Spektrum SPM4010 DX4S - Manual (Page 19)

19 Spektrum DX4S • tranSmitter inStruction manual
EN
Telemetry
The Telemetry setting function is used to select a default screen for display, including Main, Telemetry or
Roll. It is also used to access the Telemetry SPEED, BATTERY and TEMPERATURE sensor settings.
To Access the Telemetry Setting function:
In the List screen, use the Rolling Selector to highlight Telemetry, then press the Rolling Selector. The
TELEMETRY screen will appear. To select the default screen, rotate the Rolling Selector to place the box
around Screen TELE, then press the Rolling Selector. The surrounding box will flash.
• TELE displays the Telemetry screen.
• MAIN (default) aways hides the Telemetry Screen.
• ROLL allows the roller to select between the Telemetry and Main screens.
Rotate the Rolling Selector and choose your desired default screen (TELE displays the Telemetry screen.
ROLL will allow the Rolling Selector to select between the Telemetry and Main Screens). Press the Rolling
Selector to select.
1. Use the Rolling Selector to select the sensor parameters to adjust.
2. Press the Rolling Selector and a surrounding box will flash.
3. Use the Rolling Selector to adjust the value, then press the Rolling Selector to select.
4. To return to the main screen, press and hold the Rolling Selector for more than three seconds.
Rx Battery: The Battery Alert setting allows you to preset a low voltage warning. When the battery voltage in your receiver drops
below the preset voltage, the transmitter will alert you.
Temp Unit: Display Temperature Unit in degree Fahrenheit or Celsius.
Upper: The Upper value is the maximum range of the temperature scale.
Alert: The alert warning activates when the temperature sensor recognizes the set value, for example, when a nitro engine reaches
280 degrees Fahrenheit.
Lower: The Lower value is the minimum range of the temperature scale.
The Telemetry screen displays the maximum achieved temperature from the point that the receiver was turned on. To reset the maxi-
mum recorded temperature, it is necessary to power OFF the receiver, then power it ON.
Sp. Unit: Select RPM, MPH or KM/H display units.
Zoom: The Zoom setting sets the maximum range or boundary of the Speed unit.
Roll Out: Roll out appears when you assign the MPH or KM/H Speed Unit. A Roll Out value (conversion factor) is required to
display the value in MPH or KM/H. When the Roll Out value is 1.0’ (default), the value displayed on the main screen and stored in
maximum speed is the rpm of the spur gear or flywheel triggering the RPM Sensor. To calculate the Roll Out value, use one of the
following methods:
Method A (Nitro or Gas Vehicles):
1. Put a small reference mark on the flywheel. A black or silver permanent marker works well.
2. Put the car next to a ruler and align the front of the car with the 0 mark. Use your hand to roll the car forward while counting each
revolution of the reference mark. At exactly 10 revolutions, stop the car.
3. Measure the exact total distance that the car traveled and divide this distance by 10. For example, 12.0” divided by 10 = 1.20”.
4. Adjust the Roll Out value on the transmitter until 1.20 appears on the screen. Now all rpm-related functions will appear in mph or
km/h.
Method B (Electric Vehicles): For this method you either need to know the internal gear ratio (normally provided in the vehicle’s
manual) or be able to calculate the ratio via the number of teeth on the gears. It is also necessary to calculate the circumference
of the tire. Once the internal ratio is known, and the circumference in inches has been determined, simply divide the circumfer-
ence by the internal ratio and use this value as the conversion.
To calculate the circumference—multiply 3.14 by the tire diameter (in inches).
To calculate the internal gear ratio—divide the larger transmission gear by the smaller gear. With multiple gear transmissions it is
necessary to multiply each of the larger to smaller gear reduction ratios to arrive at the final ratio.
The Telemetry screen displays the maximum recorded speed from the point that the receiver was turned on. To reset the maxi-
mum recorded speed, it is necessary to power OFF the receiver, then power it ON.
Use of telemetry functions require a telemetry-compatible receiver (Sold Separately).