Operation Manual

57
VT 4.0 OPERATING MANUAL
© 2002 Design, 2011 Doc. No. 12-5213-r02 (9/6/11)

• Dive Computer (Air or Nitrox) with up to 4 Gases up to 100% O2 and 4 Transmitters.
• Digital Depth Gauge/Timer with up to 4 Transmitters.
• Free Dive (breath hold) activity with Depth Gauge/Countdown Timer.
• Compass.

• Buhlmann ZHL-16c based Pelagic Z+, or DSAT based, algorithm.
• No Deco limits closely follow PADI RDP.
• Decompression in agreement with Buhlmann ZHL-16c and French MN90.
• No Deco Deep Stops >> Morroni, Bennett.
• Deco Deep Stops (not recommended) >> Blatteau, Gerth, Gutvik.
• Altitude >> Buhlmann, IANTD, RDP (Cross).
• Altitude corrections and O2 limits based on NOAA tables.

• Battery and Pressure check
> every 2 seconds when awake
• Startup
> Pressure => 120 PSI (8 BAR)
> Battery => 2.75 volts
• Shutdown
> Pressure < 50 PSI (3.5 BAR)

• When packaged and shipped from the factory, Oceanic Transmitters are rated for use with compressed Air and Nitrox mixtures containing up to 99% O2 by volume and with 100% O2.

 Accuracy:
• Depth ±1% of full scale
• Timers 1 second per day

• Must rst be activated by button press, if Wet Activation is set OFF.
• Automatic by immersion in water, if Wet Activation is set ON.
• Cannot be manually activated deeper than 4 FT (1.2 M), if Wet Activation is set OFF.
• Cannot operate as a DC at elevations higher than 14,000 feet (4,270 meters).

• 2 hours after activation, if no dive conducted.
• 24 hours after conducting a dive, if no further dives conducted.

• 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).

• Stores 24 most recent NORM/GAUG dives in memory for viewing.
• After 24 dives, adds 25th dive in memory and deletes the older dive.

• Operational from sea level to 14,000 feet (4,270 meters) elevation.
• Measures ambient pressure upon activation and every 15 minutes while in Surface modes.
• Does not measure ambient pressure when Wet.
• Compensates for Altitudes above sea level beginning at 3,001 feet (916 meters) elevation and every 1,000 feet (305 meters) higher.

• Battery (1) 3 vdc, CR2450, Lithium battery (Panasonic or equivalent)
• Transmitter Battery (1) 3 vdc, CR2, .75 Ahr, Lithium battery (Duracell model DL-CR2 or equivalent)
• Shelf life Up to 5 years
• Replacement User replaceable (annual recommended)
• Use Life 1 year or 300 dive hours if (2) 1 hour dives per dive day
• Use Life (Transmitter) 300 dive hours if (2) 1 hour dives per dive day

• Warning >> icon on solid when <= 2.75 volts, Battery change recommended.
• Alarm >> icon on ashing when <= 2.50 volts, change the Battery, will not function.

• Out of the water >> between 20 °F and 140 °F (-6 and 60 °C).
• In the water >> between 28 °F and 95 °F (-2 and 35 °C).

 segments 
• No Deco Normal zone 1 to 3
• No Deco Caution zone 4
• Decompression zone 5 (all)
 60 FT (18 M) & Shallower Deeper than 60 FT (18 M)
segments FPM MPM segments FPM MPM
0 0 - 10 0 - 3 0 0 - 20 0 - 6
• Normal zone 1 11 - 15 3.5 - 4.5 1 21 - 30 6.5 - 9
Normal zone 2 16 - 20 5 - 6 2 31 - 40 9.5 - 12
Normal zone 3 21 - 25 6.5 - 7.5 3 41 - 50 12.5 - 15
• Caution zone 4 26 - 30 8 - 9 4 51 - 60 15.5 - 18
• Too Fast zone (ashing) 5 (all) > 30 > 9 5 (all) > 60 > 18
SPECIFICATIONS