Instrumentation

NAMUR NE 43 is a widely adopted signal standard in the field of industrial automation, primarily used for transmitting fault conditions and diagnostic information in process control instruments. This standard defines specific ranges within analog signals (typically 4 to 20 mA current signals) that indicate normal operating states and those that signify device faults or […]

1. Introduction The review of instrumentation construction drawings is a critical step to ensure project safety, efficiency, and cost-effectiveness. A thorough and systematic review helps identify potential issues in advance, avoiding errors and rework during construction. This document outlines the key aspects and best practices for reviewing instrumentation drawings. 2. Pre-Review Preparation As the saying

In the world of industrial automation and electrical safety, terms like protective earthing (PE) and enclosure grounding are often used interchangeably. However, while they may physically share the same grounding point, their purposes, design principles, and regulatory implications are fundamentally different. Understanding this distinction is crucial for engineers, electricians, and system integrators alike. ✅ What

Chemical instrumentation plays a vital role in ensuring the safe and stable operation of chemical production processes. Proper selection must comprehensively consider process conditions, media characteristics, environmental requirements, measurement accuracy, and more. This guide presents the core logic and key steps for instrument selection in chemical industries. 1. Define Process Requirements: Start with the Measurement

Natural weather phenomena such as wind, rain, lightning, and stray electricity can significantly impact field instrumentation. These effects span mechanical, electrical, and environmental domains, potentially resulting in measurement inaccuracy, device failure, or even catastrophic damage. This document outlines the risks and provides comprehensive protective strategies. 1. Impact of Wind 1.1 Mechanical Damage Strong winds may

1. Introduction In petrochemical plants, rotating machinery such as compressors and large process pumps play a vital role in stable and continuous production. These machines often operate under high temperature, high pressure, and hazardous conditions, demanding rigorous control and monitoring. Shaft instrumentation systems provide critical data on key parameters such as shaft vibration, axial displacement,

1. Introduction During cable installation, the minimum bending radius is a key quality control indicator. This article explains why bending radius matters, what it actually means, and what standards apply to different types of cables. 2. What Is Minimum Bending Radius? The minimum bending radius refers to the smallest radius a cable can be bent

Anyone who works with materials can’t avoid one key term — creep. Have you ever encountered this? A plastic part slowly deforms over time? A PTFE gasket that fit perfectly at installation ends up sagging after a few months? Is this because the material is just too “soft”?Or is there something deeper—perhaps molecular structure—that leads

Understanding the Root Causes and How to Prevent Them 1. Background: A Common Yet Costly Problem Many industrial users—especially in chemical plants—have reported frequent failures with corrosion-resistant probes from various brands. Despite switching suppliers, the coating on the sensor heads often peels off within a few months, leading to corrosion and sensor malfunction. Instrumentation in

Cable laying standards are essential to ensure the safety, stability, and longevity of cable systems in industrial and infrastructure projects. This guide outlines key procedures and technical considerations, covering pre-installation checks, installation in various environments, cable fixing and spacing, joint and terminal production, and safety precautions. 1. Pre-Installation Preparation 1.1 Cable Inspection Visual Check: Ensure