Level is one of the four major thermal parameters in the process industry, along with temperature, pressure, and flow. Unlike a level meter, a level switch is a measuring instrument used to control the level. Although it cannot display or measure the level height, as an electronic component, it plays a key role in many […]
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In industrial, laboratory, and outdoor environments, instrument protection boxes and insulation boxes serve critical but distinct purposes. While both are designed to protect their contents, they differ significantly in terms of functionality, materials, design priorities, and application scenarios. This article will explore the differences between these two types of boxes and provide insight into their
Before performing a shutdown of a Distributed Control System (DCS), it is essential to conduct a thorough inspection to ensure a smooth and risk-free process. Below is a detailed checklist for pre-shutdown inspection: 1. Data Backup Purpose: To prevent data loss and ensure quick recovery in case of system failure after the shutdown. Verify that
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As a highly efficient evaporation and concentration equipment, multiple-effect evaporator is widely used in chemical, food, pharmaceutical and other fields. Its working principle is to achieve continuous evaporation and concentration of materials by repeatedly utilizing heat energy. However, how to accurately measure the liquid level in the multiple-effect evaporator is the key to improving the
PLC (Programmable Logic Controller) control cabinets are advanced automation solutions that combine compact design, reliable operation, and comprehensive functionality. These cabinets feature essential protections such as overload, short circuit, and phase loss protection. Their modularity allows them to scale with control requirements, supporting standalone automation or integration into distributed control systems (DCS) via industrial Ethernet
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In modern automation systems, the transmission and processing of signals are core components of system design. Particularly for communication between devices and systems, the integration of signals, such as SDI (Serial Data Input) and SDO (Serial Data Output), into Distributed Control Systems (DCS) is a critical technical task. This article explores how SDI and SDO
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In the mining industry, the use of radar level meters is becoming an increasingly important technological innovation. The device accurately measures the height of materials through the emission and reception of microwaves, thus providing an efficient and reliable monitoring method for mining production. The core of radar level meter lies in its advanced measurement technology.
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When it comes to key equipment such as ammoniation kettles in the chemical industry, the accuracy of liquid level monitoring is directly related to the stability of the production process and product quality. High-frequency radar level meters have shown significant application advantages in the liquid level measurement of ammoniation kettles due to their high precision
Thermocouples are widely used in various industries for temperature measurement due to their simplicity, reliability, and wide temperature range. However, their practical use often raises technical questions. This article addresses some of the most frequently encountered issues and provides solutions to help ensure accurate and stable temperature measurements. 1. Why is the thermocouple output unstable?
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Proper installation of methanol gas detectors is critical for ensuring the safety and efficiency of operations in environments where methanol leaks might occur. This document outlines comprehensive guidelines for selecting installation locations, determining the height and method of installation, wiring requirements, and other safety measures. Installation Location Near Potential Leak Sources Install detectors close to
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