Vortex Flow Sensor VA40 ... ZG7 - U3070 pages
Vortex Flow Sensor VA40 ... ZG7
nnnnHE hontzsch
nnnnflow measuring technology
nnnnVortex flow sensor VA40 ... ZG7 with
nnnnintegrated transducer UVA, capable of parameterization
nnnnMeasurable variable
nnnnactual flow velocity v [m/s] and
nnnnactual flow rate [m3/h] in
nnnnair/gases
nnnnconversion to standard
nnnnvelocity/standard volume flow
nnnnrate by input parameter working
nnnnpressure and temperature
nnnnMeasuring range
nnnn0.5 ... 40 m/s
nnnnFunctional principle
nnnnvortex meter for measuring
nnnnflow velocity, flow rate and
nnnnvolume
nnnnultrasonic measurement of
nnnnthe vortex shedding
nnnnKármán vortex street
nnnnDesign
nnnninsertion probe with probe guide
nnnnpiece und AS80 housing
nnnnMedium
nnnnprimarily single-phase gas
nnnnmixtures with air, nitrogen,
nnnnoxygen, methane, natural gas,
nnnnammonia, argon, carbon
nnnnmonoxide, superheated steam .
nnnnand biogas as dominant
nnnncomponent.
nnnnOther gases on request.
nnnnAdvantages
nnnnsmall starting value (0.5 m/s)
nnnnhigh measuring dynamics
nnnn(1 : 80)
nnnnno moving parts
nnnnhigh time yield
nnnncorrosion resistant
nnnnoperates largely irrespective of
nnnnthe gas composition
nnnnminor pressure drop
nnnnapplication in Ex-protection
nnnnCategory 3G and 3D (zone 2
nnnnand zone 22) permissible
nnnnRange and examples of
nnnnapplication
nnnnflow measurement, for example,
nnnnof air, outgoing air, sludge
nnnnactivation air, engine intake air,
nnnnnatural gas, exhaust gas, pro-
nnnncess gas, biogas, vehicle engine
nnnnexhaust gas, flare gas
nnnnVortex Flow Sensor VA40
nnnnParticles, humidity and
nnnncondensation
nnnncharges in the gas caused by
nnnnparticles such as dust and
nnnnfibres do not affect the
nnnnmeasurement, as long as
nnnnabrasion and agglomeration do
nnnnnot occur on the sensor
nnnnrelative gas humidity of less
nnnnthan 100 % does not affect the
nnnnmeasuring uncertainty
nnnnslight condensation adsorption
nnnnon the sensor does not affect
nnnnthe measurement
nnnnU307 VA ZG7 DoP e 120523
nnnnhttp : //www. hoe ntzsch. co m
nnnn1/4
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