Cov lus qhia rau kev yuav ib lub multimeter
1. Cov lej tso saib thiab qhov tseeb ntawm multimeter: Cov lej tso saib thiab qhov tseeb yog qhov qhia tau yooj yim thiab tseem ceeb tshaj plaws ntawm multimeter. Feem ntau hais lus, ntau dua tus lej tso tawm los ntawm multimeter, qhov siab dua qhov tseeb, thiab rov ua dua.
2. Txoj kev ntsuas thiab AC zaus teb ntawm multimeter: Txoj kev ntsuas ntawm multimeter yog feem ntau rau kev ntsuas ntawm AC teeb liab. Nrog rau kev hloov pauv ntawm qhov zaus ntawm AC teeb liab, ntau cov lus teb zaus tshwm sim, uas cuam tshuam rau kev ntsuas ntawm multimeter. Feem ntau muaj ob txoj hauv kev rau kev ntsuas AC cov cim nrog ib qho multimeter: tus nqi nruab nrab thiab qhov tseeb RMS ntsuas.
3. Muaj nuj nqi thiab kev ntsuas ntau: sib txawv multimeters, lawv cov tuam ntxhab yuav tsim cov kev ntsuas sib txawv. Ordinary multimeters tuaj yeem kuaj AC thiab DC voltage, tam sim no, tsis kam, rau -tawm, thiab lwm yam, tab sis qee qhov multimeters tsis teeb tsa cov haujlwm tam sim no txhawm rau txo cov nqi.
4. Measurement stability and protection: A good multimeter has good self-protection. For example, when some multimeters are inserted into the wrong test leads, they will automatically generate a buzzer alarm... When purchasing a multimeter, don't blindly covet cheapness, but be practical and easy to use. .
