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VT 4.0 OPERATING MANUAL

Doc. No. 12-5213-r02 (9/6/11)

ADDITIONAL INFORMATION PERTAINING TO FREE DIVE MODE

Although breathing apparatus is not utilized for FREE Dive activities, nitrogen tissue loading remains a factor. Nitrogen loading is

calculated based upon a fixed FO2 of AIR.

Since a user has the option of alternating between NORM (SCUBA) and FREE Dive activities within a 24 hour period, nitrogen calculations

and the displayed value of No Deco Dive Time Remaining (NDC Time) are carried over from one operating mode to the other, which

permits the user to maintain awareness of nitrogen absorption and offgasing status.

The mathematical models currently used in the VT 4.0 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 (NORM, GAUG, 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 VT 4.0

Страница 1: ...1 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 VT 4 0 DIVE COMPUTER OPERATING MANUAL...

Страница 2: ...SAFETY STOP 22 DIVE TIME REMAINING DTR 22 No Deco DTR NDC 22 O2 DTR OTR 22 AIR TIME REMAINING ATR 23 NORM Dive Mode Structure 23 NORM DIVE MODES 24 NO DECO MAIN AND ALTS 25 DEEP STOP DS 26 SAFETY STOP...

Страница 3: ...Dive Computer with Free Dive Mode and or Wireless Data Transmission U S Patent no 7 797 124 Air Time Remaining U S Patent no 4 586 136 and 6 543 444 and Data Sensing and Processing Device U S Patent...

Страница 4: ...4 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 FEATURES FUNCTIONS...

Страница 5: ...ithm type DTR Dive Time Remaining DURA Duration backlight E East compass EDT Elapsed Dive Time EL Elevation altitude FO2 Fraction of Oxygen FORM Format date time FREE Free Dive Mode FT Feet depth GAUG...

Страница 6: ...to display alpha numeric messages and measured values as well as Menu type systems for selection of settings and various auxiliary functions It also serves as the Digital Compass which can be accesse...

Страница 7: ...rt beeps which cannot be disabled sound when Ascent Rate is 51 to 60 FPM 15 1 to 18 MPM when deeper than 60 FT 18 M or 26 to 30 FPM 7 5 to 9 MPM at 60 FT 18 M and shallower FREE Dive Elapsed Dive Time...

Страница 8: ...ttery icon shell only will flash for 5 seconds then the unit shuts off completely VT 4 0 LOW BATTERY DURING A DIVE 2 75 volts warning level Backlight is completely disabled All other functions continu...

Страница 9: ...able until a Transition time elapses The reason for this is that making a descent during the first 10 minutes after surfacing from a NORM or GAUG dive or the first 1 minute after surfacing from a FREE...

Страница 10: ...10 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 NORM SURFACE MODES...

Страница 11: ...2 sec to activate Backlight NORM SURF ALT 2 information includes Fig 8 Altitude graphic if EL2 to EL7 blank if Sea level Time of Day hr min with graphic A or P Temperature with icon and graphic F or C...

Страница 12: ...es of the next 3 000 foot 915 meter higher Altitude Refer to tables in back PDPS information includes Fig 11A B Plan Depth value with FT or M icon Nx and PZ icons if they apply Max Depth allowed with...

Страница 13: ...when dive ended FO2 value set for Gas in used when dive ended with icon S 2 sec to revert to Log Menu S 2 sec at any time to revert to Log Menu NORM GAUG SET MENU The Set Menu selection provides acce...

Страница 14: ...ed in the unit Graphic LCD with 01 or higher indicating the Display s revision number This number will change if Firmware is updated by factory service or by future download of revised firmware from t...

Страница 15: ...2 Gas 1 is set for Nitrox 21 to 100 10 minutes on the surface after that dive the FO2 Gas 1 will be displayed as 50 and further dives will be calculated based on 50 O2 for oxygen calculations and 21 O...

Страница 16: ...O DUR with Set Point 5 10 or 15 SEC time backlight remains on SAMPLE with Set Point 2 15 30 or 60 SEC rate data is recorded for PC download TO SET TMT MENU to access Set TMT menu These items apply to...

