Introduction to the use of common instruments

2024-06-13

Multimeter is also called multimeter. It is a commonly used test instrument in power supply maintenance. Generally, multimeter can test voltage, current, resistance, wire on and off, diode voltage drop, triode discharge multiple, signal frequency, etc. It can not only test the voltage and current of alternating current, but also test the voltage and current of direct current. Multimeter usually uses "-" or "DC" to indicate DC file, use "~" or "AC" to indicate that it is an AC file. Pay attention to distinguish it before testing. Multimeter according to its display method is divided into different pointer and digital two types. Different types of multimeters have their own measuring ranges. Be careful not to exceed their measuring ranges when measuring, otherwise the multimeter may be damaged. Some multimeters have self-protection function. If they exceed their measuring ranges, they will give some kind of sound alarm. There are many types of multimeters, and their functions and usage methods are similar. The following is a model of multimeter to introduce the use of multimeters.

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