Yadda za a yi amfani da multimeter?

Wutar Lantarki da na'urorin lantarki sune ilimomi da aka gina akan ma'aunin ma'auni na dukkan sigogin da'ira, neman alakar da ke tsakaninsu da ma'aunin tasiri a kan juna. Saboda haka, yana da mahimmanci don samun damar yin amfani da kayan aunawa na duniya - multimeters. Suna haɗa na'urori na musamman masu sauƙi: ammeter, voltmeter, ohmmeter da sauransu. Ta hanyar gajerun sunaye, wani lokaci ana kiran su avometers, kodayake kalmar “tester” ta fi yawa a yamma. Bari mu gano yadda ake amfani da multimeter kuma menene don?

Abubuwa

• 1 Manufa da ayyuka
• 2 Na'urar Multimeter
• 3 Auna ma'aunin lantarki
  • 3.1 Ƙaddamar ƙarfin halin yanzu
  • 3.2 Ma'aunin wutar lantarki
  • 3.3 Yadda ake auna juriya da multimeter
• 4 Duba abubuwan da ke cikin da'irori na lantarki
  • 4.1 Fahimtar Diodes da LEDs
  • 4.2 Duba transistor bipolar
  • 4.3 Yadda za a gwada transistor tasirin filin tare da mai gwadawa
  • 4.4 Yadda ake gwada capacitor tare da multimeter
• 5 Ci gaba da waya
• 6 Yadda ake amfani da multimeter a cikin mota

Manufa da ayyuka

An ƙera multimeter don auna manyan sigogi guda uku na kewayen lantarki: ƙarfin lantarki, halin yanzu da juriya. Zuwa wannan ainihin saitin ayyuka, ana ƙara hanyoyin bincika amincin mai gudanarwa da lafiyar na'urorin semiconductor. Ƙarin na'urori masu rikitarwa da tsada suna iya ƙayyade ƙarfin capacitors, inductance na coils, mita na sigina, har ma da zafin jiki na kayan lantarki da ake nazari. Dangane da ka'idar aiki, multimeters sun kasu kashi biyu:

1. Analog - wani tsohon nau'i wanda ya dogara da ammeter magnetoelectric, wanda aka haɗa shi da resistors da shunts don auna ƙarfin lantarki da juriya. Gwajin Analog ba su da arha, amma sun kasance ba daidai ba saboda ƙarancin shigar da bayanai. Sauran rashin lahani na tsarin analog sun haɗa da hankali na polarity da ma'auni marar layi.
   

   Gaba ɗaya duba na'urar analog

2. Digital - mafi inganci kuma na'urori na zamani. A cikin ƙirar gida na ɓangaren farashin tsakiyar, kuskuren da aka halatta bai wuce 1% ba, don samfuran ƙwararru - yiwuwar karkatar da ke tsakanin 0,1%. "Zuciya" na multimeter na'urar lantarki shine na'ura mai kwakwalwa tare da kwakwalwan kwakwalwa, na'urar sigina, dikodi da direban nuni. Ana nuna bayanai akan allo mara nauyi.

Kuskuren masu gwajin dijital na gida bai wuce 1% ba

Dangane da maƙasudi da ƙayyadaddun amfani, ana iya yin multimeter a cikin nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan za a iya yin amfani da su. Mafi yaɗuwar su ne:

1. Multimeter masu ɗaukar hoto tare da bincike sune mafi mashahuri duka a cikin rayuwar yau da kullun da kuma cikin ayyukan ƙwararru. Sun ƙunshi babban naúrar sanye take da batura ko mai tarawa, wanda aka haɗa masu sarrafawa-bincike masu sassauƙa. Don auna wani alamar wutar lantarki, ana haɗa binciken zuwa wani ɓangaren lantarki ko sashin da'irar, kuma ana karanta sakamakon daga nunin na'urar.
   

