Juriya Mai Gwajin Wutar Lantarki

Wirecutter yana goyan bayan masu karatu.Lokacin da kuka sayi ta hanyar haɗin yanar gizon mu, ƙila mu sami hukumar haɗin gwiwa.kara koyo
Gwajin wutar lantarki mara lamba ita ce hanya mafi sauri kuma mafi sauƙi don bincika amincin halin yanzu a cikin wayoyi, soket, musanya, ko tsoffin fitilun da suka daina aiki a asirce.Wannan kayan aiki ne mai amfani wanda kowane ma'aikacin lantarki ke ɗauka tare da shi.Bayan yin magana da wani babban ma'aikacin lantarki tare da shekaru 20 na gwaninta da kuma amfani da samfurori guda bakwai na gwaji na watanni takwas, mun gano cewa Klein NCVT-3 shine mafi kyawun zabi.
Klein na iya gano daidaitaccen ƙarfin lantarki da ƙananan ƙarfin lantarki, kuma an sanye shi da fitilar walƙiya-lokacin da hasken ya kashe, ƙila ka buƙaci kayan aiki mai kyau.
Klein NCVT-3 samfuri ne mai dual-voltage, don haka yana rikodin duka daidaitattun ƙarfin lantarki (wayoyin gida) da ƙananan ƙarfin lantarki (kamar ban ruwa, kararrawa, thermostat).Ba kamar wasu samfuran da muka gwada ba, yana iya bambanta ta atomatik tsakanin su biyun.Wannan fasalin kuma yana sa ya dace da ƙwanƙwasa masu hana tamper a yanzu ta hanyar ƙayyadaddun lantarki.Abubuwan sarrafawa akan NCVT-3 suna da hankali kuma suna nunawa a sarari.Lokacin da aka gwada shi a cikin da'irar da ke cike da matattun wayoyi masu rai da matattun wayoyi, yana da hankali sosai don karanta matattun wayoyi daga ɗan gajeren nesa ba tare da yin rahoton ƙarya ga wayoyi masu rai daga nan kusa ba.Amma abin da ya fi amfani a zahiri shi ne hasken wutar lantarki mai haske na LED, wanda za a iya sarrafa shi ba tare da na'urar gwajin wutar lantarki ba.Don kayan aikin da ake amfani da su sau da yawa a cikin ƙananan ginshiƙai ko lokacin da fitilu ba sa aiki, wannan sifa ce ta sakandare amma mai amfani sosai, kuma Klein shine kawai samfurin da muka gwada tare da wannan fasalin.A cewar kamfanin, kayan aikin kuma na iya ɗaukar digo har zuwa ƙafa 6.5, wanda ba shi da kyau idan aka yi la’akari da shi nagartaccen kayan lantarki ne.
Wannan na'urar gwajin wutar lantarki guda biyu yayi kama da zaɓin mu ta mafi mahimmanci, amma wasu ƙananan bayanan sa sun fi ban haushi.
Idan ba za ku iya samun Klein ba, muna kuma son Milwaukee 2203-20 mai gano ƙarfin lantarki tare da LED.Farashin sa kusan iri ɗaya ne, kuma kama da ƙa'idodin gwajin Klein da ƙarancin wutar lantarki, da sauƙin amfani.Amma fitilar ba ta da haske sosai kuma ba za a iya amfani da ita ita kaɗai ba tare da mai gwadawa ba.Hakanan yana fitar da ƙara mai ƙarfi kuma babu wani zaɓi na bebe.
Klein na iya gano daidaitaccen ƙarfin lantarki da ƙananan ƙarfin lantarki, kuma an sanye shi da fitilar walƙiya-lokacin da hasken ya kashe, ƙila ka buƙaci kayan aiki mai kyau.
Wannan na'urar gwajin wutar lantarki guda biyu yayi kama da zaɓin mu ta mafi mahimmanci, amma wasu ƙananan bayanan sa sun fi ban haushi.
Ina rubuce-rubuce da bitar kayan aikin tun daga 2007, kuma an buga labarai a cikin Gine-gine Mai Kyau, Wannan Tsohon Gidan, Kimiyyar Kimiyya, Mashahurin Makanikai da Kayan Aikin Kasuwanci.Har ila yau, na yi aiki a matsayin kafinta, mai kula da wuraren aiki na tsawon shekaru 10, ina aiki a kan ayyukan zama na miliyoyin daloli.A cikin 2011, na kuma rushe gidan gonata mai shekaru 100, wanda ke buƙatar sabon tsarin lantarki.
