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Understanding Conductivity and Its Measurement Principles

Flow meter /

Conductivity is a crucial property that describes a material’s ability to conduct an electric current, particularly in liquid solutions. It is an essential parameter in many scientific and industrial applications, including water quality testing, chemical analysis, and industrial wastewater management. Conductivity is typically measured in Siemens per meter (S/m), but depending on the context, microsiemens […]

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Understanding Zero Suppression and Elevation in Pressure Transmitters

Pressure Transmitter /

In the field of industrial instrumentation, pressure transmitters often require adjustments to their measurement range, especially when installed in varying physical positions relative to the pressure tapping point. This process is known as zero migration, which includes zero elevation, zero suppression, and no migration. Understanding and properly adjusting for these conditions is essential to ensure

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What is the voltage between the positive terminal of a 24V DC instrument and ground? What about the negative terminal? Why is it like this? What happens if the negative terminal is grounded? What happens if the positive terminal is grounded?

Instrumentation /

In a 24V DC power system, if neither terminal is connected to ground (i.e., the system is floating), the voltage between each terminal and ground is undefined and may fluctuate. However, once the power supply is connected to an instrument, the reference potential stabilizes, and this typically has no negative effect on instrument operation. When

What is the voltage between the positive terminal of a 24V DC instrument and ground? What about the negative terminal? Why is it like this? What happens if the negative terminal is grounded? What happens if the positive terminal is grounded? Read More »

Management System for Instrumentation Control Systems (DCS, SIS, PLC)

PLC /

To strengthen the management of control systems and ensure the safe, stable operation of instrumentation control systems such as DCS (Distributed Control System), SIS (Safety Instrumented System), and PLC (Programmable Logic Controller), this management policy is established. It aims to improve the environment of the control cabinet room, facilitate system maintenance, and prevent accidents effectively.

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Detailed Guidelines for Instrument Calibration and Measurement Procedures

Instrumentation /

Instrument calibration and measurement procedures are essential for ensuring the accuracy and reliability of equipment used in laboratories, calibration facilities, and even within industrial enterprises. Adhering to proper calibration guidelines is crucial for maintaining quality standards and ensuring traceability of measurements. This article provides a detailed overview of the purpose, responsibilities, and processes involved in

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How Often Should a Pressure Gauge Be Calibrated? Why Is Calibration Essential?

Pressure Transmitter /

Pressure gauges are widely used in industrial settings, laboratories, and even daily life. Despite their ubiquity and critical role in safety, their calibration schedules are often overlooked. Some may think, “As long as the needle moves, it’s fine.” However, nothing could be further from the truth. Without regular calibration, a pressure gauge can accumulate measurement

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Application of Magnetic Level Gauges in the Food and Beverage Industry

Level meter /

Magnetic level gauges have become essential equipment in the food and beverage industry due to their hygienic design, intuitive visual indication, and robust corrosion resistance. This article provides a detailed analysis from the perspectives of core application scenarios, technical advantages, representative case studies, and challenges with practical solutions. 1. Core Application Scenarios Liquid Processing and

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Understanding the “Dead Zone” in Magnetostrictive Level Transmitters

Level meter /

In industrial liquid level measurement, magnetostrictive level transmitters are widely used due to their high precision, reliability, and ability to measure liquid levels continuously. However, like many other measuring instruments, these devices have a “dead zone” (also called a blind zone)—a small range in which accurate level measurement is not possible. What is the Dead

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Understanding the Relationship Between Nominal Pipe Size (DN), Inner Diameter, and Outer Diameter

Instrumentation /

Introduction In piping systems, selecting the correct pipe size is essential for ensuring compatibility, safety, and optimal performance. However, confusion often arises around the term “Nominal Diameter” (DN) and its relationship with a pipe’s outer diameter (OD) and inner diameter (ID). This article aims to clarify these concepts and provide practical guidance for selecting and

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High-Reliability Level Measurement Solution for Oil Well Christmas Tree Systems

Level meter /

1. Overview The Christmas Tree system is a critical component in oil and gas extraction, responsible for regulating flow and pressure at the wellhead to ensure safe and efficient production. Accurate liquid level measurement within this system plays a vital role in optimizing production efficiency and avoiding equipment damage or safety hazards. To meet these

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