A multimeter, also known as a multimeter, three-in-one meter, or multifunction meter, is a versatile measuring instrument that can measure DC current, DC voltage, AC voltage, resistance, and audio levels. Some can also measure AC current, capacitance, inductance, and certain parameters of semiconductors (such as β). AC voltage measurement: As shown in Figure 1, the … Read more
★ The diagram helps to understand the internal principles of the multimeter, why it can measure high voltage, and under what circumstances measuring high voltage could damage the meter. The diagram can be used to repair multimeters and to create multimeters. 1. DC 2.5V. Set the left switch to 2.5V and the right switch to … Read more
01 DM3068 Digital Multimeter 1. DM3068 Digital Multimeter This is a RIGOL six-and-a-half digit digital multimeter, model DM3068. Yesterday, while using this multimeter in DC mode to test the DC signal in a square wave signal, I encountered a major pitfall. The frequency of this square wave signal is 1kHz, with a low level of … Read more
Siemens Comprehensive + TIA Portal + EPLAN Electrical Drawing Video Recordings for Sale at Low Prices! Chuangkong Education Siemens Comprehensive Class Course Introduction A multimeter, also known as a multi-tester, is a multifunctional and multi-range measuring instrument. Generally, a multimeter can measure DC current, DC voltage, AC voltage, resistance, and audio level, and some can … Read more
A multimeter is a magnetic-electric instrument that can measure various electrical parameters such as AC voltage, DC voltage, and resistance. By changing the knob switch, it can measure multiple electrical parameters, making it an important instrument for tractor electrical repairs. Below, we will introduce the structural features and technical usage points of pointer multimeters using … Read more
Click on the above “ Tech Training ” and select “Pin to Top Official Account” Over 140,000 industrial control professionals follow this WeChat platform: Technical sharing, learning exchange, industrial control videos A multimeter is also known as a multimeter, three-in-one meter, or multifunction meter. It is a multifunctional and multi-range measuring instrument. Generally, a multimeter … Read more
Search on WeChat Jicheng Training 1. The multimeter is divided into analog and digital multimeters. As shown in the figure below, the left image is an analog multimeter, and the right image is a digital multimeter. 2. The function of the multimeter is to measure AC voltage, DC voltage, DC current, resistance, and other multifunctional … Read more
To not miss exciting content, please set “Measurement Information Express” as a starred ☆. 1. Entering Adjustment Mode To prevent unauthorized adjustments, specific steps must be followed to enter the adjustment mode. The method may vary among different models of oscilloscopes. Common methods to enter adjustment mode include: 1. Calibration Switch For the Tektronix TDS200 … Read more
An oscilloscope is a commonly used measuring instrument, primarily used to detect various electrical signals, with applications in fields such as power, electronics, medicine, scientific research, and military. Do we understand the methods and precautions for measuring voltage with an oscilloscope? Below, I will introduce the methods and precautions for measuring voltage with an oscilloscope … Read more
1. Introduction Previously, we tested the input voltage characteristics of the ports in the STC32C030 microcontroller. A signal source DG1062 was used to generate a peak 10V sine AC signal. It can be observed that the voltage at the microcontroller’s IO port is limited to around 9V. So what are the specific characteristics of the … Read more