Thaum muas lub multimeter, xav txog cov hauv qab no
A. Qhov tseeb
Qhov tseeb ntawm digital multimeter ncaj qha cuam tshuam rau qhov tseeb ntawm qhov ntsuas tau, tau txais digital multimeter yuav tsum yog thawj zaug los tshuaj xyuas qhov tseeb ntawm nws cov kev qhia: saib lub rooj saib seb qhov tseeb ntawm lub rooj tuaj yeem ncav cuag lawv tus kheej li cas. , thiab qhov thib ob yog los tshuaj xyuas tag nrho cov kev ua tau zoo ntawm lub rooj, tsis txhob xav tias ib tug 4-digit digital multimeter yuav tsum siab tshaj 3.5-digit digital multimeter ntsuas raug, ib daim ntawm 4 . Kev ntsuas qhov tseeb ntawm qhov kwv yees kwv yees li 4.5 tus lej multimeter kuj tseem tuaj yeem ntes nrog 3.5 tus lej multimeter zoo. Tus tswv ntawm lub khw tau ntsib xws li lub rooj: lub tuam txhab me me uas tsis muaj npe tsim 4.5 tus lej multimeter ntawm DT9103 hom, thiab hauv cov txheej txheem ntsuas, cov lej dhia ntau heev, uas tsis tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm cov kev qhia tshwj xeeb ntawm tag nrho.
B. Ceev faj
Qhov tshwm sim
Ib qho zoo digital multimeter tuaj yeem yog cov khoom siv zoo nkauj, tsis hais los ntawm cov khoom siv, kev txhaj tshuaj molding lossis Circuit Board, kev tiv thaiv npog thiab lwm yam, nws yuav tsum ua kom zoo meej li sai tau.
2, Tshawb xyuas cov khoom
Tom qab tau txais digital multimeter:
Ua ntej tshaj plaws, koj yuav tsum xyuas seb nws cov ntaub ntawv puas zoo li qub, seb qhov hloov thiab khawm ua haujlwm li cas thiab xav tias zoo.
Seb lub toggle hloov (kev ntsuas kev ua haujlwm xaiv) yog tig thiab hloov pauv, nrog rau qhov tsim nyog damping thiab xis tes xis nyob, thiab seb qhov ntsuas ntsuas qhov zoo li cas.
Txawm hais tias cov kua siv lead ua kua yog qhov tseeb, tsis muaj qhov ploj lawm, cov dhia digital yuav tsum tsawg li tsawg tau.
Seb lub buzzer tuaj yeem suab.
3, Reference yam
Yog tias koj tuaj yeem qhib rooj plaub, koj tuaj yeem xyuam xim rau kev tsim lub rooj tsav xwm hauv Circuit Court, xaiv cov khoom siv, kev teeb tsa thiab vuam theem, thiab lwm yam. Ib qho zoo digital multimeter, kev tsim ntawm lub rooj tsav xwm hauv Circuit Court yog ib qho tseem ceeb heev, lub rooj sab hauv feem ntau lub rooj tsavxwm ob txheej, thiab qee cov tuam txhab txawv teb chaws loj ntawm lub rooj yuav raug xaiv ntau txheej txheej txheej txheej txheej txheej txheej txheej kom muab kev tiv thaiv zoo dua thiab kev ua haujlwm hluav taws xob. Cov theem ntawm cov khoom xaiv tau txiav txim siab qhov ntsuas qhov tseeb ntawm digital multimeter, high-end digital multimeter feem ntau siv SMD Cheebtsam los txhim kho qhov tseeb thaum tseem txo qhov luaj li cas ntawm lub rooj tsavxwm Circuit Court, qhov tseem ceeb ntawm cov khoom yuav txawm raug tshuaj xyuas. Cov qib vuam tsis muaj ntau yuav hais, cov neeg nyiam siv hluav taws xob paub (hais txog qib vuam, koj tuaj yeem qhib ib daim ntawm ntau tshaj kaum yuan ntawm digital multimeter pom, cov khoom siv tes ua haujlwm yuav ua rau koj nyuaj siab).
Kev yuav khoom yuav tsum tau them sai sai rau qee cov ntsiab lus, xws li kev tiv thaiv kev nyab xeeb, khoom warranty, kuaj cables, cov neeg siv phau ntawv, thiab lwm yam.
4, kev ntsuas kev ua haujlwm
Thaum koj yuav ib lub tshuab multimeter, koj tuaj yeem ntsuas cov khoom paub nrog kev pab ntawm txoj kev (xws li kev tiv thaiv, lub peev xwm, roj teeb voltage, AC voltage, thiab lwm yam) kom paub meej tias qhov ntsuas kev ua haujlwm ntawm digital multimeter, thiab cov xwm txheej tuaj yeem xa mus rau cov koom haum tsim nyog rau cov kev ntsuas ntawm cov khoom-los ntawm-khoom tshuaj xyuas thiab kev lees paub.
