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How to Properly Install a Temperature Sensor

Temperature transmitter /

Introduction Temperature sensors are among the most commonly used detection devices in industrial and environmental monitoring systems. Platinum resistance temperature detectors (RTDs), such as the Pt100, are known for their high measurement accuracy and stable performance. These sensors are widely applied not only for process temperature monitoring but also as reference standards in calibration systems. […]

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Understanding the Differences Between Availability, Reliability, and SIL

PLC /

In the fields of industrial automation, engineering, and functional safety, three concepts often arise: Availability, Reliability, and Safety Integrity Level (SIL). Although they are related to system performance and safety, their definitions, evaluation methods, and applications are distinct. This article explores the core differences, applications, and evaluation techniques of each. 1. Availability Definition: Availability refers

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Understanding the Relationship Between SIL and PFDavg in Low Demand Mode

PLC /

1. What Is SIL? SIL stands for Safety Integrity Level, a key concept defined in the international functional safety standard IEC 61508. It represents the level of risk reduction provided by a Safety Instrumented Function (SIF). SIL is typically used to describe the reliability and effectiveness of Safety Instrumented Systems (SIS) in preventing hazardous events.

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Practical Guide to Troubleshooting Dual-Flange Level Transmitters

Level meter /

Introduction Dual-flange level transmitters are widely utilized in industries such as chemical processing, petroleum, natural gas, and power generation for precise level measurement. However, the complexity of operational environments and various influencing factors can lead to diverse malfunctions over extended use. Effective troubleshooting not only ensures long-term operational stability but also significantly reduces maintenance costs.

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Three Key Protective Devices in Chemical Automation Systems: Signal Isolators, Safety Barriers, and Surge Protectors

Instrumentation /

In industrial automation and electrical control systems, especially within chemical plants, maintaining signal integrity and ensuring the safety of electrical components is critical. Three types of devices play essential roles in this protection framework: signal isolators, intrinsic safety barriers, and surge protection devices (SPDs). Each has distinct functions and principles, forming a multi-layered defense system

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Piezoelectric vs Strain Gauge Sensors: Which Is Better for You?

Sensors /

Introduction Force and torque measurement are foundational to industrial automation, materials testing, and structural monitoring. Two common sensor technologies dominate the field: piezoelectric sensors and strain gauge sensors. While they both serve the purpose of force measurement, they differ significantly in terms of working principle, performance characteristics, and application suitability. So which one should you

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Rethinking PID Control: Philosophy, Practice, and Engineering Truths

PLC /

PID, short for Proportional–Integral–Derivative, is one of the most widely used control strategies in industrial automation. Despite its simplicity in formulation, PID encapsulates a profound understanding of time, feedback, and human decision-making logic. This article explores the historical context, philosophical underpinnings, engineering applications, and ongoing challenges of PID control in the industrial field. 1. What

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Advantages of Millimeter-Wave Radar Level Meter

Level meter /

The millimeter-wave radar level meter is a radar level meter that operates in the millimeter-wave frequency band and has been widely applied in industrial measurement in recent years. As a leader in modern technological advancements, the millimeter-wave radar level meter has gradually replaced traditional level meters due to its unique technological advantages. But what are

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Emergency Response Procedures for DCS/PLC System Failures: Eight Critical Scenarios

PLC /

General Guidelines In line with the principle of “safety first, prevention-oriented, and comprehensive management,” this emergency response guide focuses on fast and accurate handling of emergencies in Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC). The goal is to ensure the safety of personnel and equipment while establishing a long-term response mechanism to improve

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