Mokhoa oa ho Lekola Relay ka Multimeter (Mohato ka Mohato Tataiso)

Li-relay ke e 'ngoe ea likarolo tsa motlakase tsa bohlokoa ka ho fetisisa likoloing, litsamaiso tsa li-automation tsa lapeng le lits'ebetso tse ling moo ho hlokahalang ho chencha ka potlako li-circuits tse matla. Leha ho le joalo, joalo ka lisebelisoa tsa electromechanical, li-relay li ka senyeha 'me li ka hloleha ka nako efe kapa efe. Kahoo, ho bohlokoa haholo ho lekola li-relay tsa hau khafetsa ho netefatsa hore li sebetsa hantle ka ho fetisisa.

E 'ngoe ea mekhoa e fapaneng ea tlhahlobo ea relay ke multimeter ea dijithale. E re ke u tsamaise mehatong ea ho qala ho leka relay ka multimeter.

Mabapi le relay

Relay ke sesebelisoa sa ho laola motlakase se nang le mokhoa oa ho laola (potoloho ea ho kenya) le tsamaiso e laoloang (potoloho ea potoloho), eo hangata e fumanoang lipotolohong tsa taolo. E sebetsa e le molaoli oa potoloho, potoloho ea polokeho le converter. Relay e na le karabelo e potlakileng, ts'ebetso e tsitsitseng, bophelo bo bolelele ba ts'ebeletso le boholo bo nyane. (1)

Li-relay li atisa ho sebelisoa ho laola potoloho e phahameng ea hona joale ho tloha ho potoloho e tlaase ea hona joale. Li ka koloing e 'ngoe le e 'ngoe. Li-relay li sebetsa joalo ka li-switches, tse lumellang potoloho e tlase ea amperage ho bulela kapa ho tima potoloho e phahameng ea amperage. Ho feta moo, relay e ka boela ea laola litsamaiso tse ngata ka nako e le 'ngoe, tse kang ho khantša mabone a pele ha li-wiper li butse, kapa ho atolosa lenakana ha seea-le-moea se buletsoe.

Seo U se Hlokang Ha U Lekola Relay

Ho etsa teko ea relay ea koloi ea hau ke mokhoa o bonolo o sa hlokeng tšebeliso ea khiti e felletseng. Ho qala ho leka relay, o tla hloka lintho tse latelang:

Lisebelisoa: 

• Leseli le phahameng la tlhahlobo ea impedance
• Ohmmeter, eo hangata e bitsoang multimeter ea digital (DMM).
• Bukana ea Tšebeletso ea Likoloi (ea boikhethelo empa e khothalelitsoe haholo)

Likarolo tsa tlatsetso:            

• Phetoho e nepahetseng ea Relay
• jumper terata

Relay Test Mehato

Mohato oa 1: Fumana Relay 

Ho itšetlehile ka seo e se laolang, u ka fumana relay tlas'a dash kapa sebakeng sa enjene. Sheba khaolo ea motlakase ea bukana ea litšebeletso tsa hau le setšoantšo sa lithapo haeba u sa tiisehe ka ho beoa.

Mohato oa 2: Hlahloba le ho hloekisa lihokelo

Hang ha u fumana relay, e tlose. Ebe u hloekisa 'me u hlahlobe lihokelo ha relay ena e koetsoe. Ho nkela sebaka se seholo sa relay ka sebaka se loketseng ke tsela e potlakileng le e bonolo ea ho e leka.

Mohato oa 3: Fumana multimeter

Beha multimeter ea hau ho mokhoa oa ho lekanya khanyetso. Ebe u lekanya khanyetso ka ho ama likhoele. Coil e tloaelehileng e na le khanyetso ea 40 ohms ho 120 ohms. Matsoelintsoeke a mabe a solenoid a bontša hore relay ha e tloaelehe kapa e bulehile 'me ke nako ea ho e khutlisa. Ebe u boloka multimeter ka mokhoa oa ho hanyetsa kapa oa ho tsoela pele. Ka mor'a moo, amahanya le switjha mabitso ho isa pele. E lokela ho bonts'a e bulehileng kapa OL haeba e le relay e tloaelehileng e bulehileng.

Mohato oa 4: Bulela khoele ea electromagnet 

Ka betri ea 9-12V ho likhokahano, sebelisa matla ho coil ena ea makenete. Ha khoele e matlafatsa 'me e koala switch, relay e lokela ho penya ka mokhoa o utloahalang. Ho 4-pin relay, polarity ha e bohlokoa, empa ho li-relay tsa diode ho bohlokoa.

Mohato oa 5: Hokela lebone la teko 

Hokela betri e le positive ho e 'ngoe ea litheminale tsa switjha ha khoele e ntse e sebetsa. Ebe o kopanya lebone la teko pakeng tsa fatše le switch terminal. Lebone la taolo le lokela ho ja motlakase le ho khantša. Ebe u tlosa jumper e ntle ho betri. Lebone la taolo le lokela ho tima ka mor'a metsotsoana e seng mekae.

