Vortex Flow Sensor VA40 ... ZG7 - U3070 pages

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Vortex Flow Sensor VA40 ... ZG7

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HE hontzsch

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flow measuring technology

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Vortex flow sensor VA40 ... ZG7 with

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integrated transducer UVA, capable of parameterization

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Measurable variable

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actual flow velocity v [m/s] and

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actual flow rate [m3/h] in

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air/gases

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conversion to standard

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velocity/standard volume flow

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rate by input parameter working

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pressure and temperature

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Measuring range

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0.5 ... 40 m/s

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Functional principle

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vortex meter for measuring

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flow velocity, flow rate and

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volume

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ultrasonic measurement of

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the vortex shedding

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Kármán vortex street

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Design

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insertion probe with probe guide

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piece und AS80 housing

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Medium

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primarily single-phase gas

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mixtures with air, nitrogen,

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oxygen, methane, natural gas,

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ammonia, argon, carbon

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monoxide, superheated steam .

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and biogas as dominant

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component.

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Other gases on request.

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Advantages

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small starting value (0.5 m/s)

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high measuring dynamics

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(1 : 80)

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no moving parts

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high time yield

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corrosion resistant

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operates largely irrespective of

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the gas composition

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minor pressure drop

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application in Ex-protection

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Category 3G and 3D (zone 2

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and zone 22) permissible

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Range and examples of

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application

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flow measurement, for example,

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of air, outgoing air, sludge

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activation air, engine intake air,

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natural gas, exhaust gas, pro-

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cess gas, biogas, vehicle engine

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exhaust gas, flare gas

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Vortex Flow Sensor VA40

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Particles, humidity and

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condensation

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charges in the gas caused by

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particles such as dust and

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fibres do not affect the

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measurement, as long as

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abrasion and agglomeration do

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not occur on the sensor

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relative gas humidity of less

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than 100 % does not affect the

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measuring uncertainty

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slight condensation adsorption

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on the sensor does not affect

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the measurement

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U307 VA ZG7 DoP e 120523

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http : //www. hoe ntzsch. co m

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