   Ana amfani da na'urori masu ɗaukar nauyi a cikin rayuwar yau da kullun da masana'antu: kayan lantarki, sarrafa kansa da lokacin ƙaddamarwa

2. Matsakaicin mita - a cikin irin wannan na'urar, lambobin sadarwa na masu bincike suna haɗuwa a kan jaws da aka ɗora a cikin bazara. Mai amfani yana yada su ta hanyar danna maɓalli na musamman, sa'an nan kuma ya ƙulla su a cikin sashe na sarkar da ake buƙatar aunawa. Sau da yawa, mitoci masu matsawa suna ba da damar haɗin ƙwararrun bincike masu sassaucin ra'ayi.
   

   Mitoci masu matsawa suna ba ku damar auna wutar lantarki ba tare da keta kewaye ba

3. Matsakaicin multimeters ana amfani da su ta hanyar madaidaicin tushen gida na yanzu, ana bambanta su ta daidaitattun daidaito da ayyuka masu faɗi, suna iya aiki tare da hadadden abubuwan haɗin rediyo-lantarki. Babban filin aikace-aikacen shine ma'auni a cikin haɓakawa, samfuri, gyarawa da kiyaye na'urorin lantarki.
   

   Mafi yawan lokuta ana amfani da na'urori masu a tsaye ko na benci a dakunan gwaje-gwajen lantarki

4. Oscilloscopes-multimeters ko scopmeters - hada kayan aunawa guda biyu lokaci guda. Suna iya zama duka šaukuwa da kuma tsaye. Farashin irin waɗannan na'urori suna da tsada sosai, wanda ya sa su zama kayan aikin injiniya na ƙwararru zalla.
   

   Scopmeters sune mafi ƙwararrun kayan aiki kuma an ƙirƙira su don magance matsala a cikin injinan lantarki, layukan wutar lantarki da masu canza wuta.

Kamar yadda kake gani, ayyukan na'urar multimeter na iya bambanta a cikin kewayon da ya dace kuma ya dogara da nau'i, nau'in nau'i, da nau'in farashin na'urar. Don haka, multimeter don amfanin gida ya kamata ya samar da:

• Ƙayyade amincin mai gudanarwa;
• Nemo "sifili" da "lokaci" a cikin gidan yanar gizon lantarki;
• Auna madaidaicin ƙarfin lantarki na yanzu a cikin hanyar sadarwa ta gida;
• Ma'auni na ƙarfin lantarki na ƙananan wutar lantarki na DC (batura, masu tarawa);
• Ƙaddamar da alamun asali na lafiyar na'urorin lantarki - ƙarfin halin yanzu, juriya.

Amfani da gida na multimeter yawanci yana zuwa ne don gwada wayoyi, duba lafiyar fitilun wuta, da tantance ragowar ƙarfin lantarki a cikin batura.

A cikin rayuwar yau da kullun, ana amfani da na'urori masu yawa don gwada wayoyi, duba batura da na'urorin lantarki.

A lokaci guda, abubuwan da ake buƙata don samfuran ƙwararru sun fi tsauri. An ƙaddara su daban don kowane lamari na musamman. Daga cikin manyan fasalulluka na masu gwajin ci gaba, ya kamata a lura:

• Yiwuwar cikakkiyar gwaji na diodes, transistor da sauran na'urorin semiconductor;
• Ƙayyade ƙarfin ƙarfi da juriya na ciki na capacitors;
• Ƙayyade ƙarfin batura;
• Ma'auni na takamaiman halaye - inductance, mitar sigina, zazzabi;
• Ability don aiki tare da babban ƙarfin lantarki da na yanzu;
• Babban ma'auni daidai;
• Dogara da karko na na'urar.

Yana da mahimmanci a tuna cewa multimeter na'urar lantarki ce mai rikitarwa, wanda ya kamata a kula da shi sosai kuma a hankali.

Na'urar Multimeter

Yawancin multimeters na zamani suna sanye da cikakkun bayanai waɗanda ke bayyana jerin ayyuka don aiki tare da na'urar. Idan kuna da irin wannan takarda - kar a yi watsi da shi, ku san duk nuances na samfurin na'urar. Za mu yi magana game da manyan abubuwan da ke amfani da kowane multimeter.

