A Flow Meter Reading Is Not Always the Real Consumption A common misunderstanding in industrial flow measurement is that the value displayed on a flow meter always represents the actual amount of fluid consumed. However, this is not always true. In real industrial applications, temperature and pressure conditions are constantly changing. These changes directly affect […]
When selecting cables for industrial applications, many engineers encounter the same question: Why do some cables have shielding while others do not? Is a shielded cable always better? Can unshielded cables be used safely? The answer is not simply about price or cable quality. Choosing the wrong cable can lead to signal fluctuations, communication failures,
Shielded vs. Unshielded Cables: What’s the Difference and How to Choose the Right One? Read More »
The flowmeter may look the same, but the logic behind selecting one has changed dramatically. Ten years ago, if you walked into the instrumentation room of a chemical plant, you would see rows of orifice plates, vortex flowmeters, and variable area meters. Engineers carried thick selection manuals, turning to page 387 and checking boxes one
The Flowmeter Is Still There — So What Changed Inside the Same Pipeline? Read More »
Electromagnetic flow meters are widely used in the chemical industry because they provide reliable measurement with no moving parts and minimal pressure loss. Based on Faraday’s Law of Electromagnetic Induction, they are suitable only for conductive liquids and slurries. For chemical applications, proper selection depends on five key factors: Medium conductivity Liner material compatibility Electrode
How to Select an Electromagnetic Flow Meter for Chemical Applications Read More »
1. Why Do Storage Tanks Still Inhale Air Even with Nitrogen Blanketing? Many people assume nitrogen blanketing simply means “filling a tank with nitrogen gas.” This is a common misunderstanding. In reality, nitrogen blanketing is not about whether nitrogen is present—it is about controlling three critical factors in the tank vapor space: Oxygen concentration Slight
Nitrogen Blanketing in Storage Tanks: Why It Fails and How to Optimize It Read More »
Many Installations Are Wrong — And It Can Affect Accuracy or Even Damage the Instrument In refineries, chemical plants, and storage terminals, remote seal differential pressure transmitters are widely used for level measurement in pressurized, vacuum, high-temperature, or corrosive applications. However, one installation detail is often overlooked: Where should the transmitter body be mounted relative
How High Should a Remote Seal DP Transmitter Be Installed? Read More »
Pressure transmitters are widely used in industrial process control systems to measure pressure, differential pressure, and level. In real field applications, incorrect readings, unstable signals, or complete signal failure are common issues. These problems are often not caused by the transmitter itself, but by installation, wiring, process conditions, or maintenance practices. This guide summarizes the
Pressure Transmitter Troubleshooting Guide: Common Faults and Solutions (4–20mA Signal) Read More »
In industrial control rooms, alarms are often more critical than operators realize. What causes confusion is not the alarm itself — but not knowing how severe it is. L, H, LL, HH… these four simple letters define completely different levels of process risk. 1. Alarm Levels Are Not the Same Thing In DCS and process
How to Set L, H, LL, HH Alarms in DCS Systems? Read More »
In power distribution, lightning protection, and industrial automation systems, SPD (Surge Protective Device) and surge arresters are often discussed together. Because both are used to limit overvoltage caused by lightning and switching events, many people assume they are the same device.However, they differ significantly in application level, system voltage, and protection purpose. Misunderstanding these differences
SPD vs Surge Arrester: What’s the Difference? Read More »
1. Introduction Electromagnetic flowmeters are widely used in water treatment, chemical, and industrial applications due to their high accuracy and reliability. However, in real field applications, users may occasionally encounter alarms such as: Empty Pipe Detection (EPD) Excitation Fault (EXC / EXT ERR) Unstable readings or signal loss This article shares a real field case
