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Should Hydrogen Chloride (HCl) Gas be Classified as a Toxic Gas for Monitoring?

Instrumentation /

Hydrogen chloride (HCl) gas is classified under “acute toxicity – inhalation, category 3*” according to national standards. However, in practical terms, it is “not recommended” to set it up as a toxic gas for monitoring. Why is it that hydrogen chloride in its gas form is treated differently from its liquid form, like hydrochloric acid […]

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Why Is Oil Needed in Pressure Sensors?

Pressure Transmitter /

Pressure sensors use pressure-sensitive chips (such as piezoresistive silicon membranes) to detect pressure changes. If the sensor comes into direct contact with corrosive media, the silicon membrane may be damaged, affecting performance and reducing the sensor’s lifespan. Therefore, protective packaging is required to safeguard the pressure-sensitive chip while still allowing the pressure to be transmitted

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Understanding the Capacitive Smart Liquid Level Meter: A Reliable Solution for Industrial Applications

Level meter /

In various industrial sectors, accurate liquid level measurement is essential for efficient process control and safety. Among the many measurement devices available, the Capacitive Smart Liquid Level Meter stands out as a highly reliable, durable, and precise solution. Whether in the petroleum, chemical, pharmaceutical, or food industries, this device provides exceptional performance across a range

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Proper Use of Ethylene Glycol Antifreeze in Instrument Isolation Chambers

Tank /

When filling an instrument isolation chamber with ethylene glycol antifreeze, it is crucial to consider whether the antifreeze needs to be diluted with water. The decision largely depends on the type of antifreeze used, the environmental conditions, and the specifications of the equipment. Below is a detailed guide to help ensure optimal performance and protection.

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Principle and Installation of Segmental Orifice Flowmeter

Flow meter /

In the field of industrial flow measurement, differential pressure flowmeters are widely used due to their simple structure and durability. Among them, the segmental orifice flowmeter, as a special throttling device, shows unique advantages when dealing with dirty media containing bubbles, solid particles, or easily crystallizable substances. This article delves into the working principle, advantages,

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Building a Strong Foundation for Instrumentation Practice: Understanding Key Industrial Safety Concepts

Instrumentation /

In the world of instrumentation, theoretical knowledge is like the wrench in your toolkit — it may seem insignificant, but when it fails, it can bring everything to a halt! Whether you’re preparing for an entry-level certification or simply aiming to strengthen your foundational knowledge for daily operations, the concepts of circuit diagrams, sensor principles,

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Difference Between Reed Switch Level Sensors and Magnetostrictive Level Sensors

Level meter /

Reed switch level sensors and magnetostrictive level sensors are two common technologies used for liquid level measurement. These two sensors differ in their operating principles, applications, and performance characteristics. Below is a comparison of the two. 1. Operating Principle Reed Switch Level Sensors: Reed switch level sensors operate based on the interaction between a reed

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Steam Pipeline Water Hammer: 80% of Accidents Are Caused by These Common Mistakes

Instrumentation /

In the field, many operators have experienced this moment: despite following procedures, the moment the steam valve is opened, a dull “bang” is heard from the pipeline, the steel pipes shake, and white steam rises from the flanges… This is a classic case of steam pipeline water hammer. If not addressed immediately, it can cause

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What is the Difference Between Sensors and Transmitters?

Transmitter /

In modern industrial automation systems, “sensors” and “transmitters” are ubiquitous. They act as the sensory and nervous systems of automation: one is responsible for “sensing the world,” while the other transmits the information. Though they often work together, their functions and principles differ significantly. Today, let’s discuss the key differences between sensors and transmitters. 1.

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