Madaidaicin sauyawa ya haɗa da: juriya, ma'auni na yanzu da ƙarfin lantarki, da kuma gwajin ƙarfin lantarki

Don zaɓar yanayin aiki, ana amfani da maɓalli, yawanci haɗe da maɓalli (“Kashe” matsayi). Don kayan aikin gida, yana ba ku damar saita iyakar ma'auni masu zuwa:

• Wutar lantarki: 0,2V; 2 V; 20 V; 200 V; 1000 V;
• Wutar lantarki: 0,2V; 2 V; 20 V; 200 V; 750 V;
• DC halin yanzu: 200 uA; 2 mA; 20 mA; 200 mA; 2 A (na zaɓi); 10 A (matsayi daban);
• Alternating current (wannan yanayin baya samuwa a duk multimeters): 200 μA; 2 mA; 20 mA; 200 mA;
• Juriya: 20 ohm; 200 ohm; 2 khm; 20 kOhm; 200 kOhm; 2 MΩ; 20 ko 200 MΩ (na zaɓi).

Wani tanadi na daban yana aiki don gwada aikin diodes da ƙayyade amincin mai gudanarwa. Bugu da ƙari, akwai soket don gwada transistor zuwa gefen maɓalli mai wuya.

Gabaɗaya tsarin sauya fasalin kasafin kuɗi 

Amfani da na'urar yana farawa tare da saita sauyawa zuwa matsayin da ake so. Sannan ana haɗa masu binciken. Akwai wurare guda biyu na yau da kullun: na tsaye da a kwance.

Mai haɗin haɗin da aka yi masa alama tare da alamar ƙasa kuma rubutun COM ba shi da kyau ko ƙasa - an haɗa wayar baƙar fata da shi; mai haɗawa, wanda aka tsara azaman VΩmA, an tsara shi don auna juriya, ƙarfin lantarki, da na yanzu, wanda bai wuce 500 mA ba; Mai haɗa mai lamba 10 A an tsara shi don auna halin yanzu a cikin kewayon daga 500mA zuwa ƙayyadadden ƙimar

Tare da tsari na tsaye, kamar a cikin hoton da ke sama, an haɗa masu binciken kamar haka:

• A cikin babban haɗin haɗi - bincike na "tabbatacce" a cikin yanayin auna ƙarfin halin yanzu (har zuwa 10 A);
• A cikin mai haɗin tsakiya - binciken "tabbatacce" a duk sauran hanyoyin;
• A cikin ƙananan mai haɗawa - binciken "mara kyau".

A wannan yanayin, ƙarfin halin yanzu lokacin amfani da soket na biyu kada ya wuce 200 mA

Idan masu haɗin suna a kwance, a hankali bi alamomin da aka buga akan hars ɗin multimeter. Zuwa na'urar da aka nuna a cikin adadi, an haɗa masu binciken kamar haka:

• A cikin mahaɗin hagu na hagu - binciken "tabbatacce" a cikin babban yanayin ma'auni na yanzu (har zuwa 10 A);
• A cikin haši na biyu a gefen hagu - binciken "tabbatacce" a cikin daidaitaccen yanayin ma'auni (har zuwa 1 A);
• Haɗi na uku a gefen hagu shine binciken "tabbatacce" a duk sauran hanyoyin;
• A cikin mahaɗin da ke gefen dama akwai binciken "mara kyau".

Babban abu anan shine koyon yadda ake karanta alamomin kuma ku bi su. Ka tuna cewa idan ba a lura da polarity ba ko kuma yanayin auna ba daidai ba ne aka zaɓa, ba za ka iya samun sakamakon da ba daidai ba kawai, amma kuma lalata na'urar gwaji.

Auna ma'aunin lantarki

Akwai keɓantaccen algorithm don kowane nau'in ma'auni. Yana da mahimmanci a san yadda za a yi amfani da mai gwadawa, wato, don fahimtar wane matsayi don saita sauyawa, zuwa wace kwasfa don haɗa masu bincike, yadda za a kunna na'urar a cikin wutar lantarki.

