Yuav ua li cas ntsuas kub nrog digital multimeter?
1) Txuas cov plugs ntawm ob qho kawg ntawm lub thermocouple mus rau qhov ntsuas hluav taws xob raws li qhov zoo thiab qhov tsis zoo polarity.
(2) Tig lub pob qhov rooj mus rau qhov ntsuas kub iav Celsius degree. Lub pob xiav ntawm sab xis ntawm lub ntsuas ntsuas hloov qhov ntsuas kub mus rau Fahrenheit℉.
(3) Nrog xoom taw tes them nyiaj ua haujlwm, nias lub teeb daj teeb thiab lub teeb pom kev nyob rau tib lub sijhawm kom nkag mus rau hom kev hloov kho, thiab siv tus lej nce thiab nqis qis ntawm sab xis sab xis los kho qhov siv xoom taw tes hauv ob qho lus qhia. .
(4) Thaum qhov kev hloov kho tiav thiab lees paub, thov nias lub pob teeb daj thiab lub teeb nraub qaum tib lub sijhawm.
(5) Nias lub teeb daj teeb thiab Hz feem pua ms tus yuam sij kom tawm ntawm hom kev hloov kho.
Dab tsi yog cov txheej txheem dav dav rau kev daws teeb meem digital multimeter?
Teb: Ib qho digital multimeter yog lub ntsuas ntsuas uas siv lub hauv paus ntsiab lus ntawm analog / digital hloov pauv los hloov tus nqi ntsuas mus rau hauv cov lej digital thiab tso saib qhov ntsuas ntsuas hauv daim ntawv digital. Piv nrog rau lub pointer multimeter, cov multimeter digital muaj qhov zoo ntawm qhov siab precision, ceev ceev, loj input impedance, digital zaub, nyeem ntawv raug, muaj peev xwm tiv thaiv kev cuam tshuam, thiab qib siab ntawm kev ntsuas automation, yog li nws yog dav siv. Txawm li cas los xij, yog tias siv tsis raug, nws yooj yim ua rau tsis ua haujlwm.
Kev daws teeb meem digital multimeter feem ntau yuav tsum pib nrog lub hwj chim mov. Piv txwv li, yog tias tsis muaj cov zaub ntawm LCD tom qab tig lub zog, ua ntej xyuas seb qhov hluav taws xob ntawm 9V laminated roj teeb tsawg dhau lawm; seb lub roj teeb leads puas raug txiav. Nrhiav qhov txhaum yuav tsum ua raws li qhov kev txiav txim ntawm "thawj sab hauv thiab tom qab sab nraud, thawj zaug yooj yim thiab tom qab ntawd nyuaj". Kev daws teeb meem digital multimeter tuaj yeem ua tiav raws li hauv qab no:
(1) Kev kuaj pom pom:
Koj tuaj yeem kov lub roj teeb, resistors, transistors, thiab cov blocks sib xyaw kom pom tias qhov kub thiab txias dhau lawm. Yog tias lub roj teeb uas tau nruab tshiab sov, nws txhais tau hais tias lub voj voog yuav luv luv. Nyob rau hauv tas li ntawd, lub Circuit Court yuav tsum tau soj ntsuam rau disconnection, desoldering, mechanical puas, thiab lwm yam.
(2) Kev kuaj xyuas qhov ua haujlwm voltage ntawm txhua qib:
Txhawm rau txheeb xyuas qhov ua haujlwm voltage ntawm txhua qib thiab sib piv nrog tus nqi ib txwm muaj, qhov tseeb ntawm qhov siv hluav taws xob yuav tsum tau ua kom ntseeg tau ua ntej, thiab nws yog qhov zoo tshaj plaws los siv lub tshuab digital multimeter ntawm tib tus qauv lossis zoo ib yam los ntsuas thiab sib piv.
(3) Waveform tsom xam:
Siv lub tshuab hluav taws xob oscilloscope los soj ntsuam qhov voltage waveform, amplitude, lub sij hawm (frequency), thiab lwm yam ntawm txhua qhov tseem ceeb ntawm lub voj voog. Piv txwv li, sim seb lub moos oscillator pib oscillate, thiab seb qhov oscillation zaus yog 40 kHz. Yog hais tias lub oscillator tsis muaj cov zis, nws txhais tau hais tias lub internal inverter ntawm TSC7106 puas, los yog lwm yam khoom yuav qhib. Saib xyuas tias lub waveform ntawm tus pin {21} ntawm TSC7106 yuav tsum yog 50 Hz square nthwv dej, txwv tsis pub, sab hauv 200 zaus sib faib yuav puas.
(4) Kev ntsuas qhov ntsuas qhov ntsuas:
Rau cov khoom nyob rau hauv qhov kev ua txhaum ntau, ua kev ntsuas hauv online lossis off-line, thiab txheeb xyuas qhov ntsuas qhov ntsuas. Thaum ntsuas kev tiv thaiv hauv online, qhov cuam tshuam ntawm cov khoom sib txuas ua ke nrog nws yuav tsum tau txiav txim siab.
(5) Kev daws teeb meem zais:
Cov kev ua txhaum zais cia hais txog qhov ua txhaum uas tshwm sim thiab ploj mus ib ntus, thiab cov cuab yeej siv qee zaum zoo lossis tsis zoo. Qhov kev ua tsis tiav no yog qhov nyuaj dua, thiab cov laj thawj feem ntau suav nrog cov vuam tsis muaj zog ntawm cov pob qij txha, qhov xoob, xoob ntawm cov khoom sib txuas, kev sib cuag tsis zoo ntawm cov hloov pauv hloov, kev ua haujlwm tsis ruaj khov ntawm cov khoom, thiab kev tawg ntawm cov txhuas, thiab lwm yam. Tsis tas li ntawd, nws kuj suav nrog. tej yam sab nraud. Piv txwv li, ambient kub siab dhau lawm, cov av noo siab dhau lawm, los yog muaj cov teeb liab cuam tshuam muaj zog nyob ze.
