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What Kind of Control Expert Does a Factory Really Need?

Understanding this question is the first step toward doing any control optimization project right. In industrial environments, a “control expert” may come from a variety of backgrounds: instrumentation selection, analytical modeling, control systems, algorithm design, lean management, continuous improvement, big data analytics, or even artificial intelligence. In my own career, I started with advanced process […]

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Troubleshooting Radar Level Measurement: Interference Factors and Mitigation Strategies

1. Introduction Radar level transmitters have become a preferred solution for level measurement in liquids, slurries, and solids due to their non-contact design, high accuracy, and wide application range. However, in challenging industrial environments—such as high-temperature steam chambers, dusty silos, or foam-prone tanks—various interferences may impact signal stability and measurement accuracy. This article explores the

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Understanding Emergency Stop Buttons: Why They Use Normally Closed Contacts

Emergency stop buttons, often referred to as “E-stop” buttons, are critical safety components in industrial machinery and electrical systems. Their main function is to allow immediate halting of machinery or electrical circuits in the case of an emergency. A key aspect of emergency stop button design is their use of normally closed (NC) contacts. This

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Common Types of Corrosion in Chemical Plants and Effective Countermeasures

Corrosion is a significant challenge in chemical plants, impacting equipment reliability, safety, and operational efficiency. Given the exposure to various corrosive environments, chemical plant equipment often faces several types of corrosion, including electrochemical, chemical, stress, and microbial corrosion. Understanding these corrosion mechanisms and implementing appropriate countermeasures can extend equipment life, reduce downtime, and enhance safety.

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Comparative Analysis of Three Radar Level Measurement Technologies

Pulse Radar, Guided Wave Radar (GWR), and Frequency-Modulated Continuous Wave (FMCW) Introduction Radar level measurement technologies have evolved significantly over recent decades, offering diverse solutions for liquid and solid level monitoring in industrial environments. This document provides a comprehensive comparison of three mainstream radar level technologies—Pulse Radar (P-Radar), Guided Wave Radar (GWR), and Frequency-Modulated Continuous

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Sharing a UPS Power Supply: Key Considerations for Effective Use

An Uninterruptible Power Supply (UPS) is a critical component for providing temporary power backup to connected devices during power outages, fluctuations, or surges. Sharing a UPS among multiple devices can be an efficient and cost-effective solution in homes or small offices. However, several factors need to be carefully considered to ensure safe and optimal usage.

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Protecting Chemical Plants from Freezing and Condensation During Cold Weather

As cold weather approaches, chemical plants must implement robust anti-freezing and anti-condensation measures to ensure safe production and prevent equipment malfunction. Freezing can lead to blockages, ruptures, and hazardous conditions if not properly managed. Below is an in-depth guide to essential anti-freezing measures for chemical plants: 1. Insulation for Equipment and Pipelines Selecting Insulation Materials:

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Reed Switches: Principles, Installation, Features, and Applications

1. Principles of Reed Switch Operation Reed switches, also known as magnetic switches, are electrical switches controlled by an external magnetic field. They consist of two flexible metal reeds enclosed within a sealed glass tube. The gap between the reeds is very small. The working principle is as follows: Magnetic Activation: When an external magnetic

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Absolute Pressure Transmitters vs. Vacuum (Gauge) Pressure Transmitters: A Detailed Comparison

Absolute pressure transmitters and vacuum (or negative gauge) pressure transmitters are widely used in industrial applications. The key differences lie in their reference baseline, measurement principle, and application scenarios. Below is a detailed comparison. 1. Definitions and Measurement Principles Type Definition Reference Baseline Measurement Range Absolute Pressure Transmitter Measures the pressure relative to a perfect

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Troubleshooting No Indication in Differential Pressure Flow Meters: Causes and Solutions

Differential pressure (DP) flow meters are widely used in industrial process control. When a DP flow meter shows no indication despite other equipment operating normally, it often signals either a measurement system issue or a process anomaly. This article analyzes two real-world cases and provides a structured troubleshooting guide. ✅ Case Study 1: No Flow

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