Kev ceev faj kom tsis txhob muaj teeb meem multimeter
1. Feem ntau, kev puas tsuaj ntawm digital multimeter yog tshwm sim los ntawm qhov ntsuas qhov tsis raug. Piv txwv li, thaum ntsuas AC mains, qhov ntsuas qhov ntsuas tau raug xaiv los muab tso rau hauv qhov hluav taws xob thaiv. Nyob rau hauv cov ntaub ntawv no, ib zaug lub xeem cwj mem kov lub mains, nws yuav tshwm sim instantly. Cov khoom siv sab hauv ntawm multimeter puas lawm. Yog li ntawd, ua ntej siv lub multimeter los ntsuas, nco ntsoov xyuas seb qhov ntsuas iav puas yog. Tom qab siv, teeb tsa qhov kev ntsuas ntsuas rau AC 750V lossis DC 1000V, yog li tsis muaj teeb meem dab tsi tsis raug ntsuas hauv kev ntsuas tom ntej, nws yuav tsis ua rau muaj kev puas tsuaj rau digital multimeter.
2. Qee qhov digital multimeters puas vim qhov ntsuas qhov ntsuas hluav taws xob thiab tam sim no tshaj qhov ntau. Piv txwv li, yog tias lub mains ntsuas ntawm AC 20V iav, nws yog ib qho yooj yim los ua kev puas tsuaj rau AC amplifier Circuit Court ntawm cov multimeter, thiab lub multimeter poob AC ntsuas muaj nuj nqi. Thaum ntsuas qhov hluav taws xob DC, yog tias ntsuas qhov ntsuas hluav taws xob tshaj qhov ntsuas qhov ntsuas, nws kuj yog ib qho yooj yim ua rau tsis ua hauj lwm hauv Circuit Court. Thaum ntsuas qhov tam sim no, yog tias tus nqi tam sim no tshaj qhov ntau, feem ntau tsuas yog lub fuse hauv multimeter yuav raug tshuab, thiab tsis muaj lwm yam kev puas tsuaj yuav tshwm sim. Yog li ntawd, thaum ntsuas qhov ntsuas qhov ntsuas hluav taws xob, yog tias koj tsis paub qhov kwv yees ntawm qhov ntsuas qhov ntsuas hluav taws xob, koj yuav tsum xub teem lub ntsuas ntsuas mus rau qhov siab tshaj plaws iav, thiab tom qab ntawd hloov cov iav los ntsuas tom qab ntsuas nws tus nqi kom tau txais qhov tseeb ntau dua. Yog hais tias tus nqi hluav taws xob yuav tsum tau ntsuas nyob deb tshaj qhov siab tshaj plaws uas lub multimeter tuaj yeem ntsuas tau, nws yuav tsum tau nruab nrog lub ntsuas ntsuas siab.
3. Lub sab sauv ntawm DC voltage ntawm feem ntau digital multimeters yog 1000V, thiab sab sauv ntawm AC voltage yog 750V. Yog li ntawd, qhov ntsuas qhov siab tshaj plaws ntawm qhov ntsuas hluav taws xob yog qis dua qhov nruab nrab ntawm qhov multimeter, thiab feem ntau lub multimeter yuav tsis puas. Yog hais tias lub sab sauv ntawm lub multimeter yog ntau tshaj, nws yuav ua rau kev puas tsuaj rau lub multimeter.
4. Tsis txhob ntsuas qhov hluav taws xob hauv cov ntaub ntawv tam sim no, cov ntaub ntawv tiv thaiv, cov ntaub ntawv diode thiab cov ntaub ntawv buzzer. Thaum lub ntsuas ntsuas tau raug kuaj, qhov hloov pauv tsis tuaj yeem tig, tshwj xeeb tshaj yog thaum qhov hluav taws xob siab thiab qhov tam sim no siab.
5. Yog tias koj siv multimeter los xyuas qhov zoo ntawm cov khoom lossis ntsuas qhov tsis kam ntawm cov khoom hauv Circuit Court, lub Circuit Court tsis raug tso cai kom them, vim hais tias lub multimeter siv lub roj teeb sab hauv ntawm multimeter ua haujlwm. Yog tias qhov hluav taws xob raug them, nws yooj yim rau kev puas tsuaj rau lub roj teeb sab hauv ntawm lub multimeter. Nws yuav cuam tshuam qhov tseeb ntawm qhov ntsuas. Yog hais tias lub multimeter raug thaiv los ntawm kev tuav pov hwm, nws yooj yim rau kev puas tsuaj rau qhov sib npaug ntawm cov hluav taws xob thaiv.
6. Thaum lub cim roj teeb tshwm rau ntawm qhov screen, nws txhais tau hais tias lub roj teeb qis thiab lub roj teeb yuav tsum tau hloov. Tom qab txhua qhov ntsuas, lub 'meter' yuav tsum muab tua. Txawm hais tias siv lossis khaws cia, cov dej noo thiab dej yog txwv tsis pub.
