How To Use an Analog Multimeter

How to Use an Analog Multimeter on AC


Analog multimeters performs the same function as digital multimeters, but the analog part of the description refers to how the information the multimeter measures is presented to the user. In a digital multimeter, the meter displays numbers on a display. For an analog multimeter, the information is presented as deflection of a needle across a dial face. Properly reading the numbers on the dial face behind the deflected needle is essential in obtaining an accurate measurement of the alternating current (AC) voltage.

Difficulty:
Moderately Easy

Instructions
things you'll need:

* Probes

1.
* 1

Connect your probes to your analog multimeter. Probes are color coded and match the colors on the input jacks. The banana plugs at the end of the probes go into the jacks. Plug the black banana jack into the common jack and the red banana plug into the positive jack. Make sure the jacks are labeled for voltage measurements.
* 2

Turn on your multimeter and turn the range dial to the correct setting for AC measurements. For measuring AC voltage, the range will be the 120 range. Some models do not have a 120 setting. If that's the case, select the next highest range. The range is the uppermost measurement that can be made at that setting.
* 3

Touch the probes to the AC voltage source you're attempting to measure. Make sure your hands stay on the insulated parts of the probes and you don't touch any metal.
* 4

Determine the number behind the deflected needle. The number is the AC voltage that the probes are measuring. Some analog multimeters have strips of mirror behind the needle. This is to guard against parallax error, which occurs when you're not viewing the needle from directly above it. Align the needle and the needle's reflection so that the reflection is hidden by the needle and you'll know you're viewing the needle from directly above.
* 5

Remove the probes from the AC voltage source and turn off the multimeter. Write down the voltage measurement if you're concerned about forgetting the reading.

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Read more: How to Use an Analog Multimeter on AC | eHow.com http://www.ehow.com/how_4896850_use-analog-multimeter-ac.html#ixzz1MKMI0DQB

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