EFD1000 Installation Manual
DOCUMENT # A-01-126-00 PAGE 147-225 Revision H
© Copyright 2009 Aspen Avionics Inc.
10.5 RSM Calibration
10.5.1 Calibration Overview
The Remote Sensor Module must be calibrated by performing a compass swing in the
aircraft for any new installations and any follow up maintenance activities that could
affect RSM accuracy.
Such activities might include but are not limited to the replacement of the RSM,
replacement of the Configuration Module, installation of a mechanical or electrical
device in the vicinity to the RSM, installation of an appliance that might generate a
magnetic interference.
NOTE:
Before replacing the RSM and/or the Configuration Module, determine if the
current installation has had SB2009-02 applied by referring to the EFD1000 Configuration
Chart or the aircraft logs. If so, do not replace the Configuration Module or RSM without
completing the calibrations as identified in the SB2009-02. Contact an Aspen Avionics FSE for
more information.
An overview of the RSM Calibration procedure is as follows (see Figure 10.24):
CAUTION: When a Calibration is initiated, the aircraft must be turned as described
below. If the calibration is initiated and then accepted without moving the aircraft, an
erroneous calibration will be written to the Configuration Module, potentially resulting
in failure to initialize.
• A heading will be checked to verify the reasonableness of PFD heading prior to
calibration.
• The aircraft will be taxied to a magnetically quiet and level area at least 200ft
from metal buildings and clear of metal grates, manhole covers and rebar
within the concrete. A Compass Rose is ideal for this procedure.
• The aircraft can start from any heading.
• With engines running, all electrical equipment operating, and the aircraft
stationary the RSM CAL page will be entered and Start Calibration will be
initiated (see Figure 10.25).
• After a 10 second count down timer the pilot/operator will begin to taxi the
aircraft in a circle (cw or ccw) with the radius of approximately twice the length
of the aircraft’s wing as viewed from the cockpit (≈ 30ft).
• The aircraft will be taxied under its own power at a constant rate around a
circle until a 60 second timer elapses. The aircraft
must not
stop until the timer
has exhausted.
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