This mass flow controller compensates for pressure
El-Flow Prestige (photo) is this company’s newest generation Mass Flow Meters/Controllers for gases. It can now be equipped with an onboard pressure sensor. In combination with the company’s 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. 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 behavior of the mass flow controller can easily be tuned onsite by adjusting the controller speed parameters. These settings can be changed using free software tools FlowTune or FlowPlot. FlowPlot can also be used for device diagnostics or alarm and counter settings. — Bronkhorst High-Tech B.V., Ruurlo, the Netherlands