Maitiro ekutsvaga dunhu pfupi rine multimeter (6-nhanho gwara)

Wakambosangana nedambudziko remapfupi mapfupi paunenge uchishanda nemagetsi emagetsi kana zvishandiso? Kana dunhu pfupi richikuvadza zvachose dunhu rako remagetsi kana redunhu bhodhi, rinova dambudziko rakawanda. Kuona uye kugadzirisa pfupi dunhu kwakakosha.

Nepo kune nzira dzakasiyana dzekuona dunhu diki, kushandisa multimeter ndeimwe yeakareruka. Nekuda kweizvozvo, takaita iyi tsananguro yakazara yekuti tingawana sei dunhu diki rine multimeter.

Chii chinonzi short circuit?

Dunhu pfupi chiratidzo chetambo yakaputsika kana yakapwanyika, zvichiita kuti kusashanda zvakanaka muhurongwa hwemagetsi. Inoumbwa kana tambo inotakura ikozvino inosangana neyakarerekera kana pasi mudunhu.

Zvakare, chinogona kunge chiri chiratidzo chedunhu pfupi kana iwe ukaona mafuse achivhuvhuta nguva nenguva kana wedunhu rinotsika kazhinji. Kana dunhu raitwa, unogonawo kunzwa kurira kukuru.

Multimeter ndechimwe chezvishandiso zvakakosha zvaunogona kushandisa kutarisa zvikabudura muwaya yemba yako. Nayo, unogona kutarisa matambudziko emagetsi akadai sepfupi kusvika pasi. A multimeter inogona kunyange kuyedza kwenguva pfupi pabhodhi redunhu, senge padesktop komputa. Pamusoro pezvo, inogona zvakare kutarisa mapfupi maseketi muwaya yemagetsi emota yako.

Matanho ekutsvaga dunhu diki rine digital multimeter

Nokugadzirisa pfupi pfupi nokukurumidza sezvinobvira, iwe uchaderedza ngozi yekukuvadza kune waya uye kuvhara uye kudzivirira muparadzi wedunhu kubva pakupisa. (1)

Kuti uwane dunhu pfupi rine multimeter, tevera matanho aya:

Nhanho #1: Gara Wakachengeteka uye Gadzirira

Izvo zvakanyanya kukosha kuve nechokwadi chekuti zvese zvinoitwa zvakachengeteka usati washandisa multimeter kuona iyo pfupi dunhu. Izvi zvinovimbisa kuti hapana dunhu rako remagetsi kana multimeter yako yakakuvadzwa paunenge uchitsvaga pfupi pfupi.

Usati waongorora chero chinhu, ita shuwa kuti dunhu rako remagetsi rakadzima. Izvi zvinosanganisira kubvisa mabhatiri uye maadapter emagetsi.

Cherechedza: Kana ukasadzima simba rese kudunhu usati waiedza, unogona kugamuchira kuvhunduka kwemagetsi kwakanyanya kana kuvhunduka kwemagetsi. Saka, tarisa kaviri kuti magetsi ari mudunhu akadzima.

Nhanho #2 Batidza yako multimeter uye uimise. 

Batidza multimeter mushure mekutarisa kaviri zvese zvakachengeteka kushandisa. Wobva washandisa switch knob kuiisa kune yekuenderera bvunzo modhi kana kuramba maitiro, zvichienderana nekugona kwemultimeter yako.

Zano: Kana yako multimeter iine mamwe marongero ekupikisa, zvinokurudzirwa kusarudza yakaderera chiyero chekupikisa.

Nhanho #3: Tarisa uye Gadzirisa iyo Multimeter

Kuti uve nechokwadi chekuti multimeter yako ichakupa zviyero zvese zvaunoda, unofanirwa kuiyedza nekuigadzirisa usati washandisa. Kuti uite izvi, batanidza mazano ekuferefeta e multimeter yako.

Kana iri mukupokana modhi, kuverenga kwekupokana pane yako multimeter kunofanirwa kunge kuri 0 kana pedyo ne zero. Kana iyo multimeter kuverenga yakakwira zvakanyanya kupfuura zero, gadzirisa iyo kuitira kuti kana maviri maprobes abata, kukosha kuchava zero. Kune rumwe rutivi, kana iri mukuenderera mberi, chiedza chinopenya kana kuti buzzer inonzwika uye kuverenga kuchave 0 kana pedyo ne zero.

Nhanho #4: Tsvaga Schematic Component

Mushure mekumisa uye kuenzanisa iyo multimeter, iwe unofanirwa kutsvaga uye kuona zvikamu zvedunhu zvauchange uchiyedza mapfupi maseketi.

