And Rx-462 Receiver Telemetry Connections - AIRTRONICS MT-S User Manual

MT- S
Telemetry System with Sanwa Synchronized Link Support
2.4GHZ FH4T RADIO SYSTEM USER'S GUIDE
RX-461 AND RX-462 RECEIVER TELEMETRY CONNECTIONS AND MOUNTING
When used with an Airtronics or Sanwa RX-461 or RX-462 2.4GHz FH4T Telemetry receiver (available separately), up to two
Temperature Sensors and an RPM Sensor (available separately) can be connected and installed in your model to view RPM,
Temperature and Receiver Voltage Telemetry Data on the MT-S transmitter's TELEMETRY screen.
IMPORTANT: The information in this section only pertains if you are using an Airtronics or Sanwa RX-461 or RX-462 2.4GHz
FH4T Telemetry receiver and associated Telemetry Sensors with your MT-S transmitter.
Overview:
The RX-461 and RX-462 receivers each feature two Temperature Sensor Inputs and one RPM Sensor Input, in addition to the
Voltage Sensor built into the receiver. Temperature and RPM Sensors can be installed into your model to give you Temperature
and RPM feedback in real-time displayed on the transmitter's TELEMETRY screen.
The range of the Telemetry System is approximately 260 feet (80 meters), although the range can vary based on many
environmental factors. Use the Telemetry Signal Indicator to determine the quality of the Telemetry Signal.
Connecting the Telemetry Sensors to the Receiver:
1) Carefully pry up and remove the plastic cover from over the Telemetry Sensor Input Ports on the receiver.
2) Plug the Telemetry Sensor(s) into their respective Input Ports in the receiver. The Temperature Sensor can be plugged into
either the TEMP1 or the TEMP2 Input Port and the RPM Sensor is plugged into the RPM Input Port. The Sensor Plugs are
indexed so they can be plugged in only one way.
Make sure to push the Sensor Plugs firmly
in place to ensure a good connection. When
routing Sensor Wires inside your model, be
careful that they cannot come into contact with
any moving parts. The Sensor Wires should be
securely mounted and protected against damage.
The Sensor Wires can be lengthened to suit your specific requirements by splicing similar gauge stranded wire of the
required length. For the best results, solder the spliced connections together and insulate the solder joints with heat-shrink
tubing. Install the dust covers included with your receiver to prevent dirt and debris from getting into any unused Input Ports.
Mounting the RPM Sensor:
The RPM Sensor uses infrared technology to record RPM data from a rotating part, such as a flywheel or a spur gear. One Black
and one White reflective decal is included that is attached to the rotating part so the Sensor Pickup can 'see' it.
1) Mount the RPM Sensor to an aluminum or ABS angled bracket, then mount the bracket to your model, making sure that it's
held securely in place. For optimal operation, the Sensor Pickup should be positioned approximately 1mm away from
the rotating part (flywheel, spur gear, pinion gear etc.)
2) Cut one of the two reflective decals included with the RPM Sensor into an ~2mm diameter and apply it to the rotating part,
so that as the part rotates, the reflective decal passes in Front of the Sensor Pickup. If the rotating part is metallic-colored
(silver, aluminum, chrome, etc.), use the Black reflective decal and if the rotating part is dark-colored (black, blue or
another dark color), use the White reflective decal.
IMPORTANT: When installed, it's important that the Sensor Pickup face the rotating part and that the reflective decal is
positioned so that it passes in Front of the Sensor Pickup. It's also important that the reflective decal contrasts with the
rotating part it's applied to and that the Sensor Pickup is mounted approximately 1mm away from the rotating part.
After installing the RPM Sensor and connecting it to your receiver, the RPM Sensor must be calibrated. For more
information, see the Changing the Ratio Value (Calibrating the RPM Sensor) section on pages 53 and 54.
64
Spur Gear or Other Rotating Part
Input Plug
~1mm
Reflective Decal
RPM Sensor
Angled Bracket
Sensor Pickup
Sensor Pickup
REFERENCE
Sensors
Sensor Pickup
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