Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm multimeter kuj
1, iav hloov: txav mus rau ohm iav xav tau iav (los yog los ntawm kev sim loj mus rau me me).
2, pointer xoom: ob tus cwj mem luv luv, kho qhov xoom pob, kom tus pointer taw tes rau xoom txoj hauj lwm.
3, txawm tias txais tos tsis kam ntsuas: dial resistance scale nyeem, multiplied los ntawm lub iav hloov lub sij hawm, cov khoom yog tus nqi kuj. Pointer nyob rau hauv nruab nrab ntawm qhov tseeb dua, koj tuaj yeem hloov qhov kev xeem.
4, ob txhais tes tsis txhob kov qhov tsis kam, txo qhov kev ntsuas qhov yuam kev. Tom qab kev ntsuas ntawm lub multimeter iav mus rau qhov siab tshaj AC voltage, los yog disconnect iav.
Cov ntaub ntawv nthuav dav:
Multimeter tau muab faib ua cov tshuaj multimeter thiab digital multimeter, cov tshuaj multimeter yog cov pointer electromagnetic deflection hom, txhua zaus ua ntej siv cov kev xav tau rau kev siv tshuab zeroing, kev siv ntau cumbersome thiab tus naj npawb ntawm kev nyeem ntawv muaj cov ntsiab lus thiab tsis raug, thiab tam sim no muaj. tsis tshua siv; thiab digital multimeter tuaj yeem tso tawm ncaj qha digitally, yam tsis tau saib xyuas qhov ntsuas ntsuas, cov txiaj ntsig ntawm qhov tseeb dua, thiab tam sim no siv dav dua.
Multimeter ntsuas qhov tsis kam tiv thaiv tus nqi ntawm cov ntawv:
(1) nyob rau hauv kev siv lub multimeter yuav tsum tau nqa tawm ua ntej lub "mechanical zero", uas yog, nyob rau hauv tsis muaj kev ntsuas lub hwj chim, kom lub multimeter pointer nyob rau hauv txoj hauj lwm ntawm xoom voltage los yog xoom tam sim no.
(2) Nyob rau hauv tus txheej txheem ntawm kev siv lub multimeter, koj yuav tsum tsis txhob kov cov hlau ib feem ntawm tus cwj mem nrog koj txhais tes, thiaj li yuav xyuas kom meej qhov tseeb ntawm kev ntsuas ntawm ib sab tes, thiab xyuas kom meej tus kheej kev nyab xeeb ntawm qhov tod tes.
(3) Thaum ntsuas qee qhov hluav taws xob, koj tsis tuaj yeem hloov lub iav tib lub sijhawm ntsuas, tshwj xeeb tshaj yog thaum ntsuas qhov hluav taws xob siab lossis siab tam sim no. Txwv tsis pub, lub multimeter yuav raug puas tsuaj. Yog tias koj xav tau hloov lub zog, koj yuav tsum txiav lub ntsuas ntsuas ntsuas ua ntej thiab hloov lub zog ua ntej ntsuas.
(4) Thaum siv lub multimeter, nws yuav tsum tau muab tso rau kab rov tav kom tsis txhob ua yuam kev. Nyob rau tib lub sijhawm, nws yuav tsum tau sau tseg kom tsis txhob muaj kev cuam tshuam ntawm sab nraud magnetic teb ntawm multimeter.
