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Why Newly Manufactured Instruments Require Certification and Calibration Before Use

Instrumentation /

Newly manufactured instruments for the chemical industry must undergo certification and calibration before they are put into use. This is crucial for ensuring the accuracy, reliability, and suitability of the instruments under actual working conditions. The need for certification and calibration can be understood in several key aspects: 1. Differences Between Factory Testing and Actual […]

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Analysis and Solutions for Zero-Point Drift in GDS Gas Detection Systems

Instrumentation /

In Gas Detection Systems (GDS), the stability of the zero-point is essential to ensure accurate measurement and reliable alarm behavior.When the zero point drifts, the detector may trigger a false alarm when there is no gas present, or fail to alarm even when a hazardous concentration exists.This creates potential safety risks in industrial environments. This

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Pre-Startup Instrumentation Checklist: Ensuring Safe and Reliable Plant Commissioning

Instrumentation /

When a new industrial plant or production unit is ready for commissioning, the instrumentation system plays a crucial role in ensuring safe startup and stable operation. Any mistakes in installation, wiring, calibration, or control logic may lead to inaccurate measurement, poor control performance, equipment damage, product quality issues, or even safety incidents. This article provides

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Understanding the Use Cases for Thermocouples and RTDs: A Detailed Guide

Temperature transmitter /

Thermocouples and Resistance Temperature Detectors (RTDs) are widely used temperature sensors with distinct characteristics and applications. Choosing the right sensor depends on the temperature range, environment, response time, and measurement precision. This article explores the differences, strengths, and use cases for thermocouples and RTDs in detail. Thermocouples: Characteristics and Applications 1. Wide Temperature Range Thermocouples

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Why Vortex Flow Meters Are Often Misunderstood — The Real Reasons Behind Their Declining Popularity

Flow meter /

Vortex flow meters have long been appreciated for their wide applicability, no moving parts, and reasonable cost. They are commonly used for steam, compressed air, gases, and clean liquid measurement. However, in many industrial sites, vortex meters are often described as “unstable, inaccurate, or difficult to maintain.”In most cases, these problems do not come from

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Case Study: High-Pressure Target Flowmeter for Concrete Pumping

Flow meter /

Background A client from Dubai required a high-accuracy flow monitoring system for concrete pumping operations. The system needed to measure both flow and pressure under demanding conditions — with a working pressure of up to 10 MPa and an abrasive medium containing cement slurry.Ordinary flowmeters often fail under such harsh environments due to excessive wear

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How to Maintain and Overhaul a Safety Instrumented System (SIS): Key Points You Must Know

Instrumentation /

Introduction The Safety Instrumented System (SIS) serves as the last line of defense for process plants. It continuously monitors critical process parameters and takes automatic action to prevent hazardous events. Proper maintenance and inspection of SIS are crucial to ensure its reliability and to maintain the required Safety Integrity Level (SIL).This article explains the core

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What is Electrical Conductivity in Wastewater Treatment Plants?

Instrumentation /

Electrical conductivity (EC) is an essential physical parameter used to characterize the ion concentration and soluble inorganic salt content in water solutions. It is widely applied in industrial wastewater treatment, reverse osmosis (RO) and ultrapure water systems, cooling water management, municipal wastewater plant process control, and environmental discharge regulation. Unlike experimental water quality indicators such

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Distinguishing Operating Pressure, Design Pressure, and MAWP in Pressure Equipment

Pressure /

In the fields of pressure vessels, heat exchangers, pipelines, and boilers, three pressure-related terms appear frequently: Operating Pressure Design Pressure MAWP (Maximum Allowable Working Pressure) Although these terms often appear together in drawings, datasheets, and inspection documents, they cannot be used interchangeably. They represent different pressure control levels that determine mechanical safety margins, operating boundaries,

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Control System Inspection Implementation Process and Key Points

Instrumentation /

Overview Control system inspections are essential for preventing failures and ensuring system reliability. A standardized process should be established across three main aspects: hardware, software, and functionality. 1. Preparation for Inspection Tools and Instruments: Multimeter Signal generator Programming software (e.g., PLC programming software) Calibration instruments (e.g., Fluke 754) Documents: Control system schematics I/O list Inspection

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