Kodi kufufuza kulimbikira multimeter: pakuti malangizo kayesedwe

Nkhani zimenezi zikunena mmene kuyesa kulimbikira multimeter a. Komanso akhoza kuyesa panopa, ndi voteji pakati pa mfundo ziwiri, ndi prozvanivat madera. Malinga mtundu wa chipangizo, mukhoza kuyigwiritsa ntchito kukayendera diodes, transistors ndi wailesi zina zambiri.

Kodi multimeter?

Poyamba ntchito oyimba (analogi) mita, koma tsopano ambiri kugwiritsa digito monga yabwino.

Cholozera chida akugwiritsabe ntchito ndi akatswiri. Iye amagwira ntchito bwino mu uthunthu wa mphepo ndi minda atomu, sizikusoweka ndi yoyenda yokha mphamvu okwanira, popanda zomwe multimeters digito sangagwire. Pankhaniyi, ndi lolondola mawu awo Pamlingo waukulu motengera avale wa mabatire. Iwo akhoza kuonongeka ndi kumaliseche electrostatic kuti si kusokoneza Tester analogi.

Multimeter oyimba ntchito ammeter okonzeka ndi masiwichi, shunts ndi dividers voteji, kulola kuti kusinthana modes ntchito zipangizo zosiyanasiyana. Koma chipangizo digito amasonyeza zotsatira za kufanana ndi kuwerengetsa kusiyana magawo anayeza abwino.

Chikhazikitso cha zipangizo opaleshoni

Pakuti aliyense mita, makhalidwe amene ali osiyana ndi ena, ali miyezo yake yeniyeni, koma pali malamulo kuvomerezedwa kwa mitundu yonse ya zipangizo.

Kupita ku wina anamanga-mu chipangizo, komanso chofunika chingwe osiyanasiyana magawo limagwiritsa ntchito lophimba wina.

Miyezo anapangidwa ndi wokhudza kumam'phunzitsa zitsulo ndi amangomvera lotsekedwa ndi ochititsa lapansi.

The anayeza chizindikiro mtengo ayenera kukhala mu lophimba osiyanasiyana anakhazikitsa. Miyezo anapangidwa choyamba pa magulu apamwamba, kenako kusinthana zikusintha molondola amawathandiza.

voltmeter The chikugwirizana ndi mfundo ziwiri ndi zimphamvu osiyana.

Kuyeza mwamphamvu panopa amalenga kusiyana mu dera magetsi ndi ammeter olumikizidwa kwa izo.

Fundo anali anayeza pa mchitidwe wa, sakukhudzidwa ndi dera, ndi kudutsa izo ndi magetsi ku anamanga-wagawo batire.

Kufufuzanso waya wakuda chikugwirizana kwa Com Jack ndi mzati "-", ndi wofiira - kuti VΩmA Jack kuti mzati positive.

Zikupezeka zitsanzo zosiyanasiyana za multimeters, mbali zosiyanasiyana za ntchito. Aliyense wa iwo malangizo Ufumuyo wopanga: Kodi kuyeza ndi kusinthana modes.

zida DMM

Maziko a chamoyo ambiri a zanyengo ndi limodzi. Pangakhale zithunzi yosiyaniranapo, malire muyeso ndi ntchito zina. kasamalidwe ndi ulamuliro zinthu zonse zili pa gulu kutsogolo: kusinthana modes ndi magulu, LCD, zolumikizira kwa probes.

Zipangizo zotsogola basi kusankha muyeso osiyanasiyana.

Probes anapangidwa kuti kufala chizindikiro kwa magetsi dera chipangizo zinthu. Kwa iwo, mu chipangizo ndi mipata atatu pafupi. Mu muyeso wa nthawi zonse anakhalabe yekha ndi chogwirira insulated.

Mfundo ntchito

mita yamagetsi mu zitsanzo zambiri otsika mapeto akuthamanga pa Chip 1CL7106.

Pamene anayeza voteji chizindikiro umaperekedwa kwa lophimba kuti athandizira 31 kudzera ndi resistor R17.