Jadawalin haɗin gwaji don auna halin yanzu, ƙarfin lantarki da juriya

Ƙaddamar ƙarfin halin yanzu

Ba za a iya auna kimar a tushen ba, tunda yana da halayen sashe na kewaye ko wani mabukaci na wutar lantarki. Sabili da haka, an haɗa multimeter a cikin jerin a cikin kewaye. A kusan magana, na'urar aunawa tana maye gurbin wani ɓangaren madugu a cikin rufaffiyar tsarin mabukaci.

Lokacin auna halin yanzu, dole ne a haɗa multimeter a jere a cikin kewaye

Daga dokar Ohm, mun tuna cewa ana iya samun ƙarfin halin yanzu ta hanyar rarraba wutar lantarki ta hanyar juriya na mabukaci. Don haka, idan saboda wasu dalilai ba za ku iya auna sigina ɗaya ba, to ana iya ƙididdige shi cikin sauƙi ta hanyar sanin sauran biyun.

Ma'aunin wutar lantarki

Ana auna ƙarfin lantarki ko dai a tushen yanzu ko kuma a mabukaci. A cikin akwati na farko, ya isa ya haɗa ingantaccen bincike na multimeter zuwa "plus" na wutar lantarki ("lokaci"), da kuma mummunan bincike zuwa "rage" ("sifili"). Multimeter zai ɗauki nauyin mabukaci kuma ya nuna ainihin ƙarfin lantarki.

Don kar a rikitar da polarity, muna haɗa binciken baƙar fata zuwa jack ɗin COM da abubuwan cire tushen, da jan binciken zuwa mai haɗin VΩmA da ƙari.

A cikin akwati na biyu, ba a buɗe kewaye ba, kuma na'urar tana haɗa da mabukaci a layi daya. Don multimeters na analog, yana da mahimmanci don kiyaye polarity, dijital idan akwai kuskure zai nuna kawai mummunan ƙarfin lantarki (misali, -1,5 V). Kuma, ba shakka, kar a manta cewa ƙarfin lantarki shine samfurin juriya da halin yanzu.

Yadda ake auna juriya da multimeter

Ana auna juriyar madugu, nutse ko kayan lantarki tare da kashe wuta. In ba haka ba, akwai babban haɗarin lalacewa ga na'urar, kuma sakamakon auna zai zama kuskure.

Idan an san ƙimar juriya da aka auna, to, an zaɓi iyakar ma'auni fiye da ƙimar, amma a kusa da shi.

Don ƙayyade ƙimar ma'aunin, kawai haɗa masu binciken zuwa abokan hulɗa na kashi - polarity ba kome ba. Kula da fa'idodin ma'auni - ohms, kilooms, megaohms ana amfani da su. Idan ka saita sauyawa zuwa "2 MΩ" kuma kayi ƙoƙarin auna resistor 10-ohm, "0" za a nuna akan sikelin multimeter. Muna tunatar da ku cewa ana iya samun juriya ta hanyar rarraba wutar lantarki ta halin yanzu.

Duba abubuwan da ke cikin da'irori na lantarki

Duk wani hadadden na'urar lantarki ko ƙasa da haka ya ƙunshi saitin abubuwan da aka haɗa, waɗanda galibi ana sanya su akan allon da'ira da aka buga. Yawancin raguwa suna faruwa daidai ta hanyar gazawar waɗannan abubuwan, alal misali, lalatawar thermal na resistors, "rushewa" na haɗin gwiwar semiconductor, bushewar electrolyte a cikin capacitors. A wannan yanayin, an rage gyaran gyaran don gano kuskure da maye gurbin sashi. Wannan shi ne inda multimeter ya zo da amfani.

Fahimtar Diodes da LEDs

Diodes da LEDs ɗaya ne daga cikin mafi sauƙin abubuwan rediyo dangane da mahaɗin semiconductor. Babban bambanci tsakanin su shine kawai saboda gaskiyar cewa semiconductor crystal na LED yana iya fitar da haske. Jikin LED ɗin a bayyane ne ko mai ɗaukar nauyi, wanda aka yi da wani fili mara launi ko launi. Diodes na yau da kullun ana rufe su a cikin ƙarfe, filastik ko gilashin gilashi, yawanci ana fentin su da fenti.

