Gas flow controller

Friday, 14 May, 2004 | Supplied by:

Burkert has launched a range of mass flow controllers and meters for a wide range of gaseous applications. The range incorporates pulsewidth modulated solenoid valves and a sensor technology called CMOSens.

Gas flows from as low as 20 mL/min up to a maximum of 1500 L/min can be measured.

For the low flows, the units use a bypass measurement systems. This technology involves measurement in a specially-formed flow channel containing a silicon chip with an etched diaphragm.

Higher flow units use main stream measurement, ensuring fast response times of less than 500 ms.

Standard features include: no flow conditioning; sensor diagnostics; automatic auto-tune function for optimal control and high accuracy; and maximum flow diagnostics.

The controllers are of modular construction, which enables a system to be readily tailored to meet specific requirements.

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