Mohato oa 6: Ho hlahloba Voltage Relay

Ha u le fapoha, hlahloba motlakase oa relay. Lintlha tse mpe tsa ho ikopanya li ka lebisa tahlehelong ea motlakase. Tlosa lebone la teko 'me u fetole multimeter ho DC voltage. Ebe o kopanya lithapo ho lihokelo tsa lebone la liteko kapa u fetole mabitso. Ho bala ho lokela ho lumellana le matla a betri.

Mohato oa 7: Sheba sesebelisoa

Sheba khanyetso e nepahetseng ho switjha. Jumper e ntle e tlameha ho khaoloa mme khoele ea solenoid e tlameha ho matlafatsoa. Ebe u lekanya khanyetso ho pholletsa le li-switches ka li-multimeter tse behiloeng ho ohms. Ka tloaelo, relay e bulehileng e lokela ho lekanya haufi le zero resistance ha e buloa, athe relay e tloaelehileng e koetsoeng e lokela ho metha e butsoe kapa OL ha e buletsoe.

Relay Testing Pro Tips

Ha o sebetsa ka li-relay, ho kgothaletswa ho hopola tse latelang:

Qoba ho kopanya le ho bapisa 

Ha o na le relay e mpe e hlokang ho nkeloa sebaka, ha se mohopolo o motle ho kopanya le ho bapisa li-relay ho tsoa ho likarolo tse ling tsa koloi kapa moqomo oa lithōle o sa reroang ka karacheng ea hau. Sena se ka baka potoloho e khuts'oane kapa ts'ebetso ea motlakase e tla senya sistimi ea motlakase ea koloi ea hau. (2)

Tšoara ka hloko

Ho bohlokoa haholo ho ba hlokolosi hore o se ke oa theola li-relay. Haeba likarolo tsa ka hare tsa relay li senyeha, mohala o ka chesa kapa oa qhibiliha. Hape qoba ho kena-kenana le ts'ebetso ea relay.

Qoba hole le likhase tse tukang 

Se ke oa sebelisa li-relay kapa eng kapa eng e hlokang motlakase libakeng tseo ho nang le likhase tse phatlohang kapa tse tukang tse kang peterole kapa libeso tse ling.

Bala libuka tsa ho lokisa

Sheba bukana ea litšebeletso tsa koloi ea hau (eseng buka ea mong'a hau) ho tseba le ho utloisisa tsamaiso ea lithapo le li-relay, le haeba u se u le setsebi sa ho lokisa karache.

Hlophisa lisebelisoa tsa hau 

Lokisetsa lisebelisoa tsohle tse hlokahalang esale pele 'me u behe ntho e' ngoe le e 'ngoe sebakeng sa eona. Sena se tla u bolokela nako ea bohlokoa mme se u lumelle ho tsepamisa maikutlo mosebetsing oa hajoale ntle le ho batla lisebelisoa nakong ea ts'ebetso.

Lipotso tse atisang ho botsoa 

Ke bokae ho khutlisa relay?

Relay e ka bitsa kae kapa kae ho tloha ho $5 ho isa ho lidolara tse makholo a 'maloa, ho latela hore na e laola eng. Ka mor'a moo ke li-ohmmeters, tse bitsang chelete e ka tlaase ho $20 'me li tla ka libopeho le boholo bo sa tšoaneng. Taba ea bobeli, mabone a phahameng a tlhahlobo ea impedance a theko e phahameng hanyane, e ka ba $20 ho isa ho $40. Qetellong, li-jumpers li theko e tlaase, ho tloha ho $ 2 ho ea ho $ 50 ho itšetlehile ka bolelele ba terata.

Ho etsahala'ng haeba ke hlokomoloha bothata bo ka 'nang ba hlaha?

Ho hlokomoloha relay e hlōlehileng kapa ho kenya relay leha e le efe ea khale e lekanang ho ka baka mathata a tebileng. Haeba relay e hloleha kapa e kentsoe ka phoso, e ka chesa lithapo mme mohlomong ea qala mollo.

Ha ke na ohmmeter kapa lebone la tlhahlobo. A na nka ntse ke sheba relay?

Che. U na le likhetho tse peli feela haeba u na le bonnete ba hore relay ea hau ke bothata, 'me ka bobeli li hloka ts'ebeliso ea ohmmeter, leseli la tlhahlobo, joalo-joalo. Ntlha ea pele, e-ba hlokolosi 'me u nkele sebaka se ka sehloohong sebaka ka lisebelisoa tse hlokahalang. Taba ea bobeli, ha u se na lisebelisoa tsa ho e leka, u ka hira mak'henike ho u hlahloba le ho u lokisa relay.

U ka boela ua sheba litataiso tse ling tsa tlhahlobo ea li-multimeter ka tlase;

• Mokhoa oa ho lekola capacitor ka multimeter
• Mokhoa oa ho sebelisa multimeter ho lekola voltage ea lithapo tse phelang
• Mokhoa oa ho lekola mobu ka multimeter

likhothaletso

(1) tsamaiso ea taolo - https://www.britannica.com/technology/control-system

(2) litšila - https://www.learner.org/series/essential-lens-analyzing-photographs-across-the-curriculum/garbage-the-science-and-problem-of-what-we-throw-away /