Don ƙarin bayani game da masu gwajin wutar lantarki marasa lamba, na yi magana da mutanen da suke amfani da su kowace rana: Mark Tierney na Tierney Electric, Hopkinton, Massachusetts.Tierney yana da gogewa na shekaru 20 kuma yana gudanar da nasa kamfani tun 2010.
Gwajin wutar lantarki mara lamba yana buƙatar kasancewa kusa don gano halin yanzu a cikin waya ko soket.1 Girma ne da siffar kitse mai kaifi.Gano yana faruwa a tip ɗin bincike.A yawancin lokuta, an ƙirƙiri tip ɗin bincike don a tura shi zuwa wani waje.Tun da girgizar wutar lantarki ba ta da daɗi a mafi kyau kuma tana da cutarwa a mafi muni, wannan kayan aikin yana da amfani ga ko da mafi ƙarancin ayyuka na lantarki, kamar magance matsalar ma'aunin zafi da sanyio ko shigar da maɓalli mai dimmer.
Babu shakka, babban kayan aiki ne ga masu aikin lantarki na DIY, amma har ma mutanen da ba su da sha'awar lantarki za su iya amfana daga samun ɗaya.Yawancin lokaci ina amfani da shi azaman matakin farko na magance matsala kafin kiran ƙwararrun ma'aikacin lantarki.
Gwajin mara lamba kuma zai iya taimakawa taswirar tsarin wutar lantarki da kuke ciki.Ban zauna a kowane gida kusa da madaidaicin alamar panel ba.Idan kana da tsohon gida ko ɗakin kwana, mai yiwuwa ma'aunin wutar lantarkin naka ana kuskure.Magance wannan matsala tsari ne mai cin lokaci, amma yana yiwuwa.Kashe duk na'urorin da'ira banda guda ɗaya, sannan a duba ayyukan da ke kewayen gidan.Da zarar kun gano shi, yi wa na'urar keɓe lakabin kuma matsa zuwa na gaba.
Yawancin masu gwajin da ba sa tuntuɓar sadarwa suna rikodin daidaitattun ƙarfin lantarki ne kawai.Bayan karantawa game da batun, mun yanke shawarar cewa ma'aunin wutar lantarki na biyu ya fi dacewa da akwatunan kayan aiki na gida.Don daidaitaccen ƙarfin lantarki, har yanzu yana iya aiki akai-akai, kuma akwai ƙarin fa'ida na gano ƙarancin wutar lantarki, wanda ke da amfani ga ƙwanƙolin ƙofa, ma'aunin zafi da sanyio, wasu kayan aikin AV, ban ruwa da wasu hasken wuta.Farashin nau'ikan nau'ikan nau'ikan wutar lantarki da nau'ikan wutar lantarki guda ɗaya sun fi yawa tsakanin dalar Amurka 15 zuwa dalar Amurka 25, don haka na'urori masu kewayon biyu suna da ma'ana a matsayin kayan aiki na tsayawa ɗaya ga waɗanda ba ƙwararru ba;samun iyawa da rashin amfani da shi yana da mahimmanci fiye da buƙatunsa da rashin mallakarsa.mai kyau.
Lokacin da muke yanke shawarar samfuran da za mu gwada, mun yi nazarin samfuran Amazon, Home Depot, da samfuran Lowes.Mun kuma yi niyya sanannun masana'antun kayan aikin wutar lantarki.Tun daga lokacin, mun rage lissafin zuwa bakwai.
Mun gudanar da wasu gwaje-gwaje don tantance fa'idar aiki da azancin kowane mai gwadawa.Da farko, na kashe na'urar da ke kan akwatin lantarki kuma na yi ƙoƙarin gano waɗanne wayoyi 35 da ke fitowa daga cikin ta ya karye.Bayan haka, na ɗauki matacciyar waya don ganin ko zan iya kawo kayan aiki kusa da waya mai rai kuma har yanzu in sami mai gwadawa don karanta korau.Baya ga waɗannan gwaje-gwajen tsarin, na kuma yi amfani da na'urar gwaji don haɗa wasu kwasfa da sanya wasu maɓalli masu ɗimbin ɗimbin ɗimbin ɗimbin, dafaffen dafa abinci, magoya bayan silin da wasu na'urori.
