Seatrial and Calibration
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7
Seatrial and Calibration
Once the Micronet system has been installed on the vessel and Auto
Networking has been completed it is necessary to carry out Calibration.
It is not safe to use the displays for navigational purposes until
Calibration has been carried out correctly.
7.1
Compass Calibration and Alignment
To compensate for deviation caused by magnetic objects on the boat, it
is necessary to carry out a deviation correction turn.
The compass reading may be set to the correct heading.
To begin the calibration process
Press and hold
for 2 seconds to enter Setup.
Press
repeatedly to scroll to the
Heading
chapter
To complete a deviation correction turn
Press
to scroll to the
DEV
page
Press
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)
Note:
If the rate of turn of the vessel is too fast the display will
show "FAST TRN". 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.
Press
to exit Compass Calibration Mode
Then, to align the heading
Using a hand bearing compass or an external fixed compass, steer the
vessel on a known heading.
Warning: Only use an external fixed compass as a known heading if you
are certain it has been checked and compensated.
Press
repeatedly to scroll to the
Compass Offset
page.
Press
to enter Edit Mode.
Use
and
to change the displayed heading (in small text)
to the known correct value.
The display shows the offset entered.
Press
to exit Edit Mode.
Press and hold
to exit Setup and return to normal operation.
