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Doc. 12-7834-r04 (2/16/16)

FREE MODE

FREE DIVE MODE DETAILS

• Although breathing apparatus is not utilized for free dive activities, nitrogen tissue loading remains a factor. Nitro-

gen loading is calculated based upon a fixed FO

of Air.

• Since a user has the option of alternating between SCUBA and free dive activities within a 24 hour period,

nitrogen calculations and the displayed value of No Decompression Dive Time Remaining are carried over from

one operating mode to the other, which permits the user to maintain awareness of nitrogen absorption and off-

gassing status.

• The mathematical models currently used in the i450T are based on no decompression/decompression multilevel

repetitive dive schedules.

• These algorithms do not take into account the physiological changes associated with the high pressures that

competitive type free diving can expose a diver to.

WARNINGS:

• Ensure that you know which operating mode is selected (DIVE, GAUGE, or FREE) prior to

commencing any dive.

• Conducting Free dives within a 24 hour period after conducting SCUBA dives, combined with the

effects of multiple rapid free dive ascents, increases your risk of decompression sickness. Such

activities may result in accelerated entry into decompression which could cause serious injury or

death.

• Combining competitive type free dive activities that involve multiple descents/ascents with activities

utilizing SCUBA during the same 24 hour period is not recommended. Presently, there is no data

relating to such activities.

• It is highly recommended that anyone planning to become involved in competitive type free dive

activities obtain proper instruction and training from a recognized free diving trainer. It is imperative

that the physiological affects be understood and the diver is physically prepared.

Содержание i450T

Страница 1: ...Aqua Lung International Inc 2015 Dive Computer Owner s Manual Doc 12 7834 r04 2 16 16 i450T...

Страница 2: ...ion of inert gases into the body by using a mathematical model This model is merely a way to apply a limited set of data to a large range of experiences The i450T dive computer model is based upon the...

Страница 3: ...ts a unique piece of information It is imperative that you understand the formats ranges and values of the information represented to avoid any possible misunderstanding that could result in error Rem...

Страница 4: ...2 DEPTH AL Audible Alarms 31 3 EDT AL Elapsed Dive Time Alarm 32 4 N2 AL Nitrogen Alarm 32 5 DTR AL Dive Time Remaining Alarm 33 6 TURN AL Turn Pressure Alarm 33 7 Press AL Pressure Alarm 34 SET UTIL...

Страница 5: ...RDI Repeating Depth Interval Alarm 63 5 DA 1 3 AL Depth Alarm 1 3 63 SET UTIL UTILITY 64 OP OPERATION MODE 64 1 DSD Dive Start Depth 64 2 DSI Dive Surface Interval 64 ID SN 64 INITIATING A DIVE 65 FRE...

Страница 6: ...Doc 12 7834 r04 2 16 16 6 Aqua Lung International Inc 2015 GETTING STARTED...

Страница 7: ...may sound unfamiliar INITIAL ACTIVATION i450T Watch Dive Computers are placed in a Deep Sleep mode prior to being shipped from the factory The intent is to extend storage life of the Battery for up t...

Страница 8: ...op 3 Daily Alarm or TMT Link 4 Depth ID units 5 Degrees temp or heading 6 Fraction of Oxygen 7 Value is Seconds 8 Dive Time or Dive 9 Value is Time To Surface 10 Gas TMT 11 Low Battery 12 Value is Pre...

Страница 9: ...ecific information They are also used to enter settings activate the backlight and acknowledge the audible alarm Pressing different combinations of these buttons will navigate through different menus...

Страница 10: ...L E C T A D V L I G H T M O D E A D V to access Alt screens to step down the screen advance through selections to toggle or change setpoints S E L E C T A D V L I G H T M O D E L I G H T to manually...

Страница 11: ...ETTING STARTED Aqua Lung International Inc 2015 ACTION BUTTON FUNCTION S E L E C T A D V L I G H T M O D E A D V to increase a setting value at a faster rate S E L E C T A D V L I G H T M O D E L I G...

