FLIR Raymarine i70s, Installation & Operation Instructions

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7.6 Compass calibration
You can calibrate a Fluxgate Compass that is
connected to an iTC-5.
The compass must be connected to the compass
connection of the iTC-5 . Compasses connected
to an autopilot must be calibrated using a Pilot
Controller.
Swinging the Compass
You will need to turn your vessel in slow circles while
the system automatically makes adjustments to
account for Compass Deviation. Each 360-degree
circle should take no less than two minutes, and you
should complete at least two circles.
It is recommended that a second instrument display
or MFD is used to display heading data, whilst
performing the Compass Swing.
From a favorite page:
1. Select
Menu .
2. Select Set-up .
3. Select Transducers Set-up .
4. Select Continue .
The instrument display will search for and display
a list of connected devices. (i.e. iTC-5, DST or
transducer pod)
5. Select iTC-5 .
A list of available transducer data is displayed,
6. Select Compass .
7. Select Swing Compass .
8. Start moving vessel in slow even circles, then
press Start .
9. Keep vessel speed to below 2 knots. Watch the
display to ensure your turn rate is not too fast. If
the message ‘Slow Down — turn rate too fast’ is
displayed reduce your rate of turn, this can be
achieved by slowing down and / or steering in
a wider circle.
If the 'Slow Down — turn rate too fast' message
is displayed the current circle will have to be
repeated.
When the Compass has been calibrated, a
message will be displayed showing the detected
Compass Deviation.
10. If the deviation is greater than 15 degrees you will
need to relocate the Compass further away from
metal items or items that may cause interference,
then repeat the calibration process. If you still
find a deviation of more than 15 degrees, contact
your Raymarine dealer for advice. If the deviation
is within acceptable limits, press
Cancel .
Setting the Compass Offset
You can manually apply an offset to the Compass
heading by following the steps below.
To apply an offset you require a source of heading
such as the ship’s compass.
From the transducers found page:
1. Ensure that the Rudder is centred
2. Select
iTC-5 .
A list of available transducer data is displayed.
3. Select Compass .
4. Select Compass Offset .
5. Steer your vessel on a steady course.
6. Use the
Up and Down buttons to adjust the
Compass Offset until the displayed heading
matches the heading of the ship’s compass.
7. Select Save .
Transducer calibration 49