Flowmeter: Low-flow, high accuracy magnetic meters

Precision measurements of low liquid flow rates can be a challenge, which often demands expensive pieces of instrumentation. FTI (Flow Technology, Inc.) has announced a new series of small bore magnetic flowmeters, which the company says represents the state-of-the-art for low flow measurements.

The new extended linearity (EL) 500 series of electromagnetic flow meters is available in line sizes from 1/8 to 3/4 inch, and uses a unique electromagnetic field profile that FTI says ensures accuracy not only in turbulent flow, but also during the transitional and laminar flow regimes.

These compact meters provide extended linearity and a wide measurement range of up to 1000:1 without the aid of linearization software. The EL 500 has a bi-directional flow capability with no moving parts and no pressure drop. They cover a temperature range -4 to 320° F.

Electronics available for the EL 500 series consist of a base transmitter with optional panel mounted display, as well as a multiple output converter with integral display. The electronics package can be mounted directly on the flow meter or remotely. When the electronics are remotely mounted the entire flow meter meets IP 68 suitable for permanent immersion in water up to a depth of 1.5 meters. A batching capability is also provided with MC 308C electronics.

—Edited by Peter Welander, process industries editor, PWelander@cfemedia.com , Control Engineering Weekly News

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