Страница 17: ...flash the 2nd digit Repeat A M S button action until all digits are set with operation then reverting to the Set TMT Menu with SET solid SET T Time Date Menu information includes Graphics SEt t and ME...

Страница 18: ...te A 2 sec to step forward down through selections M 2 sec to step back up through selections S 2 sec when the pointer icon is next a selection will save it as the Dive Main and revert to the Set Menu...

Страница 19: ...19 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 DIVE MODE FEATURES...

Страница 20: ...front of the TMT Best reception is achieved when the VT 4 0 is within less than 4 feet 1 2 meter of the TMT When installed into the high pressure ports of the Regulator First Stages the TMTs must be...

Страница 21: ...sly and the TLBG displays the one that is in control of your dive at any given time VARI The VARI Fig 38b provides a visual representation of ascent speed i e an ascent speedometer The segments repres...

Страница 22: ...it will be disabed for the remainder of that dive There is no Penalty if you surface prior to completing the SS or ignore it If set for Timer On Upon ascending to 20 FT 6 M for 1 second on a No Deco d...

Страница 23: ...that you selected during setup End Pressure Alarm Setting ATR is displayed on the Dive Main screens Fig 42a ATR Alarm When ATR decreases to 5 minutes the Audible will sound and the ATR time digits an...

Страница 24: ...24 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 NORM DIVE MODES...

Страница 25: ...ccess Gas TMT Switching S 2 sec to activate Smartglo Backlight or acknowledge alarms S 2 sec to access Compass These items can only be accessed while viewing the Main No Deco Alt 1 information include...

Страница 26: ...g 44 2 is similar to No Deco ALT 1 Fig 45 3 is similar to No Deco ALT 2 Fig 46 4 is similar to No Deco ALT 3 Fig 47 SAFETY STOP MAIN information includes Fig 50A B Current Depth with FT or M icon Nx P...

Страница 27: ...N information includes Fig 52 Current Depth with FT or M icon Nx PZ CF icons if they apply Graphic DECO STOP with Stop icon arrows and bar Stop Depth with graphic FT or M and Stop Time up to 599 min w...

Страница 28: ...TLBG will flash Two Up Arrows will also flash until within 10 FT 3 M of and below the required Stop Depth of 60 FT 18 M Once within 10 FT 3 M of and below the required Stop Depth the full Stop icon sm...

Страница 29: ...vides the time remaining of the 24 hours required before normal operation can resume with full features and functions HIGH PO2 Warning at Alarm Set Point value minus 0 20 1 00 to 1 40 Alarm at Set Poi...

Страница 30: ...end When O2 reaches 100 the Audible will sound again during which the O2 value 100 and 2 Up Arrows will flash until on the surface Fig 68 The full TLBG remains on solid as a reminder of Deco A 2 sec t...

Страница 31: ...31 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 GAS TMT SWITCHING...

Страница 32: ...d ATR will increase to maximum after 1 minute without a change in transmitted Pressure Gas Switch Alarm If a switch to the Gas would result in PO2 1 60 the Audible will sound and a warning message wil...

Страница 33: ...LY LOG SET MENU OP MODE HISTORY VT 4 0 ID BATT TMT PREVIEW M 2 sec access selection ALTs GAUG DIVE S 2 sec DIVE MAIN M S A 2 sec 2 sec 2 sec 2 sec TMT Switch Compass Op Main Backlight Smartglo 60 sec...

Страница 34: ...34 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 GAUG OP MODE...

Страница 35: ...r P Temperature with icon and graphic F or C A 2 sec to access ALT 3 5 sec revert to Main if A is not pressed S 2 sec to activate Backlight GAUG SURF ALT 3 information includes Fig 83 Graphics GAUG an...

Страница 36: ...can then be accessed directly by pressing M 2 sec while viewing the Surface Main A 2 sec to step forward down through selections M 2 sec to step back up through selections S 2 sec when the pointer ic...

Страница 37: ...selections M 2 sec to step back through Menu selections S 2 sec when the pointer icon is next a selection will toggle it between solid and flashing Once 4 items are flashing another item cannot be to...

Страница 38: ...th with MAX and FT or M icons if Run Timer is on Main Time of Day hr min with graphic A or P if 12 Hour Temperature with icon and graphic F or C A 2 sec to revert to Main Revert to Main in 5 sec if A...

