How to Use an Analog Circuit Tester

If you are performing home electrical work or are just curious whether a particular circuit is working, you may want to use an analog circuit tester. Analog circuit testers come in a wide variety of different models, some of which just use a light bulb to indicate the circuit is working, while others have a non digital display showing the actual voltage being given off.

Difficulty: Moderately Easy

Instructions

1. Find the circuit you would like to test. This can be anything from an electrical outlet to a running circuit in a car.

2. Turn off the power switch, if possible (such as light switches).

3. Place the first metal probe against the ground. For a circuit in a car or light switch, press this against any piece of metal not connected to the circuit. If you are testing a power outlet, insert the probe into one of the holes of the outlet.

4. Hold the second probe against the terminal screws or positive charge. If using an analog circuit tester with a light bulb, the bulb should light if the circuit is functioning properly. If there is a meter reading, the analog meter will display the amount of voltage being used.

5. Disable the power to the circuit if you are looking to perform electrical work. Find the power on the circuit breaker and power down, then test again to make sure the light bulb does not come back on. This insures you are free from electrical surges while working on the electrical system.

References

• Use Circiut Tester