Tachometer: Testing and Inspection

1. Connect a flux-type engine speedometer.
2. Compare the readings of the engine speedometer and the tachometer at every engine speed, and check if the variations are within the standard values.

STANDARD VALUE

Engine speed Indicated variation
1000 rpm ± 100 rpm
3000 rpm ± 150 rpm
5000 rpm ± 250 rpm
6000 rpm ± 300 rpm