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In specialized applications such as power generation, high-temperature reactors, and metallurgical smelting, process pressure measurement often faces extreme conditions of “high temperature” + “differential pressure,” with the temperature of the measured medium reaching 300℃~600℃. Differential pressure measurement of high-temperature media can be used in important processes such as flow calculation, liquid level monitoring, and differential … Read more

An inline pressure transducer is a compact pressure transmitter that screws directly onto the pipeline via a single threaded interface. The sensitive diaphragm is in close contact with the medium, without manifolds or remote transmission diaphragms. This form factor is most commonly found in hydraulic systems, compressed air mains, cooling water circuits, HPLC process lines, … Read more

Pressure transmitter for level measurement is a relatively inexpensive and stable solution. Proper selection and configuration of pressure transmitters can effectively save on measurement costs. Pressure transmitters for level measurement can be broadly categorized into two types: one for measuring liquid levels in pipes, and the other for measuring liquid levels in wells and rivers. … Read more

After a period of use, electromagnetic flow meters may experience a decrease in accuracy. Magnetic flow meter calibration eliminates systematic errors inherent in the instrument, ensuring the reliability of its measurement results. This meets the needs of process control, cost accounting, and trade settlement. Electromagnetic flow meters are suitable for measuring the flow rate of … Read more

Nitrogen Flow Controllers are devices specifically designed for measuring and controlling nitrogen flow. They not only measure the volumetric or mass flow rate of nitrogen, but crucially, they also control the flow rate. Generally, they are based on a nitrogen flow meter, with the addition of an automatic control valve and a closed-loop control system. … Read more

Measuring flow in large pipes with insertion type flow meters. If you need to measure the fluid flow of a larger pipe diameter, you are most likely to choose an insertion type flow meter. But what insertion type flow meter should you use? The market has insertion electromagnetic flowmeter, insertion vortex flowmeter, insertion ultrasonic flowmeter, … Read more

By Li Rui, Senior Process Engineer at Sino-Inst | Published 2026-03-24. If you’ve ever had an ultrasonic level sensor fail prematurely, there’s a good chance the probe material was wrong for the job. I’ve seen this happen more times than I’d like to admit — a perfectly good sensor, installed in a sulfuric acid tank, … Read more

When purchasing pressure transmitters or flow meters, the sales engineer will usually confirm with you what IP rating you need: IP65, IP67, or IP68? This explanation aims to help you understand the details of IP ratings. Next time you purchase electrical equipment, you’ll know which IP rating to choose. What is an IP rating? First, … Read more

What is Absolute Pressure Transmitter? Absolute pressure transmitters are sensors that measure pressure using absolute vacuum (0 bar) as a reference. They convert the sensed physical pressure value into a standardized electrical signal, such as 4-20 mA or 0-10 V, for processing by control systems or monitoring equipment. They are often called “industrial barometers” or … Read more

In gas flow measurement and control, it is crucial to distinguish between Normal Conditions and Standard Conditions. This is primarily because the volume of gas changes with temperature and pressure. Different standards will result in different measured gas values. This is somewhat similar to the difference between “SCFM (Standard CFM) and ACFM (Actual CFM)“. Characteristics … Read more