AiM MyChron3 Basic - Manual (Page 49)

49
Channels settings
Clicking on the Channels pushbutton it will appear the following screenshot:
The only configurable channel is the RPM one: to configure this channel it is
necessary to click twice in the box corresponding to the RPM row and the
Param. 1 column. On your PC’s monitor it will appear the following screenshot,
in which you can set both the Sparks for revs ( see page 28 ) and Maximum
RPM value ( see page 27 )