Instrumentation

1. A Revolution in Industrial Communication In the realm of industrial automation, communication protocols are as essential as language itself. In 1979, Modicon (now Schneider Electric) introduced the Modbus protocol, designed to solve the problem of “incompatibility” between devices. At that time, each manufacturer used proprietary protocols, making it difficult for devices from different companies […]

In industries such as chemical production, paint manufacturing, and energy transportation, concepts like flash point, fire point, and auto-ignition temperature (AIT) are not abstract physical phenomena but critical temperature thresholds that define safety and risk levels. Understanding their differences and relationships is the foundation of fire and explosion safety design, storage, and transportation management. 1.

In fire safety design reviews for construction projects, even though the fuel storage room in a diesel generator room may not be large, it often faces scrutiny. Experienced designers often encounter a situation where an expert casually reviews the design and says, “Hey, no flammable gas detectors here?” followed by, “This poses a major safety

In industries such as chemical engineering, environmental protection, pharmaceuticals, municipal projects, and energy, pump selection is one of the most critical steps during the design phase. Proper pump selection directly impacts the operational safety, energy efficiency, and overall cost-effectiveness of the system. Through consultations with experienced professionals in design institutes, we have summarized the key

OverviewWhen wiring in non-explosion-proof zones, it’s crucial to prevent intersections with other areas such as explosion-proof zones, high-voltage zones, low-voltage signal zones, and water/gas pipeline areas. The primary goal is to avoid interference, mitigate safety risks like leakage or short circuits, and ensure system stability. This can be achieved through systematic design focused on physical

1. Overview of Temperature and Pressure Compensation Temperature and pressure compensation is a technique used to automatically adjust the measurement results of instruments to standard conditions, specifically 25°C and 1 standard atmosphere pressure. This is done by measuring the actual temperature and pressure on-site and using a compensation formula to convert the readings to standard

In industries where hazardous materials are handled, safety is paramount. Ensuring that all equipment is properly connected and maintained is critical to preventing accidents and protecting workers. One such vital component in these environments is the explosion-proof flexible hose, commonly used to transport fluids and gases in various industrial settings. Why Proper Connection Matters Flexible

What is Dew Point Temperature? In meteorology, dew point temperature (Td) refers to the temperature at which air, while keeping the same air pressure and water vapor content, cools down enough for the water vapor to start condensing. In simple terms, it’s the moment when air becomes “saturated with water.” When air cools down to

Introduction and Objectives Background: In industries such as chemical production, thermal power generation, metallurgy, and mining, equipment like pumps, coal mills, and turbines often generate high-frequency vibrations. These vibrations pose significant risks to the reliability of instrument wiring. Loose, improperly connected, or broken wires can cause measurement signal fluctuations and distortions, leading to false alarms,

1. DCS System Inspection Regular Inspections: Conduct inspections twice a day at designated times. Dust Removal: Clean the control cabinet and operating desk exterior weekly. Clean the interior components like computers, control stations, and fans every week. Replace the cabinet filters bi-weekly. Inspect fans daily for proper operation and replace damaged units promptly. Inspection Content: