Download
Share
Print this page
Oceanic VT Pro Operating Manual
  1. Manuals
  2. Brands
  3. Oceanic Manuals
  4. Diving Instrument
  5. VT Pro
  6. Operating manual
Oceanic VT Pro Operating Manual

Oceanic VT Pro Operating Manual

Dive computer
Hide thumbs

Advertisement

Quick Links

Download this manual
OCEANIC
®
VT Pro
dive computer
operating manual

Advertisement

loading

Related Manuals for Oceanic VT Pro

Summary of Contents for Oceanic VT Pro

  • Page 1 OCEANIC ® VT Pro dive computer operating manual...
  • Page 7 The programs within the VT Pro simulate the absorption of nitrogen 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 VT Pro dive computer model is based upon the latest research and experiments in decompression theory.
  • Page 8 • Connect the equipment to an outlet on a circuit different from that to which the receiver is con- nected. • Consult the dealer or an experienced radio/TV technician. Warning: Changes or modifications to this unit not expressly ap- proved by Oceanic/2002 Design could void the user's authority to operate the equipment.
  • Page 10 VT Pro. It is equally important that you read the Oceanic Dive Computer Safety and Reference Manual (Doc. No. 12-2262) provided with your VT Pro. It contains information that you must become familiar with prior to diving with your VT Pro.
  • Page 11 The Tissue Loading Bar Graph (Fig. 2a) represents tissue loading of nitrogen, showing your relative no decompression or decompression status. As your depth and elapsed dive time increase, segments will add to the Graph, and as you ascend to shallower depths, the Bar Graph will begin to recede, indicating that additional no decompression time is allowed for multilevel diving.
  • Page 12 Air. This calculation and display is based on your Air Consumption Rate that is continuously monitored by the VT Pro, and it takes into account the air required for a safe ascent including any required decompression stops.
  • Page 13 Pressure Alarm Set Point (described later). The bar graph is more precise as time decreases toward the red zone. The VT Pro constantly monitors three critical pieces of information; no decompression status, oxygen accumulation, and breathing gas consumption rate. Refer to the Oceanic Dive Computer Safety and Reference Manual which describes Dive Time Remaining which is a display that indicates the time that is more critical for you at that particular moment (i.e.;...
  • Page 14 During a dive, the Current Depth display (Fig. 6a), indicates Depths from 0 to 399 feet (120 meters) in 1 foot (.1 meter) increments. By pressing the Front (Advance) button, the Maximum Depth reached during that dive will be displayed (Fig. 6b). During a Decompression Dive, the required Ceiling Stop Depth is displayed in the Max Depth position.
  • Page 15 Ambient Temperature is displayed in Surface Mode and Log Mode, and can be viewed on an Alternate Display when the Front (Advance) button is pressed while in a dive mode (Fig. 7a). If the Temperature exceeds a value of '99', 2 dashes ( - - ) will be dis- played until temperature decreases to '99'.
  • Page 16 • Entry into Decompression Mode. • Air Time Remaining Bar Graph Alarm (a user setting). • Air Time Remaining = 5 minutes, then 0 minutes. • Turn Pressure Alarm (a user setting). • End Pressure Alarm (a user setting). • PO2 => than the Max PO2 Alarm (a user setting), or => 1.60 ATA. •...
  • Page 17 • Ascending above a required Decompression Ceiling Stop Depth for more than 5 minutes (referred to as a Delayed Violation). • Decompression requires a Ceiling Stop Depth of 70 feet/21 meters or deeper. • Being on the Surface for 5 minutes after a Conditional Violation (Permanent Violation). To activate the Backlight - press the Side (Select) button.
  • Page 18 Voltage level is checked upon activation and every 10 minutes during operation. When a Low Battery Condition occurs (either the Display Module or Transmitter), the Battery icon appears on the display flashing during Surface Mode (Fig. 8) and Fly/Desat Mode (after 2 hours on the surface following a dive). To determine whether the Low Battery Condition involves the Transmitter or Display Module - press the Side (Select) button for 2 seconds while in Surface Mode.
  • Page 19 (FO2) other than Air (a numerical value between 21 and 50 %). When set with an FO2 value of 'Air' (Fig. 10), the VT Pro will perform calculations the same as if FO2 were set for 21% oxy- gen, internally accounting for oxygen loading for any subsequent Nitrox dives.
  • Page 20 If the Default function is set to ON (Fig. 12) and FO2 is set to a value 'greater than 21%', the FO2 set point value will automatically revert to 50% 10 minutes after that dive. The Maximum Depth that can be achieved with a PO2 of 1.60 ATA will also be displayed.
