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Oceanic VT 3 Operating Manual

Other manuals for VT 3: Operating Manual

Summary of VT 3

  • Page 1

    Vt 3 dive computer operating manual.

  • Page 3

    3 contents warranty, notices, decompression model .................................................................................................... 7 fcc id ...............................................................................................................................................

  • Page 4

    4 contents (continued) set fo2 gas 1 ..................................................................................................................................................... 31 set fo2 gas 2 ...................................................................................................

  • Page 5

    5 contents (continued) norm/gaug log mode ........................................................................................................................................ 67 norm/gaug history mode ..................................................................................................

  • Page 6

    6 contents (continued) gauge operating mode ....................................................................................................................................... 117 gaug surface displays .................................................................................................

  • Page 7

    7 limited two-year warranty for details, refer to the product warranty registration card provided. Register on-line at www.Oceanicworldwide.Com copyright notice this operating manual is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied, reproduced, transla...

  • Page 8

    8 warning: if your vt3 stops working for any reason while oper- ating as a dive computer, it is important that you have anticipated this possibility and are prepared for it. This is an important rea- son for not pushing the no decompression and oxygen exposure limits, and a critical reason to avoid ...

  • Page 9

    9 warning: prior to diving with the vt3, you must also read and understand the oceanic dive computer safety and reference manual, doc. No. 12-2262, which provides important warnings and safety recommendations as well as general product information. Introduction and general features and displays.

  • Page 10

    10 introduction welcome to oceanic and thank you for choosing the vt3 ! It is extremely important that you read this operating manual in sequence and understand it completely before attempting to use the vt3 as a dive computer. It is equally important that you read the oceanic dive computer safety a...

  • Page 11

    11 operating mode structure the m button is used to access 3 operating modes (fig. 1) that include norm (normal air/nitrox dive computer), gaug (digital gauge mode), and free (free dive mode). The screens of the main modes and sub modes will remain on display until a button is pressed to access anot...

  • Page 12

    12 gaug surface mode allows access to battery/transmitter status, fly, log, and history modes. It also displays tank pressure. Free mode allows access to sub modes by first accessing norm surface mode. It does not display tank pressure. Once a dive is made in gaug operating mode, the vt3 is locked i...

  • Page 13

    13 a red led warning light, located on the left side of the housing, is synchronized with the audible alarm. It will flash as the audible alarm sounds. It will turn off when the alarm is acknowledged or the situation is corrected. The audible and led will not be active if the alarm is set off (a gro...

  • Page 14

    14 a single short beep (which cannot be disabled) is emitted for the following -  upon completion of a hot swap battery change.  change from delayed to full violation 5 minutes after the dive. 3 short beeps (which cannot be disabled) are emitted for the following -  free dive elapsed dive time al...

  • Page 15

    15 note: extensive use of the backlight reduces estimated battery life. Also, the backlight does not operate during a low vt3 battery condition or when the vt3 is connected to a pc. Power supply the vt3 utilizes one 3 volt cr2450 lithium battery. The battery should operate normally for 1 year or 300...

  • Page 16

    16 transmitters use one 3 volt, cr2 lithium battery. A transmitter's battery should provide normal operation for 1 year or 300 dive hours. Transmitters check battery voltage when they are pressur- ized and will send a low battery signal to the receiver in the vt3 when the voltage drops below the war...

  • Page 17

    17 bar graphs the vt3 features a tissue loading bar graph (tlbg) (fig. 7a) that represents your relative no decompression or decompression status. As your depth and elapsed dive time increase, segments will add to the tlbg, and as you ascend to shallower depths, the segments of the tlbg will begin t...

  • Page 18

    18 the vt3 will store oxygen accumulation calculations for up to 10 dives conducted during a 24 hour period. If the maximum limit for norm dive oxygen loading has been exceeded for that day (24 hour period), all of the segments of the o2bg will be displayed flashing. Depth/time values will not appea...

  • Page 19

    19 pc interface interface with a pc is accomplished by connecting the vt3 to a pc usb port using the usb interface cable provided. The same cable is used for upload and download. The software program is on the oceanlog cd provided, together with a usb driver. The program's help section serves as the...

  • Page 20

    20 alpha / numeric displays tank pressure display (norm/gaug only) when the vt3's receiver is set on and active, tank pressure from an active transmitter that is properly linked will be dis- played on the norm or gaug main screens (fig. 9a). Values of pressure are displayed numerically from 000 psi ...

  • Page 21

    21 time, date, temperature displays time of day and norm/gaug mode displays are shown in hour:minute format (i.E., 1:16 represents 1 hour and 16 minutes, not 116 minutes). Free dive mode displays are shown in minute:second format. The colon that separates hours and minutes (minutes and seconds) blin...

  • Page 22

    22 note: each display represents unique pieces of informa- tion. 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. You must also understand the icons, symbols, and alpha/ numeric mess...

  • Page 23

    23 surface sequence and operating modes warning: prior to diving with the vt3, you must also read and understand the oceanic dive computer safety and reference manual, doc. No. 12-2262, which provides important warnings and safety recommendations as well as general product information..

  • Page 24

    24 operating modes as described previously, the vt3 features 3 operating modes -  norm - for normal air or nitrox dives  gaug - for dives with no nitrogen/oxygen calculations  free - for dives with no scuba reminder: once a dive is made in gaug mode, the vt3 is locked into that mode for 24 hours ...

  • Page 25

    25 the vt3 will enter post dive surface mode following a dive upon ascent to 4 ft (1.2 m). The surface interval time colon will flash during the first 10 minutes after a norm/gaug dive (fig. 16), or first 1 minute after a free dive. During the first 2 hours after a dive, the surf main screen for the...

