Oceanic VT 4.0, Operating Manual

47

VT 4.0 OPERATING MANUAL

© 2002 Design, 2011

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

>  If SET HEADING, display REF OP Main with the Heading flashing allowing it to be set.

>  If REVERSE HEADING, select it as the OP Mode with new Heading (180° opposite of Reference Heading set).

Set Reference Heading,

 information includes (Fig. 119) -

>  Current Depth with FT (or M) icon, blank on surface.

>  Reference Mode icon (2 bars with arrow) with graphic SET (flashing) below it.

>  Static Arrow icon (at 12 o'clock), diver direction of travel.

>  Dynamic Arrow, tracking Reference direction set.

>  Numeric heading (diver's direction), with position graphic.

>  On time remaining, counting down, if 15 to 0 (sec).

•  S (< 2 sec) to flash Heading value, with SET solid.

•  Rotate (keeping level) in either direction to new Heading.

•  S (< 2 sec) to lock in new Heading, replacing SET.

Reverse Ref Heading,

 information includes (Fig. 120) -

>  Current Depth with FT (or M) icon, blank on surface.

>  Reverse Mode icon (2 bars with arrow) with reverse Heading (180° opposite of Reference Heading set) below it (flashing).

>  Static Arrow icon (at 12 o'clock), diver direction of travel.

>  Dynamic Arrow, tracking Reference direction set.

>  Numeric heading (diver's direction), with position graphic.

>  On time remaining, counting down, if 15 to 0 (sec).

•  S (< 2 sec) to reverse Heading.

The value below the Reverse Mode icon will stop flashing indicating the Heading has been reversed.

CALIBRATION 

(surface only)

Local magnetic fields can effect display of actual location when reading a digital compass. 

It may be advantageous 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 selecting Calibration on the Compass Menu (by S < 2 sec), a screen appears displaying the graphics CAL with Face Down 

Until Beep (Fig. 121A)*. 

*This screen will also be accessed after the Battery is changed and Data is either saved or cleared. 

To initiate Calibration -

>  turn the unit over (face down, Fig. 121A) until it beeps, then -

>  turn the unit over (face up, Fig. 121B) until it beeps, after which a screen appears displaying the graphics CAL with Rotate 

To Calibrate 360° (Fig. 122).

>  while keeping it in a flat level position, slowly and steadily rotate* it 360° while keeping it in a flat level position (keeping it 

level is critical for accuracy), progress will be indicated by a circle forming on the display (Fig. 123). 

*Rotation should take about 15 seconds.  If not fully rotated in 15 seconds, operation will revert to the Compass Menu.  

Calibration complete -

>  Once fully formed, the circle will be replaced with the graphics Ready Passed Calibration (Fig. 124) or Failed Calibrate 

Again, flashing for 3 seconds, then - 

>  If READY, operation reverts to the Compass OP Main.

>  If FAILED, operation reverts to the CAL Face Down Until Beep screen for repeat of the procedure.  

>  If Calibration fails 3 times, operation reverts to the Surface Main screen.

Fig. 119 - SET REF HEADING

(rotate to desired Heading)

Fig. 120 - REVERSE REF 

HEADING

(from 260°, to 080°)

Fig. 121A - ACCESS TO CAL

(turn unit upside down)

Fig. 121B - AFTER BEEP 

(turn unit right side up)

Fig. 122 - TO START CAL

Fig. 124 - CAL PASSED

Fig. 123 - CAL PROGRESS

(circle forms while rotating)