Flowmetering Vortex flowmeters 3
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TI-P736-01 EMM Issue 6
VLM30/VLM30 Food+ In-line Vortex Flowmeter
Description Vortex flowmeters measure the flow of liquid, gas and steam by detecting the frequency at which vortices are alternately shed from a bluff body. According to proven laws of physics, the frequency at which the vortices are alternately shed is directly proportional to the flow velocity. In-line vortex flowmeters measure flow by detecting the local velocity at a strategically located position within the pipe. The VLM30 detects the frequency at which vortices are alternately shed from the bluff body located within the sensor head. The VLM30 uses the local velocity, along with other parameters, such as fluid type, pipe size and Reynolds number to calculate the average pipe velocity, and consequently, the volumetric flowrate. The VLM30 In-line Vortex Flowmeter utilises three primary sensing elements to measure the mass flowrate of steam, liquids and gases: - Vortex shedding velocity sensor - Internal RTD temperature sensor (std) or external temperature transmitter - External pressure transducer (supplied separately)
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VLM30 range The VLM30-S vortex flowmeter for saturated steam, liquid and gas applications, with graphical display, optional binary output and integrated temperature measurement. The VLM30-E vortex flowmeter for saturated steam, superheated steam, liquid and gas applications, with integrated binary output, temperature compensation, flow computer and energy calculation functionality. The VLM30-E provides the possibility to connect external temperature, pressure and density transmitters. Gas analyser outputs may also be integrated for enhanced measurements.
Compliance and approvals: - EMC Directive IEC61326-1 2020 - PED Directive EN 12516-2:2014+A1:2021
- CRN: 0F24350.5C (CA) - Food+ : EC1935.2004 - Food+ : FDA
TI-P736-01 EMM Issue 6
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VLM30/VLM30 Food+ In-line Vortex Flowmeter
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