Na'urorin Semiconductor sun haɗa da varicaps, diodes, zener diodes, thyristors, transistor, thermistors da na'urori masu auna firikwensin Hall.

Siffar siffa ta kowane diode shine ikon wuce halin yanzu a hanya ɗaya kawai. A tabbatacce electrode na sashin ana kiransa anode, mummunan wanda ake kira cathode. Ƙaddamar da polarity na jagorancin LED yana da sauƙi - ƙafar anode ya fi tsayi, kuma ciki ya fi girma fiye da na cathode. Dole ne a bincika polarity na diode na al'ada akan Yanar Gizo. A cikin zane-zane, ana nuna anode ta triangle, cathode ta tsiri.

Hoton diode akan zane mai kewayawa

Don duba diode ko LED tare da multimeter, ya isa ya saita canjin zuwa yanayin "ringing", haɗa nau'in anode zuwa ingantaccen bincike na na'urar, da cathode zuwa mummunan. A halin yanzu zai gudana ta diode, wanda za a nuna a kan nuni na multimeter. Sa'an nan kuma ya kamata ka canza polarity kuma ka tabbata cewa halin yanzu ba ya gudana a cikin kishiyar shugabanci, wato, diode ba a "karye".

Duba transistor bipolar

Sau da yawa transistor bipolar ana wakilta azaman diode biyu da aka haɗa. Yana da abubuwa guda uku: emitter (E), mai tarawa (K) da tushe (B). Dangane da nau'in gudanarwar da ke tsakanin su, akwai transistor mai tsarin "pnp" da "npn". Tabbas, kuna buƙatar bincika su ta hanyoyi daban-daban.

Hoton emitter, tushe da yankuna masu tarawa akan transistor bipolar

Jerin don duba transistor tare da tsarin npn:

1. An haɗa ingantaccen bincike na multimeter zuwa tushe na transistor, an saita canjin zuwa yanayin "ringing".
2. Binciken da ba daidai ba ya taɓa emitter da mai tarawa a cikin jerin - a cikin duka biyun, na'urar dole ne ta gano yanayin halin yanzu.
3. An haɗa bincike mai kyau zuwa mai tarawa, da kuma mummunan bincike ga emitter. Idan transistor yana da kyau, nunin multimeter zai kasance ɗaya, idan ba haka ba, lambar zata canza kuma / ko ƙara zai yi sauti.

Ana duba transistor tare da tsarin pnp ta hanya iri ɗaya:

1. An haɗa bincike mara kyau na multimeter zuwa tushe na transistor, an saita canjin zuwa yanayin "ringing".
2. Kyakkyawan bincike yana taɓa emitter da mai tarawa a jeri - a cikin duka biyun, na'urar dole ne ta yi rikodin yanayin halin yanzu.
3. An haɗa bincike mara kyau zuwa mai tarawa, kuma ingantaccen bincike ga emitter. Sarrafa rashin halin yanzu a cikin wannan da'irar.

Za a sauƙaƙe aikin sosai idan multimeter yana da bincike don transistor. Gaskiya ne, ya kamata a la'akari da cewa ba za a iya bincika transistor masu ƙarfi a cikin bincike ba - sakamakon su kawai ba zai dace da kwasfa ba.

Don gwada transistor bipolar akan na'urori masu yawa, ana ba da bincike galibi

Binciken ya kasu kashi biyu, kowannensu yana aiki da transistor na wani tsari. Shigar da transistor a cikin ɓangaren da ake so, lura da polarity (tushe - a soket "B", emitter - "E", mai tarawa - "C"). Saita sauyawa zuwa matsayi hFE - ma'aunin riba. Idan nuni ya kasance ɗaya, transistor yayi kuskure. Idan adadi ya canza, ɓangaren al'ada ne, kuma ribarsa ta dace da ƙayyadadden ƙimar.

Yadda za a gwada transistor tasirin filin tare da mai gwadawa

Transistor-tasirin filin sun fi rikitarwa fiye da transistor bipolar, tunda a cikinsu ana sarrafa siginar ta hanyar wutar lantarki. An raba irin waɗannan transistor zuwa n-channel da p-channel, kuma ƙarshen su ya sami sunaye kamar haka:

• Kurkuku (Z) - ƙofar (G);
• Gabas (I) - tushen (S);
• Ruwa (C) - magudanar ruwa (D).