Klein na iya gano daidaitaccen ƙarfin lantarki da ƙananan ƙarfin lantarki, kuma an sanye shi da fitilar walƙiya-lokacin da hasken ya kashe, ƙila ka buƙaci kayan aiki mai kyau.
Bayan binciken batutuwa, yin magana da masu aikin lantarki, da kuma ciyar da sa'o'i don gwada samfurori bakwai, muna ba da shawarar Klein NCVT-3.NCVT-3 yana da haske mai saurin fahimta, kyakkyawar maɓallin kunnawa/kashewa da LED na kan jirgi wanda ke aiki kamar ƙaramin walƙiya.Wannan siffa ce mai kyau, domin lokacin da kake duba ƙarfin lantarki na waya, mai yiwuwa hasken ba ya aiki yadda ya kamata.Hakanan yana dacewa da soket mai hana tamper da lambar yanzu ke buƙata.NCVT-3 yana da alamar rayuwar baturi da jiki mai ɗorewa wanda ke ba da kariya ga kayan lantarki masu mahimmanci daga digo har zuwa ƙafa 6½.
Mafi mahimmanci, NCVT-3 yana da sauƙin amfani.Na'urar kewayo ce mai dual, don haka tana iya gano ma'aunin wutar lantarki (sockets, wiring na al'ada) da kuma ƙananan ƙarfin lantarki (ƙararar kofa, thermostat, na'urar ban ruwa).Yawancin masu gwadawa suna gano daidaitattun ƙarfin lantarki ne kawai.Ba kamar sauran nau'ikan nau'i-nau'i-biyu ba, yana iya canzawa ta atomatik tsakanin jeri ba tare da yin amfani da bugun bugun hankali mai wahala ba.Hoton sandar LED a gefen kayan aiki yana nuna irin ƙarfin lantarki da kuke mu'amala dashi.Gano ƙarancin wutar lantarki yana haskaka fitilun orange guda biyu a ƙasa, kuma daidaitaccen ƙarfin lantarki yana haskaka ɗaya ko fiye na fitilun ja uku a saman.Kamfanoni da yawa suna sayar da na'urorin gano matsi masu girma da ƙananan, amma ga waɗanda ba ƙwararru ba, yana da ma'ana don sanya su cikin kayan aiki ɗaya, musamman idan yana da sauƙin aiki kamar Klein.
A cikin ginshiki na, wayoyi suna ƙusa a saman rufin sama da fitilun fitilu, don haka ko da fitilu suna kunne, yana da wuya a iya rike wayoyi.Daga cikin nau'ikan guda biyu tare da fitilun walƙiya, NCVT-3 shine kaɗai wanda za'a iya sarrafa kansa ba tare da aikin gwaji ba, wanda yake da kyau sosai.
Hasken walƙiya na LED shine haske na NCVT-3.A cikin ginshiki na, wayoyi suna ƙusa a saman rufin sama da fitilun fitilu, don haka ko da fitilu suna kunne, yana da wuya a iya rike wayoyi.Daga cikin nau'ikan guda biyu tare da fitilun walƙiya, NCVT-3 shine kaɗai wanda za'a iya sarrafa kansa ba tare da aikin gwaji ba, wanda yake da kyau sosai.Lokacin da aka kunna mai gwadawa, za a sami jerin ƙararrawa da fitilu masu walƙiya.Idan kawai kuna son amfani da walƙiya, yana da kyau ku iya guje wa shi.Zaɓin namu mai zuwa, Milwaukee 2203-20 na'urar gano wutar lantarki tare da LED shima yana da aikin walƙiya, amma zai haskaka kawai lokacin da aka kunna gwajin, don haka duk da haka, dole ne ku saurari ƙarar, babu wata hanya ko da. idan kana cikin daki mai haske Kashe fitilar lokacin aiki a cikin birni.LED NCVT-3 shima ya fi Milwaukee haske.
NCVT-3 kuma yana da jin dadi sosai.A cewar masana'anta, yana iya jure wa digon ƙafar ƙafa 6.5, don haka idan kun sami faɗuwa, wannan ƙirar za ta ba ku damar tsira.Bugu da ƙari, an rufe maɓallan, kuma an rufe murfin ɗakin baturi, don haka NCVT-3 na iya jure wa ɗan ruwan sama da zafi.Klein yana da bidiyo game da kayan aiki, kuma yana kama da yana ƙarƙashin ɗigon famfo.
