Vortex Flowmeter
Endress+Hauser Vortex Flowmeter 72W
Measuring principle:
Vortex meters work on the principle of the Kármán vortex street. When fluid flows past a bluff body, vortices
are alternately formed on both sides with opposite directions of rotation.
These vortices each generate a local
low pressure. The pressure fluctuations are recorded by the sensor and converted to electrical pulses. The
vortices develop very regularly within the permitted application limits of the device. Therefore, the frequency
of vortex shedding is proportional to the volume flow.
Endress+Hauser Vortex Flowmeter 72W
Maximum range of applications thanks to:
• Fluid temperature range from –200 to +400 °C
(–328 to +752 °F)
• Pressure ratings up to PN 250/Class 1500
• Sensor with integrated (optional) diameter reduction
by one line size (R Style) or two line sizes (S Style)
• Dualsens version (optional) for redundant
measurements with two sensors and electronics
Approvals for:
• ATEX, FM, CSA, TIIS, NEPSI, IEC
• HART, PROFIBUS PA, FOUNDATION Fieldbus
• Pressure Equipment Directive, SIL 2
Your benefits
The robust Prowirl sensor, tried and tested in over
200 000 applications, offers:
• High resistance to vibrations, temperature shocks,
contaminated fluids and water hammer
• No maintenance, no moving parts, no zero-point drift
(“lifetime” calibration)
• Software initial settings save time and costs
Additional possibilities:
• Complete saturated steam or liquid-mass measuring
point in one single device
• Calculation of the mass flow from the measured
variables volume flow and temperature in the
integrated flow computer
• External pressure value read-in for superheated steam
and gas applications
• External temperature value read-in for delta heat
measurement