  • Page 26

    26 norm surf main - button operations:  pressing the s button will activate the smartglo backlight.  pressing and releasing the a button repeatedly ( through the norm surface sequence - >> norm surf main > norm surf alt > plan > fly > sat > log > history.  depressing both the a and s buttons simu...

  • Page 27

    27  each screen will be displayed for 3 seconds. Vt3 battery status, then tmt 1 battery status and tank pressure, then tmt 2 battery status and tank pressure, then tmt 3 battery status and tank pressure, then revert to surf main.  transmitter battery status is not displayed for tmt 2 and 3 if tmt ...

  • Page 28

    28 set modes unless noted otherwise, features set apply to all operating modes (norm, gaug, and free. Free dive mode also has several settings that do not affect norm and gaug modes. Surf main > set f > set a > set u > set t > vt3 sn access and step through of the sequence is gained by repeated simu...

  • Page 29

    29 setting fo2 for norm nitrox dives: for each value of fo2, the maximum operating depth (mod) that can be achieved for the po2 alarm set point limit previously set, will be displayed. When the fo2 50% default is set on and fo2 gas 1 is set for a numerical value, 10 minutes on the surface after that...

  • Page 30

    30 maximum operating depths affected by the po2 limit set will not be displayed when fo2 for gas 1 is set to air. Internally, the vt3 keeps track of the oxygen loading so that if fo2 for gas 1 is subse- quently set for a numerical value, the oxygen loading for previous air dives will be ac- counted ...

  • Page 31

    31 set fo2 gas 1, information includes: > graphic gas1 > po2 alarm set point with graphic po2, if nitrox > symbol fo2 and fo2 set point value, flashing > tank 1 icon representing gas 1 > symbol nitrox (if set for a numerical value). > max depth allowed for the po2 alarm set (if 21 to 50%)  depressi...

  • Page 32

    32 set fo2 gas 2, information includes: > graphic gas2 > po2 alarm set point with graphic po2 > symbol fo2 and fo2 set point value, flashing > tank 2 icon representing gas 2 > symbol nitrox (if set for a numerical value). > max depth allowed for the po2 alarm set (if 21 to 100%)  depressing the s b...

  • Page 33

    33 set fo2 gas 3 information includes: > graphic gas3 > po2 alarm set point with graphic po2 > symbol fo2 and fo2 set point value, flashing > tank 3 icon representing gas 3 > symbol nitrox (if set for a numerical value). > max depth allowed for the po2 alarm set (if 21 to 100%)  depressing the s bu...

  • Page 34

    34 set fo2 50% default information includes (fig. 25): > graphics dflt and 50 > set point graphic off (or on), flashing. > symbols fo2 and nitrox.  pressing and releasing the s button ( toggle between off and on.  pressing and releasing the a button ( the setting and revert to the set f screen.  ...

  • Page 35

    35 > pressing and releasing the a button momentarily ( displayed will advance to set audible alarm with the set point flashing. Set audible alarm this option allows the audible alarms and the associated red warning led function to be disabled. Some cautionary situations will cause the audible alarm ...

  • Page 36

    36 set depth alarm information includes (fig. 28): > graphic dpth > symbols max and ft (or m) > set point graphic value, flashing.  pressing and releasing the s button momentarily ( seconds) will step through the set points from 30 to 330 ft (10 to 100 m) in 10 ft (1 m) increments at a rate of 1 se...

  • Page 37

    37 set edt (elapsed dive time) alarm information includes (fig. 29): > graphic edt > symbols dive and time. > set point value (hr:min), flashing.  pressing and releasing the s button momentarily ( seconds) will increase the set point from 0:10 to 3:00 (hours:minutes) in 5 minute (:05) increments. ...

  • Page 38

    38 set tlbg (tissue loading bar graph) alarm information includes (fig. 30): > graphic tlbg > tlbg set point (segments), flashing.  pressing and releasing the s button momentarily ( seconds) will decrease the set point from all 8 segments (deco) to 1 in decrements of 1 segment.  depressing the s b...

  • Page 39

    39 set dtr (dive time remaining) alarm information includes (fig. 31): > graphic dtr > symbols air, time, ndc, and o2. > set point value, flashing.  pressing and releasing the s button momentarily ( seconds) will increase the set point from 0:00 to 0:20 (:minutes) in 1 minute (0:01) increments.  d...

  • Page 40

    40 set turn pressure alarm (for transmitter 1 only) information includes (fig. 32): > graphic turn > set point off or a numeric value, flashing. > symbol psi (or m)  pressing and releasing the s button momentarily ( seconds) will step through the set points from off to 1000 to 3000 psi (70 to 205 b...

  • Page 41

    41 set end pressure alarm information includes (fig. 33): > graphic end > set point numeric value, flashing. > symbol psi (or m)  pressing and releasing the s button momentarily ( seconds) will increase the set point from 300 to 1500 psi (20 to 105 bar) in 100 psi (5 bar) increments.  depressing t...

  • Page 42

    42 set po2 alarm information includes (fig. 34): > graphics po2 and ata > set point value, flashing. > symbol max  pressing and releasing the s button momentarily ( seconds) will increase the set point from 1.20 (ata) to 1.60 (ata) in .10 (ata) increments.  depressing the s button will scroll thro...

  • Page 43

    43 set u group (utilities) set u sequence: set u > wet activation > units > safety stop > conservative factor > backlight duration > sampling rate > tmt 1 > tmt 2-3 use > tmt 2 (or bud 1) > tmt 3 (or bud 2). > the set u group can also be set/changed using the pc settings upload program. > set u sett...

  • Page 44

    44 set wet activation information includes (fig. 36): > graphic wet > set point graphic on (or off) flashing.  pressing and releasing the s button will toggle between on and off.  pressing and releasing the a button momentarily ( seconds) will save the setting and/or advance to the set units scree...

