Thermal Flow Sensor TA10 ZG2b - U3140 pages
Thermal Flow Sensor TAIO ... ZG2b
nnnnhontzsch
nnnnflow measuring technology
nnnnSensor TAIO ... ZG2b with integrated transducer UlOa
nnnnTAIO ... ZG2b (Meas. A Page 2)
nnnnMeasurable variable
nnnnstandard velocity Nv, standard
nnnnvolume flow NV/t,
nnnnmass flow proportional
nnnnnorm:
nnnntemperature tn = +21 °C,
nnnnpressure pn = 1014 hPa
nnnnFunctional principle
nnnnmeasurement of flow according
nnnnto heat transfer method
nnnntemperature dependence of
nnnnmeasurement compensated by
nnnncomplete temperature operating
nnnnrange
nnnnDesign
nnnnProbe with integrated transducer
nnnnGases
nnnnpure gases, gas mixtures:
nnnnair, nitrogen, methane, natural
nnnngas, argon, carbon dioxide,
nnnnhelium, sulphur hexafluoride,
nnnnlandfill gas ...
nnnna calibration with a multitude of
nnnngases or gas mixtures can be
nnnncarried out to achieve the
nnnnslightest measuring uncertainty
nnnnAdvantages
nnnnhigh measuring dynamics Nv
nnnn(up to 1 : 1000)
nnnnmeasuring range from 0.2 m/s
nnnnlow measuring uncertainty, even
nnnnat lowest flow velocities
nnnndirect air/gas mass flow-
nnnnproportional measuring.
nnnnAdditional measuring of
nnnnpressure and temperature not
nnnnnecessary
nnnnsensor has no moving parts
nnnnstainless steel sensor housing
nnnngreater working temperature
nnnnand pressure ranges
nnnnlow installation costs
nnnnlow pressure drop due to small
nnnndimensions
nnnnlong life
nnnnsterilisable (sensor material-
nnnnresistance allowing)
nnnnoptional, double-spaced LCD:
nnnnvolume flow / counter
nnnnparameterization and optimal
nnnnintegration with PC software
nnnnRange and examples of
nnnnapplication
nnnnmeasuring
nnnn- air velocity
nnnn- compressed air and gas
nnnnconsumption, leakage
nnnn- laminar flows in clean rooms
nnnnor machines
nnnn- in outgoing air, burner supply
nnnnair and draughts
nnnn- in climatic applications
nnnn- in air in rough vacuum range
nnnnwith pressures greater than
nnnn200 hPa abs.
nnnnParticles, condensation,
nnnnhumidity in the gas
nnnncharges in the gas caused by
nnnnparticles such as dust and fibres
nnnndo not affect the measurement,
nnnnas long as abrasion and agglo-
nnnnmeration do not occur on the
nnnnsensor
nnnndeviations in values as a result
nnnnof variable air humidity in nor-
nnnnmal atmospheric conditions are
nnnncovered by the measuring
nnnnuncertainty specifications
nnnnU314_TA10ZG2b_DoP_e_120413 http://www.hoentzsch.com 1/6
"