  • Page 22 Before you dive with the VT Pro, you will need to become familiar with the interactive features and select desired settings. The Transmitter must be installed into the High Pressure port of your Regulator First Stage, facing to one side (Fig. 14). Oceanic strongly recom- mends that installation be performed by an Authorized Oceanic Dealer at the time of purchase.
  • Page 23 To Activate the VT Pro - • position the Display Module within 3 feet (1 meter) of and parallel to the Transmitter (Fig. 15), holding it in this location during activation. • press and release the Front (Advance) Button. • Upon manual activation, the unit will enter Diagnostic Mode (Fig.
  • Page 24 During the Diagnostic check, Battery voltage of both the Display Module and Transmitter are verified to determine if sufficient voltage is available to maintain operation. If there is not sufficient voltage for the Display Module, the unit will deactivate. If there is not sufficient voltage in the Transmitter, the Link icon and a Pressure value of 000 PSI (BAR) will flash (Fig.
  • Page 25 As a backup, the VT Pro will also automatically activate by water contact. This is accomplished by bridging the gap between contacts located on the Button stems and download Data Port. The graphic H2O will be displayed as an indication that the Module is wet.
  • Page 26 While in the Surface Mode you can access various other Modes that are described in detail throughout this manual. • Press the Front (Advance) button to access a sequence that includes Plan, Fly, DeSaturation, and Log Modes. • Press the Side (Select) button to activate the Backlight. •...
  • Page 27 Set Mode Access Timing While in Surface Mode, press Both buttons simultaneously and hold - • after 2 seconds, SET: 1 appears (Fig. 21) • after 2 more seconds, SET: 2 appears (Fig. 22) • Access is gained by releasing the buttons during the 2 second window in which SET: 1 or SET: 2 appears, then pressing the Front (Advance) button.
  • Page 28 • Press and release the Side (Select) button repeatedly to increase the FO2 value from 21 to 50% in increments of 1%, then display AIR again; - or - Press and hold the Side (Select) button to scroll from AIR to 32%, then press and hold again to scroll from 32 to 50%, then AIR.
  • Page 29 • Press and release the Side (Select) button until the desired Depth Alarm value appears; or press and hold to scroll through the set points. • Press the Front (Advance) button to accept the setting and advance to Elapsed Dive Time Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
  • Page 30 PC INTERFACE For more information PC Interface is not a setting, it is included in the Set 1 menu for regarding PC easy access when data is to be downloaded (copied) to the PC Interface, refer to download software program for storage and viewing. page 73 of this manual and to To download data (while in the Surface Mode)-...
  • Page 31 TO SET - UNITS OF MEASURE (while in the Surface Mode) Factory set for Imperial, Units of Measure can also be set for Metric. • Press Both buttons simultaneously, release when SET: 2 appears (4 seconds). • Press and release the Front (Advance) button, the Units screen appears with the graphics FT, F, and PSI (or M, C, and BAR) flashing (Fig.
  • Page 32 Setting Hour Format (continued) - • Press and release the Side (Select) button to toggle between 12 and 24. • Press the Front (Advance) button to accept the setting and advance to Set Hour, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
  • Page 33 TO SET - DATE (after setting Time) Factory set for the factory local Date, the Date can be set to values between 01/01/02 and 12/31/20. When set for Metric Units of Measure, Month appears to the right of Day. • After having set and accepted the Time, the Date appears with the graphic dAY, and Year value flashing (Fig.
  • Page 34 TO SET - AUDIBLE ALARM (while in the Surface Mode) Factory set for ON, the Alarm can be also be set to OFF. This setting also applies to the red LED Warning Indicator that is synchronized with the Audible Alarm. When set OFF, the Alarm will not sound during the conditions described on page 16.
  • Page 35 Setting TLBG Alarm (continued) - • Press Both buttons simultaneously, release when SET: 2 appears (4 seconds). • Press and release the Front (Advance) button, the Units screen appears with the set point flashing. • Press the Front (Advance) button 8 more times. •...
  • Page 36 Setting ATRBG Alarm (continued) - • Press and release the Side (Select) button to decrease the Alarm value in increments of 5 minutes. Or press and hold to scroll. • Press the Front (Advance) button to accept the setting and advance to Set Turn Pressure Alarm, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
  • Page 37 TO SET - END PRESSURE ALARM (while in Surface Mode) Factory set for 300 PSI, the End Pressure Alarm can be set to values between 300 and 1500 PSI (20 to 104 BAR) in increments of 100 PSI (7 BAR). •...