  • Page 45

    45 set units information includes (fig. 37): > graphic unit > set point symbols/graphics psi, f, and ft (or bar, c, and m), flashing.  pressing and releasing the s button will toggle between imperial (f, ft, psi) and metric (c, m, bar).  pressing and releasing the a button momentarily ( seconds) w...

  • Page 46

    46 set norm safety stop information includes (fig. 38): > graphic safe > symbols stop and time. > safety stop time set point, flashing. > safety stop depth set point and symbol ft (or m).  pressing and releasing the s button momentarily ( the stop time set points of off, 3:00, and 5:00 (minutes:sec...

  • Page 47

    47 set conservative factor information includes (fig. 39): > graphic cons > set point on (or off), flashing. > symbols time and ndc.  pressing and releasing the s button ( toggle between on and off.  pressing and releasing the a button momentarily ( seconds) will save the setting and/or advance to...

  • Page 48

    48 set backlight duration information includes (fig. 40): > graphic glo. > symbol time. > set point, flashing.  pressing and releasing the s button momentarily ( seconds each) will step through the set points of :00, :05, and :10 (seconds).  pressing and releasing the a button momentarily ( second...

  • Page 49

    49 set sampling rate information includes (fig. 41): > graphic samp > symbol time. > set point, flashing.  pressing and releasing the s button momentarily ( seconds) will step through the set points of :02, :15, :30, :60 (seconds).  depressing the s button will scroll through the set points at a r...

  • Page 50

    50 set tmt 1 information includes (fig. 42): > graphics tmt1 and on (or off) flashing. > set point (transmitter's serial number (link code).  pressing and releasing the s button momentarily ( seconds) will toggle between on and off.  pressing and releasing the a button momentarily ( seconds) will ...

  • Page 51

    51  pressing and releasing the a button ( code and/or advance to the third digit which will be flashing.  pressing and releasing the s button repeatedly ( third digit from 0 to 9 in increments of 1.  depressing the s button will scroll through the set points at a rate of 4 per second.  pressing ...

  • Page 52

    52 set tmt 2-3 use information includes (fig. 43): > graphics tmt and 2-3 use. > set point graphic self (or bud) flashing.  pressing and releasing the s button momentarily ( seconds) will toggle between self and bud.  pressing and releasing the a button momentarily ( seconds) will accept the setti...

  • Page 53

    53 set tmt 2 (or bud 1) information includes (fig. 44): > graphics tmt2 (or bud1) and on (or off) flashing. > set point (transmitter's serial number (link code).  pressing and releasing the s button momentarily ( seconds) will toggle between on and off.  pressing and releasing the a button momenta...

  • Page 54

    54  pressing and releasing the s button repeatedly ( third digit from 0 to 9 in increments of 1.  depressing the s button will scroll through the set points at a rate of 4 per second.  pressing and releasing the a button ( code and/or advance to the fourth digit which will be flashing.  pressing...

  • Page 55

    55 set tmt 3 (or bud 2) information includes (fig. 45): > graphics tmt3 (or bud2), and on (or off) flashing. > set point (transmitter's serial number (link code)).  pressing and releasing the s button momentarily ( seconds) will toggle between on and off.  pressing and releasing the a button momen...

  • Page 56

    56  pressing and releasing the s button repeatedly ( third digit from 0 to 9 in increments of 1.  depressing the s button will scroll through the set points at a rate of 4 per second.  pressing and releasing the a button ( code and/or advance to the fourth digit which will be flashing.  pressing...

  • Page 57

    57 set t group (time/date) set t sequence: set t > hour format > hour > minute > year > month > day > the set t group can also be set/changed using the pc settings upload program. > set t settings remain at the values set until changed. > free mode utilizes these settings. > day of the week is set a...

  • Page 58

    58 set hour format information includes (fig. 47): > graphic hour > set point 12 (or 24), flashing. > symbol time.  pressing and releasing the s button momentarily ( seconds) will toggle between 12 and 24.  pressing the a button momentarily ( the hour format set point and access the set time scree...

  • Page 59

    59  depressing the s button while the minute set point is flashing will scroll through the set points in 1 minute increments at a rate of 4 per second from :00 to :59.  pressing and releasing the a button momentarily ( set point and/or advance to the set date screen. Set date (year, month, and day...

  • Page 60

    60 serial number (vt3)  depressing the a and s buttons simultaneously for 10 seconds while viewing the norm or gaug surf main screen will access the vt3's serial number screen displaying (fig. 50): > graphic sn > factory programmed serial number of the vt3. > firmware revision number (e.G., graphic...

  • Page 61

    61 norm surf alt, information includes (fig. 51): > day of the week graphic (sat, sun, mon, tue, wed, thu, fri). > temperature with degree icon and graphic f (or c) > time of day (hour:minute).  pressing and releasing the a button momentarily ( seconds) will access the norm plan lead-in screen.  p...

  • Page 62

    62 note: no decompression dive times in norm plan mode are based on the fo2 setting for gas 1. The fo2 settings for gas2 and gas3 are not utilized for plan calculations.  pressing and releasing the a button momentarily ( seconds) 1 time while the norm surf main screen is displayed will access the p...

  • Page 63

    63 if fo2 for gas1 is set for a numerical value (21 to 50%), the nitrox graphic and maxi- mum operating depth defined by the po2 alarm set point will be displayed. If the limiting time factor is oxygen controlled, the symbols time and o2 will be dis- played. If the limiting time factor is nitrogen c...

  • Page 64

    64 pdps information includes (fig. 53a/b): > plan depth values and symbol f (feet) or m (meters). > po2 alarm set point and graphic po2, if set for nitrox. > symbols time and ndc (or o2 if in control). > dive time (hr:min) allowed for the fo2 set for gas 1. > tank 1 icon representing gas 1. > symbol...

