Maitiro ekuverenga Ohms paMultimeter (3 Nzira Yekutungamira)
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Maitiro ekuverenga Ohms paMultimeter (3 Nzira Yekutungamira)

19.02.2023 /

An ohmmeter kana ohmmeter yedhijitari inobatsira pakuyera kupikisa kwedunhu rechikamu chemagetsi. Kuenzaniswa neavo analog vamwe vavo, digital ohms iri nyore kushandisa. Nepo maohmeters anogona kusiyana nemuenzaniso, anoshanda nenzira yakafanana. Semuyenzaniso, chiratidziro chikuru chedhijitari chinoratidza kuyerwa uye kukosha kwekuramba, nhamba inowanzoteverwa nenzvimbo imwe kana mbiri dzedesimali.

Iyi positi inokuratidza maitiro ekuverenga ohms pane dijitari multimeter.

Zvinhu zvokutanga kucherechedza

Paunodzidza kuverenga ohms pane multimeter, zvakakosha kuziva kuti chigadziro chinoyera kururamisa kwekupikisa, chiyero chekushanda kwayo, pamwe nemagetsi uye ikozvino. Naizvozvo, izvi zvinoreva kuti iwe unogona kuishandisa kana uchiyera kuramba muchikamu chisina kutsanangurwa.

Nekugona kuyera kuramba, iyo multimeter kit inogona zvakare kuyedza yakavhurika kana yemagetsi kuvhunduka maseketi. Isu tinopa zano vashandisi kuti vaedze iyo multimeter kutanga kuti vaone kuti iri kushanda nemazvo. (1)

Ngatiendei kune nzira nhatu dzekuyera kuramba pane multimeter.

Kuverenga digital display

  1. Nhanho yekutanga inosanganisira kutsanangura chiyero chereferensi. Pedyo neomega, tsvaga "K" kana "M". Pane yako ohmmeter, chiratidzo che omega chinoratidza mwero wekupokana. Chiratidziro chinowedzera "K" kana "M" pamberi pechiratidzo cheomega kana kuramba kwezvauri kuyedza kuri mu kiloohm kana megaohm renji. Semuenzaniso, kana iwe uchingova neomega chiratidzo uye iwe ukawana kuverenga kwe3.4, izvo zvinongoshandura ku 3.4 ohms. Kune rimwe divi, kana kuverenga 3.4 kuchiteverwa ne "K" pamberi peomega, zvinoreva 3400 ohms (3.4 kOhm).
  1. Nhanho yechipiri ndeyekuverenga kukosha kwekupikisa. Kunzwisisa dhijitari ohmmeter chiyero chikamu chemaitiro. Chikamu chikuru chekuverenga chiratidziro chedhijitari kunzwisisa kukosha kwekupokana. Pachiratidziro chedhijitari, nhamba dzinoratidzwa nechepakati kumberi uye, sezvambotaurwa, enda kunzvimbo imwe kana mbiri dzedesimali. Iko kukosha kwekupokana kunoratidzwa padhijitari kuratidzwa kunoyera mwero wekuti chinhu kana mudziyo unodzikisira magetsi anoyerera kuburikidza nawo. Nhamba dzepamusoro dzinoreva kupikisa kwepamusoro, zvinoreva kuti mudziyo wako kana zvinhu zvinoda simba rakawanda kubatanidza zvikamu mudunhu. (2)
  1. Nhanho yechitatu ndeyekutarisa kana iyo yakatarwa chiyero idiki. Kana ukaona mitsetse mishoma ine madoti, "1" kana "OL" zvinoreva pamusoro pekutenderera, waisa huwandu hwakaderera. Mamwe mamita anouya ne autorange, asi kana iwe usina imwe, iwe unofanirwa kuseta iro renji iwe pachako.

Maitiro ekushandisa mita

Wese anotanga anofanirwa kuziva kuverenga ohms pane multimeter asati aishandisa. Iwe uchakurumidza kuziva kuti kuverenga kwemultimeter hakuna kuoma sezvavanoita.

Heano maitiro ekuzviita:

  1. Tsvaga bhatani re "simba" kana "ON/OFF" woridzvanya.
  2. Sarudza basa rekudzivirira. Sezvo iyo multimeter ichisiyana kubva kune imwe modhi kuenda kune imwe, tarisa mirairo yemugadziri wekusarudza kukosha kwekupokana. Multimeter yako inogona kuuya ine dial kana rotary switch. Zvitarise wobva wachinja marongero.
  3. Ziva kuti iwe unogona chete kuyedza kupikisa kwedunhu kana mudziyo uchidzikiswa. Kuibatanidza kune sosi yemagetsi kunogona kukuvadza iyo multimeter uye kuita kuti kuverenga kwako kuite.
  4. Kana iwe uchida kuyera kushorwa kwechikamu chakapihwa zvakasiyana, taura capacitor kana resistor, bvisa kubva pachiridzwa. Iwe unogona kugara uchitsvaga nzira yekubvisa chikamu kubva kune mudziyo. Zvadaro pfuurira kuyera kushorwa nekubata probes kune zvikamu. Unogona here kuona waya dzesirivha dzichibuda muchikamu? Aya ndiwo anotungamira.

Range setting

Paunenge uchishandisa autorange multimeter, inozvisarudzira otomatiki huwandu kana voltage yaonekwa. Nekudaro, iwe unofanirwa kuseta iyo modhi kune chero chauri kuyera, seyazvino, voltage, kana kuramba. Mukuwedzera, pakuyera ikozvino, unofanira kubatanidza waya kune zvibatanidza zvakakodzera. Pazasi pane mufananidzo unoratidza mavara aunofanirwa kuona pane renji bar.

Kana iwe uchida kuseta chiyero iwe pachako, zvinokurudzirwa kuti utange nepamusoro-soro inowanikwa uye wozoshanda nzira yako kudzika kusvika kune yakaderera kusvika wawana ohmmeter kuverenga. Ko kana ndikaziva huwandu hwechikamu chiri pasi pekuyedzwa? Nekudaro, shanda pasi kusvika wawana kuverenga kwekupokana.

Iye zvino zvawave kuziva kuverenga ohms paDMM, pane dzimwe dziviriro dzaunofanira kuchengeta mupfungwa. Uyewo ita shuwa kuti uri kushandisa mudziyo nemazvo. Muzviitiko zvakawanda, kukundikana kunokonzerwa nekukanganisa kwevanhu.

Pazasi pane mamwe madhairekitori ekudzidza aunogona kuongorora kana bhukimaki kuti uverenge gare gare.

  • Maitiro ekuverenga analog multimeter
  • Cen-Tech 7-Function Digital Multimeter Overview
  • Kutarisisa kweiyo Power Probe multimeter

kurumbidza

(1) kuvhunduka panguva - https://www.mayoclinic.org/first-aid/first-aid-electrical-shock/basics/art-20056695

(2) mapoinzi egumi - https://www.mathsisfun.com/definitions/decimal-point.html

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