Instrumentation

Introduction In industrial boiler systems, the flame detector (also called a flame scanner) plays a critical role in monitoring combustion conditions and ensuring safe operation. By continuously detecting the presence and stability of the flame, the flame detection system provides essential feedback for safety interlocks, burner management systems (BMS), and combustion control. When a flame […]

In industrial instrumentation systems, grounding and shielding problems are among the most common causes of signal instability. A device may work perfectly in the laboratory but behave differently after installation in the field: Analog signals fluctuate when a variable frequency drive (VFD) starts. Data acquisition systems show unexpected noise spikes when motors operate. RS-485 communication

When selecting an O-ring, many engineers first ask: “Is it NBR or FKM? What is the hardness?” These factors are important, but they are not the whole story. In many industrial applications, O-rings are marked with specifications such as: NBR 70 FKM 75 30 × 3 mm At first glance, the material and size information

Why Semiconductor Materials Depend on Advanced Chemical Technologies If semiconductors are considered the “brain” of modern electronic devices, then semiconductor materials are the “cells” and “blood” that support this powerful brain. Behind every advanced chip, there is a complex supply chain of high-purity chemical materials. Many of these critical materials come directly from the chemical

Introduction Thermocouples are one of the most widely used temperature measurement devices in industrial applications such as chemical plants, power stations, steel mills, and process industries. However, even a high-quality thermocouple can provide incorrect temperature readings if the compensation wire is connected incorrectly. During field commissioning and instrument maintenance, technicians often encounter two common problems:

Many chemical projects reach the final stage and only then begin preparing acceptance documents, arranging inspections, and organizing compliance reviews. However, problems discovered during acceptance are often not new. In many cases, they have already existed throughout the earlier stages of engineering design, procurement, construction, commissioning, and change management. For example: Safety systems may already

If you work with pressure transmitters, pressure gauges, control valves, or valve positioners, you may have encountered this situation during calibration: You gradually increase the input to a certain value and record the instrument output. Then you approach exactly the same input value from the decreasing direction — but the instrument gives you a slightly

A thermocouple is one of the most widely used temperature sensors in industrial applications. However, after long-term operation under high temperature, vibration, corrosion, or mechanical stress, thermocouples may fail and cause inaccurate temperature readings. This article introduces several practical methods to quickly check whether a thermocouple is working properly in the field. 1. Visual Inspection

Introduction Orifice plates and flow nozzles are two widely used primary elements in differential pressure (DP) flow measurement systems. Although both devices work based on the same principle — creating a pressure difference by restricting fluid flow — many engineers still face difficulties when selecting the right solution for a specific application. Should you choose

Introduction Online monitoring instruments are automated measurement systems that use sensors, signal processing technology, and communication networks to continuously monitor industrial and environmental parameters in real time. Unlike traditional manual measurement methods, online monitoring systems can collect, analyze, and transmit measurement data automatically, helping industries improve process control, safety management, and operational efficiency. Modern online