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
The Magnetic Float Level Gauge continuously measures the liquid level in a tank based on the principles of buoyancy and magnetic coupling. It indicates changes in liquid level by utilizing the influence of a magnet on nearby magnets; this mechanical structure is simple yet highly effective. Its simple structure provides fast and stable liquid level … Read more
Strain gauge pressure transmitters have good shock resistance and can withstand 100G vibration, making them more suitable for measuring large pressure ranges. They are used in pressure measurement and control in industrial equipment, water pressure testing, building water supply, and hydraulic power stations. What is Strain Gauge Pressure Transmitter? Strain gauge pressure transmitters are a … Read more
Powder/Dry Material Level Switches are devices used to detect when material reaches a preset level. When the material reaches or exceeds the set position, the level switch sends a signal, typically used to control the starting or stopping of equipment. They are widely used in silos, hoppers, storage tanks, and other locations for simple on/off … Read more