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It depends on the meter. Generally they test amperage, voltage and resistance. Some also test diodes and and various other electrical properties.
How it is done is called electrical theory and is far too large a subject to cover here.
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∙ 13y ago
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What are the black and red things hanging off a multimeter?
They are called test leads, you would use them to connect the multimeter to the points that are to be tested.
How do you correctly test if a circuit is not live?
Use a multimeter and test if there is a voltage drop or current over the wire circuit.
Where could one purchase some Multimeter Test Leads?
Multimeter test leads can be purchased at specialty stores like Radio Shack or some larger hardware stores. They can also be found online at Amazon and eBay.
How do you test a thyristor module using multimeter?
You can check if it is shorted, but without coordinating the gate and anode voltages with the cathode, you cannot test a thyrister (SCR) with a multimeter. Check it out of circuit for shorts, then check the circuit, then test it in operation. Anything more advanced will require an oscilloscope.
How do you test a good and working contactor?
A contactor is tested by using a device called a Multimeter. By setting the multimeter to ohms and rx1 you can clip both prongs to the coil. If the multinmeter moves the contactor is good. If it doesnt move its bad.
Is it possible to test a diode with multimeter?
Yes it is possible to test a diode with a multimeter.
How can you test a battery?
You can test a battery by using multimeter. Set the multimeter to the DC voltmeter setting and then place the leads of the multimeter across the leads of the battery. the multimeter will have a readout of the voltage.
How do you test an abs sensor?
To test an abs sensor for a Lexus ES you will need to use a multimeter. The multimeter will determine if the abs sensor works or not.
Why does your 120 outlet measure 49 volts when you test it with a multimeter?
Either the supply or the multimeter is faulty.
What is the purpose of an automotive multimeter?
An automotive multimeter, like any multimeter, can be used to test the voltage or current in some kind of circuit. As it is an automotive multimeter it is aimed more towards the used in a car.
How do you test a battery in a Motorola cell phone?
Take the battery out and test it with a multimeter.
How do you test a ballast resistor?
ohm the resister with a multimeter
How do you test electronic circuit board components?
By using a multimeter
What are the black and red things hanging off a multimeter?
They are called test leads, you would use them to connect the multimeter to the points that are to be tested.
How do you test a ignition coil with circuit diagram?
You cannot test it with a diagram. You will need a multimeter to test the coil. Click the link.
What tool can be used to test voltage resistance and amperage in a circuit?
A multimeter.
When measuring voltage how should test probes be connected?
First connect the positive terminal of the voltage line to positive terminal of multimeter and negative to negative terminal of multimeter. Select voltage in multimeter and measure the voltage
