Operation Manual
56
OC1 OPERATING MANUAL
© 2002 Design, 2009 Doc. No. 12-2761-r04 (9/6/11)
COMPASS OPERATION
Once it is Calibrated, Declination is set, the OP Mode is selected, and the course Heading is set (if Reference), the OC1 is ready
for operation on the surface or underwater.
• S (2 sec) - to access Compass OP Main while viewing a Surface or Dive Main screen (NORM, GAUG, or FREE) or the
Watch Default Time screen
North OP Main, information includes (Fig. 154) -
> Depth with FT (or M) icon, blank on surface
> North Mode icon
> Static Arrow icon, diver direction of travel
> Dynamic Arrow icon, relative direction of magnetic north
> Tilt icon (Fig. 154a), while Compass is tipped to either side (left or right) at an angle > 20°. Correct by moving Compass to
a level position.
> Diver's Heading as 001 to 360° with quadrant graphic.
Value removed when the Tilt icon is on.
• S (2 sec) or 60 sec - reverts to Surface or Dive Main, or Watch Time (whichever one access was from)
Reference OP Main, information includes (Fig. 155) -
> Depth with FT (or M) icon, blank on surface
> Reference Mode icon
> Static Arrow icon, diver direction of travel
> Turn Arrow icon (left or right) flashing, while > 10° deviation from Heading set
> Dynamic Arrow icon, tracking set Reference direction
> Tilt icon, while Compass is tipped to either side (left or right) at an angle > 20°
> Diver's Heading as 001 to 360° with quadrant graphic.
Value removed when the Tilt icon is on.
• S (2 sec) or 60 sec - reverts to Surface or Dive Main, or Watch Time (whichever one access was from)
• A (2 sec) - accesses Auto Home Reference Mode which changes and flashes the Mode icon (Fig. 156), then -
• S (2 sec) or 60 sec - reverts to Surface or Dive Main, or Watch Time (whichever one access was from), with Compass
operation remaining in Reference Mode
• S (< 2 sec) - inverts the Heading, and during dives changes Compass operation to Auto Home.
> On surface operation remains in Reference Mode after return to the Surface or Dive Main, or Watch Time (whichever one
access was from).
Auto Home Main, information includes (Fig. 157) -
> Depth with FT (or M) icon
> Auto Home Mode icon
> Static Arrow icon, diver direction of travel
> Turn Arrow icon (left or right) flashing, while > 10° deviation from Heading
> Dynamic Arrow icon, tracking Home direction
> Tilt icon, while Compass is tipped to either side (left or right) at an angle > 20°
> Diver's Heading as 001 to 360° with quadrant graphic.
Value removed when the Tilt icon is on.
• S (2 sec) or 60 sec - reverts to Dive Main
Fig. 154 - NORTH OP MAIN
(during dive, Tilt)
a
Fig. 155 - REF OP MAIN
(during dive, Turn Left)
Fig. 156 - REF AUTO HOME
Fig. 157 - REF AUTO HOME
WARNING: You must become thoroughly familiar with setup and operation of the OC1 Digital
Compass before using it as your primary device for navigation. Failure to do so could result in
serious errors relating to activities involving navigation.
> Practice on land before use in water.
> Practice on the surface before use underwater.