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RPM (optional sensors, sold separately)

Two RPM sensors are available: SPMA9569 for nitro and gas engines, SPMA9558 for

brushless electric motors.

Engine RPM Sensor

The optional engine RPM sensor mounts inside the backplate of aircraft engines. The

sensor picks up the crankpin as the engine rotates giving accurate RPM. Additionally,

you can use this sensor as an RPM pickup on any rotating gear/collar or shaft that

has a steel setscrew or other magnetic metal by locating the sensor within 5mm of the

rotating steel object.

Note: On some engines you may need to space the sensor further away from the

backplate. The sensor picks up the crankpin only; on some engines if the sensor

is too close, it will not distinguish the crankpin from the crank weight.

Installation

Install the backplate sensor in the backplate referring to the photo above.

Install the connector into the RPM port in the TM1000.

Testing

Turn the transmitter and receiver on and scroll to the RPM telemetry screen.

Rotate the engine rapidly and the RPM should register on the screen.

 TheREDLEDontheTM1000indicatesthesensorispickingupproperly.

Youmayneedtoadjustthesensor’spositiontooptimizethepickup.Movethesensor

closer or farther away until you have a reliable RPM pickup.

Modellbau Lindinger GmbH e-Mail: office@lindinger.at www.lindinger.at

Spektrum TM1000 User Manual

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