Yuav ua li cas nyeem ntawv ntawm tus pointer multimeter nrog AC 500 ntsuas
Rau lub pointer universal dial saum toj no ntau kab lus teev, beginners ntau zoo li yuav tsis meej pem, tsis paub yuav ua li cas nyeem tus pointer qhov twg dial qhia nyeem, tshwj xeeb tshaj yog thaum ntsuas qhov voltage rau high voltage iav nyeem, vim hais tias ib co ntawm cov thaum ntxov pointer cov lus dial voltage iav nplai tsuas yog qhia tus nqi ntawm 250. Qhov tseeb, nyob rau hauv lub iav 500 iav, uas yog qhov kev nyeem ntawv ntawm cov nplai muab faib ua 2 zaug, yog qhov tseeb nyeem ntawv, yog tias muaj 100V iav, ua 4x.
Pointer multimeter feem ntau yog siv rau AC thiab DC voltage thiab tam sim no, ntsuas ntsuas. Tag nrho cov pointer multimeter yog tsim los ntawm 'meter' taub hau, 'meter' taub hau dial, meter taub hau kho ntsia hlau, muaj nuj nqi knob, ohm kho pob qhov rooj, 'meter' cwj mem jack, transistor nrhiav jack, meter cwj mem thiab lwm yam. Precisely vim hais tias tus pointer multimeter ntsuas muaj nuj nqi ntau, yog li lub dial yog cais los qhia txawv scale kab thiab scale qhov tseem ceeb. Lub dial scale ntawm tus pointer multimeter muaj tsib concentric arcs, txhua qhov teev yog cim nrog ib qho kev nyeem tas li ntawm tus nqi teev, uas yuav tsum tau sib phim nrog lub zog khawm iav kom nyeem.
Yuav ua li cas nyeem qhov ntsuas voltage?
Multimeter dial AC thiab DC voltage scale qhov tseem ceeb yog sib npaug spaced faib, tag nrho kev sib cais ntawm 5 daim phiaj loj, txhua daim phiaj loj muab faib ua 2 qhov sib npaug ntawm daim phiaj nruab nrab, txhua daim phiaj hauv nruab nrab yog faib ua 5 daim phiaj me me. Txhua daim phiaj sawv cev rau tus nqi nyeem ntawv vim qhov sib txawv ntawm cov iav xaiv tsis zoo ib yam.
Nug lub iav rau 500 lub zog, yuav ua li cas nyeem cov ntawv nyeem ntawm lub xov tooj? Qhov tseeb, nws yooj yim heev, 5 daim phiaj loj ntawm lub xov tooj, lub sijhawm no, txhua daim phiaj loj sawv cev "100", txhua daim phiaj me me sawv cev rau kev nyeem ntawv yog "10". Uas yog hais tias, lub teev nyob rau sab xis ntawm lub siab tshaj plaws zaub "250" Yog hais tias koj ua si rau lub 500 iav, ces koj yuav nyob rau hauv no scale raws li multiply los ntawm 2 yog tam sim no nyeem. Yog hais tias lub multimeter nyob rau hauv daim duab saum toj no mus rau 2500 zog, ces nws yog multiplied los ntawm 10 lub sij hawm nyeem ntawv, yog hais tias tus pointer qhia rau lub dial ntawm 250 teev ces qhov kev nyeem ntawv yog 2500.
Tam sim no qhia nyob rau hauv dial scale yog hais txog 211 scale, yog hais tias lub sij hawm no lub functionality ntawm lub pob qhov rooj iav mus rau 500, ces qhov kev nyeem ntawv yog multiplied los ntawm 2 lub sij hawm, 211 * 2=422V los yog li ntawd, yog hais tias lub sij hawm no yog ua si rau lub 2500 iav iav, ces qhov kev nyeem ntawv yog muab faib ua 10 npaug, 211 * 10=2110V los yog li ntawd, qhov voltage.
