Power Dip (Voltage Sag) Management in Industrial Automation Systems
September 12, 2025
Abstract Power dips (voltage sags) are common disturbances in industrial power grids. If not handled properly, they may cause equipment...
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Comprehensive Strategies for Fault Diagnosis in Industrial Instrumentation and Control Systems
September 12, 2025
Abstract Instrumentation and control systems are essential for stable, safe, and efficient industrial operations. However, failures inevitably occur due to...
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Instrument Purging: An Essential Practice Beyond Pipeline Flushing
September 11, 2025
Abstract Pipeline purging is widely recognized as a critical operation to ensure the cleanliness and reliability of gas pipelines. However,...
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What Is the Difference Between GND and COM?
September 11, 2025
In electrical and electronic engineering, GND (Ground) and COM (Common) are both widely used concepts, but they differ significantly in...
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Application of 80G Radar Level Meter in Rotary Filling Systems
September 11, 2025
With the rapid development of industrial automation technology, rotary filling systems have emerged as a key technology to enhance production...
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Operating Requirements for Three-Valve Manifolds in Differential Pressure Gauges
September 11, 2025
1. Introduction Differential pressure gauges (often used with differential pressure transmitters) are designed to measure the pressure difference between two...
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Installation Guidelines for Instrument Junction Boxes
September 11, 2025
The installation of instrument junction boxes must comply with relevant design and construction standards. The following guidelines summarize best practices...
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Analysis of Sudden Flow Drop in Ultrasonic Flowmeters
September 11, 2025
Abstract During ultrasonic flow measurement, users may occasionally observe a sudden drop in the indicated flow rate, followed by recovery...
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Metrological Calibration and Testing of Viscometers
September 11, 2025
1. Introduction In industries such as petroleum, chemical, food, and pharmaceuticals, viscosity is a critical parameter for evaluating product performance...
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Temperature and Pressure Compensation in Vortex Flowmeters
September 11, 2025
Abstract Vortex flowmeters are widely used for measuring gas, steam, and liquid flows in industrial processes. Since vortex flowmeters measure...
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Clarifying RS485: Not a Protocol, but a Physical Layer Standard
September 10, 2025
Abstract RS485 is frequently misunderstood as a "communication protocol," whereas in reality, it is a physical layer interface standard. This...
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Fail-Safe Actions of Pneumatic Valves: FC, FO, and FL
September 10, 2025
1. Introduction Pneumatic control valves rely on compressed air as the driving source. In case of air supply failure, the...
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Practical Guide to Common Instruments and Tools for Electrical and Control Technicians
September 10, 2025
1. Common Electrical Instruments 1.1 Multimeter Purpose: Used to measure DC/AC voltage, current, resistance, and in advanced models, capacitance, inductance,...
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Differences and Commonalities Between Thermal Automation Instruments and Chemical Automation Instruments
September 10, 2025
Abstract Thermal automation instruments and chemical automation instruments both belong to the broader category of industrial automation instruments, serving as...
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Exploring the Series and Parallel Installation of DCS and SIS Valves
September 10, 2025
In process industries, Distributed Control System (DCS) valves and Safety Instrumented System (SIS) valves play critical roles in process control...
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Preventive Maintenance vs. Predictive Maintenance: Key Differences, Advantages, and Applications
September 10, 2025
Introduction In industrial equipment management, Preventive Maintenance (PM) and Predictive Maintenance (PdM) are two commonly adopted strategies. While the two...
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Understanding Strong Current (Power) and Weak Current (Signal) Systems: Differences and Applications
September 9, 2025
In the field of electrical engineering, "strong current" and "weak current" are two fundamental concepts. These two types of electrical...
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Instrumentation Project Documentation Checklist
September 9, 2025
Introduction In an instrumentation and control engineering project, the project documentation package is one of the core deliverables. It records...
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Understanding Modbus Coils: The Foundation of Industrial Communication
September 9, 2025
Introduction In industrial automation and process control, the Modbus protocol is one of the most widely used communication standards. At...
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RTU Input and Output (I/O) Modules Explained
September 9, 2025
1. Introduction A Remote Terminal Unit (RTU) is a key device in industrial automation and remote monitoring systems. It converts...
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