Low-flow Coriolis Control

June 1, 2004
A new version of the Brooks Instrument Quantim family of products is said by the vendor to be the lowest flow Coriolis meter and controller available today.

A modular hardware platform using improved sensing tube geometries and optical sensing techniques now enables Quantim to handle both liquids and gases. This platform allows measurement and control of flows ranging from 1 gram per hour to 28,000 g/hr, with better overall accuracy at the low end of the flow range thanks to improved zero-stability. The flow controller features a new valve that is more forgiving of variations in line pressures and, due to a larger orifice, also reduces the chance of clogging. The valve uses an all-metal valve seat, thus eliminating potential control issues associated with elastomer valve seat compatibility and swelling.

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