  • Page 38 Setting Dive Time Remaining (continued) - • Press Both buttons simultaneously, release when SET: 2 appears (4 seconds). • Press and release the Front (Advance) button, the Units screen appears with the set point flashing. • Press the Front (Advance) button 12 more times. •...
  • Page 39 Setting PO2 Alarm (continued) - • Press and release the Side (Select) button to advance the Alarm value in increments of .10 (ATA). • Press the Front (Advance) button to accept the setting and advance to Set FO2 50% Default, or press and hold Both buttons for 2 seconds to revert to Surface Mode.
  • Page 40 TO SET - BACKLIGHT DURATION (while in Surface Mode) Factory set for 3 seconds, the Backlight Duration can be set to values of 0, 3, or 7 seconds. This is the length of time the Back- light stays On after the button is released. •...
  • Page 41 Setting Sampling Rate (continued) - • Press Both buttons simultaneously, release when SET: 2 appears (4 seconds). • Press and release the Front (Advance) button, the Units screen appears with the set point flashing. • Press the Front (Advance) button 16 more times. •...
  • Page 42 Factory set for ON, the Water Activation feature can also be set for OFF (disabled) to prevent inadvertent activation during travel or storage. When set ON, the VT Pro will automatically Activate when immersed in water. • Press Both buttons simultaneously, release when SET: 2 appears (4 seconds).
  • Page 43 TO SET -LINK CODE (while in Surface Mode) Factory set for ON and the Serial Number of the Transmitter shipped with the Display Module, the 6 digit Code can be set for OFF or numbers ranging from 000000 to 999999. When set OFF, the Display Module's receiver is disabled and no displays or calculations relating to Pressure are provided.
  • Page 44 Setting Link Code (continued) - • Press and release the Side (Select) button to change the Second digit. • Press the Front (Advance) button to accept the Second digit. The Third digit begins to flash. • Press and release the Side (Select) button to change the Third digit.
  • Page 47 The Transmitter emits a low frequency signal that radiates outward in a semicircular pattern that is parallel to the length dimension of the Transmitter. A coiled antenna inside the Display Module receives the signal when it is positioned within a zone parallel to or at a 45 degree angle to the Transmitter as shown on page 46 Fig.
  • Page 48 Strobe flashes. The Link will be restored within 4 seconds. Oceanic strongly recommends that you review the Pre Dive Planning Sequence (PDPS) prior to every dive to help you plan your dive as required to avoid exceeding no decompression or oxygen exposure limits.
  • Page 49 To access the Pre Dive Planning Sequence (while in the Surface mode) - FEET • Press the Front (Advance) button 1 time • Press and release the Side (Select) button to advance through the Depths/Times, one screen at a time; and then return to Surface Mode.
  • Page 50 As your Depth and Elapsed Dive Time increase, the Tissue Loading Bar Graph (TLBG) will add segments (green toward red) to represent the absorption of nitrogen. While ascending to shallower depths, the number of segments displayed will begin to recede, offering a graphic representation of your multilevel diving capability.
  • Page 51 The Variable Ascent Rate Indicator (VARI) shows how fast you are ascending. When you exceed the maximum recommended FEET Ascent Rate for the depth you are at, it will enter the red (Too Fast) zone and you will be alerted all segments of the Bar Graph flashing (Fig.
  • Page 52 During No Decompression conditions, up to 4 Main Displays of information are available. Each provides Depth, Dive Time Remaining, Mode icon (Fig. 57) and additional information. The intent of this feature is to provide you with control of how much information is displayed at any given time during the dive.
  • Page 53 The VT Pro will enter the No Decompression Dive Mode when you descend deeper than 4 feet (1.2 meters). FEET Information includes Current Depth, Dive Time Remaining and Mode icon, Tank Pressure, and the applicable bar graphs. • Press and release the Front (Advance) button to view Display...
  • Page 54 Information includes - Current Depth, current value of PO2 (if a FEET nitrox dive) and PO2 graphic, Dive Time Remaining and icon, Tank Pressure, and applicable bar graphs. • press the Front (Advance) button to view Display #1. Information includes Current Depth, Air Time Remaining (and Mode icon), and applicable bar graphs.
  • Page 55 (10 meters), or you surface. There is no Penalty if you surface prior to completing the Safety Stop. The VT Pro is designed to help you by providing a representation of how close you are to entering Decompression. Decompression Dive Mode (Fig. 64) activates when theoretical No Decompression time/depth limits are exceeded.
