Txoj kev los xyuas qhov tsis kam:

Ua ntej, qhov kev tshuaj ntsuam xyuas

Xyuas kom meej tias cov paib pom tseeb, cov xim tiv thaiv tsis zoo, tsis muaj scorching, nti, tawg thiab corrosion, thiab cov resistor nyob ze rau tus pin. Rau potentiometers, koj yuav tsum tau kuaj xyuas tias lub rotating ncej yog hloov tau, elastic thiab xis nyob. Yog tias muaj qhov hloov pauv, xyuas seb qhov kev hloov pauv zoo li cas, thiab lwm yam.

Thib ob, kev kuaj xyuas multimeter

1. Thaum txiav txim seb qhov kev tiv thaiv yog qhov zoo lossis qhov tsis zoo nrog lub pointer multimeter, koj yuav tsum xub xaiv lub ntsuas ntsuas, thiab tom qab ntawd muab lub pob qhov rooj loj loj rau hauv cov iav tsim nyog. Feem ntau, RX1 iav tuaj yeem xaiv rau cov resistors hauv qab 100 ohms, RX10 iav rau resistors ntawm 100 ohms thiab 1kohms, RX100 iav rau resistors ntawm 1kohms thiab 10kohms, RX1K iav rau resistors saum 100kohms.

2. Tom qab xaiv lub ntsuas ntsuas, ntsuas qhov ntsuas qhov ntsuas ntawm lub ntsuas ntsuas rau 0. Cov txheej txheem ntawm calibrating 0 yog: luv-circuit cov hlau tuav ntawm ob qhov kev sojntsuam ntawm multimeter, thiab saib seb tus pointer mus txog qhov chaw ntawm 0. Yog tias nws tsis nyob ntawm txoj hauj lwm ntawm 0, kho tus pointer ntawm xoom hloov pob qhov taw qhia mus rau txoj hauj lwm ntawm 0 ntawm qhov ntsuas tsis kam.

3. Tom qab ntawd, txuas ob qhov kev sojntsuam ntawm multimeter mus rau ob qhov kawg ntawm cov resistor feem, thiab cov kev sojntsuam yuav tsum taw tes rau qhov ntsuas qhov sib thooj. Yog hais tias qhov kev sojntsuam tsis txav thiab tsis ruaj khov, lossis tus nqi qhia tau txawv heev ntawm tus nqi qhia ntawm tus resistor, nws txhais tau hais tias tus resistor tau puas lawm.

4. Thaum txiav txim seb qhov kev tiv thaiv yog qhov zoo lossis qhov tsis zoo nrog lub tshuab digital multimeter, ua ntej kho lub iav pob qhov rooj ntawm lub multimeter mus rau qhov tsim nyog iav ntawm ohm iav. Feem ntau, 200 lub zog tuaj yeem xaiv rau cov resistors qis dua 200 ohms, 200-2K ohms tuaj yeem xaiv rau 2k iav, 20-20K ohms tuaj yeem xaiv rau 20k iav, 200K-200M ohms tuaj yeem xaiv rau 2M ohms. Qhov tsis kam ntawm 2M-20M ohm yog 20M, thiab qhov tsis kam ntawm 20M ohm lossis ntau dua yog 200M.

Cov ntsiab lus qhia saum toj no yog txoj hauv kev los xyuas qhov zoo ntawm kev tiv thaiv. Los ntawm cov kev tshawb pom yooj yim no, koj tuaj yeem tshawb xyuas qhov zoo ntawm kev tiv thaiv, uas ua rau koj yooj yim rau kev siv.

Dab tsi yog qhov tshwm sim thaum qhov kev tawm tsam tawg?

Thaum qhov kev tawm tsam tawg, feem ntau yog qhov kev tawm tsam loj dua, thiab qee qhov ntawm lawv yuav ua me me, lossis feem ntau ntawm lawv qhib.

Cov tsos mob dab tsi yog lub tshuab ua haujlwm tawg?

Lub tshuab blower feem ntau tswj qhov ceev ntawm lub tshuab blower. Yog hais tias lub blower tsis kam tawg, qhov ceev ntawm lub blower yog tib yam nyob rau hauv sib txawv zog. Tom qab lub tshuab ua haujlwm tawg lawm, lub tshuab ntim cua tswj lub qhov rooj poob nws cov kev tswj ceev ceev. Nws yuav ua rau tsis muaj peev xwm kho cov cua tso tawm; Tsis muaj 1234 iav, tsuas yog ib lub qhov hluav taws xob cua; Nws yuav tsum yog ib tug loj huab cua tso zis; Kuj tseem muaj qee tus kiv cua uas tsis ua haujlwm ncaj qha.

Thaum lub varistor zoo li qub, nws qhov kev tiv thaiv yog infinite. Nws yog kev cob cog rua nyob rau hauv parallel ntawm ob kawg ntawm lub hwj chim mov, uas plays lub luag hauj lwm ntawm overvoltage tiv thaiv. Thaum lub input voltage ntau tshaj ib tug nqi, nws kuj dheev ua me me, ua rau lub Circuit Court luv luv, yuam kom luv lub fuse, thiab ua si lub luag hauj lwm ntawm kev tiv thaiv cov khoom siv hluav taws xob. Nyob rau hauv ib txwm muaj xwm txheej, lub inverter ceev silicon yog ib qho yooj yim tawg. Yog hais tias lub rectifier silicon puas lawm, muaj feem yuav yog tam sim ntawd overvoltage los yog overcurrent. Vim tias qhov teeb meem tshwm sim los ntawm kev cuam tshuam ntawm kev thauj khoom thiab lub zog hloov pauv, lub rectifier silicon kuj yuav raug puas tsuaj, thiab cov teeb meem tshwj xeeb yuav tsum tau soj ntsuam raws li qhov xwm txheej puas tsuaj.

Yog vim li cas vim li cas cov kiv cua tsis kam ntawm lub tsheb cua txias yuav hlawv tsis tu ncua;

1, compressor lossis tswj Circuit Court tshwm sim los ntawm luv luv Circuit Court.

2, condenser lub cev muaj zog, compressor electromagnetic clutch, evaporator lub cev muaj zog tsis ua haujlwm.

3. Lub fuse ntawm lub tsheb cua txias kiv cua tsis ua raws li qhov yuav tsum tau ua, thiab tus nqi tam sim no me me.

4. Muaj qhov luv luv hauv lub tshuab cua txias, uas yog tshwm sim los ntawm compressor load ntau dhau.