  • Page 65

    65 during the first 2 hours after a dive -  pressing and releasing the a button 3 times momentarily ( 2 seconds each time) while the norm surf main screen is displayed will access fly mode (norm surf main > alt > plan > fly, or -  pressing and releasing the a button 2 times momentarily ( 2 seconds...

  • Page 66

    66 sat mode the time to desaturate counter provides calculated time for tissue desatuation at sea level taking into consideration the conservation factor setting. It begins counting down 10 minutes after surfacing from a dive, counting down from 23:50 max to 0:00 (hr:min). When the countdown reaches...

  • Page 67

    67 time to desat information includes (fig. 55): > graphic sat and symbol time. > countdown time (hr:min). > battery icon (if an vt3 low battery warning condition exists), flashing if too low  pressing and releasing the a button momentarily ( seconds) will advance to log mode.  depressing the m bu...

  • Page 68

    68 dives will be numbered 1 to 24 starting at #1 each time a new series of dives begins. After it shuts off 24 hours after a dive, the first dive of the next new series will be #1. Accessing log mode:  during the first 10 minutes after a dive, pressing and releasing the a button momentarily ( displ...

  • Page 69

    69  pressing and releasing the s button momentarily ( preview screen will display that dive’s log data 1 screen (nitrogen data).  if that was a nitrox dive, pressing and releasing the s button again will display that dive’s log data 2 screen (oxygen data). If in gauge mode (violated or user select...

  • Page 70

    70 fig. 57 - log data 1 log data 1 information includes (fig. 57): > alpha graphic no-d, deco, gaug, or viol. > tlbg with the maximum accumulation segment flashing, others fixed up to end-of-dive accumulation. All segments flashing for delayed and full violation. > vari - showing the maximum ascent ...

  • Page 71

    71 fig. 58 - log data 2 log data 2 (if a nitrox dive) information includes (fig. 58): > graphic o2. > o2 bar graph segments representing oxygen accumulated at the end of the dive. > value of max po2 achieved (ata) and graphic po2. > gas 1 fo2 set point for that dive and symbol fo2. > tank 1 icon rep...

  • Page 72

    72 norm/gaug history mode history mode displays accumulative norm and gaug dive information. Battery removal will not affect the history data stored for viewing. 10 minutes after a dive -  pressing and releasing the a button 6 times momentarily ( while the norm surf main screen is displayed will ac...

  • Page 73

    73 fig. 60 - history 2 history 2 screen information includes (fig. 60): > graphic sea (or el 2 through el 13), highest altitude at which a norm or gaug dive was conducted. > temperature, lowest recorded of all norm and gaug dives. > maximum depth achieved during all norm and gaug dives with symbols ...

  • Page 74

    74 overview of displayed symbols and icons symbols meaning bar (or) psi selected tank's pressure units stop time (or) dive time ceiling stop time or elapsed dive time (hr:min if norm or gaug; min:sec if free) or dive # air time (or) - air time remaining (hr:min) time ndc (or) - no decompression dive...

  • Page 75

    75 overview of dive mode information warning: prior to diving with the vt3, you must also read and understand the oceanic dive computer safety and reference manual, doc. No. 12-2262, which provides important warnings and safety recommendations as well as general product information..

  • Page 76

    76 transmitter signal reception guide best reception area poor reception area poor reception area poor reception area poor reception area poor reception distance (greater than 6 feet/2 meters).

  • Page 77

    77 positioning of the vt3 the transmitters (tmts) emit low frequency signals that radiate outward in semicircular patterns that are parallel to the length dimension of the tmt. A coiled antenna inside the vt3 receives the signals when it is positioned within a zone parallel to or at a 45 degree angl...

  • Page 78

    78 an interruption of the tmt link may also occur while the vt3 is in an area within 3 to 4 feet (1 meter) of a running dive propul- sion vehicle. The link will be restored within 4 seconds after the vehicle is shut off or the vt3 is moved out of that area. When using a strobe, a temporary interrupt...

  • Page 79

    79 no decompression dive time remaining (ndc) no decompression dive time remaining is the maximum amount of time that you can stay at your present depth before entering a decompression situation. It is calculated based on the amount of nitrogen absorbed by hypothetical tissue compart- ments. The rat...

  • Page 80

    80 oxygen accumulation time remaining (otr) when the vt3 is set for nitrox operation, oxygen accumulation (saturation or exposure) during a dive, or 24 hour period, appears graphically as the o2 bar graph (o2bg) (fig. 64a). As time remaining before reaching the oxygen exposure limit decreases, segme...

  • Page 81

    81 air consumption and depth are continuously monitored and air time remaining reflects any change in circumstances. For example, when a buddy starts breathing from your octopus or you suddenly find yourself swimming against a strong current and begin breathing more rapidly, the vt3 will recognize t...

  • Page 82

    82 you should immediately initiate a controlled ascent while monitoring your tank pressure. However, there is no reason to panic, the vt3 has allowed for the air necessary for a safe ascent including the no deco safety stop, if set on, and any decompression stops required. Example:  you set the end...

  • Page 83

    83 control of displays during dive modes, there is a main (default) display of important information relevant to the specific mode that the vt3 is operating in (no deco, deco, gaug, free, etc.). Alternate (alt) displays can be accessed by pressing and releasing the a button to view additional inform...

  • Page 84

    84 wet contacts the wet contact dive mode activation feature is active any time wet activation is set on. The vt3 is configured with contacts that will automatically activate dive mode when the space between the contacts is bridged by a conductive material (immersed in water) and it senses a depth o...

