Compass Calibration And Alignment - Raymarine mn100 User Manual

mn100 Dual Digital Display
4.4

Compass Calibration and Alignment

To ensure that inaccuracies caused by metallic and magnetic objects on
the boat are kept to a minimum is necessary to calibrate the compass.
A deviation caused by surrounding objects will be compensated for and
the compass reading may be set to the correct heading.
Press and hold the
Press the
Chapter
To Complete a deviation correction turn:
Press the
If the rate of turn of the vessel is too fast the display will show
"TURN HIGH". It is not necessary to abandon the turn at this stage
but do lessen the rate of turn by reducing speed or widening the
turning circle.
Continue to align the heading
Steer the vessel on a known heading.
only use the main steering compass as a known heading if you are
certain it has been checked and compensated.
Press the
normal operation.
32
button for 2 seconds to enter Setup
button repeatedly to scroll to the SETUP COMPAS
button to advance to the Deviation Page
Press the button to enter Compass Calibration Mode
Turn the vessel slowly keeping the speed below 4 knots and
taking approximately 2 minutes to complete 360 degrees.
Keep turning the vessel until the display changes to show a
value (usually about 1.25 turns)
button twice to display the Heading page
Press the button to enter Edit Mode
Press the
value. The lower digits will display the offset entered.
Press the button to exit Edit Mode
Press and hold the
and buttons to change to the known
button to exit Setup and return to