Kev ntsuas ceev ceev rau Pointer Multimeter
Multimeter yog ib qho cuab yeej siv tau zoo, yog tias tsis siv kom raug, tsis tsuas yog ua rau kev ntsuas tsis raug thiab yooj yim rau kev puas tsuaj. Txawm li cas los xij, tsuav yog peb paub siv cov multimeters thiab ceev faj, ceev faj, ces lub multimeter tuaj yeem ua tau ntev. Kev siv multimeter yuav tsum tau them sai sai rau cov teeb meem hauv qab no:
(1) Kev ntsuas tam sim no thiab voltage tsis tuaj yeem tig lub iav tsis raug. Yog tias koj yuam kev tiv thaiv thaiv lossis thaiv tam sim no los ntsuas qhov hluav taws xob, nws yooj yim rau hlawv lub ntsuas. Thaum lub multimeter tsis siv, tig lub thaiv mus rau AC voltage thaiv kom tsis txhob muaj kev puas tsuaj vim kev siv tsis raug.
(2) Thaum ntsuas DC voltage thiab DC tam sim no, xyuam xim rau qhov "+" "-" xwm, tsis txhob txuas qhov tsis ncaj ncees lawm. Yog tias koj pom tus taw tes rau ntawm qhov thim rov qab, ob qho tib si yuav tsum tau hloov tam sim ntawd mus rau lub meter stick, thiaj li tsis ua kom tus taw tes thiab lub taub hau puas.
(3) Yog tias koj tsis paub qhov loj ntawm qhov ntsuas qhov ntsuas hluav taws xob lossis qhov tam sim no, koj yuav tsum xub siv qhov thaiv, thiab tom qab ntawd xaiv cov iav tsim nyog los kuaj.
Txhawm rau kom tsis txhob muaj ntau dhau ntawm rab koob thiab kev puas tsuaj rau lub taub hau 'meter', qhov ze ntawm cov iav xaiv yog rau qhov ntsuas qhov ntsuas hluav taws xob lossis tam sim no, qhov zoo dua nws yuav zoo dua. Qhov ze ntawm cov iav xaiv rau qhov ntsuas tus nqi, qhov tseeb dua qhov ntsuas tus nqi.
(4) Thaum ntsuas qhov kev tiv thaiv, tsis txhob kov qhov kawg ntawm cov khoom (lossis cov hlau ntawm ob lub pas nrig) nrog koj txhais tes, kom tsis txhob muaj kev sib txuas ntawm tib neeg lub cev tiv thaiv thiab ntsuas kev tiv thaiv, uas yuav ua rau muaj kev sib txuas ntawm tib neeg lub cev tiv thaiv thiab ntsuas kev tiv thaiv. ntsuas qhov tshwm sim tsis raug.
(5) Kev ntsuas kev tiv thaiv, xws li ob lub pas nrig luv luv, kho qhov "zero ohm" pob qhov rooj rau, tus pointer tseem tsis tau txog 0, qhov tshwm sim no feem ntau tshwm sim los ntawm cov roj teeb tsis txaus hauv lub rooj, yuav tsum hloov nrog lub roj teeb tshiab tuaj yeem ntsuas qhov tseeb.
(6) Thaum lub multimeter tsis siv, tsis txhob tig rau hauv cov iav tiv thaiv, vim tias muaj cov roj teeb sab hauv, xws li kev ua yuam kev yooj yim ua rau ob lub pas nrig kov lub luv luv, tsis tsuas yog haus cov roj teeb xwb, thiab qhov mob hnyav, tseem yuav puas lub taub hau meter.