Страница 12: ...Doc 12 7834 r04 2 16 16 12 Aqua Lung International Inc 2015 WATCH MODE...

Страница 13: ...e is set ON the time zone that is not set as the Default Time will display in the lower left of the screen Daily Alarm set on S E L E C T A D V L I G H T M O D E Date Day P M Time Default Time is AWAY...

Страница 14: ...level date blank if on Watch Main temperature OFF or time hr min colon flashing if CDT started WATCH MAIN MENU Enter the menu by pressing the MODE button Press the SEL button to choose submenus or op...

Страница 15: ...H T M O D E stop timer recall laps 1 9 save lap 1 9 S E L E C T A D V L I G H T M O D E stop and reset timer exit to Watch Main CHRONO CHRONOGRAPH The chronograph has a 9 lap memory After 9 subsequen...

Страница 16: ...selection ON or OFF options S E L E C T A D V L I G H T M O D E to move up to move down to select S E L E C T A D V L I G H T M O D E decrease value increase value to save hour min S E L E C T A D V L...

Страница 17: ...down to select 3 Time Of Day Set the Default Time Set hours then minutes S E L E C T A D V L I G H T M O D E to decrease value to increase value to save hour min flashing 4 Date Set the year mnth mont...

Страница 18: ...hat displays as the default on the Watch Main S E L E C T A D V L I G H T M O D E flashing to move up to move down to select 7 Show Dual This setting allows you to choose whether or not to show dual t...

Страница 19: ...Doc 12 7834 r04 2 16 16 19 Aqua Lung International Inc 2015 DIVE FEATURES...

Страница 20: ...ede as control shifts to slower compartments This is a feature of the decompression model that is the basis for multilevel diving one of the most important advantages that Aqua Lung dive computers off...

Страница 21: ...remaining No Decompression O2 MIN which are based on the algorithm and used for N2 O2 calculations and displays relating to Plan Mode will be reduced to the values available at the altitude level tha...

Страница 22: ...ing down to 0 min If the SS was set for OFF the display will not appear In the event that you descend 10 ft 3 m deeper than the Stop Depth for 10 seconds during the countdown or the countdown reaches...

Страница 23: ...rm DIVE GAUGE Turn Alarm TMT 1 DIVE GAUGE Press Alarm TMT in use DIVE GAUGE Loss of Link Dive Mode DIVE GAUGE Ascent Rate too fast DIVE GAUGE Depth Alarm DIVE GAUGE EDT Alarm DIVE DTR Alarm DIVE N2 Al...

Страница 24: ...ink signal The link will be restored within 4 seconds after the i450T is moved back into its correct position An interruption may also occur while the i450T is within 3 feet 1 meter of a running DPV o...

Страница 25: ...Doc 12 7834 r04 2 16 16 25 Aqua Lung International Inc 2015 DIVE SURFACE MODE...

Страница 26: ...ter a dive S E L E C T A D V L I G H T M O D E to Compass Mode to Watch Mode ALT 1 ALT 2 ALT 3 nitrox only back to Main Backlight ON OFF A D V DIVE MAIN ALT 1 LAST DIVE The ALT 1 screen displays essen...

Страница 27: ...SURF MAIN MENU To view i450T logs change settings or switch modes you must navigate through the Surf Main Menu Enter the menu by pressing the MODE button Some screens simply display data While other s...

Страница 28: ...lay as 0 00 until the Fly count down reaches 0 00 NO PREVIOUS DIVES 10 MIN AFTER A DIVE hr min 9 displays if time 9 59 PLAN This mode calculates dive depth and time limits To do so it accounts for any...

Страница 29: ...automatically overwrite the oldest data in memory when the memory becomes full If you do not remember to log or download your dives they will be lost when the memory over writes See the PC Download s...

