EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 160-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
If the headings are within ±10º then press ACCEPT and use the Heading Offset
Adjustment in Section 10.5.3 to align each heading value to actual.
NOTE: Typically with a clean RSM location the heading values will be within 3 degrees of actual
heading. If they are outside this value the RSM mounting area should be rechecked for
magnetic contamination (internal interference) or the calibration can be rerun in a new
location (external interference) to see if the values are improved. RSMs tilted to the upper
end of the limit may not be able to achieve the 3 degree or less of error without using the
Heading Offset Adjustment).
Pressing the “ACCEPT CALIBRATION” selection shall accept the calibration results, display
the annunciation shown in Figure 10-15 for 5 seconds, and return the “RSM
CALIBRATION” menu page to its initial state.
Figure 10-15: Results Accepted
Pressing the “REJECT CALIBRATION” selection shall reject the calibration results. Reject
the results if the calibration was poor or a previously stored calibration has better
heading accuracies.
Figure 10-16: Results Rejected
10.5.3
Heading Offset Adjustment
10.5.3.1
Heading Offset Adjustment
When the calibration routine is complete and the results have been accepted the CAL
HDG value will be displayed.
Figure 10-17: Calibration Heading Before Adjustment
Position the aircraft so that it is at a heading of 30º as verified by a sight compass or
other calibrated means. Press the line select key next to “HDG SEL” and then turn the
right knob until HDG SEL: 030º is displayed. Now press the line select key next to “HDG
ADJ” and turn the right knob until the CAL HDG of Figure 10-17 displays exactly 030.0º
as shown in Figure 10-18 or as close to 030º as possible within a ±4º tolerance. The
MAGNETOMETER CALIBRATION
ACCEPTED
MAGNETOMETER CALIBRATION
REJECTED
MAGNETOMETER CALIBRATION
CAL HDG: 032.7º