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PLC

A Comprehensive Guide to Safety Barriers (Intrinsically Safe Barriers) Introduction

In industries like oil and gas, chemical processing, and pharmaceuticals, where hazardous environments with the risk of explosions are common,...
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Instrumentation

Understanding Nested Control Loops in Process Automation

1. Introduction In process control systems, it is common to encounter situations where the effectiveness of one control loop depends...
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Instrumentation

Causes and Preventive Measures for Instrumentation Cable Tray Cover Falling Off

In industrial environments, the integrity of instrumentation cable trays is essential for ensuring the safety and stability of control systems....
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PLC

Comprehensive Overview of the TCP/IP Protocol Stack

The TCP/IP protocol suite (Transmission Control Protocol/Internet Protocol) is the foundational communication protocol for the modern Internet. It adopts a...
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Flange

Do Five-Bolt Flanges Require Electrical Bonding? A Detailed Analysis

Introduction In industrial piping systems, ensuring electrical continuity and safety is critical—especially in environments where flammable or explosive media are...
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Sensors

What Is a Torque Sensor and Where Is It Used?

1. Working Principle of a Torque Sensor A torque sensor, also known as a torque transducer, is a device that...
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Instrumentation

Low-Voltage Electrical Design: Comprehensive Knowledge on Push Buttons

1. Overview of Push Buttons A push button is a type of manual control switch that is actuated by applying...
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Flow meter

The Structure and Functions of Electromagnetic Flowmeters

Electromagnetic flowmeters are widely used in industrial applications for measuring the flow rate of conductive liquids. Their structure is composed...
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Level meter

Reliable Liquid Level Detection in Industrial Applications: A Complete Guide to Vibrating Level Switches by Zero Instrument

1. Introduction In industrial automation, accurate and reliable liquid level control is essential to ensure operational safety, prevent overflow or...
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Level meter

Key Considerations When Using a Submersible Level Transmitter

1. Introduction A submersible level transmitter is a highly reliable device used for measuring liquid levels in various environments. Designed...
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Instrumentation

Instrumentation Modification Without Risk Assessment Causes Plant-Wide Shutdown: A Case Study from a 120,000 T/Y PVC Facility

Background In a 120,000 tons-per-year polyvinyl chloride (PVC) production facility, a critical incident occurred during the commissioning of newly installed...
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PLC

Understanding the Relationship Between RS-485 and Modbus

1. Introduction In industrial automation and instrumentation, the terms RS-485 and Modbus frequently appear together. However, they refer to two...
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PLC

Converting RS-485 to Ethernet: An In-Depth Look

RS-485, also known as Recommended Standard 485, is a widely used protocol for industrial communication and data transfer. It is...
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Level meter

Material Selection Guide for 4-Wire Ultrasonic Level Sensor Transducers

Ultrasonic level sensors are widely used in industries such as chemical processing, wastewater treatment, oil storage, and metallurgy. To ensure...
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Sensors

Sensor Drift: Causes, Mechanisms, and Effective Compensation Methods

Introduction Sensor drift refers to the phenomenon where a sensor's output deviates from the true value over time, even when...
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Level meter

Application of Magnetic Level Indicators in Challenging Industrial Environments

Introduction Magnetic level indicators (MLIs) have become a reliable and essential solution for continuous level monitoring in extreme industrial environments....
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Flow meter

Application of Magnetic Level Gauges in Environmental Engineering

Dalian Zero Instrument Technology Co., LTD Magnetic level gauges have become essential instruments in environmental engineering due to their corrosion...
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PLC

Why is the 4-20mA Signal Standard and Advantages of the 4-20mA Signal in Industrial Automation

The 4-20mA signal has become the standard in industrial control systems and process automation because of its proven reliability and...
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Level meter

Solving Mud Tank Level Measurement Challenges in Oil & Gas Drilling

1. Background: Why Accurate Mud Level Control MattersIn both onshore and offshore drilling operations, the continuous supply and precise formulation...
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Instrumentation

Comprehensive Troubleshooting Guide for Temperature, Flow, and Pressure Instruments in Petrochemical Automation Systems

Introduction In petrochemical production, automation instruments are the nervous system of the process. They play a critical role in ensuring...
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