Momwe Mungayesere Malo ndi Multimeter (Masitepe 6)

Kwa makina aliwonse amagetsi amagetsi, kukhalapo kwa waya pansi ndikofunikira. Nthawi zina kusowa kwa waya wapansi kungayambitse zotsatira zoopsa kwa dera lonse. Ndicho chifukwa chake lero tiwona momwe tingayang'anire nthaka ndi multimeter.

Monga lamulo, mutatha kukhazikitsa ma multimeter kuti mukhale ndi mphamvu zambiri, mukhoza kuyika mayesero kuti muwone mawaya otentha, osalowerera ndale ndi pansi ndi ma voltages awo. Kenako mutha kudziwa ngati malowo ali okhazikika bwino kapena ayi. Pansipa tikambirana izi.

Kodi grounding ndi chiyani?

Tisanayambe ndondomeko yoyesera, tiyenera kukambirana za maziko. Popanda kumvetsetsa koyenera kwa maziko, kupita patsogolo kulibe tanthauzo. Kotero apa pali kufotokozera kosavuta kwa grounding.

Cholinga chachikulu cha kulumikiza pansi ndikusamutsa magetsi otulutsidwa kuchokera ku chipangizo kapena potulukira pansi. Choncho, palibe amene adzalandira kugwedezeka kwa magetsi chifukwa cha kutulutsa magetsi. Ndondomeko yoyenera yotetezera yomwe ili ndi malo ogwira ntchito imafuna waya. Mutha kugwiritsa ntchito njirayi kunyumba kapena galimoto yanu. (1)

6 Malangizo Othandizira Kuyesa Waya Wapansi Ndi Multimeter

M'chigawo chino, tikambirana momwe tingayesere malo ndi multimeter. Komanso, pachiwonetserochi, tikhala tikugwiritsa ntchito magetsi apanyumba nthawi zonse. Cholinga chake ndikupeza ngati chotulukacho chakhazikika bwino. (2)

Khwerero 1 - Konzani ma multimeter anu

Choyamba, muyenera kukhazikitsa multimeter moyenera poyesa kuyesa. Chifukwa chake, ikani ma multimeter anu kukhala AC voltage mode. Komabe, ngati mukugwiritsa ntchito multimeter ya analogi, muyenera kuyimba kuyimba kwa V.

Kumbali ina, ngati mukugwiritsa ntchito DMM, muyenera kuzungulira makonda mpaka mutapeza magetsi a AC. Mukachipeza, ikani mtengo wa cutoff kukhala wokwera kwambiri. Kumbukirani, kuyika voliyumu pamalo apamwamba kwambiri kukuthandizani kuti muwerenge molondola.

Komabe, ma multimeter ena amatumizidwa popanda ma cutoff values. Pankhaniyi, ikani ma multimeter ku makonzedwe amagetsi a AC ndikuyamba kuyesa.

Gawo 2 - Lumikizani masensa

Multimeter ili ndi ma probe awiri amitundu yosiyanasiyana, ofiira ndi akuda. Zofufuza ziwirizi ziyenera kulumikizidwa bwino ndi madoko a multimeter. Chifukwa chake, lumikizani chowongolera chofiira padoko lolembedwa V, Ω, kapena +. Kenako gwirizanitsani kafukufuku wakuda ku doko lolembedwa - kapena COM. Kulumikizana kolakwika kwa ma probe awiriwa ndi madoko kungapangitse kuti pakhale kufupi kwafupipafupi mu multimeter.

Komanso, musagwiritse ntchito masensa omwe awonongeka kapena osweka. Komanso pewani kugwiritsa ntchito ma probe okhala ndi mawaya opanda kanthu chifukwa mutha kugunda ndi magetsi pakuyesa.

Khwerero 3 - Yang'anani Kuwerenga Pogwiritsa Ntchito Madoko Okhazikika komanso Osalowerera Ndale

Tsopano mutha kuyang'ana waya wapansi ndi multimeter. Pakadali pano, muyenera kuyesa mawaya otentha komanso osalowerera ndale ndi ma test multimeter.

Musanachite izi, onetsetsani kuti mwagwira ma probes kuchokera pazovala zotetezera, izi zidzakutetezani ku zovuta zilizonse.

Kenako ikani kafukufuku wofiyira mu doko logwira ntchito.

Tengani kafukufuku wakuda ndikuyiyika mu doko lopanda ndale. Nthawi zambiri, doko laling'ono ndilo doko logwira ntchito ndipo doko lalikulu ndi doko lopanda ndale.

"Komabe, ngati simungathe kuzindikira madoko, mutha kugwiritsa ntchito njira yachikhalidwe. Tulutsani mawaya atatu, ndiyeno ndi mitundu yosiyanasiyana, mumatha kumvetsetsa mawaya mosavuta.

Nthawi zambiri mawaya amoyo amakhala ofiirira, waya wosalowererapo amakhala wabuluu, ndipo waya wapansi amakhala wachikasu kapena wobiriwira.”

