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
SCFM (Standard CFM) and ACFM (Actual CFM) are commonly used units for measuring gas flow rate. For example, in the air compressor industry, they are used to measure airflow and air consumption. So what are the differences between them? How should they be converted? Both SCFM and ACFM are based on CFM. CFM is a … Read more
Thermal Mass Flow Meters and thermal mass flow controllers are suitable for most gaseous media. If a gas mass flow controller or thermal mass flow meter is factory-calibrated for one gas, but you want to switch to another, then a gas correction factor (GCF) is needed. What is Thermal Mass Flow Meter Correction Factor? The … Read more
Analog gas flow meters specifically refer to a type of flow meter that outputs analog signals. The main function of a flow meter is to measure volumetric flow rate or mass flow rate and convert it into an electrical signal output, facilitating flow monitoring and control. There are four types of flow meter signal outputs: … Read more