Yuav ua li cas txiav txim ib lub xeev relay nrog ib tug multimeter
Peb kuaj xyuas qhov zoo thiab qhov tsis zoo ntawm cov khoom hauv lub xeev relays thaum lub dav siv ntawm multimeter tsis tuaj yeem ntes tau, txoj kev tshawb pom tseeb yuav tsum yog li no.
Ua ntej tshaj plaws, peb yuav tsum tau saib xyuas tom qab qhov kev tshawb pom tiav, nws tuaj yeem txuas nrog nws lub input tswj davhlau ya nyob twg 3V rau 32V adjustable DC voltage qhov chaw, ces peb yuav tsum tau soj ntsuam qhov qhia ntawm lub teeb-emitting diode tuaj yeem teeb pom kev zoo, ces xyuam xim rau sab tso zis tsis tas yuav tsum tau txuas nrog lub load, tsis txhob txuas rau lub hwj chim mov.
Cov kauj ruam thib ob los ua haujlwm hauv txoj kev no: lub sijhawm no peb tuaj yeem siv lub pointer multimeter RX1K cov ntaub ntawv txhawm rau txheeb xyuas qhov tso tawm tsis kam, yog tias cov tswv yim tswj voltage UI<2.7V, the multimeter indicates that the resistance value should be infinite, in other words, the output of the solid state relay should not conduct; we continue to increase the voltage, when the voltage increases to 3V, when the multimeter's resistance value is generally below 10 ohms, indicating that the output of the solid state relay is already conducting.
Thaum kawg, qhov thib peb kauj ruam: tom qab thawj ob kauj ruam ntawm qhov kev sim tau zoo li qub, peb tuaj yeem txuas cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, thaum cov khoom siv hluav taws xob yog 0V, lub load tsis ua haujlwm; Thaum lub input voltage ntxiv rau 5V los yog li ntawd, lub load tuaj yeem ua haujlwm. Qhov no yog qhia tias cov khoom hauv lub xeev relay tsis zoo, txwv tsis pub cov khoom hauv lub xeev relay yog faulty thiab yuav tsum tau kho.
