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What does 10A mean on a multimeter?
10A is the special port used when measuring large currents (greater than 200mA). mAVΩ is the port that the red probe is conventionally plugged in to. This port allows the measurement of current (up to 200mA), voltage (V), and resistance (Ω).
What setting do I put my multimeter on to test?
You have to set the multimeter to a range that it can measure. For example, 2V measures voltages up to 2 volts, and 20V measures voltages up to 20 volts. So if you’ve measuring a 12V battery, use the 20V setting.
Why are the 10A inputs on many multimeters unfused?
Why are the 10A inputs on many multimeters unfused? Most multimeters have a current measurement setting for low currents where a fuse is present. However, to measure high currents up to 10A, you need to use a second input that is often unfused.
What happens when you put a multimeter in current measurement mode?
Therefore, consider what happens when you put a multimeter set to current measurement mode in parallel with a device hooked up to a voltage source. Because the multimeter has a very small resistance (much less than 1 Ohm), whatever current the voltage source can supply will go through your multimeter, while none will go through the lamp.
What’s the second highest setting on a multimeter?
The second-highest setting on my MM is 200mA, so I thought that 250mA would blow the fuse on the meter. Hence my thinking that I should go to a higher setting. In order to measure current, your measurement device must have that current flowing through it.
What happens if my multimeter goes out of Spec?
Note that this current is not typically the normal operating current of the lamp, and is usually much higher, and potentially out of spec for both your meter and the power supply. Therefore, you run the risk of destroying your power supply or destroying your multimeter (or at least blowing a fuse in either).