  • Page 56 To fulfill your decompression obligation, you should make a safe FEET controlled ascent to a depth slightly deeper than (Fig. 65a), or equal to, the Required Ceiling Stop Depth indicated (Fig. 65b) and decompress for the Stop Time indicated (Fig. 65c). The amount of decompression credit time that you receive is dependent on depth, with slightly less credit given the deeper you are.
  • Page 57 Information includes - Current Depth, Temperature, Time of Day and icon, Total Ascent Time and Mode icon, Tank Pressure, both FEET Arrows and the Deco Bar, and the bar graphs. Information includes - Current Depth, the current value of PO2 (if a nitrox dive) and PO2 graphic, Total Ascent Time and Mode icon, Tank Pressure, both Arrows and the Deco Bar, and appli- cable bar graphs.
  • Page 58 Once the Penalty Time is worked-off, and off-gassing credit begins, required decompression Stop Depths and Time will decrease toward zero. The Tissue Loading Bar Graph will recede into the yellow Caution Zone and the VT Pro will revert to the No Decompression Dive Mode.
  • Page 59 The VT Pro cannot calculate decompression times for Stop Depths much greater than 60 feet (18 meters) and offers no indication of FEET how much time spent underwater would result in the need for a greater Stop Depth. If the Decompression obligation requires a Ceiling Stop Depth between 60 feet (18 meters) and 70 feet (21 meters), the Tissue Loading Bar Graph will flash.
  • Page 60 The VT Pro would then operate with limited functions in Gauge Mode during the remain- der of that dive and for 24 hours after surfacing. Gauge Mode turns the VT Pro into a digital instrument without any decompression or oxygen monitoring functions.
  • Page 61 The countdown timer that appears when you try to access Time to Fly does not represent Time to Fly. It is only provided to inform you of the time remaining before normal VT Pro operation can resume with full features and functions.
  • Page 62 If PO2 continues to increase, the value displayed will increase toward a maximum value of 5.00 ATA in increments of .01 ATA. When it reaches a value of 1.60 ATA, or the PO2 Alarm set point (a user setting), the Audible Alarm will sound (unless set OFF) and the current PO2 value, PO2 symbol, O2 segment of the O2 Bar Graph, and UP Arrow will flash as a warning (Fig.
  • Page 63 • The unit will revert to the Main Default Display after 3 seconds. • Press the Side (Select) button to activate the Backlight. When Digital Gauge Mode is set for ON, the VT Pro will operate as a Digital Depth Gauge/Timer without performing nitrogen and oxygen calculations (Fig. 78).
  • Page 64 If your VT Pro stops working for any reason, it is important that you have anticipated this possibility and are prepared for it. This is an important reason for not pushing the no decompression and oxygen accumulation limits, and a critical reason to avoid entering decompression.
  • Page 66 When you ascend to 3 feet (1 meter) or shallower, the VT Pro will enter Surface Mode and begin counting your surface interval. If you descend during the first 10 minutes after surfacing (the Transition Period), time underwater will be considered a continu- ation of that dive.
  • Page 67 • Press the Front (Advance) button 1 time. • Press the Side (Select) button 1 time to view the Nitrogen data screen. See page 71. • Press the Side (Select) button again to view the Oxygen data screen (if a nitrox dive). See page 71. •...
  • Page 68 • Press the Front (Advance) button 1 time (while in Surface Mode). FEET • Press and release the Side (Select) button to advance through the sequence of depths and 'adjusted' times. • Press Both buttons simultaneously for 2 seconds to return to Surface Mode.
  • Page 69 • Press the Front (Advance) button 3 times. • If a Violation occurred during the dive, Desaturation Time will not be displayed. • Press Both buttons simultaneously for 2 seconds to return to Surface Mode. • The unit will revert to Surface Mode after 2 minutes if no button is pressed.
  • Page 70 Button Control in Log Mode - • The Front (Advance) button is used to access a specific dive's Log. • HINT: To bypass a dive's Log and search for another in the sequence, press the Front (Advance) button repeatedly. Do not press the Side (Select) button until you find the dive Log you wish to view.
  • Page 71 To view the Second Screen of the Log (Nitrogen data) - Press the Side (Select) button 1 time (while viewing the Time/ FEET Date). Displayed will be (Fig. 87) - • Log Mode icon • Maximum Depth - reached during the dive (and icon) •...
  • Page 72 Two hours after the last dive, Surface Mode will no longer be displayed, the Time to Fly and Desaturation countdowns will be displayed alternately for 3 seconds each until they count down to 0:00 or another dive is made. To access other modes or enter settings - •...
