82011-ICUG Rev G
SG102 AHRS Installation/Calibration Utility
10
7 Pre-Cal Procedure (MT102 Unmounted)
7.1
Make the MT102 Free Field Measurement
This step is performed after the SG102 is installed but prior to final mounting of
MT102. It is an off-aircraft measurement of the local magnetic field that is made using
the Maintenance Extension Cable.
Note:
The MT102 may be connected/disconnected with the SG102 power on.
1)
Attached the MT102 extension cable.
2)
Place the MT102 on a level surface away from the aircraft, stray magnetic fields,
concrete rebar, etc. For instance, the MT102 may be placed on a board laid across
the top of a large plastic bin, cardboard box, or any suitable non magnetic surface.
The MT102 must be level at a height of approximately 3’ off the ground or
higher.
3)
Click the “Execute” button.
4)
After the measurement has been made, the data will be displayed.
