Garmin STEADYCAST HEADING SENSOR Installation Instructions Manual page 3

interference is present. You must choose
another location and test again.
• Mounting screws are provided with the
sensor. If you use mounting hardware
other than the provided screws, the
hardware must be made of quality
stainless steel or brass material to avoid
magnetic interference with the sensor.
NOTE: Test all mounting hardware with a
handheld compass to make sure no
magnetic fields are present in the
hardware.
• The sensor can be mounted in any
orientation, and is not required to be
installed in the same horizontal plane as
the boat.
NOTE: You can set the heading
alignment automatically if a GPS source
is connected to the NMEA 2000 network.
If you are not using a compatible Garmin
chartplotter, the boat must be able to
reach a cruising speed of at least
6.4 km/h (4 mph}. You can set or fine-
tune the heading alignment using Fine
Heading Alignment with a compatible
Gam1in chartplotter. If these options are
not available, you must align the heading
by adjusting the sensor installation
manually to point the arrow parallel to the
front of the boat.
Mounting the Sensor
You can mount the sensor with the cable
along the mounting surface or with the cable
routed through the mounting surface under
the sensor.
1
Select a mounting location (page 2).
2
If you plan to route the cable through the
mounting surface, use a 25 mm (1 in.}
drill bit to drill the cable-passthrough hole
into the mounting surface at the selected
mounting location.
3
If necessary, route the cable through the
cable passthrough hole.
4
Using a bit appropriate for the mounting
surface and mounting hardware, drill two
pilot holes (optional}.
5
Secure the sensor to the mounting
surface, observing these guidelines for
best performance:
• If you are using your own mounting
hardware instead of the included
screws, test the hardware for
magnetic interference (page 2).
• Do not use excessive force when
installing mounting screws. Use only
the amount of force needed to keep
the sensor in place.
• Apply force evenly between the
mounting screws.
• Install the mounting screws
perpendicular to the mounting surface
(not at an angle}. The heads of the
Installation Instructions
screws should rest in the center of the
grooves.
6
Route the cable to the NMEA 2000
network.
7
If you routed the cable through the
mounting surface, fill the cable hole in the
side of the sensor with marine sealant
(optional}.
NMEA 2000 Connection
Considerations
• This sensor connects to an existing
NMEA 2000 network on your boat.
• If the integrated NMEA 2000 drop cable
is not long enough to reach your NMEA
2000 network, a drop cable extension of
up to 4 m (13 ft.) can be used, according
to the NMEA 2000 guidelines.
(j) Heading sensor
®
NMEA 2000 power cable (existing; not
included)
@
Ignition or in-line switch (existing; not
included)
©
12 Vdc power source
@ NMEA 2000 T-connector (included)
@ NMEA 2000 terminator or backbone cable
(existing; not included)
Calibration
After installation is complete, you must
calibrate the heading sensor for best results.
Depending on the types of devices
connected to the NMEA 2000 network, you
can calibrate the sensor using either a menu-
based method or a basic method.
When you connect the sensor to the same
NMEA 2000 network as a compatible Garmin
chartplotter, you are prompted to begin
menu-based calibration when the chartplotter
detects the new sensor (page 4). Go to
www.garmin.com for a list of compatible
chartplotters.
NOTE: A
software update available in
mid-2017 enables you to perform menu-
based calibration using a compatible
chartplotter. If your chartplotter has software
that predates this update, you must perform
basic calibration.
If you connect the sensor to a NMEA 2000
network without a compatible Garmin
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