Mukayika zofufuza ziwiri mkati mwa madoko amoyo ndi osalowerera, yang'anani mphamvu yamagetsi pa multimeter ndikulemba.

Khwerero 4 - Yang'anani mphamvu yamagetsi pogwiritsa ntchito doko lapansi

Tsopano muyenera kuyang'ana mphamvu pakati pa madoko amoyo ndi pansi. Kuti muchite izi, chotsani chiwongolero chofiira kuchokera ku doko lopanda ndale ndikuchiyika mosamala mu doko la pansi. Osadula kafukufuku wakuda kuchokera padoko logwira ntchito panthawiyi. Doko la pansi ndi dzenje lozungulira kapena looneka ngati U lomwe lili pansi kapena pamwamba pa chotulukira.

Yang'anani kuwerengera kwamagetsi pa multimeter ndikulemba. Tsopano yerekezerani kuwerenga uku ndi kuwerenga kwam'mbuyomu.

Ngati cholumikizira chikalumikizidwa, mupeza zowerengera zomwe zili mkati kapena mkati mwa 5V. Komabe, ngati kuwerenga pakati pa doko lamoyo ndi nthaka kuli ziro kapena pafupi ndi ziro, ndiye kuti kutulutsa sikunakhazikike.

Khwerero 5 - Fananizani Zowerenga Zonse

Muyenera kuwerengera katatu kuti mufananize bwino. Mwawerenga kale kawiri.

Kuwerenga koyamba: Kuwerenga doko lokhazikika komanso lopanda ndale

Kuwerenga kachiwiri: Doko la nthawi yeniyeni komanso kuwerenga pansi

Tsopano tengani zowerengera kuchokera ku doko lopanda ndale ndi doko lapansi. Chitani izi:

1. Lowetsani kafukufuku wofiyira mu doko losalowerera ndale.
2. Ikani kafukufuku wakuda mu doko lapansi.
3. Lembani kuwerenga.

Mudzapeza mtengo wochepa wa madoko awiriwa. Komabe, ngati kugwirizana kwa nyumbayo sikunapangidwe, palibe chifukwa chowerengera katatu.

Khwerero 6 - Werengani kutayikira kwathunthu

Ngati mwamaliza masitepe 3,4, 5, XNUMX ndi XNUMX, tsopano muli ndi zowerengera zitatu zosiyana. Kuchokera paziwerengero zitatuzi, werengerani kutayikira konse.

Kuti mupeze kutayikira konse, chotsani kuwerenga koyamba kuchokera kwachiwiri. Kenako onjezerani kachitatu pa kuwerenga kotsatira. Ngati zotsatira zomaliza ndi zazikulu kuposa 2V, mungakhale mukugwira ntchito ndi waya wolakwika. Ngati zotsatira zake ndi zosakwana 2V, socket ndiyotetezeka kugwiritsa ntchito.

Iyi ndi njira yabwino yopezera mawaya apansi olakwika.

Mavuto oyendetsa magetsi agalimoto

Kwa galimoto iliyonse, pakhoza kukhala mavuto amagetsi chifukwa choyika pansi. Kuphatikiza apo, mavutowa amatha kuwonekera m'njira zambiri, monga phokoso lamawu, vuto la pampu yamafuta, kapena kuwonongeka kwa injini zamagetsi. Ngati mungathe kupewa mavutowa, zidzakhala zabwino kwa inu ndi galimoto yanu.

Nawa malangizo amomwe mungapewere vutoli.

Ground quality point

Ambiri aife timaganiza kuti ngati waya wapansi wakumana ndi galimoto, chilichonse chimakhala chokhazikika. Koma izi si zoona. Waya wapansi uyenera kulumikizidwa bwino pagalimoto. Mwachitsanzo, sankhani mfundo yomwe ilibe utoto ndi dzimbiri. Kenako gwirizanitsani.

Gwiritsani ntchito multimeter kuti muwone ngati pali maziko

Pambuyo polumikiza waya wapansi, nthawi zonse ndi bwino kuyang'ana pansi. Chifukwa chake, gwiritsani ntchito multimeter pakuchita izi. Gwiritsani ntchito batri ndi waya pansi kuti mudziwe mphamvu yamagetsi.

Gwiritsani ntchito mawaya akuluakulu

Malingana ndi mphamvu zamakono, mungafunike kusintha kukula kwa waya wapansi. Nthawi zambiri, mawaya opangidwa ndi fakitale amakhala 10 mpaka 12 geji.

Pansipa pali maupangiri ena ophunzitsira ma multimeter omwe mungayang'anenso.

• Momwe mungagwiritsire ntchito multimeter kuti muwone mphamvu ya mawaya amoyo
• Momwe mungadziwire waya wosalowerera ndi multimeter
• Momwe Mungagwiritsire Ntchito Cen-Tech Digital Multimeter Kuwona Voltage

ayamikira

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

(2) nyumba wamba - https://www.bhg.com/home-improvement/exteriors/curb-appeal/house-styles/

Ulalo wamavidiyo

Kuyesa Kwanyumba Yokhala Ndi Multimeter---Yosavuta !!