Cov txheej txheem, cov kauj ruam, thiab cov txheej txheem ua haujlwm rau AC Voltage Measurement nrog Multimeter
Txoj kev ntsuas ntawm AC voltage
1. Ntxig qhov kev sojntsuam dub rau hauv COM lub qhov (socket) thiab lub qhov (socket) liab rau hauv V/Ω socket.
2. Muab qhov hloov pauv ua haujlwm nyob rau hauv AC voltage ntau ntawm V ~ ntau, thiab txuas tus cwj mem mus rau lub hwj huam mov los yog thauj khoom mus kuaj.
3. Thaum ntsuas AC voltage, tsis muaj polarity zaub.
4. Txawm hais tias ntsuas AC lossis DC voltage, kev nyab xeeb ntawm tus kheej yuav tsum raug coj mus rau hauv tus account thiab cov hlau ib feem ntawm qhov kev sojntsuam yuav tsum tsis txhob kov ib yam nkaus.
Piv txwv li, thaum ntsuas AC 220V, tig qhov hloov mus rau qhov xav tau qhov hluav taws xob ntau (thaum ntsuas AC 220V, qhov hloov yuav tsum tig mus rau AC 750V).
Thaum ntsuas, tus cwj mem xeem yuav tsum tau txuas mus rau qhov sib npaug ntawm qhov ntsuas hluav taws xob. Yog tias koj tsis paub qhov ntau ntawm qhov ntsuas qhov ntsuas hluav taws xob, koj tuaj yeem ua ntej siv qhov txwv loj dua los ntsuas qhov kwv yees tus nqi, thiab tom qab ntawd hloov mus rau qhov ntsuas qhov ntsuas.
Cov lus qhia ua haujlwm
1. Xaiv lub AC voltage iav, thiab thaum qhov hluav taws xob ntau yam tsis paub, pib ntawm qhov siab tshaj plaws.
2. Lub rooj yuav tsum tau txuas mus rau qhov sib npaug ntawm ob qho kawg ntawm qhov ntsuas hluav taws xob lossis cov khoom siv.
3, Ntsuas cov kauj ruam rau AC voltage
Kauj ruam 1: Qhib lub hwj chim hloov ntawm lub multimeter digital thiab tig lub multimeter mus rau AC voltage ntau ntawm 750V.
Kauj Ruam 2: Qhib lub hwj chim hloov hauv Circuit Court.
Kauj Ruam 3: Ntsuas qhov hluav taws xob ntawm cov ntsiab lus 1-2, sau cov ntawv nyeem, thiab qhov ntsuas hluav taws xob yog ntsuas li 220V.
Kauj ruam 4: Tig lub multimeter mus rau AC voltage ntau ntawm 20V, ntsuas qhov voltage ntawm cov ntsiab lus 3-4, 4-5, thiab 6-7, thiab sau cov ntawv nyeem.
(1) Qhov voltage ntsuas ntawm cov ntsiab lus 3-4 yog 10V.
(2) Qhov voltage ntsuas ntawm cov ntsiab lus 4-5 yog 10V.
(3) Qhov voltage ntsuas ntawm cov ntsiab lus 6-7 yog 6.2V.
