Xyuas kom ua ua ntej siv lub multimeter
Multimeter yog ib qho khoom siv ntau yam, ntau qhov ntsuas ntsuas, hluav taws xob thiab hluav taws xob tshuab yog ib txwm sib cais los ntawm nws. General multimeter tuaj yeem ntsuas DC tam sim no, DC voltage, AC tam sim no, AC voltage, tsis kam thiab qib suab, qee qhov kuj tuaj yeem ntsuas qhov capacitance, inductance thiab semiconductor tsis (xws li) thiab lwm yam. Yog hais tias cov zaub tsuas yog txawv, lub multimeter tuaj yeem muab faib ua pointer multimeter thiab digital multimeter.
Peb lub luag haujlwm tseem ceeb ntawm lub tshuab hluav taws xob yog ntsuas qhov ua haujlwm, qhov hluav taws xob thiab tam sim no, yog li cov laus-timers hu ua triple meter. Niaj hnub no, lub multimeter tau ntxiv ntau yam tshiab, tshwj xeeb tshaj yog cov digital multimeter, xws li ntsuas capacitance, transistor amplification, diode voltage poob, thiab lwm yam. Muaj ib hom digital multimeter uas tuaj yeem hais lus, uas tuaj yeem tshaj tawm cov txiaj ntsig ntsuas hauv hom lus.
Cov kauj ruam ua haujlwm
Xyuas seb lub roj teeb hluav taws xob thiab lub zog hluav taws xob puas yog qhov qub thiab seb lub roj teeb lub taub hau puas yog xeb tiag tiag, ntau tus tswv xav tias qhov xau ua rau muaj teeb meem roj teeb, lossis teeb meem lub tshuab hluav taws xob;
Nug tus tswv, tsis ntev los no yog tsis kho dab tsi, ntxiv dab tsi los yog kev sib tsoo dismantle qhov twg;
Tshem tawm qhov tsis zoo ntawm lub roj teeb lub davhlau ya nyob twg, hu xov tooj rau multimeter mus rau lub iav tam sim no * iav loj, tus cwj mem liab txuas cov hlau tsis zoo, tus cwj mem dub txuas lub roj teeb lub taub hau thiab kho;
Tua tag nrho cov khoom siv hluav taws xob sab hauv thiab sab nraud ntawm lub tsheb, kaw lub qhov rooj, saib xyuas qhov loj me tam sim no, kho kom haum rau cov iav tsim nyog, cov ntaub ntawv;
Tos li 20 feeb; nyeem qhov tseeb static tawm tam sim no tom qab tag nrho cov modules ntawm lub tsheb tau nkag mus rau hauv lub dormant lub xeev;
Qhov tam sim no zoo li qub feem ntau yog nyob ntawm 0.03A (piv txwv li 30mA), xa mus rau phau ntawv qhia kev pabcuam kom paub meej, tsis pub ntau tshaj 50mA;
Yog tias qhov hluav taws xob zoo li qub loj dhau (raws li hauv daim duab saum toj no), peb tuaj yeem tshawb xyuas nws los ntawm rub tawm cov fuses thiab relays, piv txwv li, rub tawm cov fuses ib qho los ntawm ib qho thiab soj ntsuam qhov loj ntawm qhov tam sim no zoo li qub;
Xyuas ua ntej ntsuas
Saib seb lub koob multimeter yog teem rau ntawm {{0}}. Yog tias nws tsis nyob ntawm 0, tig lub zeroing ntsia hlau kom nws teeb ntawm 0.
Tshawb xyuas qhov ncaj ncees ntawm ob tus cwj mem thiab cov txhuas. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog thaum ntsuas AC voltages siab dua los tiv thaiv hluav taws xob.
Tshawb xyuas cov hlau lead thiab sim ua kom nruj yog tias lawv xoob. Qee lub sij hawm lub looseness yog tshwm sim los ntawm lub jack lub fastening txiv ntseej loosening, lub sij hawm no mus ua si thiab rooj plaub los kho.
