AvMap A2 ADAHRS - Manual (Page 10)

10 - User and Installation Manual
AvMap A 2 ADAHRS
User and Installation Manual - 11
AvMap A 2 ADAHRS
4. System Calibration
Overview
The purpose of AvMap EFIS calibration procedure is to properly setup the system and to adapt
it to the installation environment.
There are two different types of calibration procedures:
1. Attitude calibration: compensates for non-standard installation attitude (required for
scenario B and C mentioned in Chapter 3).
2. Compass calibration: to compensate for any magnetic interference that could alter the
reading of the internal magnetometer (required in all Scenarios, A, B and C, mentioned in
Chapter 3).
The attitude calibration can be performed in three ways:
• Scenario A. No attitude calibration: if unit is aligned with aircraft axis
• Scenario B. Horizon Alignment: to compensate for pitch and roll offsets only
• Scenario C. Full Attitude Calibration: to compensate for pitch, roll and yaw offset between
A2 and aircraft
Note: Compass calibration is required in any case.
Note: Make sure the A2 module is connected to the EKP V to be able to access the EFIS menu
from the EKP V device. All EFIS calibration functions are available in MENU > TOOLS > EFIS
(see Figure 2).
Full Attitude calibration
The procedure needs to be performed on the ground to determine the offset in pitch, roll and yaw
between A2 installation attitude and the aircraft, and requires the user to set the aircraft in straight
and level flight attitude (use blocks or jacks) whereafter a pitch up (or down) maneuver as wide
as possible needs to be executed (see Figure 7).
Level & Straight
Flight Attitude
Pitch Up Pitch Down
Figure 7