EC120B Nr Speed Sensor
The EC120 has a main rotor rpm speed sensor mounted in the MRGB, it is a phonic wheel type system. Can anyone tell me if the output signal generated is a 1 pulse / rev signal, or is it a straight frequency / voltage output?
Also, does the phonic wheel have a master tooth, and if so what is the physical position of the main rotor when the master tooth is lined up with the sensor?