Instrumentation

1. What Is an Electrical Schematic Diagram? An electrical schematic diagram (also known as a wiring diagram or circuit diagram) is a visual representation of an electrical system. It illustrates how various electrical components are connected and how current flows through the system. These diagrams serve as the foundational reference for electrical design, installation, commissioning, […]

1. Fundamental Differences 1.1 Function and Role Category Surge Protective Device (SPD) Lightning Terminal Core Function Limits transient overvoltages (such as lightning surges or switching transients) on power or signal lines. Ensures reliable electrical connection between lightning arrestors and grounding system to discharge lightning current safely. Target Directly protects electronic equipment or control systems from

Introduction Industrial automation instruments, including pressure, flow, temperature, level, and composition analyzers, are critical for ensuring safe, stable, and efficient operations in modern production facilities. Effective lifecycle management of these instruments not only ensures operational continuity but also enhances product quality and economic returns. This document outlines 17 structured modules for managing the full lifecycle

Introduction Safety Instrumented Systems (SIS) are critical to ensuring process safety in high-risk industries such as petrochemicals, oil and gas, and power generation. A key consideration in SIS architecture is the configuration of operator stations (HMI) and engineering stations. This article addresses two common questions in SIS design: Can the operator and engineering stations be

Explosion-proof systems, especially in hazardous environments, demand a meticulous approach to ensure safety and compliance with regulations. This article outlines the essential principles for connecting explosion-proof distribution boxes with galvanized pipes, providing practical details and best practices for effective implementation. 1. Requirements for Explosion-Proof Piping Installation The installation of explosion-proof pipelines requires higher standards compared

Instrument air (IA) is a critical utility in industrial environments, providing clean, dry, and stable compressed air to pneumatic instruments, control valves, and other automation devices. Proper management and maintenance of the instrument air system are essential for ensuring the reliability and longevity of your equipment. Basic Requirements for Instrument Air Pressure Range:Typically maintained at

General Guidelines All inspections and maintenance tasks must be conducted by qualified personnel only. Maintenance work shall be carried out only after obtaining clearance from operations personnel. All observations and corrective actions must be recorded in the maintenance logbook. Use appropriate PPE and follow safety protocols at all times. 1. Safety Barrier Maintenance 1.1 Visual

1. What Is Grounding Resistance? Grounding resistance refers to the resistance encountered by electrical current as it flows from a grounding device into the earth and disperses either toward another grounding electrode or into distant ground. It includes: The resistance of the grounding conductor and electrode, The contact resistance between the grounding electrode and soil,

In the petrochemical industry, flammable gas detectors serve as a first line of defense for safety. At the heart of these detectors lies the sensor (probe)—a component that often fails unexpectedly. But contrary to popular belief, most failures aren’t due to poor quality, but rather due to environmental stress, incorrect usage, and poor maintenance practices.

In industrial environments, instruments such as flow meters, transmitters, and level gauges may encounter various operational issues. To troubleshoot and restore their proper functionality, four commonly used methods are typically applied: Power Cycling, Factory Reset, Substitution Method, and Professional Diagnostic Testing. This article provides a detailed explanation of each method, including practical scenarios, precautions, and