EL-FLOW® Prestige, the newest generation of Bronkhorst Mass Flow Meters/Controllers for gases, can now be equipped with an on-board pressure sensor. In combination with the “Differential Temperature Balancing” sensor technology and an incorporated gas database with physical properties, the instrument automatically compensates for inlet pressure variations. As a result, the accuracy and control stability will not be affected by these pressure changes. Next to an improved yield of the customer’s process, additional components for line pressure control will no longer be required.

The Multi Gas / Multi Range functionality of the EL-FLOW® Prestige enables the user to select any of the installed gases and to adjust the measuring range within the boundaries of the device. Also the dynamic behaviour of the mass flow controller can easily be tuned on site, by adjusting the controller speed parameters. These settings can be changed using our free software tools FlowTune™ or FlowPlot™. The last mentioned tool can also be used for device diagnostics or alarm and counter settings.

Features

• High accuracy (standard 0,5% Rd plus 0,1% FS)
• Rangeability in digital mode up to 1:150
• Extremely fast and dynamic response
• Multi-Gas / Multi-Range functionality (25 selectable gases; scalable between 40%-120% or ordered capacity (FS value)
• Pressure ratings 10 / 64 / 100 bar
• Analog I/O-signals, RS232-connection; optional on-board fieldbus interface
• Great variety of customized I/O options
• User configurable control characteristics
• Robust metal housing
• Safety in compliance with IEC 61010-1

Applications

• Analytical/environmental equipment
• Gas flow monitoring in food, chemical and petrochemical industries
• Gas consumption measurement in gas distribution systems for internal accounting purposes
• Detection of gas leakage through objects
• Semiconductor manufacturing
• Surface treatment installations