admin_zero, Author at Just Measure it - Page 49 of 359

admin_zero

Infrared vs. Ultraviolet Flame Detectors: Principles, Applications, and Maintenance

Instrumentation /

1. Introduction Flame detectors are critical components of boiler furnace safety supervision systems (FSSS). Their primary function is to monitor combustion status in real time and provide signals once flame instability or extinction occurs, ensuring the timely shutdown of fuel supply. Among flame detectors, infrared (IR) flame detectors and ultraviolet (UV) flame detectors are the […]

Infrared vs. Ultraviolet Flame Detectors: Principles, Applications, and Maintenance Read More »

Do Modbus Networks Always Require Termination Resistors?

PLC /

Abstract In Modbus communication systems based on RS-485, termination resistors are often mentioned as a means of improving signal integrity. However, whether they are always required depends on several technical factors such as cable length, baud rate, and network topology. This document explains the principles, application scenarios, and practical guidelines for deciding when to use

Do Modbus Networks Always Require Termination Resistors? Read More »

Why Radar Level Transmitters Often Provide Inaccurate Readings – Causes and Practical Solutions

Level meter /

Abstract Radar level transmitters are widely used in chemical storage tanks, wastewater basins, and bulk solids silos. However, many engineers complain about unstable readings, false alarms, or persistent measurement errors. This article explains the underlying principles, highlights common mistakes, and provides practical guidelines to ensure accurate radar level measurement in real-world applications. 1. Working Principle

Why Radar Level Transmitters Often Provide Inaccurate Readings – Causes and Practical Solutions Read More »

The Role and Importance of Temperature Transmitters in Industrial Applications

Temperature transmitter /

1. Introduction In modern industrial production, transmitters have become an indispensable category of measuring instruments. By integrating transmitters into traditional equipment, operators can achieve easier operation and maintenance, enhanced accuracy, and improved safety performance.In automated control systems, transmitters are considered a critical component, ensuring the stable and efficient operation of the entire system. Temperature is

The Role and Importance of Temperature Transmitters in Industrial Applications Read More »

Compliance Requirements for Tank Level Measurement

Tank /

1. Why Redundancy Is Essential Storage tanks usually contain hazardous media such as oil, acids/alkalis, liquid chlorine, or liquefied hydrocarbons. Any leakage can lead to catastrophic accidents.Therefore, regulations mandate redundant level measurement systems: At least two instruments based on different principles (e.g., radar + vibrating level switch) must be installed as backups. Independent alarm and

Compliance Requirements for Tank Level Measurement Read More »

Understanding SIS, SIF, SIL, SILa, and SIL0: Key Components of Industrial Safety Systems

PLC /

In industrial processes, ensuring safety and preventing catastrophic failures are paramount. Safety Instrumented Systems (SIS) and their associated functions and assessments, such as Safety Instrumented Functions (SIF) and Safety Integrity Levels (SIL), play a critical role in managing and mitigating risk. Here, we’ll discuss these terms in detail, including the distinctions between them and their

Understanding SIS, SIF, SIL, SILa, and SIL0: Key Components of Industrial Safety Systems Read More »

Chemical Instrumentation Selection: A Practical Guide

Instrumentation /

Selecting the right instrumentation is a critical aspect of ensuring the safety, stability, and efficiency of chemical processes. The selection process must take into account a variety of factors, such as process conditions, medium characteristics, environmental requirements, and measurement precision. This guide outlines the key steps and considerations to help streamline the selection process. 1.

Chemical Instrumentation Selection: A Practical Guide Read More »

Key Requirements for PLC Installation: Essential Guidelines for Instrumentation Engineers

PLC /

Programmable Logic Controllers (PLCs) are designed to operate reliably in industrial environments, but proper installation practices are critical to ensure long-term stability, safety, and maintainability. This document summarizes the key requirements for PLC installation, covering environmental conditions, grounding, cabinet setup, commissioning, redundancy testing, program backup, and software maintenance. 1. Environmental Requirements Enclosure: Install PLCs in

Key Requirements for PLC Installation: Essential Guidelines for Instrumentation Engineers Read More »

Comparative Analysis of Orifice Plates and Nozzles in Differential Pressure Flow Measurement

Flow meter /

Abstract Orifice plates and nozzles are two of the most widely used primary elements in differential pressure (DP) flow measurement. Both create a localized constriction in the pipeline to generate a pressure drop, which is then related to flow rate using Bernoulli’s and continuity equations. Despite sharing the same principle, they differ significantly in geometry,

Comparative Analysis of Orifice Plates and Nozzles in Differential Pressure Flow Measurement Read More »

Self-Optimizing Control (SOC): Rethinking Process Optimization in Chemical Systems

Instrumentation /

In large-scale chemical control systems, a typical structure involves a hierarchical separation of control and optimization layers based on time scales. The system is divided as follows: Basic Control (seconds) Advanced Control (minutes) Real-time Optimization (hours) Scheduling (days/weeks) Planning (months/years) This separation simplifies complex problems by addressing different time scales in distinct layers. Can Advanced

Self-Optimizing Control (SOC): Rethinking Process Optimization in Chemical Systems Read More »

Translate »