  • Page 85

    85 norm type dive modes warning: prior to diving with the vt3, you must also read and understand the oceanic dive computer safety and reference manual, doc. No. 12-2262, which provides important warnings and safety recommendations as well as general product information..

  • Page 86

    86 norm no decompression dive mode when the wet activation feature is set on, the vt3 will enter the dive mode any time you descend to 5 ft (1.5 m). When the wet activation feature is set off, the vt3 will not enter dive mode upon descent unless it is first activated by push button and operating in ...

  • Page 87

    87  while the norm dive main screen is displayed, press/ release the a button (  while the norm dive alt 1 screen is displayed, press/ release the a button (  while the norm dive alt 2 screen is displayed, press/ release the a button ( hint: alt 1 is always temperature, time alt 2 displays edt, m...

  • Page 88

    88 norm dive no deco alt 2 display, information provided includes (fig. 71) - > tlbg representing nitrogen loading > vari while ascending > o2bg, if any during nitrox dives > graphic tmt1 (or 2 or 3), and > tank pressure with the psi (or bar) icon, if a tmt is active and linked, flashing after 1 min...

  • Page 89

    89 norm dive no deco alt 3 display (if set for nitrox), information includes (fig. 72) - > tlbg representing nitrogen loading > vari while ascending > o2bg > graphic gas1 (or 2 or 3) representing the gas selected > level of po2 (ata) with graphic po2 > fo2 setting and symbol fo2 > tank icon represen...

  • Page 90

    90 the safety stop will be displayed until the countdown times out, or you descend below 30 ft (10 m), or you surface. There is no penalty if you surface prior to completing the safety stop. If the safety stop was set to off, the screen will not appear during the ascent. Norm dive no deco safety sto...

  • Page 91

    91 decompression dive mode the vt3 is designed to help you by providing a representation of how close you are to entering decompression. Decompression dive mode activates when theoretical no decompression time and depth limits are exceeded. Upon entry into decompression mode, the audible alarm will ...

  • Page 92

    92 to fulfill your decompression obligation, you should make a safe controlled ascent to a depth slightly deeper than (fig. 75a), or equal to, the required ceiling stop depth indi- cated (fig. 75b) and decompress for the stop time indicated (fig. 75c). The amount of decompression credit time that yo...

  • Page 93

    93  press/release the a button ( alt 1, then alt 2 and alt 3. Deco main > alt 1 > alt 2 > alt 3  depress the m button for 2 seconds to access the gas switch or buddy pressure check menu. Total ascent time (tat) total ascent time includes stop times required at all required decompression ceilings (...

  • Page 94

    94 deco stop alt 2 display, information includes (fig. 77) - > graphic tmt1 (or 2 or 3) and tank pressure with the psi (or bar) icon, if a tmt is active and linked > tlbg, all segments > o2bg, if any during nitrox dives > edt (hr:min) with symbols dive and time > atr (hr:min) with symbols air and ti...

  • Page 95

    95 violation modes while in violation modes, the alternate displays previously described can be accessed using the a button, the backlight can be activated using the s button, and alarms can be acknowledged and silenced with the a button.  alternate displays will be similar to the deco screens and ...

  • Page 96

    96 note: upon entry into the following 3 delayed violation modes, the red led flash and the au- dible alarm will sound, even if set off. When these events occur, the alarm cannot be ac- knowledged (silenced) by pressing the a button. Norm delayed violation #1 (fig. 80) if you remain above the requir...

  • Page 97

    97 when delayed violation #2 occurs, you must make a controlled ascent to just deeper than, and stay as close as possible to, 60 ft (18 m) without causing the tlbg to flash. When the re- quired stop depth indicates 50 ft/15 m, etc., you can ascend to those stop depths and continue decompressing. Nor...

  • Page 98

    98 immediate violation and viola gauge mode if a decompression ceiling stop depth much greater than 60 ft (18 m) is required, an immediate violation mode will be en- tered. This situation would be preceded by entering delayed violation mode #2. The vt3 would then operate in violation gauge mode duri...

  • Page 99

    99 the vt3 will also enter an immediate violation mode (violation gauge mode) 5 minutes after surfacing from a dive in which a delayed violation occurred. Violation gauge mode on the surface does not allow access to the set f, plan, fly, and sat features/screens. The countdown timer that appears whe...

  • Page 100

    100 norm high po2 when partial pressure of oxygen (po2) becomes equal to, or greater than, 0.20 ata less than the po2 alarm set point (a set a group setting); the red led warning light will flash, the au- dible alarm will sound, and the message high > po2 will scroll until the alarm is acknowledged/...

  • Page 101

    101 high oxygen accumulation the o2 bar graph (o2bg) displays either oxygen accumulated during that nitrox dive, or during the repetitive nitrox dives you conduct during that 24 hour period, whichever of the two is greater at that time. The o2bg allows you to monitor how close you are coming to the ...

  • Page 102

    102 summary of norm/gaug warning and alarm messages message meaning deco > stop > xxf (m) entry into decompression mode. Down > to > xxf (m) above required decompression stop depth. Deco > stop > 60f (18m) deco stop greater than 60 ft (18 m) required. High > po2 high po2 while in deco mode. Up > hig...

  • Page 103

    103 switching gas mixes and buddy pressure check warning: prior to diving with the vt3, you must also read and understand the oceanic dive computer safety and reference manual, doc. No. 12-2262, which provides important warnings and safety recommendations as well as general product information..

  • Page 104

    104 switching gas mixes (norm only) during norm dives, the vt3 can be manually switched from gas 1 to gas 2 to gas 3, changing fo2 displays and calculations from the fo2 value set for gas 1 to the fo2 value set for gas 2 to the fo2 value set for gas 3, and if tmts are used, changing pressure related...

