Content: 1 Introduction to Digital Multimeters Digital measuring instruments have become mainstream due to their high sensitivity, accuracy, clear display, strong overload capability, portability, and ease of use. Figure 1 below uses this type of digital multimeter as an example to briefly introduce its usage and precautions. 2 Appearance of Digital Multimeter 3 Illustration of … Read more
Measuring DC Voltage with a Multimeter (Task: Measure 9V Battery, 1.5V Battery) (1) When measuring DC voltage, identify the positive and negative terminals (the red probe connects to the positive terminal “+”, and the black probe connects to the negative terminal “-”). Connect the multimeter in parallel to the circuit being tested. Before measuring the … Read more
Click on “Technical Training” above, and select “Top Official Account“ 160,000+ industrial control professionals follow our WeChat platform: technical sharing, learning exchanges, industrial control videos A multimeter is an essential troubleshooting tool for electrical maintenance personnel. The phrase “one person, one pen, one meter” vividly illustrates the basic requirements for electrical workers: electrician + test … Read more
Search on WeChat Technical Training The clamp multimeter is composed of a current transformer and a meter. The core of the current transformer can open when the clamp is tightened; the wire carrying the current to be measured can pass through the gap of the opened core without being cut, and when the clamp is … Read more
Click “Read the Original Text” or scan the QR code to grab the order Correctly using a multimeter can not only quickly and accurately identify the fault location but also prevent damage to electrical equipment and the multimeter itself. 1. Before measuring, check the range; don’t measure without checking. Every time you pick up the … Read more
For more exciting content, please click the original link at the end. A multimeter is an instrument used to measure alternating or direct voltage, resistance, and the continuity of electrical components, as well as to detect small currents in a circuit. You can use this instrument to check if there is voltage in the circuit. … Read more
1. Precautions for Using a Multimeter (1) Before using the multimeter, perform “mechanical zeroing”, which means setting the multimeter pointer to the zero voltage or zero current position when there is no measured electrical quantity. (2) During the use of the multimeter, do not touch the metal parts of the probes with your hands. This … Read more
A multimeter comes in two types: one is a digital multimeter, and the other is an analog multimeter with a needle display. Regardless of the type, it generally has functions for measuring AC/DC voltage, AC/DC current, resistance, and more. Before measuring, it is essential to correctly select the measurement range of the multimeter; this is … 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
1. Basic Working Principles of Multimeters “Multimeter” is short for multimeter, which is an essential tool in our electronic production. Multimeters can measure current, voltage, resistance, and some can also measure transistor amplification, frequency, capacitance, logic levels, and decibel values. There are many types of multimeters, with the most popular being analog and digital multimeters. … Read more