Ba za ku iya amfani da binciken da aka gina a cikin multimeter don gwada tasirin tasirin filin ba. Dole ne mu yi amfani da hanya mai rikitarwa.

Misali na duba lambobi na transistor mai tasirin filin tare da mai gwadawa

Bari mu fara da transistor n-channel. Da farko, suna cire tsayayyen wutar lantarki daga gare ta ta hanyar taɓa tashoshi tare da resistor na ƙasa. Sannan an saita multimeter zuwa yanayin "ringing" kuma ana aiwatar da jerin ayyuka masu zuwa:

1. Haɗa ingantaccen bincike zuwa tushen, mummunan bincike zuwa magudanar ruwa. Ga yawancin transistor masu tasirin filin, ƙarfin lantarki a wannan mahaɗin shine 0,5-0,7 V.
2. Haɗa ingantaccen bincike zuwa ƙofar, mummunan bincike zuwa magudanar ruwa. Ya kamata mutum ya kasance akan nuni.
3. Maimaita matakan da aka nuna a cikin sakin layi na 1. Dole ne ku gyara canjin wutar lantarki (zai yiwu duka biyu su sauke da karuwa).
4. Haɗa ingantaccen bincike zuwa tushen, mummunan bincike zuwa ƙofar. Ya kamata mutum ya kasance akan nuni.
5. Maimaita matakan da ke cikin sakin layi na 1. Wutar lantarki ya kamata ya koma ainihin ƙimarsa (0,5-0,7 V).

Duk wani sabani daga daidaitattun ƙimar yana nuna rashin aiki na transistor tasirin filin. Ana duba ɓangarorin da ke da tashar p-tashar a cikin jeri ɗaya, suna canza polarity zuwa akasin kowane mataki.

Yadda ake gwada capacitor tare da multimeter

Da farko, ya kamata ka ƙayyade ko wane capacitor za ku gwada - polar ko non-polar. All electrolytic da wasu m-state capacitors ne iyakacin duniya, kuma wadanda ba iyakacin duniya, a matsayin mai mulkin, fim ko yumbu, da yawa sau kasa capacitance (nano- da picofarads).

Capacitor na'ura ce mai tasha biyu mai ma'auni ko ma'auni na iya aiki da ƙarancin aiki, kuma ana amfani dashi don tara cajin filin lantarki.

Idan an riga an yi amfani da capacitor (misali, ana siyar da shi daga na'urar lantarki), to dole ne a cire shi. Kada ka haɗa lambobin sadarwa kai tsaye tare da waya ko screwdriver - wannan zai fi dacewa da kai ga karyewar ɓangaren, kuma a mafi munin - zuwa girgiza wutar lantarki. Yi amfani da kwan fitila mai walƙiya ko juriya mai ƙarfi.

Ana iya raba gwajin capacitor zuwa nau'i biyu - ainihin gwajin aiki da ma'aunin ƙarfin aiki. Duk wani multimeter zai jimre da aikin farko, kawai masu sana'a da kuma "ci-gaba" na gida za su jimre da na biyu.

Girman ƙimar capacitor, raguwar ƙimar nunin yana canzawa.

Don duba lafiyar ɓangaren, saita canjin multimeter zuwa yanayin "ringing" kuma haɗa masu binciken zuwa lambobin capacitor (lura da polarity idan ya cancanta). Za ku ga lamba akan nunin, wanda nan da nan zai fara girma - wannan shine baturin multimeter yana cajin capacitor.

Don bincika capacitance na capacitor, ana amfani da bincike na musamman.

Hakanan ba shi da wahala a auna ƙarfin aiki tare da multimeter "ci gaba". Bincika a hankali hars ɗin capacitor kuma nemo ƙirar ƙarfin aiki a cikin micro-, nano-, ko picofarads. Idan maimakon raka'a na iya aiki ana amfani da lambar lambobi uku (misali, 222, 103, 154), yi amfani da tebur na musamman don tantance shi. Bayan kayyade ma'auni mai mahimmanci, saita sauyawa zuwa matsayin da ya dace kuma saka capacitor a cikin ramukan kan harka na multimeter. Bincika idan ainihin ƙarfin ya dace da ƙarfin ƙididdiga.