Lokacin da muka tambayi ma'aikacin wutar lantarki Mark Tierney ko zai ba da shawarar kowane masana'anta ga mai gida, ya ce mana "mafi aminci shine Klein."Hakanan yana son samfura masu LEDs.Ya ce ga masu gida, "za su sami manyan siffofi guda biyu a cikin kayan aiki ɗaya."
Dangane da rayuwar baturi, Klein ya ce baturan AAA guda biyu za su samar da sa'o'i 15 na ci gaba da amfani da gwajin gwaji da sa'o'i 6 na ci gaba da amfani da hasken walƙiya.Wannan ya isa ga masu amfani lokaci-lokaci, kamar yadda muka ce, yana da kyau a sami alamar baturi don ku san lokacin da ya yi ƙasa.
Ba mu kadai muke son NCVT-3 ba.Clint DeBoer, wanda ya rubuta akan ProToolReviews, ya bayyana cewa kayan aikin "Ko da kuna yin aikin lantarki lokaci-lokaci, kusan zaku iya samun shi cikin sauƙi."Ya kammala da cewa: “Wannan ingantaccen kayan aiki ne wanda zai iya yin abin da ya kamata kuma ya yi.Yayi kyau sosai.Zaɓi ɗaya.Ba za ku yi nadama ba.”
NCVT-3 kuma ya sami ingantaccen bita akan Amazon da Home Depot.Yawancin labaran da ba su da kyau a kan Amazon sun fito ne daga mutanen da suke son kayan aiki amma sun ji takaici cewa ba za a iya shigar da shi a cikin soket ba.Kamar yadda aka ambata a sama, wannan ba matsala ba ne saboda har yanzu yana iya gano halin yanzu kuma yana nuna shi a matsayin ƙananan ƙarfin lantarki (kuma ya sa ya dace da soket-proof soket da ake buƙata ta lambar).Don tabbatar da ainihin ƙarfin lantarki a kan soket, yana da sauƙi don kwance murfin kuma sanya tip na kayan aiki a gefen soket inda wayoyi suke.
NCVT-3 na musamman ne saboda ba za a iya toshe shi cikin soket ba.A kallo na farko, wannan yana da alama matsala ce, saboda yawancin sauran masu gwajin da ba su da alaƙa suna iya karanta wutar lantarki daga soket kawai ta shigar da shi a cikin buɗewa.Gaskiyar ita ce, saboda yana iya karanta ƙananan ƙarfin lantarki, NCVT-3 na iya zana halin yanzu daga waje da soket, wanda yake da mahimmanci yayin da ake hulɗa da kwasfa masu hana tamper wanda yanzu ake buƙata ta lambobin lantarki.Don shigar da filogi a cikin ɗaya daga cikin kwasfa, ana buƙatar matsa lamba daidai akan buɗewar fil biyu (wannan lamari ne na aminci ga yara).Tare da waɗannan kwasfa, na'urar gwajin wutar lantarki mara lamba na gargajiya baya aiki koyaushe saboda yana iya karanta daidaitattun ƙarfin lantarki kawai.Kamar yadda Bruce Kuhn, darektan haɓaka samfura, gwaji da aunawa a Klein, ya gaya mana, “Idan kuka sanya irin wannan majinin ya isa ya gano ƙarfin lantarki a waje' na soket mai hana tamper, to yana cikin cunkoson jama'a. akwatin lantarki.Waya mai zafi."2 Domin an ƙera NCVT-3 don gano daidaitaccen ƙarfin lantarki da ƙarancin wutar lantarki, lokacin da aka sanya shi a cikin buɗaɗɗen soket mai hana tamper, zai ɗauki daidaitaccen ƙarfin lantarki, amma daga nesa, yana nuna ƙarancin Voltage ne. har yanzu tabbatar da cewa soket yana raye.
