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Thursday, 15 September 2016

How to use Multimeter




Multimeter is a clever device to measure electronic and electrical components. This multi meter allows you to check components in easy way to check the value of current,resistance,voltage,farad and so on. To check electrical and electronic components need some skill and knowledge about to use multi meter. Well if you are noob how to use multi meter!!, let learn how to use it.

Before learn how to use multimeter, lets know the parts of multi meter.
 

Parts of Multimeter : 

1) Positive and Negative probe : To give conductivity to electrical and electronic components.

2) Zero Ohm Adjuster : Adjust the needle of multi meter to zero for get accurate value.

3) Range : Contain range of AC and DC voltage,Resistance, current,and farad to select the value of electrical and electronic component.

4) Scale : Contain range of AC and DC voltage,Resistance, current,and farad to get the accurate value of electrical and electronic components.

Now we know all the parts of multi meter and the function, Now lets get started to learn how to use multimeter.

a) Check continuity and resistance of electrical and electronic components.

1) First adjust the needle to zero '0' by using zero ohm adjuster while have contact with positive and negative probe .


2) Select any range of resistance to check continuity. There's range of resistance X1,X10,X100,X1K, and X10K. 

3) Now place the positive probe to one end of the wire and place negative probe to another end of the wire. 


4) Now you will observe that the needle will deflect to the zero. It's mean the wire has continuity.

b) Check Voltage of AC and DC

1) First adjust the needle to zero '0' by using zero ohm adjuster while have contact with positive and negative probe .

2) Select of any range of AC to check the voltage. There's range of AC voltage of 10V,50V,250V and 1000V

3) Now place the positive probe to live and negative probe to neutral.

4) Now you will observe the needle will deflect to the accurate value of AC voltage.

5) For DC select the range between 50μA,2.5A,25A and 250A.

6) Place the positive probe at positive terminal of battery and negative probe to negative terminal.

7) Now you will observe the needle will deflect to the accurate value of DC voltage. 

8) For DC current value, you need to change the range to DCmA
9) While the positive and negative probe place at the battery terminal, the needle will show the accurate value of DC current in the scale.

  

 

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