Instrumentation

In the refining industry, there are tens of thousands of advanced control systems in operation, and when extended to sectors such as chemicals and power, the global number of such systems could reach hundreds of thousands. While offline mechanistic models exceed the scale of advanced control applications, real-time optimization based on steady-state mechanistic models is […]

In the oil, chemical, and energy transportation industries, the term “loading arm” (also known as liquid unloading arms) is commonly encountered. It is an indispensable piece of equipment in liquid material handling systems, widely used for transporting flammable, explosive, or toxic liquids due to its safe, efficient, environmentally friendly, and sealed loading and unloading capabilities.

The core logic behind the source calibration method is to trace the origin of data (such as original collection devices, reference documents, or authoritative data sources) and verify its accuracy by comparing it with a “source standard.” This method is especially suitable for data types where the origin is traceable and there is an objective

An outstanding chemical instrumentation technician is defined by a combination of solid technical knowledge, process adaptation, safety compliance, and efficient collaboration. Excellence in this field requires a multifaceted approach, focusing on continuous improvement across several areas. Below are key directions for becoming an outstanding technician: 1. Mastering Technical Skills: From “Basic Understanding” to “Expertise” 1.1

In engineering projects, the intersection of process and electrical instrumentation design often becomes a hotspot for issues. From installation interfaces to instrument gas leaks, from design defects in complete sets of equipment to the “three-proof” requirements for control cabinets, these seemingly minor details can lead to significant risks during construction. Why do these problems keep

In high-risk environments such as petrochemical plants, gas stations, tunnels, and laboratories, toxic and combustible gas detectors serve as the first line of defense for both personnel safety and the stable operation of equipment. So, do these detectors require verification or calibration? What is the difference between these two processes? Who is responsible for them,

Instrument failures can be complex and difficult to diagnose immediately. It’s important to stay calm and analyze the situation step by step. The faults can generally be divided into three sections: on-site detection, intermediate transmission, and terminal display. Seasonal factors, such as preventing high temperatures in summer and freezing in winter, should also be considered.

As an instrument technician, it’s essential to learn how to proactively reflect on your work, summarize your experiences, and improve your maintenance skills. This process is key to transforming repetitive tasks into expert-level capabilities. Below is a comprehensive framework that moves from “reflection” to “improvement,” which you can apply based on your own experiences. Part

1. Do You Really Understand Explosion-Proof Nameplates? In chemical plants, it is common to see explosion-proof motors or vibrating level switches with nameplates marked with: Ex ia IIC T4 ~ T6 Ga While many engineers recognize this as the explosion-proof classification, the meaning of “T4 ~ T6” is often misunderstood. This marking refers to the

In the field of instrumentation, understanding the differences between analog and digital instruments is crucial for making informed decisions. This article explains why digital instruments are more stable and less susceptible to environmental interference compared to their analog counterparts. Analog vs. Digital Signals In analog instruments, signals are continuous, meaning they can fluctuate infinitely within