Страница 30: ...et to 21 The AIR option will not be displayed as an FO2 setting until 24 hours elapse after the last dive NOTE When FO2 is set for AIR oxygen related data such as PO2 O2 will not be displayed at any t...

Страница 31: ...ure allows you to set a maximum depth alarm of 30 330 ft 10 100 m S E L E C T A D V L I G H T M O D E to move up to move down to select menu option S E L E C T A D V L I G H T M O D E to move up to mo...

Страница 32: ...in S E L E C T A D V L I G H T M O D E to decrease time to increase time to save setting flashing SET EDT VALUE EDT AL TRIGGERED flashing 4 N2 AL Nitrogen Alarm This feature allows you to set an alarm...

Страница 33: ...M O D E to decrease time to increase time to save setting flashing SET DTR VALUE DTR AL TRIGGERED flashing 6 TURN AL Turn Pressure Alarm This feature allows you to set an alarm to go off at a designa...

Страница 34: ...ple gas transmitters S E L E C T A D V L I G H T M O D E to decrease value to increase value to save setting flashing SET PRESSURE ALARM PRESS AL TRIGGERED flashing SET UTIL UTILITIES Whithin the Set...

Страница 35: ...lly activate the Dive Mode before any dive S E L E C T A D V L I G H T M O D E to move up to move down to select 3 UNITS IMP MET The Units feature allows you to select whether IMP imperial or MET metr...

Страница 36: ...T M O D E to decrease value to increase value to save setting SET STOP TIME flashing to save setting SET STOP DEPTH flashing 6 CONSERV Conservative Factor The Conservative feature can be set ON or OFF...

Страница 37: ...ownload your dives more frequently if you are using a shorter Sample Rate interval S E L E C T A D V L I G H T M O D E to save setting SET SAMPLING RATE flashing to increase value to decrease value 9...

Страница 38: ...elow XXXXXX XXXX XXXXXX OP MODE OPERATION MODE Op Mode allows you to choose between DIVE standard recreational dive GAUGE and FREE free diving modes of operation NOTE Once a dive is conducted in GAUGE...

Страница 39: ...SERIAL NUMBER Information displayed on the Serial Number screen should be recorded and kept with your sales receipt it will be required in the event that your i450T requires factory service S E L E C...

Страница 40: ...Doc 12 7834 r04 2 16 16 40 Aqua Lung International Inc 2015 DIVE OPERATION...

Страница 41: ...PRESSION DIVE MAIN From the Main screen you can see all critical dive parameters During a dive an audible alarm may sound and the priority of information displayed may change This is to indicate a saf...

Страница 42: ...VIEW If Deep Stop was set to ON in the UTIL Menu the Deep Stop preview screen is available after exceeding 80 ft 24 m of depth The Deep Stop is always at a depth half that of your maximum depth during...

Страница 43: ...min SAFETY STOP MAIN If triggered the Safety Stop will activate upon ascent to within 5 ft 1 5 m deeper than the Safety Stop depth on a No Deco dive The stop time will then countdown to 0 min While S...

Страница 44: ...s design If you are following these dive profiles Aqua Lung advises that you should not use an i450T If you exceed certain limits the i450T will not be able to help you get safely back to the surface...

Страница 45: ...not to switch will display The i450T will maintain the current gas without switching The diver may overide the i450T and force the gas switch by pressing the SELECT button during the DO NOT SWITCH TO...

Страница 46: ...redit given the deeper you are below the Stop Depth indicated You should stay slightly deeper than the required Stop Depth indicated until the next shallower Stop Depth appears Then you can slowly asc...

Страница 47: ...sing credit begins required Decompression Stop Depths and Time will decrease toward zero The N2 Bar Graph will recede into the No Decompression zone and operation will revert to No Decompression mode...

Страница 48: ...100 m Gauge 400 ft 120 m is the depth at which the i450T can properly perform calcu lations or provide accurate display information Upon ascending above the maximum functional depth current depth will...