Kuyeza kukula kwa DC dera olumikizidwa kwa kusiyana multimeter. Amperage anazindikira resistors malingana osiyanasiyana anakonzeratu, ndiye voteji dontho kwa iwo athandizira 32.

chithunzi The amaonetsera ntchito zofunika. zitsanzo zambiri ndi owonjezera. Amene mita bwino, aliyense wosuta wasankha, malingana limatchula za muyeso wa.

kayesedwe dera kukaniza

Ziribe kanthu mitundu zimene anali multimeter, ohmmeter ntchito ndi pafupifupi. Nthawi zambiri kufufuzidwa mothandizidwa ndi resistors, tiransifoma, inductors ndi Kutukula wa lama fuyusi ndi. Pansipa pali chithunzi chidule cha resistors muyeso.

Pali chagwiritsidwa kutchulidwa resistors R1 ... R6 ndi voteji galimoto R101 ndi R103. Mu mode muyeso ndipo akuyerekeza mawu onena athandizira voteji chofanana ndi chiŵerengero cha mpandawo ndi Buku resistances.

chipangizo ntchito kuti azindikire chiphwanya mu unyolo, kuwonongedwa kwa mbale capacitor, poona kukhulupirika kwa ochititsa mabuku pa matabwa amagetsi.

Kodi kuyeza kukana?

Kodi kufufuza kulimbikira multimeter, chonde werengani malangizo, koma njira Sizachilendo zitsanzo zambiri. Pa kukana Tester gawo ili yodziwika ndi "Omega". Mu zitsanzo wamba mtundu M832 M83h, MAS83x muyeso malire anapereka 5: 200 ohm, 2 K, 20 K, 200 K, 2 M. Komanso, 6-udindo ntchito unyolo mosalekeza. buzzer ndi adamulowetsa pamene kulimbikira pakati pa probes wa zosakwana 50 ohms. Pa chipangizo awo interconnecting amasonyeza kukana mtengo pang'ono pamwamba ziro. Pamene anayeza phindu la kukana yaing'ono, mtengo ndi subtracted ku kuwerenga.

Mwachitsanzo, ngati resistor amene kukana pafupifupi 1.5-7 K multimeter kuona M832 kusankha malire osiyanasiyana 20 K.

Mosiyana ndi zipangizo zina, ndi ohmmeter angathe kuyeza ndi kukana osadziwika pa osiyanasiyana iliyonse, Sudzatitsogolera kuti linalephera. Ngati kolowera si zizigwirizana moyenera, chophimba adzakhala logwirana imodzi kapena ziro. Mbali yoyamba m'pofunika kuwonjezera malire chapamwamba chingwe osiyanasiyana, ndipo lachiwiri - kuti ndichepe.

Samalani! Musanayambe fufuzani multimeter kukana, oyamba zambiri nkhawa manja onse moyo mbali ndi malo probes. Chifukwa, resistor ndi chimaonekera ndipo thupi limenelo anayambitsanso kulakwitsa mu kuwerenga. N'zosangalatsa makamaka pamene mtengo mwadzina amayezedwa megohms. mfundo linanena bungwe ndipo mukhoza kugwira kafukufuku ndi dzanja limodzi lokha. Lamulo limeneli ziyenela kuyan'anidwa pamene kudziyesa zigawo pakompyuta.

Pamene anakonza zipangizo zamagetsi kawirikawiri chofunika kuyeza kukana wa resistor soldered mu dera la. Kuti kuwerenga molondola, m'pofunika unsolder imodzi mosiyana. Kuyesa dera adzakhala zigwirizana yekha wa ohmmeter ndi resistor. Ngati soldered dera la, kulimbikira pakati pa malo ndi mbali zina wailesi adzakhala mwachidule. Ngati katunduyo ali kwambiri kuzimva, choyezera izo choyamba ayenera kukhala vypayat kwathunthu.

CHITSANZO kukana kayesedwe

Amafuna kuyeza kulimbikira koyilo, amene sakudziwika chipembedzo. Nthawi zambiri, malire chapamwamba ndi pazipita. Pamene lophimba chikuyambika kuti "2M" ndi olumikizidwa kwa koyilo malo kafukufuku zeroes kuwonetsedwa pa zenera. Izi zikutanthauza kuti magetsi kukana coils, koma muyeso osiyanasiyana anasankha sizolondola.

