Instrumentation

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: […]

Instrument calibration is a critical process to ensure the accuracy and reliability of measurement equipment in any business environment. However, completing the calibration itself is not the end of the process. Two essential steps must follow to ensure the results are properly utilized and documented. These steps are recording and archiving calibration results and updating

In the era of industrial automation, where systems are becoming larger and more intelligent, the I/O modules in Distributed Control Systems (DCS) — which act as the “nervous system” linking the field to the control center — are facing unprecedented challenges. The expansion of plant size leads to a dramatic increase in signal points, while

A signal generator is a device used to provide various electrical signal excitations for electronic devices or systems. It can output signals such as voltage, current, resistance, and thermocouple, among others. These generators are widely used in fields like electronics engineering, industrial automation, and scientific research. Below is a detailed introduction: 1. Key Features 1.1

Introduction In industrial automation, smart devices, and measurement & control systems, sensors serve as the key bridge connecting the “physical world” with the “digital system.” As the critical component interacting directly with the object being measured, the sensor’s performance determines the accuracy of subsequent signal processing and control decisions. Definition, Role, and Core Concept Definition

Despite being considered “low-tech” or overly simple by some engineers, the dominance of PID (Proportional-Integral-Derivative) controllers in the industrial control domain remains unchallenged. There are several reasons for this enduring supremacy, which are outlined below: 1. Simple yet Effective PID controllers are based on a simple mathematical model, making them easy to understand and implement.

In the design and installation of Safety Instrumented Systems (SIS), one seemingly “convenient” practice—routing Digital Input (DI) and Digital Output (DO) signals through the same multi-core cable—may present serious risks. Did you know that this wiring method is not only discouraged, but also prohibited in many high-reliability environments? In this article, we will explore the

Steam is one of the most widely used energy carriers in industrial processes. From food processing and pharmaceuticals to chemical plants, paper mills, and power generation, steam plays a crucial role as both a heat transfer medium and a source of mechanical energy. This article provides a system-level overview of how a steam and condensate

1. General Concept of DCS System A Distributed Control System (DCS) is a computer-based control system used for industrial process automation. It combines distributed control units (at the field level) with a centralized operation and monitoring system (at the upper level) to achieve real-time measurement, control, alarm handling, trend analysis, and management of production processes.

In the selection and calibration of instruments, we often hear discussions like: “This pressure transmitter is 0.5 class, the accuracy should be fine” or “The measurement result is off by 0.2 kPa, the accuracy of this instrument is poor.” However, these statements confuse two crucial concepts: Accuracy and Accuracy Class. While they are related, they