  • Page 105

    105 due to the possibility that sufficient air may not be available in the switch from tank to complete the dive, the switch to the prohibitive mix can still be made. If the switch is made to the prohibitive mix while in norm no deco dive mode, the high po2 alarm will activate. If the switch is made...

  • Page 106

    106 gas 1 switch preview, information includes (fig. 89) - > graphic gas1 > tlbg, representing nitrogen loading > vari, if ascending > o2bg, if any > fo2 set point for gas 1 and the symbol fo2 > tank icon, representing gas 1 > symbol nitrox > current depth and symbol ft (or m)  press/release the m ...

  • Page 107

    107 to switch fo2 from gas 1 to gas 2  depressing the m button for 2 seconds while viewing the gas 2 switch preview display will switch the vt3's fo2 from gas 1 to gas 2 and the vt3's receiver from tmt 1 to tmt 2 (if active).  after the switch is made, the norm dive main display will represent gas...

  • Page 108

    108 gas 3 switch preview, information includes (fig. 92) - > graphic gas3 > tlbg, representing nitrogen loading > vari, if ascending > o2bg, if any > fo2 set point for gas 3 and the symbol fo2 > tank icon representing gas 3 > symbol nitrox > current depth and symbol ft (or m)  press/release the m b...

  • Page 109

    109 buddy pressure check (norm only) during norm dives, the vt3 can be used to check (display) tank pressure of 1 or 2 buddies whose tmt link codes (serial numbers) have been entered as tmt 2 and tmt 3 in the vt3's set u menu. Note: use of the buddy pressure check feature cannot be performed when tm...

  • Page 110

    110  pressing and releasing the m button momentarily ( seconds) while the tmt 2-3 use (lead-in) screen is displayed (with the setting bud) will start a search for bud 1 (tmt 2)) displaying the graphics bud and search (fig. 94) for a maximum of 5 seconds. Note: no further button action is required. ...

  • Page 111

    111 note: the graphic notavail (not available) (fig. 96) indicates that the buddy is out of range or the vt3's tmt 2 (or 3) setting does not match the serial number of that buddy's tmt. Buddy pressure check on surface a buddy pressure check can be accomplished when on the surface by accessing the tm...

  • Page 112

    112 m gas 1 preview m gas 2 preview m 2 sec gas 3 preview m m switches from gas 1/tmt 1 to gas 2/tmt 2 (after 3 sec) switches from gas 2/tmt 2 to gas 3/tmt 3 (after 3 sec) switches from gas 3/tmt 3 to gas 1/tmt 1 (after 3 sec) back to norm dive main bud1 pressure bud2 pressure 5 sec tmt 2-3 use set ...

  • Page 113

    113 norm post dive modes warning: prior to diving with the vt3, you must also read and understand the oceanic dive computer safety and reference manual, doc. No. 12-2262, which provides important warnings and safety recommendations as well as general product information..

  • Page 114

    114 post dive surface mode when you ascend to 2 ft (0.6 m), the vt3 will enter surface mode and begin counting your surface interval. Transition period if you descend during the first 10 minutes after surfacing (referred to as the transition period), time underwater will be considered a continuation...

  • Page 115

    115 surf alt display during the transition period (fig. 98) -  to access surf alt, press and release the a button ( seconds) while viewing the norm surf main display.  press the s button to activate the smartglo backlight.  press and release the a button ( the norm surf alt display to access the ...

  • Page 116

    116 once 10 minutes have elapsed, the surface interval time display colon will stop flashing indicating that the dive and transition period are completed, and a subsequent descent will be considered a new dive. After the transition period once the transition period has ended, you will then have full...

  • Page 117

    117 gauge operating mode warning: prior to diving with the vt3, you must also read and understand the oceanic dive computer safety and reference manual, doc. No. 12-2262, which provides important warnings and safety recommendations as well as general product information..

  • Page 118

    118 gauge mode when gauge mode (gaug) is selected as the operating mode, the vt3 will operate as a digital depth gauge/timer without performing nitrogen and oxygen calculations.  to access the gaug surf main screen while norm surf main is displayed, press the m button for 2 seconds.  to select gau...

  • Page 119

    119 fig. 101 - gaug dive main  press/hold the a and s buttons simultaneously for 2 seconds to access the set menu (f > a > u > t).  press/hold the s button for 2 seconds to access battery/ tmt status screens. Upon descending to 5 ft (1.5 m), the vt3 will enter gaug dive mode. Note: once a dive is ...

  • Page 120

    120 fig. 103 - gaug dive alt 2 gaug dive alt 1 display, information provided includes fig. 102) - > day of the week graphic (mon, tue, etc.) > temperature with degrees icon and graphic f (or c) > time of day (hr:min).  press/release the a button ( alt 2.  the display will revert to the gaug dive m...

  • Page 121

    121 free dive operating mode warning: prior to diving with the vt3, you must also read and understand the oceanic dive computer safety and reference manual, doc. No. 12-2262, which provides important warnings and safety recommendations as well as general product information. (refer to additional inf...

  • Page 122

    122 free dive mode when free (free dive mode) is selected as the operating mode, the vt3 will operate as a digital depth gauge with select features. Nitrogen loading is calculated based upon a default fo2 of air and the amount remain- ing during 24 hours is carried over between free and norm operati...

  • Page 123

    123  press the s button to activate the smartglo backlight.  depress the m button for 2 seconds to access norm surf main.  press and release the a button momentarily ( access free surf alt 1.  press and release the a button momentarily ( while viewing alt 1 to access free surf alt 2.  depress t...

  • Page 124

    124 free surf alt 2 display, information includes (fig. 106) - > graphic free > battery icon if an vt3 low battery warning condition exists, flashing if too low. > graphic last with symbols dive time and the elapsed dive time (min:sec) of the free dive previously made while still in free mode. Reset...

