Koester Mass Flow Meters: Precision Measurement and Control in Industrial Applications

2026-04-30

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In industrial precision manufacturing, the accurate measurement of fluid mass flow rate and density is a critical prerequisite for ensuring product yield, batch-to-batch consistency, and process safety. Coriolis mass flow controllers, which operate on the Coriolis principle, are inherently immune to variations in fluid temperature, pressure, density, and viscosity, thereby completely overcoming the operational limitations inherent in conventional volumetric flow meters. As such, they are increasingly becoming an indispensable core measurement and control solution in the high-end industrial automation sector.

The ACU20FE series Coriolis mass flow controllers are benchmark-level flow measurement and control instruments designed for high-end precision manufacturing applications, leveraging proprietary high-precision sensing technology and fully digital signal-processing algorithms.

Korean mass flow meters offer numerous significant advantages:

It boasts high measurement accuracy and can directly measure the mass flow rate of fluids, unaffected by variations in fluid temperature, pressure, density, viscosity, and other physical properties. This enables it to deliver accurate and reliable measurement results even in a wide range of complex industrial environments. It also exhibits excellent repeatability, with highly consistent measurement outcomes each time, thereby ensuring process stability and consistent product quality. Furthermore, it can simultaneously measure fluid density, providing additional data for quality control and material blending during production.

Leveraging robust technological capabilities, the ACU20FE series Coriolis mass flow controllers have been successfully deployed at scale across multiple high-end industrial sectors, delivering tailored, precision flow measurement and control solutions for diverse application scenarios.

In the semiconductor and microelectronics industries, the equipment is capable of precisely delivering and blending photoresists, developers, and specialty electronic chemicals, as well as accurately controlling flow rates in wet-process and thin-film deposition operations. This thoroughly addresses the limitations of conventional flow meters—namely their susceptibility to variations in fluid properties and operating conditions—thereby ensuring the stability of nanoscale manufacturing processes and steadily boosting chip yield.
In the new-energy industry, lithium-ion battery manufacturing equipment is used for precise material blending and proportioning in the cathode and anode slurry processes, as well as for high-precision electrolyte filling and metering, thereby ensuring cell consistency and safety.
In the hydrogen energy sector, it can be used for oxygen/oxygen flow measurement in water electrolysis-based hydrogen production, trade settlement at hydrogen refueling stations, and precise control of hydrogen dispensers, thereby comprehensively supporting technological upgrades and safety improvements in the new-energy industry.
In the oil and gas industry, Coriolis mass flow meters are used to measure the flow rates of fluids such as crude oil and natural gas, providing an accurate basis for trade settlement.


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ACU20FD Normally Open Valve Series


The ACU20FD digital mass flow meter consists of a mass flow sensor, a laminar flow splitter, a flow-control regulating valve, and an amplification and control circuit. It features digital signal input and output, short warm-up time, minimal zero drift, and high reliability.

ACU20PH Series


The ACU20PH series comes standard with a piezoelectric diaphragm pressure sensor and a digital circuit board, delivering high-precision, stable, and reliable pressure measurement and control. This basic digital PC board incorporates all the essential functions required for measurement and control. In addition to the standard RS485 output signal, the ACU20PH also provides analog I/O signals.

ACU10FA


The ACU10FA analog-type mass flow controller features fast response and high precision. It offers a wide control range, with a flow rate capability spanning from 5 SCCM to 30 SLM, and can accurately measure and regulate flows as low as 1 SCCM—making it ideal for controlling even the tiniest gas flows.

ACU10FD Series


The ACU10FD digital mass flow controller consists of a mass flow sensor, laminar flow splitter, flow-control regulating valve, and amplification control circuit. It features digital signal input and output, short warm-up time, minimal zero drift, and high reliability.

ACU10FDR


The ACU10FDR low-pressure-drop gas mass flow controller is equipped with a proprietary high-flow electromagnetic valve, making it ideal for controlling mass flow even when system pressure is nearly unavailable. Its minimal pressure differential ensures the least possible impact on the system, enabling precise flow control under near-atmospheric conditions while significantly reducing system response time. We can customize the valve and PID control features based on your specific application parameters, guaranteeing fast, stable performance with minimized pressure loss.