Ci gaba da waya

Duk da multitasking na multimeters, babban amfani da gidan su shine ci gaba da wayoyi, wato, ƙaddarar amincin su. Zai yi kama da cewa zai iya zama mafi sauƙi - Na haɗa iyakar biyu na kebul tare da bincike a cikin yanayin "tweter", kuma shi ke nan. Amma wannan hanya za ta nuna kawai kasancewar lamba, amma ba yanayin mai gudanarwa ba. Idan akwai hawaye a ciki, wanda ke haifar da walƙiya da ƙonewa a ƙarƙashin kaya, to, ɓangaren piezo na multimeter zai ci gaba da yin sauti. Yana da kyau a yi amfani da ginanniyar ohmmeter.

Siginar sauti, in ba haka ba ana kiranta da "buzzer", yana hanzarta aiwatar da bugun kira

Saita maɓalli na multimeter zuwa matsayin "ohm ɗaya" kuma haɗa masu binciken zuwa ƙarshen ƙarshen madugu. Juriya na yau da kullun na waya mai tsayin mita da yawa shine 2-5 ohms. Haɓaka juriya zuwa 10-20 ohms zai nuna ɓarna na madubi, kuma ƙimar 20-100 ohms suna nuna raunin waya mai tsanani.

Wani lokaci lokacin duba waya da aka shimfiɗa a bango, yin amfani da multimeter yana da wahala. A irin waɗannan lokuta, yana da kyau a yi amfani da masu gwajin da ba na sadarwa ba, amma farashin waɗannan na'urori yana da tsada sosai.

Yadda ake amfani da multimeter a cikin mota

Kayan lantarki na ɗaya daga cikin ɓangarori masu rauni na motar, wanda ke da matukar damuwa ga yanayin aiki, bincike akan lokaci da kulawa. Sabili da haka, multimeter ya kamata ya zama wani ɓangare na kayan aiki na kayan aiki - zai taimaka wajen gano rashin aiki, ƙayyade abubuwan da ya faru da hanyoyin gyara hanyoyin.

Multimeter na'ura ce mai mahimmanci don bincikar tsarin lantarki na abin hawa

Ga ƙwararrun ƙwararrun masu ababen hawa, ana samar da na'urori masu yawa na motoci na musamman, amma a mafi yawan lokuta samfurin gida zai isa. Daga cikin manyan ayyukan da ta kamata ta warware:

• Kula da wutar lantarki a kan baturi, wanda ke da mahimmanci musamman bayan dogon lokaci na mota ko kuma idan aikin janareta bai yi daidai ba;
• Ƙaddamar da ɗigogi na halin yanzu, bincika gajerun hanyoyi;
• Tabbatar da ingancin iskar wutar lantarki, mai farawa, janareta;
• Duba gadar diode na janareta, abubuwan da ke cikin tsarin kunna wutar lantarki;
• Kula da lafiyar na'urori masu auna firikwensin da bincike;
• Ƙayyade amincin fuses;
• Duba fitulun wuta, kunna maɓalli da maɓalli.

Matsalar da yawancin masu ababen hawa ke fuskanta shine fitar da baturin multimeter a mafi ƙarancin lokaci. Don guje wa wannan, kawai kashe na'urar nan da nan bayan amfani kuma ɗauki farewar baturi tare da kai.

Multimeter na'ura ce mai dacewa kuma mai dacewa, wanda ba makawa a cikin rayuwar yau da kullun da kuma cikin ƙwararrun ayyukan ɗan adam. Ko da tare da ainihin matakin ilimi da basira, yana iya sauƙaƙa ganewar asali da gyaran kayan lantarki. A cikin ƙwararrun hannaye, mai gwadawa zai taimaka warware mafi rikitarwa ayyuka - daga sarrafa mitar sigina zuwa haɗaɗɗen gwajin kewaye.

An rufe tattaunawa don wannan shafin