Yuav ua li cas tiv thaiv tus pointer ntawm ib tug multimeter ntawm dabtsi yog khoov thiab lub taub hau los ntawm hlawv tawm
Thaum siv multimeter, kev ua haujlwm tsis raug yuav khoov tus taw tes, thiab hauv qhov xwm txheej hnyav, lub taub hau ntsuas yuav raug hlawv.
Txhawm rau tiv thaiv cov xwm txheej zoo li no tshwm sim, yuav tsum tau ceev faj hauv qab no thaum siv multimeter:
1) Ua ntej ntsuas, kwv yees qhov loj ntawm cov khoom ntsuas thiab tig qhov hloov mus rau qhov tsim nyog.
Yog tias koj tsis paub meej txog qhov ntsuas qhov loj me, koj tuaj yeem ua ntej teeb tsa rau qhov siab tshaj plaws thiab tom qab ntawd maj mam txav mus ze rau qhov tsim nyog.
Nco ntsoov tias thaum ntsuas cov khoom loj nrog qhov me me, nws muaj peev xwm khoov tus pointer.
2) Thaum ntsuas qhov tsis kam, qhov ntsuas hluav taws xob yuav tsum raug txiav tawm ntawm lub zog hluav taws xob.
3) Thaum kuaj high voltage lossis siab tam sim no, nws yog txwv tsis pub tig qhov hloov pauv. Txhawm rau tiv thaiv arcing ntawm cov neeg sib cuag thiab kev puas tsuaj rau qhov hloov.
4) Thaum ntsuas Electrolytic capacitor, ua ntej tso tawm tom qab luv luv Circuit Court, thiab tom qab ntawd ntsuas nws.
5) Thaum siv multimeter tsis raug, lub taub hau meter yuav raug hlawv.
Kev tiv thaiv kev tiv thaiv: Ob lub silicon diodes txuas mus rau qhov sib npaug ntawm qhov zoo thiab qhov tsis zoo ntawm lub taub hau 'meter' rau kev tiv thaiv (ib qho nyob rau hauv pem hauv ntej parallel thiab ib qho rov qab ua ke).
Qhov hluav taws xob conduction ntawm silicon diodes feem ntau yog ntau dua {{0}}}.5V, thiab qis dua 0.5V, lub zog pem hauv ntej ntawm silicon diodes yog qhov loj, uas muaj qhov cuam tshuam me me rau ntawm qhov tseem ceeb sab hauv ntawm lub meter taub hau. thiab tuaj yeem tsis quav ntsej.
Thaum ntsuas qhov tsis zoo, qhov nce ntawm qhov hluav taws xob yuav ua rau txo qis rau pem hauv ntej tsis kam ntawm silicon diode, thiab feem ntau ntawm cov tam sim no yuav raug hloov los ntawm diode los tiv thaiv lub taub hau meter.
