Instrumentation

A Complete Selection Guide for Nitrogen Blanketing and Oxygen Monitoring Applications An online oxygen analyzer is a critical instrument used for continuous measurement and monitoring of oxygen concentration in process gases. In storage tanks containing flammable liquids, solvents, chemicals, or sensitive materials, accurate oxygen monitoring is essential to maintain safe operating conditions and prevent fire […]

In industrial instrumentation systems, gaskets are small components, but they often determine whether a connection remains reliable or develops leakage problems. A leaking pressure gauge connection, sweating around a transmitter manifold, or bubbling at a level gauge flange is not always caused by the instrument itself. In many cases, the actual problem comes from incorrect

Introduction When selecting industrial instruments, engineers often face questions like: “This instrument has 0.5% accuracy, while another one has 0.2% accuracy. Why is the price so different?” “Is 0.5% accuracy enough for my application?” “Does a higher accuracy instrument always mean better performance?” Accuracy class is one of the most misunderstood specifications in industrial measurement.

When designing substations and high-voltage transmission systems, engineers often encounter four terms: AIS, GIS, HGIS, and GIL. They are all related to high-voltage equipment and insulation technologies, but their functions are fundamentally different. AIS, GIS, and HGIS are mainly used for high-voltage switchgear arrangements inside substations, while GIL is designed as a high-voltage power transmission

Many people assume that the neutral wire is simply a “wire with no electricity.” In industrial electrical systems, however, this misunderstanding can easily lead to incorrect troubleshooting and even safety hazards. Power distribution cabinets, control panels, variable frequency drives (VFDs), UPS systems, lighting circuits, PLCs, and industrial instruments all rely on conductors such as L,

Let me ask you a simple question. Your plant’s ERP system probably generates beautiful energy reports. Your production dashboards likely show clean and impressive trend charts. Now here’s another question: How has the temperature sensor at Measurement Point 12 on Furnace No. 3 been drifting over the past week? Is it showing any early signs

What Is Small Signal Cutoff? Have you ever encountered these situations? The pipeline is completely stopped, but the flowmeter still displays 0.2 m³/h. The process has been shut down, yet the totalized flow continues to increase. The DCS constantly shows a tiny flow value even though there is no actual flow. In many cases, the

Why Do Industrial Instruments Suddenly Lose Communication? In industrial automation systems, engineers often encounter frustrating communication problems: Instrument data jumps randomly Measured values fluctuate abnormally Communication becomes unstable or frequently disconnects PLC, HMI, or SCADA systems lose connection unexpectedly Sensor signals become noisy and unreliable Many engineers try to modify communication parameters repeatedly, such as

Introduction When a process control system becomes unstable, many engineers immediately focus on PID tuning. Adjusting proportional gain, integral time, or derivative settings is often considered the first solution. However, in real industrial applications, not every control problem is caused by incorrect PID parameters. A control loop is a complete system consisting of: Controller (PID)

In steel structures, bridges, equipment installation, and other engineering projects, high-strength bolts are often black or dark gray. Because this appearance is so common, many people naturally associate a black bolt with a high-strength bolt. That impression is understandable. High-strength bolts used in steel structures, particularly large hexagon-head high-strength bolt assemblies, are frequently supplied with