Страница 49: ...all functions are restored flashing HIGH PO2 Warning at Alarm Set Point value minus 20 Alarm at Set Point value except in Deco then at 1 60 only Warning When PO2 partial pressure of oxygen increases t...

Страница 50: ...alarm sounds At the same time the UP message up arrows and the O2 SAT value will flash in place of DTR until surfacing HIGH O2 SAT OXYGEN SATURATION Warning at 80 to 99 240 OTU Alarm at 100 300 OTU W...

Страница 51: ...ce DURING AUDIBLE ALARM AFTER AUDIBLE ALARM flashing alternating with Deco Stop depth and time Alarm On Surface If O2 SAT is 100 upon surfacing while in No Deco O2 SAT 100 will flash until the O2 SAT...

Страница 52: ...Doc 12 7834 r04 2 16 16 52 Aqua Lung International Inc 2015 GAUGE MODE...

Страница 53: ...V L I G H T M O D E to Compass Mode to Watch Mode ALT 1 ALT 2 back to Main Backlight ON OFF A D V GAUGE SURF MAIN MENU To view i450T logs change settings or switch modes you must navigate through the...

Страница 54: ...E to move up to move down to select option S E L E C T A D V L I G H T M O D E to move up to move down to select option S E L E C T A D V L I G H T M O D E to move up to move down to save setting SUR...

Страница 55: ...DV3 If you descend deeper than the maximum functional depth the audible alarm will sound and the alarm LED will flash At the same time the UP message with up arrows will flash and depth will only indi...

Страница 56: ...Doc 12 7834 r04 2 16 16 56 Aqua Lung International Inc 2015 FREE MODE...

Страница 57: ...s associated with the high pressures that competitive type free diving can expose a diver to WARNINGS Ensure that you know which operating mode is selected DIVE GAUGE or FREE prior to commencing any d...

Страница 58: ...o view i450T Free Dive Logs change settings or switch modes you must navigate through the Surf Main Menu Enter the menu by pressing the MODE button Some screens simply display data while other screens...

Страница 59: ...L E C T A D V L I G H T M O D E to reset timer to start and stop timer RUN icon run timer no icon CDT min sec COUNTDOWN TIMER CDT SETUP This screen allows you to set the CDT time from 0 01 9 59 min s...

Страница 60: ...ep backward through log records DAY LOG DATA 1 S E L E C T A D V L I G H T M O D E DAY LOG DATA 2 back to Log Hist Menu max depth dive time min sec 9 displays if time exceeds 9 59 minimum temperature...

Страница 61: ...Audible Alarm OFF disables sounding during all alerts while operating in Free Mode It does not affect any alarms that are triggered while operating in Dive or Gauge Modes Full Hist History The Full Hi...

Страница 62: ...dive S E L E C T A D V L I G H T M O D E to move up to move down to select option OFF or ON returns to Set Alarms Menu 3 RTI Repeating Time Interval Alarm The RTI Alarm allows you to set an alarm to...

Страница 63: ...E to move up to move down to select option OFF or ON returns to Set Alarms Menu flashing 5 DA 1 3 AL Depth Alarm 1 3 There are 3 Free DA s Depth Alarms that can be set at progressively deeper depths i...

Страница 64: ...face Main screen when an ascent is made above 3 FT 0 9 M for 1 second S E L E C T A D V L I G H T M O D E decrease value increase value to save 2 DSI Dive Surface Interval The intent of the DSI featur...

Страница 65: ...5 seconds Below is a diagram to help you navigate Free Dive Mode functions start stop timer reset timer FREE DIVE MAIN The Free Dive Main provides basic information including depth no deco time dive...

Страница 66: ...ible alarm will sound again At this time the N2 Bar Graph segments will flash and NO DEC no deco time will be displayed as 0 min When the audible alarm is silenced the N2 Bar Graph NO DEC no deco and...

Страница 67: ...Doc 12 7834 r04 2 16 16 67 Aqua Lung International Inc 2015 COMPASS MODE...

