It is relatively easy to measure amps to determine the amount of power an appliance or load uses, but the measurement must be done accurately to avoid damaging your multimeter. Multiplying the voltage in a circuit, with the current flowing in the circuit, will give us the total power in the...
Read the amperage draw your AC motor requires, if it's operating according to the manufacturer's specification. The amperes are on the label on the AC motor. Step 2 Set your multimeter to measure amperes. Set it to the correct ampere range for the AC motor you're checking. For example,...
Before you proceed to measure the current with a multimeter, it is wise to have a rough estimate of the current that will be measured. This is required because the red probe needs to be connected to the correct port of the multimeter. To estimate, look for the specifications of the compon...
Switch off the motor, and then disconnect one of the wires powering the motor. Attach your ammeter or digital multimeter set to measure DC current; attach it between the motor and the detached wire. Always wire ammeters in series with a circuit, placing them between the power source and the...
Set the ohmmeter to measure resistance in the 20 K ohm range; "K" stands for kilo, which means thousand. If you have a multimeter, turn its dial to the 20 K ohm scale, and insert its red lead in the common jack and its black lead in the jack marked with the ohm symbol. ...
Amps measure the strength of the electromagnetic force resulting from charged particles (electrons) moving from one point to another within a conductor or from one conductive material to another. The amperage unit is named after André-Marie Ampère, a French physicist who helped develop electromagneti...
Measure the alternator amperes output using your multimeter as before. The reading is near the maximum amperes you made a note of earlier. If the reading is more than 15 percent below the maximum, check you've turned on as many item as possible. If you have, then you need to get the ...
How to use a digital multimeter or DMM to measure voltage. Here we demonstrate how to use both an older analog VOM (Volt-Ohm Meter) and how to use use a DMM (Digital Multi-Meter) to measure voltage levels in building electrical wiring and electrical service. We using several different typ...
How to Understand kW vs. Amps Kilowatts and amps are two different things. Kilowatts are a measure of power, whereas amps are a measure of electrical current. You can convert from kW to amps by using this formula: amps = kilowatts x 1000 ÷ volts. What Are Some Commonly Used Voltages...
How to Check a Cell Phone Battery Step 6 Set your ammeter in the range of amperes from Step 1. If you are using a multimeter, set it to measure amperes, and set the range. For example, if the battery is labeled 30 amperes, set your meter between 25 and 35 amperes. ...