  • Page 125

    125 > if the cd timer is off, the cd time (min:sec) previously set will be displayed with the colon solid.  pressing and releasing the s button momentarily ( on and off. > if a time has been set, a toggle from off to on will start the cd timer indicated by the colon flashing.  press the s button t...

  • Page 126

    126 set free cdt status display (surface only), information includes (fig. 108) - > graphics timr and set, solid. > time symbol and timer setting (min:sec), colon solid, minute set point flashing.  depressing and holding the s button while the minute set point is flashing will scroll through the se...

  • Page 127

    127 free dive edt (elapsed dive time) alarm the free edt alarm is factory set for 30 seconds. When set on, the alarm will sound 3 short beeps and the message time will be displayed momentarily every 30 seconds while the vt3 is operating underwater in free dive mode.  depressing the a and s buttons ...

  • Page 128

    128 free dive depth alarms (fda) the vt3 features 3 free dive depth alarms that can be set at progressively deeper depths and turned off/on. > if alarm 1 is set off, then alarms 2 and 3 will be disabled. > if alarm 2 is set off, alarm 3 will be disabled. When each of the depths are reached during a ...

  • Page 129

    129 set free depth alarm 1 (fda 1) display, information includes (fig. 111) - > graphic fda1. > set point on or off, flashing. > depth set point graphic value, flashing if on is displayed. > symbols max and ft (or m).  pressing and releasing the s button momentarily ( seconds) will toggle the set p...

  • Page 130

    130 set free depth alarm 2 (fda 2) display, information includes (fig. 112) - > graphic fda2. > set point on or off, flashing. > depth set point graphic value, flashing if on is displayed. > symbols max and ft (or m).  pressing and releasing the s button momentarily ( seconds) will toggle the set p...

  • Page 131

    131 set free depth alarm 3 (fda3) display, information includes (fig. 113) - > graphic fda3. > set point on or off, flashing. > depth set point graphic value, flashing if on is displayed. > symbols max and ft (or m).  pressing and releasing the s button momentarily ( seconds) will toggle the set po...

  • Page 132

    132 free dive main display (default), information includes (fig. 114) - > graphic free > tlbg, if any nitrogen remaining from previous norm or free dives conducted within the previous 24 hours. > temperature with degrees symbol and graphic f (or c) > elapsed dive time (hr:min) with symbols dive and ...

  • Page 133

    133 free dive cdt status display, information includes (fig. 116) - > graphics timr and off (or on), flashing > time symbol and remaining countdown time (min:sec) with the colon flashing if on and a cd is in progress, 0:00 with the colon flashing if on and no time is remaining. If off, the cd time p...

  • Page 134

    134 free dive alarms are separate and unaffected by norm/ gaug mode alarm settings, and the alarms that occur in those modes are separate and unaffected by free dive alarm set- tings. Free cdt (count down timer) alarm when the free cdt decreases to 0:00 (min:sec), 3 short beeps will sound 3 times, t...

  • Page 135

    135 free dive edt (elapsed dive time) alarm when the free edt alarm is set on prior to commencing a free dive, 3 short beeps will sound, the red led will flash, and the message time will appear on the display momentarily (fig. 120), then revert to the message free. This free dive alarm is factory se...

  • Page 136

    136 entry into deco during a free dive in the event that nitrogen loading increases to the warning level indicated by all segments of the tlbg and o2bg and up arrow flashing, 3 short beeps will sound 3 times, the red led will flash, and the message up > viol will appear on the display (fig. 122). Af...

  • Page 137

    137 warning: prior to diving with the vt3, you must also read and understand the oceanic dive computer safety and reference manual, doc. No. 12-2262, which provides important warnings and safety recommendations as well as general product information. Reference.

  • Page 138

    138 uploading settings and downloading data the vt3 is configured with a data port located on the back of the left side that enables it to be connected to a pc through a usb port using the special interface cable supplied. A usb driver is provided on the oceanlog cd as part of the interface system. ...

  • Page 139

    139 pc compatibility requirements:  ibm ® , or compatible, personal computer with usb port  intel ® pentium 200 mhz or better microprocessor  microsoft ® windows ® 98 second edition, me, nt, 2000, or xp  super vga card or compatible video graphics adaptor (256 color or greater) with a minimum 80...

  • Page 140

    140 care and cleaning protect your vt3 from shock, excessive temperatures, exposure to chemicals, and tampering. Protect the lens against scratches with a instrument lens protector. Small scratches will naturally disappear underwater.  soak and rinse the vt3 in fresh water at the end of each day of...

  • Page 141

    141 oceanic recommends that you continue to have an inspection performed every year to ensure it is working properly. The costs of annual inspections are not covered under the terms of the 2 year limited warranty. To obtain service: take your vt3 system to an authorized oceanic dealer or send it to ...

  • Page 142

    142 battery replacement note: the procedures that follow must be closely adhered to. Dam- age due to improper battery replacement is not covered by the vt3's 2 year warranty. When replacing the battery in the vt3, it is recommended that you also replace the battery(s) in the transmitter(s), and vice...

  • Page 143

    143 vt3 battery hatch removal  locate the battery compartment on the back of the module.  while applying steady inward pressure on the clear battery hatch, rotate the hatch ring clockwise 10 degrees by pressing on the upper/right arm of the ring with a small blade screwdriver (fig. 125). Note: if ...

  • Page 144

    144 transmitter battery removal locate the battery hatch on the end of the housing:  apply a coin to the recessed slot of the hatch and turn it counter clockwise out of the housing (fig. 128).  remove the battery from the battery compartment and discard according to local regulations governing dis...

