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Atmospheric, Gauge, and Absolute Pressure: Concepts and Their Relationships

Pressure Transmitter /

When discussing gas or liquid pressure, three common terms are often used: atmospheric pressure, gauge pressure, and absolute pressure. Understanding these concepts is essential in fields like engineering, meteorology, and fluid dynamics. Let’s break down each term and explore how they are related. 1. Atmospheric Pressure  Atmospheric pressure is the pressure exerted by the weight […]

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Safety Instrumented Systems (SIS) and Safety Integrity: A Comprehensive Overview

Flow meter /

Safety Instrumented Systems (SIS) play a critical role in industrial processes, particularly in environments where hazardous events pose significant risks to people, equipment, and the environment. A well-designed SIS is crucial for maintaining safe operations, and its reliability is often defined by its safety integrity. Safety integrity measures the ability of a SIS to perform

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Application of radar level meter in water diversion of reservoir

Level meter /

In modern water conservancy project management, accurate water level measurement is essential to ensure the effective use of water resources and reservoir safety. As an advanced water level measurement technology, radar level gauges are increasingly used in reservoir water diversion, significantly improving the efficiency and accuracy of water level monitoring. Radar level meters are based

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The Difference Between 0–20mA and 4–20mA Current Output Transmitters

PLC /

Current output transmitters are essential devices used in industrial automation and control systems for transmitting sensor signals over long distances without being affected by electrical noise. Among the most commonly used standards are the 0–20mA and 4–20mA current output ranges. While both are designed to transmit analog signals, they serve different purposes and have distinct

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Accurate application of radar level meter in salt storage tank measurement

Level meter /

Salt storage tanks are important facilities for storing industrial salt or edible salt. Accurate measurement of the material inside them is crucial to ensure the continuity of the production process and the stability of product quality. Traditional level measurement methods are often limited by physical conditions and cannot provide high-precision measurement data. The application of

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Key Factors Determining the Workload of Instrumentation Operation and Maintenance

Flow meter /

Instrumentation operation and maintenance (O&M) workloads depend on several critical factors. Among them, instrument selection and installation practices play a vital role in the overall O&M effort required. This article will explore these two key elements in detail, expanding on how each influences long-term maintenance and reliability. 1. Instrumentation Selection Instrumentation selection is typically guided

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The difference between signals, active signals, passive contacts and active contacts

Flow meter /

Passive signal and active signal 1. Definition of passive signal and active signal Active and passive refer to whether there is a power supply, which is used to distinguish whether the signal instrument needs to be powered. Analog signals are all active, whether they are two-wire, three-wire or four-wire signals. Two-wire and three-wire signal instruments

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Distinguishing Sensitivity and Precision in Instruments

Flow meter /

In the field of instrumentation, there are technical parameters that may seem similar at first glance but actually represent distinct characteristics. Today, let’s delve into the differences and connections between two such parameters: sensitivity and precision in instruments. Sensitivity of Instruments: Sensitivity refers to an instrument’s ability to measure the smallest detectable quantity. The smaller

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How radar level meter solves urban waterlogging problem

Level meter /

With the acceleration of urbanization, urban waterlogging has become a headache for urban planning managers. It not only affects urban traffic and residents’ daily lives, but may also cause damage to urban infrastructure. Therefore, timely and accurate monitoring of water level changes is of great significance for drainage scheduling and disaster prevention. This article will

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