Before measuring circuits with a multimeter, understand 5 basic circuit concepts. ■ Circuit: Also called a loop, it refers to a closed circuit that runs from one end of the power source through the load and finally returns to the other end of the power source. ■ Open Circuit: Also called a break circuit, when … Read more
The Basic Principle of a Multimeter The basic principle of a multimeter is to use a sensitive magnetic electric direct current ammeter (microammeter) as the meter head. When a small current passes through the meter head, it will indicate the current. However, the meter head cannot handle large currents, so it is necessary to connect … Read more
☞ This is the 15470th article published by Metal Processing (mw1950pub) Editor’s Note A multimeter is a multifunctional and multi-range measuring instrument. Generally, a multimeter can measure direct current, direct voltage, alternating current, alternating voltage, resistance, and audio levels. Some can also measure alternating current, capacitance, inductance, and certain parameters of semiconductors. Multimeters are classified … Read more
A multimeter, also known as a multi-tester, is a versatile measuring instrument that can measure various electrical parameters such as direct current, direct voltage, alternating voltage, resistance, and audio levels. Some models can also measure alternating current, capacitance, inductance, and certain semiconductor parameters.It is a commonly used tool for electricians. 1. Always check the range … Read more
Using a multimeter to distinguish between silicon diodes and germanium diodes The distinction between silicon diodes and germanium diodes can be made using the resistance method, as shown in Figure 6-4. Figure 6-4 Distinguishing between silicon diodes and germanium diodes The conduction voltage of silicon diodes is higher than that of germanium diodes when forward-biased, … Read more
Introduction to Digital MultimetersDigital measuring instruments have become mainstream due to their high sensitivity, accuracy, clear display, strong overload capacity, portability, and ease of use.▲ Figure 1 Below, we will take this type of digital multimeter as an example to briefly introduce its usage methods and precautions. 02Appearance of Digital Multimeter 03Digital Multimeter Usage Diagram … Read more
Click the “blue text” above to follow us We all know that a multimeter is an essential maintenance tool for electrical workers. Proper use of a multimeter can not only make our work more efficient but also enhance our safety and effectiveness. 1. Before using the multimeter, perform a “mechanical zeroing”; 2. Do not touch … Read more
Search on WeChatTechnical TrainingA multimeter, also known as a multi-tester, is a versatile measuring instrument that can measure DC current, DC voltage, AC voltage, resistance, and audio levels. Some models can also measure AC current, capacitance, inductance, and certain parameters of semiconductors. It is a commonly used tool for electricians. 1. Check the range before … Read more
A multimeter, also known as a multimeter, three-in-one meter, or multifunction meter, is a versatile measuring instrument that can measure direct current (DC) and alternating current (AC) voltage, resistance, and audio levels. Some models can also measure AC current, capacitance, inductance, and certain parameters of semiconductors (such as β). AC Voltage Measurement: As shown in … Read more
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 measurements. 3.Pre-use checks for the multimeter. (1) … Read more