  • Page 73 • If no dive is made, the unit would shut off after 2 hours, then automatically reactivate again, repeating the action until cleaned and dried. Using special linking hardware, dive data can be downloaded (copied) from your VT Pro to an IBM compatible PC program running on a Windows ®...
  • Page 74 The VT Pro is configured with a RESET feature that allows data to be cleared, including Nitrogen and Oxygen calculations, FO2 set point, Log Mode entries, and Download data. • While in SURFACE MODE (new activation period or greater than a 10 minute post dive surface interval), press the Front (Advance) button 1 time to access PLAN MODE.
  • Page 76 2 seconds shall revert opera- tion to real Surface Mode. • The real set points entered into the VT Pro do not affect the operation of the Simulator which has its own settings that allow Digital Gauge Mode to be set ON or OFF, calculations to be cleared, and FO2 to be set.
  • Page 77 Tank Pressure. • When set for CYL, Air Time Remaining is calculated based upon actual Pressure of the Tank that the VT Pro is con- nected to. • When set for a numerical value, calculations will be based...
  • Page 78 • Press and release the Side (Select) button to advance through DEMO the Pressure settings. • Press and release the Front (Advance) button to accept the setting and revert to Demo Surface Mode with the DEMO icon flashing (Fig. 98). •...
  • Page 79 DEMO • Press and hold the Side (Select) button for 2 seconds to access Demo Dive Mode. The DOWN Arrow will appear flashing (Fig. 100). Hint: Quick taps (<2 seconds) of the Side (Select) button starts/ stops Descents and Time Acceleration. Quick taps of the Front (Advance) button accesses Alternate displays.
  • Page 80 DEMO Rate of Ascent can be set for 1 or 3 feet per second (fps) prior to FEET start of the Ascent. To change the Rate during an Ascent, it must first be stopped. • Pressing and holding the Front (Advance) button for 2 sec- onds will access an Ascent Rate of 1 feet per second.
  • Page 81 • The Simulator will enter Demo Surface Mode (Fig. 104) upon ascending to 3 feet (1 meter) or shallower. • Press and hold the Side (Select) button for 4 seconds to access Time Acceleration. The small Time Clock icon will begin flashing.
  • Page 82 Be a - RESPONSIBLE DIVER at all times.
  • Page 84 Protect your VT Pro from shock, excessive temperatures, chemical attack, and tampering. Protect the lens against scratches with a transparent Instrument Lens Protector. Small scratches will naturally disappear underwater. • Soak and rinse the Display Module in fresh water at the end of each day of diving, and check to ensure that the areas around the Low Pressure (Depth) Sensor (Fig.
  • Page 85 Take your VT Pro to an Authorized Oceanic Dealer or send it to the nearest Oceanic Regional Distributor Facility (page 99). To return your VT Pro to Oceanic: • Record all dive data in the Log and/or download the data in memory. All data will be erased during factory service.
  • Page 86 Inspect the Buttons, Lens, and Housing(s) to ensure they are not cracked or damaged. If there is any sign of moisture in the Display Module or Transmitter, DO NOT use the VT Pro until it receives proper service by an Authorized Oceanic Dealer, or the Oceanic factory.
  • Page 87 • 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.
  • Page 88 • Closely examine the sealing surfaces of the Battery Hatch(es) and Housing(s) for any signs of damage that might prevent proper sealing. If found, return the VT Pro to an Authorized Oceanic Dealer, and DO NOT attempt to use it until it has received factory service.
  • Page 89 • 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 VT Pro to an Authorized Oceanic Dealer, and DO NOT attempt to use it until it has received factory service.
  • Page 90 Cap into the Groove at the Base of the Threads. • This O-ring must be a genuine Oceanic part that can be purchased from an Authorized Oceanic Dealer. Use of any other O-ring will void the warranty.
  • Page 91 • Verify that Tank Pressure and the Link icon are displayed. • If any portions of the display are missing or appear dim, or if a Low Battery Condition is indicated, return your VT Pro to an Authorized Oceanic Dealer for a complete evaluation...
  • Page 92 • If air leakage is present, DO NOT use, take the complete Regulator Assembly to an Authorized Oceanic dealer for inspection and service. Oceanic VT Pro Transmitters are rated for use with compressed Air and/or nitrogen-oxygen (Nitrox) breathing gas mixtures containing up to 40% O2 by volume without the need for special cleaning or component parts.
  • Page 102 OCEANIC ® USA 2002 Davis Street San Leandro, CA 94577 Tel: 510-562-0500 Fax: 510-569-5404 http://www.OceanicWorldWide.com © 2002 Design 200 Doc. No. 12-2338-r02 (2/3/03)