Страница 68: ...COMPASS MODE Aqua Lung International Inc 2015 COMPASS DISPLAY ICONS 1 Reference Mode 2 Turn Left 3 Diver s Direction lubber line 4 Turn Right 5 Tilt 20 off level 6 Heading Degrees 7 Dynamic North or...

Страница 69: ...ss before using it as your primary device for navigation Failure to do so could result in serious errors relating to activities involving navigation S E L E C T A D V L I G H T M O D E back to Previou...

Страница 70: ...Reverse selection will assign the reciprocal heading of the direction the compass is pointing REF MODE surface REVERSE REF dive course heading correction arrow reference heading icon cardinal interca...

Страница 71: ...e diagram is completely drawn and a Passed or Failed message is displayed CAL PASSED 3 second countdown to completion CAL FAILED 3 second countdown SET DECLIN DECLINATION Magnetic declination or varia...

Страница 72: ...ents flash until the ascent is slowed See pg 21 for further details Depth Alarm Depth digits flash until shallower than the alarm depth set flashing flashing TIMEOUT The Compass Mode will timeout afte...

Страница 73: ...Doc 12 7834 r04 2 16 16 73 Aqua Lung International Inc 2015 REFERENCE...

Страница 74: ...alled on your PC prior to use of the Interface System The i450T is configured with a Data Port located on the side that enables it to be connected to a PC USB port us ing the special Interface Cable T...

Страница 75: ...hanges to PC or MAC COMM CON NECTED which remains displayed until completion of the upload download operation Then the Watch Main screen is displayed and the cable disconnected The download software w...

Страница 76: ...OT attempt to use it for diving until it receives proper service by the Aqua Lung factory or an authorized regional distributor Data Retention When the battery is removed settings and nitrogen oxygen...

Страница 77: ...ring must be a genuine Aqua Lung part that can be purchased from an authorized Aqua Lung dealer Use of any other O ring will void the warranty Very lightly lubricate the new O ring with silicone greas...

Страница 78: ...ing in Watch Mode after a dive measurements are taken every 15 minutes during the 24 hour period after surfacing Measurements are only taken when the unit is dry Two readings are taken the second read...

Страница 79: ...Doc 12 7834 r04 2 16 16 79 Aqua Lung International Inc 2015 TECHNICAL DATA...

Страница 80: ...3 0 03 0 03 0 03 0 03 0 03 180 0 05 0 04 0 04 0 04 0 03 0 03 0 03 0 03 0 03 0 03 0 03 0 03 190 0 04 0 04 0 04 0 03 0 03 0 03 0 03 0 03 0 03 0 03 0 03 0 00 PZ ALGORITHM NDLS HR MIN AT ALTITUDE METRIC 0...

Страница 81: ...o 2 135 EL4 7 001 to 9 000 2 136 to 2 745 EL5 9 001 to 11 000 2 746 to 3 355 EL6 11 001 to 13 000 3 356 to 3 965 EL7 13 000 3 965 OXYGEN EXPOSURE LIMITS from NOAA Diving Manual PO2 ATA MAX DURATION SI...

Страница 82: ...t recent DIVE GAUGE dives in memory for viewing After 24 dives adds 25th dive in memory and deletes the oldest dive Altitude Operational from sea level to 14 000 feet 4 270 meters elevation Measures a...

Страница 83: ...o Surface 0 to 99 min display if 99 min 1 minute No Decompression Deep Stop Time 2 to 0 min 1 minute No Decompression Safety Stop Time 5 to 0 min 1 minute Decompression Stop Time 0 to 999 min 1 minute...

Страница 84: ...ation This equip ment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications The...

Страница 85: ...GAUG GAUGE Digital Gauge Dive Mode GTR Gas Time Remaining H2O Water HIST History IMP Imperial measure LAST Previous dive LO Low battery M Meters depth MET Metric MFD Maximum Functional Depth equipment...

Страница 86: ...www aqualung com...

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