Wednesday 23 December 2015

Testing milliamps with a multimeter

If it has a Battery Test feature, use it before proceeding further, and replace the battery if it fails the test. Check the two test leads and probes for damage, . Determine the amperage rating for your digital multimeter. Your Multimeters Millivolt scale can be used to locate shorts to ground.


What if the amperage you need to test exceeds the rating of the meters cables?

The selection knob allows the user to set the multimeter to read different things such as milliamps ( mA ) of current, voltage (V) and resistance (Ω).

This video will clearly explain how to measure the 4-20mA in multimeter without blowing fuse.

What are Volts, Amps, Watts, and Ohms presented by Katie Nyberg for Galco TV. A multimeter is used to measure the current drawn by. This multimeter is able to measure current.


There are several ways to perform this task. Remove the jumper wire that connects the two terminal strips. The exact function of the diode check can be different on different multimeters. A , µA ( milliamps , microamps).


Current measurements of frequency and duty cycle. Plug the ground probe into the COM socket and plug the red positive probe lead either into the mA socket or the high current socket which is usually . In my example my Multimeter low setting is 0. Once the multimeter is on Amps do not connect it directly across the battery and do not hit the starter button while testing for current Amps. This will cause the internal fuse in the multimeter to blow! These units are commonly used by professional electricians as well as hobbyists, and they can be purchased from retail stores such as Radio Shack.


When measuring voltage or resistance, the red probe goes into the port with the smallest current label (often mA for milliamps ). Switch off the electricity, set the multimeter to test volts and check the circuit. Proceed only when you are certain that there is no power in the circuit. Connecting LED directly to the power supply will damage it, hence aresistance of suitable value must be connected in series for its proper operation. Following the standard color convention,red wire serves as the positive connection .

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