Yuav ua li cas ntsuas voltage nrog digital multimeter
Ua ntej, ntsuas qhov DC voltage
1. Ntxig cov hlau lead kuaj dub rau hauv COM jack thiab cov hlau kuaj liab rau hauv V / Ω jack.
2. Muab qhov hloov pauv ua haujlwm nyob rau hauv DC voltage ntau V-ntau, thiab txuas cov kev xeem coj mus rau cov khoom siv hluav taws xob uas yuav tsum tau kuaj (los ntsuas qhov qhib hluav taws xob hluav taws xob) lossis cov khoom thauj (los ntsuas qhov voltage poob ntawm lub load). Lub polarity ntawm cov hlau lead liab yuav tshwm sim tib lub sijhawm. ntawm qhov screen.
Daim ntawv ceeb toom:
1. Yog tias koj tsis paub qhov voltage ntau nyob rau hauv kev sim, teeb tsa lub zog hloov mus rau qhov siab tshaj plaws thiab maj mam txo nws.
2. Yog hais tias cov zaub tsuas yog qhia "1", nws txhais tau hais tias tshaj-ntau, thiab kev ua haujlwm hloov yuav tsum tau teem rau ntau dua.
3. "" txhais tau hais tias tsis ntsuas qhov voltages siab tshaj 1000V, nws muaj peev xwm ua kom pom cov nqi hluav taws xob ntau dua, tab sis muaj kev pheej hmoo ntawm kev puas tsuaj rau cov hluav taws xob sab hauv.
4. Thaum ntsuas qhov hluav taws xob siab, ua tib zoo saib xyuas kom tsis txhob muaj hluav taws xob poob siab.
Qhov thib ob, ntsuas qhov AC voltage
1. Ntxig cov hlau lead kuaj dub rau hauv COM jack thiab cov hlau kuaj liab rau hauv V / Ω jack.
2. Teem lub luag haujlwm hloov mus rau AC voltage ntau V ~ ntau, thiab txuas tus cwj mem mus rau lub hwj huam mov los yog thauj khoom mus kuaj. Daim duab kab ntawv sib txuas yog tib yam li saum toj no. Thaum ntsuas AC voltage, tsis muaj polarity zaub.
Cov kev ceev faj:
1. Saib DC Voltage Note 1.2.4.
2. "" txhais tau hais tias tsis txhob tso qhov hluav taws xob ntau dua 700Vrms, nws tuaj yeem ua rau pom qhov muaj txiaj ntsig ntau dua, tab sis muaj kev pheej hmoo ntawm kev puas tsuaj rau hauv Circuit Court.
