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How to Properly Use Thermocouple Extension Wires

Temperature transmitter /

Thermocouples are widely used for temperature measurement in various industrial, laboratory, and scientific applications due to their robustness and wide temperature range. However, to ensure accurate temperature readings, it is crucial to use thermocouple extension wires (also known as compensation wires) correctly. These extension wires connect the thermocouple to a temperature measuring instrument, and if […]

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Optimizing Process Control: Understanding PV, SV, and MV in Chemical Engineering

Instrumentation /

Introduction In the automation control systems of chemical plants, three key terms frequently appear: PV (Process Variable), SV (Setpoint Value), and MV (Manipulated Variable). These terms are commonly used in control loops, instrumentation control systems, and data monitoring. Understanding the relationship between these three variables is crucial for process engineers and operators to ensure stability,

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Temperature Sensor Calibration: A Critical Science for Precision Measurement

Temperature transmitter /

Temperature measurement is a cornerstone of modern technology, as accurate temperature data is crucial in a wide range of fields, from industrial processes to scientific research. However, even the most sophisticated temperature sensors can be unreliable if not properly calibrated. Calibration is the key to ensuring measurement accuracy, and in this article, we will explore

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Can a radar level meter measure the liquid level in a cargo oil tank?

Level meter /

In modern industrial and maritime fields, accurate level measurement is key to ensuring safety and efficiency. Radar level meters, with their high precision and non-contact measurement capabilities, have gradually become important tools for level measurement. However, the question of whether radar level meters can effectively measure the liquid level in cargo oil tanks still requires

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Anubar (Averaging Pitot Tube) Flowmeter Fault Analysis and Maintenance

Flow meter /

1. Introduction to Anubar Flowmeter An Anubar flowmeter, also known as an averaging Pitot tube flowmeter, is a differential pressure-based instrument widely used to measure fluid flow in pipelines. It operates on the principle of Bernoulli’s equation, which relates pressure differences to fluid velocity. The Anubar flowmeter captures pressure readings at multiple points across the

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How to Choose the Right Flow Meter for Different Types of Liquids

Flow meter /

Flow meters are essential in industries such as chemical, light manufacturing, heavy industries, energy, agriculture, and environmental protection, all of which rely on liquid flow measurement. Among the various types of flow meters, some are suitable for measuring water, including electromagnetic, turbine, vortex, orifice plate, ultrasonic, and gear flow meters. However, the choice of flow

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The Importance of Transmitter Accessories and How to Choose Them

Pressure Transmitter /

When purchasing or consulting for transmitters, customers are often advised to buy additional accessories. Many procurement personnel may initially dismiss these recommendations, considering them unnecessary or upselling tactics. However, transmitter accessories play a crucial role in ensuring optimal performance, safety, and longevity, especially in specialized or harsh environments. This article will explain the key accessories

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Does Pressure Transmitter Range Migration Affect Stability?

Pressure Transmitter /

Some companies purchase pressure transmitters that allow a range migration of up to 100 times. However, after reducing the transmitter range by 20 times, they notice a significant decrease in stability. When the range is restored to its standard value, the stability issues disappear. What causes this phenomenon? In this article, we will discuss the

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A Comparison of Radar, Ultrasonic, and Capacitive Level Measurement Technologies

Instrumentation /

Level measurement is a critical component in industrial processes. Choosing the right level measurement technology is essential for improving operational efficiency, reducing maintenance costs, and ensuring safe operation. Three commonly used level measurement technologies are radar, ultrasonic, and capacitive technologies. Each has its advantages and disadvantages, making them suitable for different applications. This article will

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The application of radar level meters in the liquid level measurement of distillation kettles

Level meter /

In chemical production, distillation kettles serve as important process equipment. Traditional liquid level measurement methods, such as mechanical float balls or capacitive sensors, can meet certain needs to some extent. However, in complex working conditions, such as high temperature, high pressure, or highly corrosive environments, these methods often prove inadequate. In recent years, with the

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