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Common Errors in Instrument Calibration Practices

Instrumentation /

Instrument calibration is a crucial process in ensuring measurement accuracy and reliability. Despite strict metrology standards and guidelines, errors can still occur due to improper implementation or uncontrollable factors. These errors may compromise the validity of calibration results. Below, we explore common errors in instrument calibration and provide recommendations for minimizing them. 1. Errors in […]

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The Impact of Particle Size Distribution on Level Measurement Instruments and Applications

Level meter /

Introduction In industrial processes, level measurement is a critical step to ensure stable production and quality control. Level sensors monitor the storage states of materials in containers, silos, and tanks, providing essential data for process optimization and safety. For solid granular materials, particularly powders or particles, particle size distribution significantly affects the precision, stability, and

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Why can’t the flow orifice be installed upside down?

Flow meter /

A correctly installed orifice plate should have the constriction facing the direction of the fluid. The fluid contracts locally at the throttling center, increasing the flow rate and reducing the static pressure, so a static pressure difference is generated before and after the orifice plate, and this pressure difference has a certain functional relationship with

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A Comprehensive Analysis of Industrial Bus Communication Protocols Introduction

PLC /

In modern industrial automation, robust communication protocols serve as the cornerstone of efficient system operations. With advancements in technology, industrial fieldbus protocols have evolved to facilitate faster, more stable, and intelligent data exchange between devices. This article delves into three widely adopted industrial communication protocols—Modbus, PROFIBUS, and Foundation Fieldbus. We will explore their various variants,

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Types of Pressure Gauges and Their Accuracy Classes

Pressure Transmitter /

Pressure gauges are essential instruments widely used to measure the pressure of gases and liquids in various applications. Depending on the environment, pressure range, and accuracy requirements, several types of pressure gauges are available. This article provides an in-depth overview of common pressure gauge types and their accuracy classes to aid in selecting the right

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The Disconnect Between Words and Actions in Process Control

PLC /

Introduction In the field of process control, discrepancies between words and actions are prevalent. These inconsistencies are often linked to the failure to integrate knowledge with execution. Knowledge and action are two sides of the same coin in problem-solving: knowledge without application is futile, and action without understanding is reckless. However, the issue of incongruence

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Detailed Overview of Tank Area Instrumentation

Instrumentation /

Tank area instrumentation is critical for monitoring and controlling parameters in storage facilities, ensuring operational efficiency, safety, and regulatory compliance. This article explores the key types of instruments used in tank areas, their working principles, selection criteria, and best practices for maintenance. 1. Level Measurement Instruments a. Hydrostatic Level Transmitters Working Principle: These instruments measure

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Common Issues in Distillation Column Temperature Control

PLC /

Distillation column control revolves around maintaining material balance, operational stability, and product quality. Material and energy balances, as well as preventing liquid leakage and flooding, are essential considerations in any control strategy. 1. Importance of Product Purity The quality indicators of a distillation column typically include the purity of either the top or bottom product.

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