AALBORG®'s VORTEX METERS for steam, liquid, and gas applications have no moving parts to wear or fail. In-line (WAFER or FLANGE mounting) and INSERTION (fixed or retractable) models need less maintenance. Unique dual signal processing technology independently measures each vortex, filters out non-flow noise, and increases accuracy and turndown.
PRINCIPLES OF OPERATION:
Vortices are created when a fluid passes around a bluff
body as shown below. Vortices are alternately shed on each
side of the body, 180 degrees out of phase to each other,
resulting in an oscillating pressure gradient. As flow increases
the frequency of vortices increases in proportion to the
increased flow thereby creating a linear relationship.
BENEFITS:
RELIABLE: Electronics can be remote mounted.
No fluid-to-sensor contact.
No holes to clog.
WIDE RANGEABILITY: High flow turndown ratio up to 80:1.
HIGH ACCURACY: ±0.5% of rate.
INCREASED NOISE CANCELLATION: Non-flow noise filtered out.
