marked heading� compass� Also, the offset degrees to the heading are displayed Compass Features (16°...
  • Page 39 Use a backup analog SPG The communication is one-way� The transmitter sends data to the Perdix 2, but the dive computer does not send any data to the transmitter� Always use a backup analog...
  • Page 40 Position the transmitter such that it is on the same side of your body as you wear your Perdix 2 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 41 When on, the AI system increases power Reserve 048Bar 000000 Rename consumption by approximately 10%� 000000 Unpair Note that AI is never on when the Perdix 2 is turned Next Setup Edit Next Edit off� More information about can be found in the AI Setup section on page 65�...
  • Page 42 “out of air“ situation. Unlike an analog gauge, the air The center row can be customized extensively to pressure reported on the Perdix 2 will only update every 5 show a wide variety of information� seconds, so the pressure reported by the Perdix 2 must be...
  • Page 43 Technical 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 44 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 45: O2/He Ndl Tts

    Operating Instructions 9.4. Sidemount AI RTR Display (Sidemount Only) The Redundant Time Remaining (RTR) The Perdix 2 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 46 SAC calculations section on page 47, 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 47 The time samples are taken 2 minutes apart, and P amb,ATA The Perdix 2 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 48 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 48 Doc.
  • Page 49 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 50 Technical Modes Operating Instructions 10. Menus 10.1. Menu Structure Open Circuit Menu Structure Menus perform actions and allow settings to be changed� Main Menus If no buttons are pushed for 10 seconds, the menu system will time-out, returning to the main screen� Anything that had been previously saved will be Main Screen retained�...
  • Page 51 Technical Modes Operating Instructions Closed Circuit (int PPO2) Menu Structure Gauge Menu Structure Main Menus Main Menus Main Screen Main Screen Turn Off Turn Off Surface Surface only only Switch .7->1.3 Start/Stop Stopwatch Sub-Menus Dive Setup Select Gas Brightness Vibration on/off Start/Stop Timer When Timer Test Vibration...
  • Page 52 The setpoint switch menu is used to switch between the low (default 0�7) and high (default 1�3) setpoints� The Perdix 2 will automatically exit dive mode once 1 These setpoints can be changed in the mode setup GasPO2 minute has been spent at the surface�...
  • Page 53 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 54 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 gases It also reduces button presses will never turn off automatically.
  • Page 55 Technical Modes Operating Instructions 10.3. 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 56 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 57 Technical Modes Operating Instructions Adv. Config 1 New Style Define Gas Similar to the New Style Select Main Color White Gas menu, the New Style Title Color Cyan Define Gas menu shows all End Dive Delay 060s gases on the screen at once at Bat Icon Surf + Warn the expense of font size�...
  • Page 58 The Perdix 2’s Deco Planner is intended for simple dives� The Perdix 2 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 Perdix 2 Recreational Modes Manual for details�...
  • Page 59 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 60 DEPTH TIME SURFACE Technical Modes Operating Instructions PPO2 Brightness Conservatism The display brightness has four fixed brightness Conserv. 30/70 The conservatism settings settings plus an Auto mode� (GF High and GF Low) can be Next Edit edited in the Dive Setup menu� The fixed options are: While diving, only the GF High value can be edited�...
  • Page 61 Dive number Dive Log review logs stored on the • Date (dd-mon-yyyy) Perdix 2� Up to 1000 hours of • Start - Time of day dive started detailed logs can be stored at • End - Time of day dive ended the default sampling rate of 10 •...
  • Page 62 SURFACE DEPTH TIME Technical Modes DEPTH TIME SURFACE Operating Instructions GasPO2 11. System Setup Reference GasPO2 Next Log Next Log = 0004 The dive log number can System Setup contains be edited� This is useful if System Setup you want the dive computer Next Exit configuration settings...
  • Page 63 This manual only covers OC Tec, CC/BO, and Gauge decompression calculations which rely on absolute mode� For the other modes, please see the Perdix 2 pressure� recreational diving manual� PPO2 Mode...
  • Page 64 Technical Modes Operating Instructions 11.2. Deco Setup Last Stop Deco Setup Allows you to choose where to do your last mandatory decompression stop� Deco Model Deco Model Conserv (GF) 30/70 The choices are 3m/10ft and 6m/20ft� Last Stop By default this will show “Buhlmann ZHL16C GF”...
  • Page 65 When a paired transmitter is not communicating, the System Setup menu is not Tx Setup T1 T2 Perdix 2 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 66 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 67 A1 CC 10/00 gas list� The options contained The Perdix 2 has a mini display function that allows it 2 CC 00/00 here are the same as those in to show 3 pieces of information in each of the left and the OC Gas list setup menu�...
  • Page 68 The page� Perdix 2 enforces a 6m (20ft) gap between switch up and switch down depths to prevent rapid automatic See Notifications on page 23 for more information switching between setpoints for small depth changes�...
  • Page 69 The 90° or 120° Altitude settings allow a wider range to be seen at once� The The altitude setting on the Perdix 2 is set to Auto by default is 90°� default� In this mode the computer will automatically...
  • Page 70 Allows the user to set the or ferromagnetic metal (e�g� iron or nickel) object is current date� mounted very close to the Perdix 2� To be calibrated Date 8-Aug-2015 out, such an object must be mounted with the Perdix...
  • Page 71 Technical Modes Operating Instructions Adv. Config 1 11.12. Advanced Config Advanced Config 1 Advanced Config Advanced configuration Main Color White 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 72 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 73 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 74 Connect to Shearwater Cloud Desktop On your Perdix 2, start Bluetooth by selecting the There are two ways to update the firmware on your Bluetooth menu item from the main menu� Perdix 2:...
  • Page 75 When prompted, select your language and confirm Select “Download Dives” from the the update� connect tab� The Perdix 2 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 76 1� Press the connect icon at the bottom of the screen the update� 2� Select your Perdix 2 from the list of Bluetooth devices The Perdix 2 screen will give percentile updates of receiving the firmware, and then the mobile app will read “Firmware successfully sent to the computer”...
  • Page 77 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 Perdix 2 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 78 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 79 Technical Modes Operating Instructions 14. Storage and Maintenance 16. Glossary The Perdix 2 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 80 Technical Modes Operating Instructions 17. Perdix 2 Specifications 18. Regulatory Information Specification Perdix 2 Model A) USA-Federal Communications Commission (FCC) This equipment has been tested and found to comply with Operating Modes the limits for a Class B digital device, pursuant to Part 15 of Nitrox FCC Rules�...
  • Page 81 Health Canada limits for the general population; consult Safety Code 6, obtainable from Health Canada’s website� Perdix 2 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 82 Technical 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 82 Doc. 13301-Tec-RevB (2022-05-25)
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