  • Page 145

    145 inspection (continued) -  closely examine the inside of the battery compartment(s) for any signs of corrosion indicating entrance of moisture into the unit.  if corrosion is found, return the vt3 system to an authorized oceanic dealer, and do not attempt to use it until it has received factory...

  • Page 146

    146 vt3 battery installation (continued) -  carefully place the clear battery hatch (with o-ring) into position on the rim of the battery compartment, then press it evenly and completely down into place with your same thumb.  maintain the battery hatch securely in place and, using your other hand,...

  • Page 147

    147 transmitter battery installation (continued) -  place a new 3 volt, cr2, lithium battery (duracell model dl- cr2 or equivalent) positive (+) side down into the battery compartment with the negative end facing up/out (fig. 132).  ensure that the battery is properly oriented and the hatch o-ring...

  • Page 148

    148 installing a transmitter on a regulator to install the transmitter on the regulator first stage:  remove the existing pressure gauge and high pressure hose, or the high pressure port plug from the port marked hp using the proper size hex key.  lightly lubricate the o-ring and threads of the tr...

  • Page 149

    149 altitude sensing and adjustment prior to the first dive of a series of repetitive dives, altitude (i.E., ambient pressure) is measured upon activation and every 15 minutes until a dive is made. > measurements are taken every 15 minutes during the 24 hour period after surfacing. > measurements ar...

  • Page 150

    150 when the conservative factor feature is set on, allowable dive times are calculated based upon the next higher 3,000 foot (915 meter) altitude. All adjustments for altitudes greater than 11,000 feet (3,355 meters) are then made to allowable dive times for 14,000 feet (4,270 meters). If the conse...

  • Page 151

    151 metric no decompression limits (hours:minutes) at altitude altitude 0` 611` 916` 1221` 1526` 1831` 2136` 2441` 2746` 3051` 3356` 3661` 3966` (meters) to to to to to to to to to to to to to 610` 915` 1220` 1525` 1830` 2135` 2440` 2745` 3050` 3355` 3660` 3965` 4270` depth (meters) 9 4:43 3:51 3:37...

  • Page 152

    152 can be used as • dive computer (air or nitrox) • digital depth gauge/timer • free dive activity • with or without up to 3 transmitters no decompression model basis: • modified haldanean algorithm • 12 tissue compartments data base: • diving science and technology (dsat) - rogers/ powell dive com...

  • Page 153

    153 norm/gaug set modes • set f group (fo2 items): > factory settings: • fo2 gas1 (air, 21 to 50%) > air • fo2 gas2 (air, 21 to 100%) > air • fo2 gas3 (air, 21 to 100%) > air • fo2 default (on/off) > on • set a group (alarms): • audible alarm / led warning (on/off) > on • max depth alarm (30 to 330 ...

  • Page 154

    154 norm/gaug set modes (continued) • set t group (time/date): factory settings: • hour format (12/24) > 12 • time (hour:min) > actual at factory • date (year/month/day) > 0101 2006 • vt3 serial number • factory set > actual norm no decompression dive displays: • main (default) - tlbg, o2bg, vari, a...

  • Page 155

    155 specifications (continued) gaug dive displays: • main (default) - graphic gaug, vari, pressure, elapsed dive time, current depth • alternate 1 - day of week, temperature, time of day (hr:min) • alternate 2 - tmt #, vari, pressure, elapsed dive time, air time remaining, max depth free dive displa...

  • Page 156

    156 numeric displays (cont'd): range: resolution: • time to desaturate 23:50 max to 0:00 hr:min* 1 minute (* starting 10 min. After the dive) • temperature 0 to 140°f (-9 to 60°c) 1° • tank pressure 0 to 5000 psi (345 bar) 5 psi (1 bar) • time of day 0:00:00 to 23:59:59 hr:min 1 minute • free countd...

  • Page 157

    157 operational performance function: accuracy: • depth ±1% of full scale • timers 1 second per day dive counter: • norm/gaug displays dives #1 to 24, free displays dives #1 to 99 0 if no dive made yet • resets to dive #1, upon diving (after 24 hours with no dives) norm/gaug dive log mode: • stores ...

  • Page 158

    158 operational performance (continued) - battery indicator: • warning - icon on solid at 2.75 volts, vt3 battery change recommended • alarm - icon on flashing at 2.50 volts, change the vt3 battery activation: • manual - push button (recommended), required if wet activation is set off. • automatic -...

  • Page 159

    159 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, nitroge...

  • Page 160

    160 inspection / service record vt3 serial number: _________________________________ transmitter #1 serial number: _________________________________ transmitter #2 serial number: _________________________________ transmitter #3 serial number: _________________________________ date of purchase: _____...

  • Page 161: Vt3 Full Lcd

    161 vt3 full lcd components: a. Mode/mix (m) button b. Advance (a) button c. Select (s) button d. Led warning light e. Tlbg f. Vari g. O2bg h. Symbol - ft or m (depth) i. Symbol - max j. Symbol - nitrox k. Icons - tank (gas) 1, 2, 3 l. Symbol - fo2 m. Air time remaining n. Symbols - air time time nd...

  • Page 162

    162 oceanic world wide oceanic usa 2002 davis street san leandro, ca 94577 tel: 510/562-0500 fax: 510/569-5404 web site: http://www.Oceanicworldwide.Com service@oceanicusa.Com oceanic central/north europe wendelstein, germany tel: 09129-9099780 fax: 09129-9099789 e-mail: office@oceanic.De oceanic so...

  • Page 164

    Oceanic® usa 2002 davis street san leandro, ca 94577 tel: 510-562-0500 fax: 510-569-5404 http://www.Oceanicworldwide.Com ©2002 design, 2006 doc. No. 12-2705-r02 (10/2/06).