An ammeter is a device used to measure electric current in units of amperes (A). It measures the flow of electric charge in a circuit.
To test an ammeter, you will need a power source, a known load (such as a resistor), and a multimeter set to measure current. Connect the ammeter in series with the load and power source, and then compare the reading on the ammeter to the reading on the multimeter. The readings should be close to each other for the ammeter to be considered accurate.
The 24V DC rating indicates that this ammeter can accurately measure current in a circuit with a maximum voltage of 24 volts. The 100A rating indicates that it can handle a maximum current of 100 amperes without damage.
No, this ammeter is specifically designed for DC circuits. Using it for AC circuits can result in inaccurate readings and potential damage to the ammeter.
The ammeter will display the current in amperes (A) flowing through the circuit. Make sure to take note of the unit and the decimal place to accurately interpret the reading.