멀티미터를 사용하여 단락을 찾는 방법은 무엇입니까?
Short-circuit measurement is very common in electrical maintenance and component fault location. When measuring short-circuit faults, be sure to disconnect the power supply, and remember not to operate with power on. For short-circuit measurement, use the buzzer or ohm profile of the multimeter to measure. The buzzer is used to measure more intuitively. When the line is short-circuited, the multimeter will "buzz" directly. The principle of buzzer is when the measured resistance is less than about 75Ω, the multimeter A beep occurs. If you want to know the resistance value between the two lines more accurately, you can use the 200Ω measurement. Using the buzzer mode to measure, sometimes the actual internal resistance between the two signals is small, it is easy to misjudge, such as relay/contactor coil, many relays/contactor coil impedance is less than 75Ω, using the buzzer mode measurement will The buzzer sounds like a short circuit, but it doesn't.
엔지니어는 저항과 커패시터가 단락되었는지 여부, 다이오드가 역방향으로 파손되었는지 여부를 측정하는 것과 같이{0}라인이나 구성요소의 단락 오류 지점을 빠르게 찾기 위해 멀티미터의 부저를 사용합니다. 아래로, 3극관이 고장났는지 여부(3극관이 고장났을 때 베이스와 이미 터는 일반적으로{2}}단락됨), 전원 공급 장치와 집적 회로 칩의 접지 사이에 단락이 있는지 여부, 두 핀 사이에 단락이 있는지 여부 등