Akwai maɓallan sarrafawa a gefen NCVT-3, wanda Tierney ya gaya mana mu kula.Ya yi gargadin cewa samfura masu maɓallai na gefe suna da sauƙin buɗewa lokacin da aka sanya su a cikin aljihu, wanda ba wai kawai ya ba da haushi ba, har ma yana haɓaka amfani da batir.Ɗaya daga cikin bambanci daga NCVT-3 shi ne cewa maɓallan suna jaye tare da saman;yawancin maɓallan irin wannan suna fitowa daga gefen kayan aiki kuma ana iya kunna su cikin sauƙi ba da gangan ba.Na yi amfani da NCVT-3 a cikin aljihuna na yini ɗaya, kuma bai taɓa buɗewa ba.
Wannan na'urar gwajin wutar lantarki guda biyu yayi kama da zaɓin mu ta mafi mahimmanci, amma wasu ƙananan bayanan sa sun fi ban haushi.
Idan Klein ba ya samuwa, muna ba da shawarar Milwaukee 2203-20 mai gano wutar lantarki tare da LED.Yana da ayyuka iri ɗaya da Klein NCVT-3, amma hasken walƙiya ba shi da haske kuma ba za a iya amfani da shi da kansa na mai gwadawa ba.Hakanan yana fitar da ƙarar ƙara mai ban mamaki (babu zaɓi na bebe).Wannan yana iya zama da amfani a wurin aiki mai hayaniya, amma bayan na shafe mintuna 45 ina duba wayoyi a cikin ginshiki, ƙarar ya isa ya sa ni ɗan hauka.
Duk da haka, Milwaukee na iya gano ƙananan ƙarfin lantarki da daidaitaccen ƙarfin lantarki, kuma babu wani canji na hannu a tsakanin su, don haka yana da sauƙin amfani kamar NCVT-3.
A cikin 2019, mun lura cewa yanzu Klein ya mallaki NCVT-4IR.Yana kama da zaɓin mu, amma kuma ya haɗa da aikin ma'aunin zafi da sanyio infrared.Mun yi imanin cewa wannan bai cancanci ƙarin farashi don amfanin gida na yau da kullun ba.
Mun kuma lura da samfura daga kamfanoni kamar Meterk, ToHayie, Taiss, da SOCLL.Waɗannan kayan aikin gama gari ne daga ƙananan kamfanoni.Muna jin cewa yana da aminci a ba da shawarar masu gwaji daga ingantattun masana'antun kayan aikin gwajin lantarki.
Mun gwada Klein NCVT-2, wanda yayi kama da NCVT-3.Har ila yau, samfurin nau'i-nau'i biyu ne wanda zai iya ganowa ta atomatik tsakanin jeri biyu, amma ba shi da LED;maɓallin kunnawa / kashewa yana alfahari da shi (don haka ana iya buɗe shi a cikin aljihu);kuma lamarin ba shi da wannan jin dadi.
Mun kuma ga Greenlee GT-16 da Sperry VD6505 suna amfani da bugun kira don zaɓar azanci tsakanin ƙananan ƙarfin lantarki da daidaitaccen ƙarfin lantarki.A lokacin gwajin da muka yi, mun gano cewa idan akwai wayoyi da yawa a yankin, waɗannan samfuran za su karɓi sigina daga wasu wayoyi, wanda hakan zai sa ya zama da wahala a gare mu mu san lokacin da hankali ya ragu don gano wayoyi da muke so kawai.Yana da wahala a iya ƙware dabarun bugun kiran hankali, kuma sun gwammace mafi sauƙi na Milwaukee da Kleins.
Greenlee TR-12A yana da ƙirar fil biyu musamman don ƙwanƙwasa masu hanawa, amma yana iya karanta daidaitattun ƙarfin lantarki maimakon ƙananan ƙarfin lantarki, don haka muna tsammanin NCVT-3 ya fi amfani.
Klein NCVT-1 yana gano daidaitaccen ƙarfin lantarki ne kawai.Na mallaki ɗaya tsawon shekaru da yawa kuma koyaushe na same shi daidai ne kuma abin dogaro, amma yana da ma'ana don samun samfurin wanda kuma zai iya gano ƙananan ƙarfin lantarki.
