1. Correct Use of the Multimeter Correct use of the multimeter requires familiarity with the dial. Adjust the two zero position adjusters gently. Choose the right terminal, and plug the red and black probes into the correct holes. Rotate the switch to the correct range. Choose the appropriate range for accurate measurements. Look closely at … Read more
A multimeter is a common electrical measuring instrument. In addition to its common uses, there are some lesser-known applications. Here is a complete summary of these uses: 01 Determine if a Circuit or Device is Live The multimeter can be used to determine if a circuit or device is live. By selecting the appropriate measurement … Read more
【Four Techniques to Efficiently Use a Digital Multimeter】 1. Determine if a Circuit or Device is Live The AC voltage range of a digital multimeter is very sensitive; it can display even small induced voltages. Based on this feature, it can be used as a test pencil. The method is as follows: set the multimeter … Read more
Common Electrical Measurement Tools and Their Usage This article introduces the usage methods and precautions for several commonly used electrical measurement instruments, including multimeters, ohmmeters, voltmeters, ammeters, and resistance measuring devices. 1. Briefly describe the method for testing non-marked diodes with a multimeter.Answer: Select the appropriate range; calibrate to zero; measure the forward and reverse … Read more
This article mainly introduces the design principles of digital multimeters and the calculation methods for average value and true RMS value, explaining the defects of the average value calculation method and the calculation method for true RMS value of AC signals superimposed with DC signals. It emphasizes the necessity of using multimeters with true RMS … Read more
Digital Multimeter The digital multimeter is relatively simple measurement equipment. In this article, the author will teach you the correct usage of a digital multimeter. Starting with measurement methods for voltage, resistance, current, diodes, transistors, and MOSFETs, you will better master the multimeter measurement techniques. Tip: Please watch the video in a WiFi environment~ 1. … Read more
How to Measure Leakage Current with a Multimeter? How to measure leakage current with a multimeter, methods for measuring leakage current. Using the continuity setting of the multimeter, measure the ground against the part of the circuit being tested. If the meter shows a resistance value, it indicates that there is no insulation. However, in … Read more
The measurement process of a digital multimeter involves converting the measured value into a direct current voltage signal through a conversion circuit, then converting the analog voltage into a digital quantity via an analog-to-digital (A/D) converter. The result is then counted by an electronic counter and displayed directly on the screen as a digital readout. … Read more
A clamp multimeter is composed of a current transformer and a multimeter. The core of the current transformer can open when the clamp is squeezed; the wire carrying the current to be measured can pass through the opening of the core without being cut. When the clamp is released, the core closes. A clamp multimeter … Read more
A digital multimeter is a commonly used electronic instrument in electrical measurements. It has many special functions, but its main functions are to measure voltage, resistance, and current. How to measure voltage, resistance, and current with a digital multimeter? 1. Measuring Voltage: The most basic function of a digital multimeter is measuring voltage. A typical … Read more