ON-‐SCREEN DISPLAY (OSD) CAMERA FUNCTIONS
The Manta camera contains a digital temperature sensor, a pressure sensor for measuring camera
depth, and an electronic compass sensor used to determine the heading of the camera. The
monitor base includes an additional compass sensor used to determine the heading of the
monitor. The OSD circuit receives data from the camera, calculates the direction the camera is
facing relative to the monitor, and displays temperature, depth, voltage, and heading. The
heading is displayed as an arrow which rotates around a small compass-like display with your
gauges. For this indication to be accurate, the camera must be suspended by the cable, and the
monitor must be on a level surface. If either the camera or the monitor rotates, so will the arrow.
An arrow at the top center of the screen indicates that the camera and monitor are facing in the
same direction. An arrow at the left indicates the camera is pointing to the left relative to the
direction the monitor is facing. Down indicates behind, and right indicates to the right. When
enabled, the temperature, voltage, and depth are also displayed along the top.
Compass Calibration:
First, have your monitor on a level surface like a countertop, and have
the camera hanging freely about two feet below.
To re-calibrate, go to SYSTEMS SETTINGS, and then highlight CAM COMP CAL. Select ON,
and press MENU/ENTER.
Now rotate the camera two full revolutions and back while keeping it level. Go back to CAM
COMP CAL in the menu, and select OFF.
Next, go to SYSTEM SETTINGS, and then highlight LCD COMP CAL. Select ON, and press
MENU/ENTER.
Now slowly rotate the monitor on a level surface two full revolutions. Go back to LCD COMP
CAL in the menu and select off.
You directional arrow should now be accurate.
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Versa Electronics
www.marcumtech.com