Mun tambayi Klein da ya bayyana daidai ƙa'idar aiki na mai gwada ƙarfin lantarki mara lamba.Kamfanin ya gaya mana: “Na'urar da ba ta tuntuɓar wutar lantarki tana aiki ta hanyar haifar da filin lantarki da aka jawo a kusa da madugu da ke da ƙarfi ta hanyar alternating current (AC).Gabaɗaya magana, Mafi girman ƙarfin wutar lantarki da ake amfani da shi ga jagorar, ƙarfin filin ƙarfin filin lantarki mai dacewa.Na'urar firikwensin a cikin kayan gwajin mara lamba yana amsawa gwargwadon ƙarfin filin filin lantarki da aka jawo.Dangane da wannan ka'ida, lokacin da ma'aunin wutar lantarki mara lamba yana kusa da madubin da ke da kuzari Lokacin da aka sanya shi, ƙarfin filin lantarki da aka ƙirƙira yana ba na'urar damar "sani" ko tana cikin filin ƙaramin ƙarfin lantarki ko filin ƙarfin lantarki."
Na ɗauki Klein NCVT-1 a kusa da gidana.Yana gano daidaitattun ƙarfin lantarki ne kawai.Nasarar gano wutar lantarki daga soket masu hana tamper kusan kashi 75%.
Doug Mahoney babban marubucin ma'aikaci ne a Wirecutter, yana rufe haɓakar gida.Ya yi aiki a fannin gine-gine mai tsayi na tsawon shekaru 10 a matsayin kafinta, mai kula da aiki da kuma mai kulawa.Yana zaune a wani gidan gona mai shekaru 250, kuma ya share shekaru hudu yana tsaftacewa da sake gina gidansa na baya.Yakan yi kiwon tumaki, yana kiwon saniya, yana shayar da shi kowace safiya.
A wannan shekara mun gwada berayen caca 33 don nemo 5 mafi dacewa don wasan waya ko mara waya, gami da wasu zaɓuɓɓuka masu rahusa.
Bayan fiye da sa'o'i 350 na bincike da gwaji na kayan aikin sama da 250, mun tattara mafi kyawun kit don gidan ku.
Babban abin sha maras giya yana ɗanɗano kamar hadadden hadaddiyar giyar giyar, kuma daidai yake biki.Mun sha 24 abubuwan sha marasa giya don nemo mafi kyau.

Gwajin jurewar wutar lantarki ana yin shi tare da tushen wutar lantarki mai girma da ƙarfin lantarki da mita na yanzu.Ana amfani da kayan aiki guda ɗaya da ake kira "tsarin gwajin matsa lamba" ko "hipot tester" don yin wannan gwajin.Yana amfani da madaidaitan ƙarfin lantarki zuwa na'ura kuma yana sa ido kan ɗigogi na halin yanzu.Halin halin yanzu na iya ɓata alamar kuskure.Mai gwadawa yana da kariyar wuce gona da iri.Wutar gwajin gwaji na iya zama ko dai kai tsaye ko na yanzu a mitar wuta ko wasu mitar, kamar mitar resonant (30 zuwa 300 Hz da aka ƙaddara ta kaya) ko VLF (0.01 Hz zuwa 0.1 Hz), lokacin dacewa.Ana ba da iyakar ƙarfin lantarki a cikin ma'aunin gwaji don takamaiman samfurin.Hakanan za'a iya daidaita ƙimar aikace-aikacen don sarrafa magudanar ruwa wanda ya samo asali daga tasirin ƙarfin abin gwajin.Tsawon lokacin gwajin ya dogara da buƙatun gwaji na mai kadara amma yawanci yakan kai mintuna 5.Wutar lantarki da aka yi amfani da shi, ƙimar aikace-aikacen da tsawon lokacin gwaji ya dogara da ƙayyadaddun buƙatun kayan aiki.Ma'auni na gwaji daban-daban sun shafi na'urorin lantarki na mabukaci, na'urorin lantarki na soja, igiyoyi masu ƙarfin lantarki, masu sauyawa da sauran na'urori.[2]

Nau'in kayan aikin hipot yoyon saitin ƙayyadaddun tafiya na yanzu yana kewayo tsakanin 0.1 da 20 mA[3] kuma mai amfani ya saita su bisa ga halayen gwaji da ƙimar aikace-aikacen wutar lantarki.Manufar ita ce zabar saitin yanzu wanda ba zai sa mai gwajin yin tafiya ta ƙarya yayin aikace-aikacen wutar lantarki ba, yayin da a lokaci guda, zaɓin ƙimar da ke rage yuwuwar lalacewa ga na'urar da ke ƙarƙashin gwaji idan fitarwa ko lalacewa ta faru.