Click the blue text to follow us Essential tools in an electrician’s toolbox Include multimeters, ohmmeters, voltage meters, and ammeters Resistance measuring instruments, etc. These tools are indispensable in actual electrical work. Come check out the detailed operation of each tool! “ 1. How to Use a Multimeter A multimeter can measure DC current, DC … Read more
Abnormal conditions in the petroleum and chemical production instruments (indications that are too high, too low, not changing, unstable, etc.) involve two factors: First is the process factor; Second is the instrument factor, where a fault in a certain link of the instrument (detection environment) causes the process parameter indication to be inconsistent with the … Read more
Electricity Electricity has become an indispensable energy source in our lives. As temperatures rise this season, the occurrence of rainy and humid weather has also increased, leading to more reports of electrical leakage issues at home. For those with no basic knowledge of electrical work, discovering leakage in the home can be a big headache!!! … 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
Testing of the Contactors Using Multimeter Resistance Mode, The Testing Process is as Follows: ① In normal conditions, measure the resistance of the normally open and normally closed contacts. The image below shows the resistance measurement of the normally open contact of the AC contactor in normal conditions. Since the normally open contact is open … Read more
Siemens Comprehensive + Portal + EPLAN Electrical Drawing Video Recordings Available for Sale at Low Package Prices! Chuangkong Education Siemens Comprehensive Course Introduction 1. Measuring Capacitor Quality with a Pointer Multimeter To measure the quality of a capacitor, it is best to use a pointer multimeter, which is more intuitive. Below, we will use the … Read more
How to Use a MultimeterA multimeter can measure direct current, direct voltage, alternating voltage, and resistance; some can also measure power, inductance, and capacitance, making it one of the most commonly used instruments by electricians.1. Basic Structure and Appearance of the MultimeterThe multimeter mainly consists of three parts: the indication part, the measurement circuit, and … 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
How to Measure Ground Resistance with a Multimeter Experiments were conducted using a multimeter to measure ground resistance in different soil types, and the data obtained from the multimeter was compared with that from a specialized ground resistance tester, showing very close results. The specific measurement method is as follows: Find two pieces of 8mm, … Read more
Common Multimeters Correct Usage Be cautious with electrical safety. Common multimeters include analog and digital types: the analog multimeter is a multifunctional measuring instrument based on a mechanical dial, with values indicated by a needle on the dial; the digital multimeter displays values directly in numerical form on a liquid crystal screen and often includes … Read more