TruTrak Digiflight Operation Manual User Manual

Page 13

moved within the panel, or if
new equipment is installed
nearby. In order to skip this
step, press and quickly release
the encoder knob while

selected.

If calibration is desired, it

must be done in the air on a day
in which there is little wind or
turbulence. The autopilot will
turn the aircraft through a full
circle, using the GPS signal as a
reference to calibrate the
internal magnetometers.

The aircraft is turned, first

to North, then East, then South,
and finally West. At each step,
the heading is maintained for
approximately 20 seconds while
the autopilot gathers and
averages the data from the
magnetometer.

The magnetometer is

initially calibrated at the factory
for operation in an environment
free of magnetic disturbances,
and should be functional,
though not accurate, when
mounted in the aircraft. To
calibrate the magnetometer, the
aircraft must first be trimmed
for level flight.
(1) Rotate the encoder knob to

select

in the setup screen.

(2) Press and release the
encoder knob to begin the setup
sequence. The screen will now
show:

The aircraft will now turn

to North using GPS as a

reference. Once this is done, the
screen will now show:

After a period of

approximately 20 seconds, the
screen will show:

Again, the aircraft will turn

to a heading of 090. In the
same manner as before, the
screen will say

HOLDING

for

twenty seconds. This process is
continued through South and
West. Once the westerly data
has been averaged for twenty
seconds, the process is complete
and the screen will show:

At this time, press and release
the encoder knob to confirm the
calibration and enter the
resulting data into permanent
memory. This concludes the
setup procedure for the
Digiflight 100. The Digiflight
200 and 200VS continue to the
next setup screen.

If magnetic calibration was

not done, the next screen will
begin the pitch setup. If
magnetic calibration was done,
the autopilot will be engaged.
To configure the pitch portion
of the autopilot it will be
necessary to get into the setup

CALIBRATING
TURNING NORTH

CALIBRATING

HOLDING NORTH

CALIBRATING
TURNING EAST

CALIBRATION DONE
PRESS ENTER