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Leader Oscilloscope Instructions

Electricity is due to the flow of charged particles known as electrons. There are two main types of electricity and these carry an alternating current (AC) and direct current (DC). A DC operates at constant voltage and does not vary in time whereas an AC has an oscillatory time dependence of voltage. The visualization of such time dependent signals can be difficult but can be achieved with a Leader oscilloscope. This is a device which has one or more electrical inputs, a variety of controls, and a screen which displays the electrical signal.

Things You'll Need

Leader oscilloscope
Coaxial cable

Instructions

- 1
  Plug the coaxial cable with the electrical signal into one of the inputs on the front of the oscilloscope. Depending upon the exact model there may be up to three inputs. These are labelled "CH 1," "CH 2" and "CH 3."
- 2
  Switch on the oscilloscope by pressing the power button on the bottom left-hand side of the unit.
- 3
  Switch on the input the coaxial cable is plugged into. This can be achieved by pressing one of the input buttons to the right of the screen. These are labelled "CH 1," "CH 2" and "CH 3."
- 4
  Adjust the Volts/Div (voltage) knob. This changes the vertical scale of the screen and the number of volts each division represents. The signal should appear on the screen when the correct voltage setting is obtained.
- 5
  Adjust the Time/Div (timebase) knob. This changes the horizontal scale and the amount of time each division represents. The signal should now be seen clearly on the screen. If an AC signal is being measured, an oscillatory waveform should be seen. If it is not seen, adjust the vertical position knob to move the waveform into the center of the screen.

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