Mass flow control

11/01/1996

Mass flow control

Model 810 Gas-Trak measures and controls gas mass flow at low cost and is suitable as a replacement for volumetric flow measurement devices that are sensitive to changes in operating temperature and pressure. The instrument`s integrated proportional control valve gives precise, one-step control of critical gas flows. An on-board display and set point control eliminate the need for separate power supply and readout electronics. A straight, large-diameter sensor tube prevents clogging and contamination, and the stable, fast response valve provides ? 1.5% of full scale control accuracy. Gas-Trak is available for flow rates up to 50 standard l/min. Sierra Instruments Inc., Monterey, CA; ph 800/866-0200 or 408/373-0200, fax 408/373-4402.