Welcome to Reserve IIC Shenzhen – 2023 International Integrated Circuit Exhibition and Seminar Live Broadcast Previously, we disassembled two multimeters, both of which were low-quality counterfeit models that were just usable. This time, we will disassemble a legitimate, commonly used, and inexpensive model, the Elec EM33D. We can see that in all aspects, design and … Read more
1. Measuring AC and DC Current Select the appropriate current measurement range based on the size of the current to be measured, and insert the red probe into the “A” current jack. When measuring DC, the red probe (inserted into the current jack) should contact the higher voltage side, and the black probe should contact … Read more
A multimeter is a versatile measuring tool that can measure voltage, resistance, current, capacitance, and short circuits, among other functions. The usage methods of different multimeters are generally similar. By mastering the principles, one can easily understand them. Below, I will demonstrate how to use a digital multimeter. Which is better, an analog multimeter or … Read more
Long press the QR code above to recognize, follow, and click “Skill Improvement” to obtain professional knowledge and free materials. Share this article to your friend circle and send a screenshot to the public account to participate in the lottery. The prize is a book at the end of the article. Before introducing the multimeter … Read more
Electricians and welders are specialized occupations, and those engaged in related work must hold a certification. Special operations certificates need to be re-evaluated every three years. One certificate per person is required, and it is valid nationwide. Exam format: personal reference, single person at a table, divided into theoretical and practical subjects, with full marks … Read more
1 Hello today! The digital multimeter can measure DC and AC voltage, DC and AC current, resistance, capacitance, frequency, batteries, diodes, etc. The overall circuit design is centered around a large-scale integrated circuit dual-slope A/D converter, equipped with a complete overload protection circuit, making it a superior performance tool and one of the essential tools … Read more
Multimeter Usage Mnemonics 1. Check the range before measuring; do not measure without checking. Every time you pick up the probes to prepare for measurement, make sure to double-check whether the measurement category and range selection switch are set correctly. For safety, this habit must be developed. 2. Do not change the range while measuring; … Read more
Follow our WeChat Subscription Number: Mechanical Industry Press E-World Long press the QR code above to recognize it and follow us! Introduction A multimeter can measure direct current, direct or alternating voltage, and resistance. Some models can also directly measure capacitance, inductance, and transistor parameters. When repairing electrical and electronic equipment, a multimeter can quickly … Read more
A multimeter, also known as a multi-tester or volt/ohm meter, is a multifunctional, multi-range measuring instrument. It is the most basic tool in the field of electronic testing and is widely used; it is a measuring tool that personnel in the electronics industry must master. Multimeters are divided into pointer and digital types. A typical … Read more
1. Measuring Capacitor Health with an Analog Multimeter To measure the health of a capacitor, it is best to use an analog multimeter as it provides a more intuitive reading. Here, we will use an analog multimeter to illustrate how to measure a capacitor’s health. First, to measure the capacitance, set the multimeter to the … Read more