Spektrum SPM1300 - Manual (Page 18)

18 SPEKTRUM TELEMETRY
RPM/Speed Sensor (Electric)
In electric cars and trucks, the rpm sensor is mounted near the spur
gear and gets rpm readings directly from that gear. A conversion in the
handheld can be programmed to give speed in mph or rpm. See the
Handheld Unit section on rpm and speed for more details. A mount is
provided that allows the rpm sensor to be conveniently mounted in many
applications. Because of the diverse types of electric vehicles, it may be
necessary to fabricate a mount from Lexan for some types of vehicles.
RPM/Speed Sensor Installation (Electric)
• Determine the best method to mount the sensor near the spur
gear. The face of the sensor must face the side of the gear.
A mount is provided that can be taped in place using servo
tape then bent to allow installation in most applications.
• Mount the rpm sensor such that the sensor
is 1/8" from the side of the gear.
• If the gear is non-reflective, place a reflective decal on the gear
so it passes between the sensor and the flywheel when rotated.
If the gear is reflective, place a flat black decal on the gear so
it passes between the sensor and the gear when rotated.
• Plug the sensor into the R (speed/rpm) port in the telemetry module.