AiM MyChron3 XG Log - Manual (Page 9)

The Speed sensor for CAR installations
MyChron 3 Plus/Gold/Gold XG is equipped with a speed sensor, which allows
the pilot to measure vehicle’s speed.
The wheel speed sensor for gear tooth belongs to the “non contact” devices and it
needs a ferrous metal trigger to pass the sensor face.
The instrument’s measure range is included between 0.5 and 2 mm: the optimum
sensing distance is 1 mm.
Optimum sensor performance is dependent on the following variables, which
must be considered in combination: trigger material, geometry and speed, sensor
trigger gap, magnetic material in close proximity. Please refer to the “Installing the
CAR speed sensor” paragraph for further information.
The speed sensor is supplied with an 80 mm long cable.
In the following drawing you can see the gear tooth speed sensor side view (on
the left) and a 3D view (on the right).
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