Страница 39: ...39 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 FREE DIVE OP MODE...

Страница 40: ...ace Main CD TIMER Countdown Timer Upon access from the Menu one of the following is displayed OFF solid and 0 00 if no time was previously set ON and the remaining CD Time min sec if running OFF flash...

Страница 41: ...102 Graphics SEt d and MENU with selections USE DEFAULT no change to the display ADD CD TIMER replaces EDT The default screen for dives displays Current Depth NDC EDT and Temperature Set D adds CDT e...

Страница 42: ...be restored after the audible FREE EDT Alarm When set ON the EDT alarm activates every 30 seconds during a dive The Audible will sound during which time the EDT Time digits will flash on the Main Fig...

Страница 43: ...siological 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 NORM GAUG or FREE prior to...

Страница 44: ...44 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 COMPASS MODE...

Страница 45: ...in back to Face Down if Failed or FAILED S 2 sec save display as OP Main REF Menu SET REVERSE A 2 sec back to OP Main S 2 sec Reverse Heading S 2 sec S 2 sec Lock Bearing Confirm Reverse S 2 sec displ...

Страница 46: ...n action 2 min to revert to Surface or Dive Main NORTH OP MAIN information includes Fig 116 Current Depth with FT or M icon Surface Interval during first 10 min on surface blank on surface 10 min Nort...

Страница 47: ...s to Calibrate the Compass before its first use after purchase before use in new global regions or if inac curacies are experienced Calibration will be required when the battery is changed Upon select...

Страница 48: ...Menu If DECLIN EAST or WEST is selected that graphic will flash and the numeric value with icon will flash in place of the graphic MENU Fig 126 A 2 sec to increase Set Points one at a time from 0 to 4...

Страница 49: ...When the procedure provided in this section is used to change the VT 4 0 Battery you must be sure that the case o ring is not pinched and that the VT 4 0 is water tight before conducting diving actvi...

Страница 50: ...e VT 4 0 and is prepared for Upload of settings or Download of data which is then initiated using the PC OceanLog program Prior to attempting to Download data from your VT 4 0 or Upload settings to it...

Страница 51: ...insured using a traceable method Non warranty service must be prepaid COD is not accepted Additional information is available on the Oceanic web site OceanicWorldwide com or on the local Oceanic web s...

Страница 52: ...c Dealer Use of any other O ring will void the warranty Lightly lubricate the new Cover O ring with silicone grease and place it on the inner rim of the Battery Cover Fig 137a and ensure that it is ev...

Страница 53: ...clockwise slowly by hand to ensure proper threading Apply a coin and tighten until secure The outer surface of the Battery Cover should be flush with the outer surface of the housing Fig 144 INSTALLIN...

Страница 54: ...t to the factory for evaluation prior to further use If the VT 4 0 Resets i e is On turns Off then turns On again for any reason during any dive Nitrogen O2 and ATR calcula tions are terminated upon t...

Страница 55: ...55 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 TECHNICAL DATA...

Страница 56: ...4 4 4 4 48 6 5 5 4 4 4 4 4 4 3 3 3 51 5 4 4 4 4 4 4 3 3 3 3 3 54 5 4 4 4 4 3 3 3 3 3 3 3 57 5 4 4 3 3 3 3 3 3 3 3 3 DSAT ALGORITHM NDLS minutes at ALTITUDE Imperial Altitude 0 3001 4001 5001 6001 7001...

Страница 57: ...dives conducted Dive Counter NORM GAUG displays Dives 1 to 24 FREE displays 1 to 99 0 if no dive made yet Resets to Dive 1 upon diving after 24 hours with no dives Dive Log Mode Stores 24 most recent...

Страница 58: ...portant reason for not pushing the no decompression and oxygen exposure limits and a critical reason to avoid entering decompression If you dive in situations where your trip would be ruined or your s...

Страница 59: ...e ___________________________________________________________________________________________________ Purchased from ___________________________________________________________________________________...

Страница 60: ...60 VT 4 0 OPERATING MANUAL 2002 Design 2011 Doc No 12 5213 r02 9 6 11 VT 4 0 DIVE COMPUTER OPERATING MANUAL...

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