KOBOLD Instruments, Inc. DVZ - Vortex Flowmeter and Switch

Product Features Vortex Shedding Technology with No Moving Parts Ryton Body with Ni-Plated Brass or SS Fittings Frequency, Current or Switch Outputs Available Fixed or Rotatable Connections Economically Priced The KOBOLD DVZ series Vortex flowmeters are the perfect solution for applications where reliability and low cost are desired. The DVZ senses the flowrate of low-viscosity liquids using the Vortex shedding principle. A small obstruction (bluff body) is placed in the flow path. As fluid flows across the bluff body, small, low-pressure areas (vortices) are created just behind the bluff body. The position of the vortices alternate to either side of the bluff body in a uniform pattern. The frequency of the vortices shift is directly proportional to flowrate. This shift in the vortices is detected by a very sensitive pressure sensor and is processed as a scaled flowrate signal. The DVZ series Vortex flowmeter has no moving parts and is thus very reliable. The DVZ series is available with a Ryton body and a choice of either nickel-plated brass or 316 stainless steel fittings. The bluff body is available in either the standard Ryton or optional ceramic material, which has excellent long-term wear characteristics even under harsh operating conditions. Available outputs include Pulse Frequency, 4-20 mA, adjustable relay, Compact Electronics with LED digital flowrate display, 4-20 mA output and adjustable transistor switch options.