Revolutionizing Elevators: The MULTI System

Revolutionizing Elevators: The MULTI System

Click the “Practice English Listening“ above to follow me (↑Click above to listen to today’s audio; the audio player now supports pause, fast forward, and rewind functions.) Listening Reference Text ↓↓↓ 1854, the birth of the elevator—this invention changed the way we live. One cabin in one shaft on one rope traveling up and down, … Read more

How to Use a Multimeter

How to Use a Multimeter

A multimeter is a multifunctional and multi-range measuring instrument, generally including functions such as ammeter, voltmeter, and ohmmeter. Below are the basic steps and precautions for using a multimeter: Preparation Before Use 1. Check the instrument: Ensure that the multimeter is in good condition and that the dial is clearly visible. 2. Familiarize with functions: … Read more

How to Repair Circuit Boards Without Schematics?

How to Repair Circuit Boards Without Schematics?

Click ↑ for automotive repair cases and follow for updates to obtain the complete timing guide Highly versatile, applicable to all circuit boards! 1. How to repair circuit boards without schematics? 1. You must have a clear mental image. You need to thoroughly understand the principles of some typical circuits and be very familiar with … Read more

Improper Use of Multimeter Leads to Tripping of Two Units

Improper Use of Multimeter Leads to Tripping of Two Units

Thermal Circle is a community for power generation professionals! On 20xx xx 22xx, an incident occurred at x Power Plant where operational personnel incorrectly used a multimeter while engaging the protection panel, resulting in the tripping of units 1 and 2 due to human error. The brief situation is reported as follows. All units are … Read more

Method for Checking Internal Breakpoints in Wires Using a Multimeter

Method for Checking Internal Breakpoints in Wires Using a Multimeter

In addition to measuring basic parameters such as voltage, current, resistance, capacitance, and inductance, digital multimeters can be adapted for various uses, expanding their functionality to achieve a multi-purpose tool. Here is a method for using a digital multimeter to determine internal breakpoints in wires and cables: when there is an internal break in the … Read more

Multimeters and Megohmmeters: The ‘Twin Tools’ of Electricians, Unveiling Their Principles!

Multimeters and Megohmmeters: The 'Twin Tools' of Electricians, Unveiling Their Principles!

In the toolkit of electricians, multimeters and megohmmeters are known as the “twin tools,” but their principles and uses are quite different. Understanding these is essential for precise electrical measurements, achieving more with less effort! 1. Multimeter: The ‘Measuring Philosopher’ A multimeter, also known as a multifunction meter, is a “jack of all trades” for … Read more

How to Use a Multimeter to Measure and Distinguish Between Voltage, Neutral, and Live Wires

How to Use a Multimeter to Measure and Distinguish Between Voltage, Neutral, and Live Wires

Source: Electrician Home Electrical Technicians Technical Club:200037175 Electrical Personnel Procurement Alliance Group:436576602 Application Format:City Name – Company Name (Electrical Engineer Job Title) Before starting the second part of voltage testing, let’s insert a small section A: How to choose the multimeter probe socket under different ranges First, let’s take a look at the sockets available … Read more

Understanding High-Precision Multimeters in One Minute

Understanding High-Precision Multimeters in One Minute

The multimeter is a multifunctional, multi-range instrument that is widely used and favored by electrical technicians. It can easily measure various electrical parameters such as insulation resistance, low resistance, general resistance, voltage, current, capacitance, diodes, frequency, duty cycle, and TYPE K temperature, playing a crucial role in the maintenance, repair, and troubleshooting of electrical systems. … Read more

Are You Using the Multimeter Correctly? Let This Guide Help Every Engineer!

Are You Using the Multimeter Correctly? Let This Guide Help Every Engineer!

Click Mechanical Frontier” Follow for Updates Leading the Mechanical Frontier, Mechanical Videos, Automotive, Processing Technology, 3D Printing, Automation, Robotics, Production Processes, Bearings, Molds, Machine Tools, Sheet Metal, and other industry frontiers await you here A multimeter, also known as a multi-tester, is a multifunctional and multi-range measuring instrument. Generally, a multimeter can measure DC current, … Read more