Kurwisana kwemagetsi kwechikamu ichi, zvichida, hakufaniri kuenzana ne zero. Semuenzaniso, iyo yekuisa yeaudio amplifier muimba yako yekutandarira padhuze neTV yako ichave ine impedance yemazana akati wandei ohms (zvishoma).

Bonus: Ita shuwa kuti chikamu chega chega chine kanenge kushorwa pakusarudza izvi zvikamu, zvikasadaro zvichave zvakaoma kuona pfupi pfupi.

Nhanho #5: Ongorora Dunhu

Mushure mekutsvaga chikamu ichi chauchayedza dunhu pfupi, batanidza dzvuku uye dema probes yemultimeter yako kudunhu.

Iyo yesimbi muromo weiyo dema probe inofanirwa kubatanidzwa pasi kana yemagetsi yedunhu chassis.

Wobatanidza simbi yepeyi tsvuku kuchikamu chauri kuyedza kana kunzvimbo yaunofunga kuti ipfupi. Ita shuwa kuti ese ari maviri maprobe akabatana nesimbi chikamu sewaya, chikamu chinotungamira, kana PCB foil.

Nhanho #6: Ongorora iyo multimeter kuratidza

Chekupedzisira, teerera kuverenga pachiratidziro chemultimeter paunenge uchidzvanya dzvuku uye dema probes kurwisa zvikamu zvesimbi zvedunhu.

• Resistance Mode - Kana kupokana kwakadzikira uye kuverenga kuri zero kana kudhuze ne zero, bvunzo ikozvino inoyerera kuburikidza nayo uye dunhu rinoenderera. Zvisinei, kana pane pfupi pfupi, iyo multimeter inoratidzira icharatidza 1 kana OL (yakazaruka dunhu), zvichiratidza kushayikwa kwekuenderera mberi uye pfupi pfupi mumudziyo kana dunhu riri kuyerwa.
• Kuenderera mberi Mode - Iyo multimeter inoratidza zero kana pedyo ne zero uye beep kuratidza kuenderera. Nekudaro, hapana kuenderera mberi kana iyo multimeter ichiverenga 1 kana OL (yakavhurika loop) uye haina beep. Kushaikwa kwekuenderera kunoratidza pfupi dunhu mumudziyo uri pasi pekuedzwa.

Mazano Ekushandisa DMM Kuti Uwane Pfupi Circuit

Multimeter inogona kushandiswa kutarisa mapfupi maseketi uye maitiro edunhu rako sezvo ichigona kushanda se voltmeter, ohmmeter uye ammeter.

Sarudza mudziyo wakakodzera                             

Kuti utarise mapfupi mapfupi mumagetsi emagetsi, ita shuwa kuti uri kushandisa yakakodzera mhando yemultimeter. Nepo ese mamultimeter achigona kuyera zvazvino, voltage, uye kuramba, epamusoro-magumo multimeter anogona kuita mamwe mabasa akasiyana. Kuti uwane yakawanda yakawanda multimeter, inogona kuve nekuwedzera kuverenga, zvakabatanidzwa, uye modhi.

Tarisa maitiro uye ruzivo                        

Chiratidziro chikuru, knob yekusarudza, zviteshi uye probes ndizvo zvinhu zvikuru zvemultimeter yako. Nekudaro, yekutanga analog multimeters yaisanganisira dial uye tsono panzvimbo yedhijitari kuratidzwa. Panogona kunge paine zviteshi zvina, hafu yacho yakatsvuka uye imwe hafu itema. Iyo dema port ndeyeCOM port uye mamwe matatu ndeekuverenga nekuyera.

Ziva zviteshi zvemudziyo wako

Nepo dema doko richishandiswa COM kubatana, mamwe matsvuku madoko anoita mabasa akasiyana. Zviteshi zvinotevera zvinosanganisirwa:

• VΩ chikamu chechiyero chekupikisa, voltage, uye kuenderera mberi kuyedza.
• µAmA iyuniti yechiyero chezvino mudunhu.
• 10A - inoshandiswa kuyera mafungu kubva pa200 mA uye pamusoro.

Pazasi pane mamwe matutorials uye zvigadzirwa madhairekitori aunogona kutarisa;

• Maitiro ekuyedza dunhu rinotyora ine multimeter
• Maitiro ekuona iyo isina kwayakarerekera waya ine multimeter
• yakanakisa multimeter

kurumbidza

(1) insulation - https://www.energy.gov/energysaver/types-insulation

(2) kugadzira moto - https://www.rei.com/learn/expert-advice/campfire-basics.html