how to test a diode by using a measuring instrument Avometer , most accurate
have you ever heard of object called a diode ? if you're a technician , surely you 've heard even tried to fix it. a tool that can convert AC current into DC current is . however , if you can measure object called diodes ? Can it? if you feel you can not, let's discuss together
DIODE TESTING BY OHM METER
It required an ohmmeter multitester or an analog / digital . Multitester or Avometer Analog has facilities measuring barrier ( ohmmeter ) where the type normally used ohm meter. ohmmeter - series , which is the construction of the polarity of the batteries installed in the meter opposite in polarity to the measuring terminal .
to test a diode by using Avometer , the principle is as follows :
- You must position Avometer position ohms with a low scale .
- Decide in advance the electrodes , the anode and cathode of the diode
- Connect the terminal + ( positive ) meter with the anode of the diode to be tested , while the terminal - ( negative ) meter with the cathode of the diode. ( This relationship is the reverse )
- In this position , if the diode is good, then the meter needle will not move . However , if it moves the needle in this position , it can be said shorted diode ( short-circuit ) .
- Repeat step 2 above with the opposite polarity . where the anode is connected to the negative meter , and with the positive cathode meters. ( This relationship is forward) .
- In this position , if the diode is good , then the meter needle will move . But if in this position the needle meter does not move , it can be said diode broke ( broken ) .
do these measurements on a diode which is considered damaged
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