Ndiye muyenera anapereka lophimba kuti "200 K" womwe ndi osiyanasiyana 0-200 K ndi kugwirizana multimeter probes kachiwiri. Kufunika kukana adzakhala kuwonetseredwa, umene uli wofanana 00,5 ohms. Ngati umboni pamaso pa mfundo decimal pali ziro, ndiye mukufuna kuchepetsa chingwe osiyanasiyana kachiwiri. Udindo wotsatira wa chipangizo lophimba adzatero 0,73 ohms. Khalidwe limeneli salinso choncho.

Ngati mukufuna chifukwa zolondola, m'pofunika kuchepetsa osiyanasiyana kwa 0-2 ohms nuyese kachiwiri. Pa 0,751 ohms adzakhala kuwonetsedwa.

Ngati inu kusinthana chida chimadziwonetserako "1" kuyeza osiyanasiyana 0-200 ohms, kutanthauza kuti mtengo anayeza kuposa malire chapamwamba.

Pamaso prozvanivat koyilo multimeter pamaso pa phompho, m'pofunika kukhazikitsa lophimba kuti mode izi, ndiyeno kulumikiza mayeso kumabweretsa mapeto ake. Pamaso pa mbendera phokoso limasonyeza kuti dera ndi ntchito. Ngati buzzer "chete", ndiye kuti koyilo breakage.

Probes kwa multimeter

Probes mu testers bajeti simuli a high quality, ngakhale kuti ena a iwo akuwoneka zedi. Pamene inu kugula ayenera anasankha ngati kuti waya ndi zotanuka ndi unachitikira mwamphamvu pa kulowa malo.

malekezero conductive anapangidwa mu mawonekedwe a masingano, kuti athe kubaya waya kutchinjiriza kapena kupeza mfundo mu tchipisi ndi sitepe yaing'ono. Nkhani ntchito mkuwa, zomwe ndi bwino akugwirizira m'mphepete ndi. Komanso, singano chisindikizo kusiya malo.

Kuzizira waya kutchinjiriza uyuma ndi zovuta kugwiritsa ntchito chida cha.

Wina drawback - wolakwika kukhudzana mu zitsulo chipangizo. Pamene machenjerero buzzer nthawi zambiri anataya.

Probes kwa mita zambiri kubweretsa kwa muyezo ndi manja awo. Kuti zimenezi zitheke, ndi mawaya soldered kwa Onyamula Zazitali Ayi ndi zolumikizira mu kagawo anasankha ena. nsonga ayenera zaludit kuti pamene inu alemba pa nsonga ya muyeso wa mtengo kukana zimadalira pa kuthamanga chakudya.

Iwo m'pofunika m'malo waya ndi mtanda gawo zazikulu kuti kuchepetsa kukana kwawo. The mawaya kumumanga m'mitolo kukana 0.2-0.5 ohms, ndipo nthawizina apamwamba.

Chongani ohmmeter patsogolo ntchito

Mu ntchito mita ochititsa kafukufuku avale, izi zimakhudza zotsatira muyeso ( "kudumpha" umboni). Patsogolo ntchito iwo zifunike. Kuti tichite zimenezi, chida lophimba anayamba osiyanasiyana wotsikitsitsa ndi yochepa circuited ndi probes mzake. Pambuyo palpated ochititsa ake insulated. Pamene kukhudzana osauka mkati anasonyeza adzakhala kusokera kuwerenga. Mukhozanso fufuzani dipstick mu mode mosalekeza. Ngati buzzer idzapita ndi kukonzanso kuoneka, zikutanthauza kulankhula osadalirika.

mphamvu kotunga

chipangizo ndi anaikapo "Krona" batire 9 V. Ngati mita chophimba anaonekera chizindikiro batire, izo zikusonyeza kuti wafa ndipo lifunika m'malo. Apo ayi, kuwerenga adzakhala pachithunzichi.

Pa ena multitester kumeneko GWIRANI batani. Atamukakamiza, ndi kuwerenga zinalembedwa kuwerenga mayiko. Kupita ku ntchito bwinobwino, m'pofunika kuti akanikizire batani.

Pomaliza

Aliyense multimeter chitsanzo chogulitsidwa ndi malangizo amene ayenera mosamala, chifukwa mtundu uliwonse wa chipangizo ali peculiarities yake.

Musanayambe fufuzani multimeter kukana kuona kufunika kwake idzatha. Ngati phindu la ohms ochepa, item sangathe unsolder ku bolodi. Pamene gawo mu megohms resistor ayenera desoldering nuyese popanda kugwira zikhomo ndi dzanja.