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Understanding Secondary Instruments: Functionality and Applications

Flow meter /

In the realm of industrial automation and control systems, secondary instruments, or secondary devices, play a crucial role in the accurate and reliable handling of data. Unlike primary instruments, which directly measure physical quantities such as temperature, pressure, or flow, secondary instruments process, display, or interpret these measurements, making them more accessible and actionable for […]

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Four-Wire vs. Six-Wire Load Cell Connections: Balancing Cost and Stability

Sensors /

In weighing systems, the connection between the load cell and the weighing indicator is critical for ensuring measurement accuracy and system reliability. There are two primary wiring methods for load cells: four-wire and six-wire configurations. Understanding the differences between these approaches is essential for selecting the right solution for your application. 1. Four-Wire Connection A

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Process Engineering: Key Elements in Ensuring Operational Efficiency and Safety

PLC /

In industrial manufacturing, process engineering plays a critical role in ensuring that production flows smoothly, products meet quality standards, and safety protocols are followed. The main areas of focus include verifying the process flow, selecting appropriate equipment, ensuring a properly functioning piping system, and confirming that valves and instruments are installed and operating correctly. Each

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What Transformation Can the Integration of DCS and HART Bring?

PLC /

Following the discussion on the HART protocol yesterday, many of you have asked how DCS and HART protocols work together. Below, I will explain the relationship between the two and how their deep integration can bring transformative changes to industrial automation. 1. Overview of DCS Systems A Distributed Control System (DCS) is a control architecture

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Should DCS System Shut-Off Valves Be Equipped with Bypass Lines?

PLC /

In process industries such as petrochemicals, oil & gas, and power plants, shut-off valves (SDVs) are critical components of safety and process control systems. They are often controlled by Distributed Control Systems (DCS) or, in safety-critical applications, by Safety Instrumented Systems (SIS). A common question during system design or plant operation is:“Can shut-off valves in

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Dual Power Supply vs. Dual Circuit Power Supply: What’s the Difference?

Instrumentation /

In industrial automation and instrumentation systems, ensuring reliable power delivery is critical to maintaining continuous operation. Two commonly used strategies to improve power system reliability are dual power supply and dual circuit power supply. Although these terms sound similar, they refer to distinct concepts. This article explains the differences and helps you understand which approach

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Classification of Communication Protocols in Instrumentation

Flow meter /

In the world of industrial automation and control systems, communication protocols play an essential role in facilitating data exchange between various instruments and devices. These protocols ensure that devices can communicate efficiently, reliably, and securely, making it possible to monitor, control, and optimize processes. This article explores the most commonly used communication protocols in instrumentation,

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Piping Installation: Field-Proven Insights and Best Practices

Pipeline /

1. Common Pitfalls in Piping Installation Piping installation is often perceived as a routine task in industrial projects. However, even minor mistakes can lead to catastrophic system failures. Based on years of field experience, here are six common issues encountered during piping installation: 1.1 Poor Interpretation of Drawings and Improper Fit-Up In many projects, construction

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Case Study: No Flow Display on an Oval Gear Flow Meter After Disassembly and Reassembly

Flow meter /

1. Operating Principle An oval gear flow meter is a highly accurate positive displacement meter that uses mechanical measuring elements to divide the flowing fluid into discrete, known volumes. It is widely used for measuring micro-flows and viscous media such as glue, honey, silicone, and lubricating grease. As fluid passes through the meter, the differential

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