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Application of High Pressure Mass Flowmeters in Core Experiments - Focus on Microfluidic Control Technology

Bronkhorst high-pressure mass flowmeter has a pressure resistance up to 40MPa and is widely used in high-pressure applications in petrochemical industry.
BRONKHORST high-pressure mass flow controllers have a modular structure for PC boards designed specifically for 'laboratory applications'. The control valve can be integral or separate. Measurable and controllable gas flow range:
Zui low flow up to 0,014...0,7 mln/min
Zui high flow rate up to 8...1670 ln/min
【Detailed description】
I. Introduction to BRONKHORST High Pressure Mass Flow Controller
The control valve design of this mass flow controller is different from that of other competing products. It is a truly modular structure, and the user can replace it at the installation site without any adjustment. The standard universal valve is a normally closed valve with a Kv value of up to 1.5. It can also provide normally open valve products according to customer requirements.
For high (differential) pressure applications, the patented structure of the EL-FLOW® program product enables it to handle high flow differential pressures and/or high pressure differentials under different pressure conditions. Zui is up to 400 bar. The product is * in the same product market.
Number = standard
All models of the EL-FLOW Select series are equipped with a digital integrated circuit board and have 'self-diagnosis', 'alarm', and 'counting' functions; in addition, they also have 'digital communications' and 'adjustable' Remote control' settings. Thanks to the 'multi-bus' design philosophy, these digital devices have great flexibility, allowing these devices to be assembled with the following on-board interfaces of any communication protocol: EtherCAT®, DeviceNetTM, Profibus-DP®, Modbus - Protocols such as RTU or FLOW-BUS.
Optional multi-media/multi-range
The EL-FLOW Select device can be equipped with the optional multi media/multi range function. This optionality provides the user with great flexibility, especially when selecting the flow range and gas type, so that it maintains high accuracy and a larger turndown ratio when measuring or controlling. Because of the existence of this function, the user can reset the measurement range of the meter at the product installation site, thereby saving time and cost. For the convenience of users, the company also specially designed an easy-to-operate and use software, named 'Flow Tune', which is specially used to activate the adjustment of the 'multi media'/'multi-range' optional function or to change the instrument configuration. And design.
Second, the characteristics of high pressure mass flow controller
High Accuracy (Standard 0,5% Rd + 0,1% FS)
Zui in digital mode has a large number of processes up to 1:187,5
Sensitive (zui is 200 msec) with good repeatability
Optional 'Multi-Gas '/' Multiple Ranges': Free programmable flow range and gas type
Pressure rating 64/100bar (optional multi-media/multi-range function up to 10bar)
Optional high voltage version
Analog I/O-signal, RS232-connect; Optional on-board bus interface
All surfaces are electrochemically polished
Compact, modular structure
Optional metal seal and/or upper and lower connection structure
Third, the application of high pressure mass flow controller
Analysis/environmental protection equipment
Monitoring of gas flow in the food, chemical and petrochemical industries
Gas consumption monitoring and accounting
Detection of gas leaks through appropriate objects
Semiconductor Manufacturing
Surface treatment device
Fourth, high pressure mass flow controller measurement range

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