Input Protection ntawm Digital Multimeters
Ib qho yuam kev feem ntau yog muab cov kev xeem coj mus rau hauv cov jacks tam sim no thaum sim ntsuas qhov voltage. Me me tus nqi resistors hauv DMMs tuaj yeem luv-circuit qhov voltage. Ib tug loj tam sim no ntws los ntawm lub digital multimeter. Yog hais tias lub multimeter tsis muaj kev tiv thaiv txaus, nws yuav tsis tsuas ua rau lub meter thiab Circuit Court puas, tab sis kuj ua mob rau tus neeg teb xov tooj. Nyob rau hauv cov ntaub ntawv ntawm high-voltage circuits (480 volts los yog siab dua), muaj kev txaus ntshai ntau dua.
Therefore, the digital multimeter should have a large enough current input protection fuse. Meters without current input fuses cannot be used in high energy circuits (>240V AC). Siv lub digital multimeter nrog lub fuse, lub fuse yuav tsum muaj lub peev xwm loj txaus.
tus nqi los tshem tawm cov teeb meem siab zog. Qhov ntsuas hluav taws xob ntawm lub fuse yuav tsum siab tshaj qhov siab tshaj qhov hluav taws xob koj e
