Thermal Flow Sensor TA10 ZG1b - U3090 pages

Thermal Flow Sensor TA10 ... ZG1b

Sensor TA10 ... ZG1b (left) for use with transducer U10a (above right) and hand-held flowtherm NT, HTA and HTA-Ex
(below right)

Measurable variable
• standard velocity Nv, standard
volume flow NV/t, mass flow
proportional
• norm:
temperature tn = +21 °C,
pressure pn = 1014 hPa
• temperature t
(hand-held flowtherm NT, HTA,
HTA-Ex)

Medium
• clean gases, gas mixtures:
air, nitrogen, methane, natural
gas, argon, carbon dioxide,
helium, sulphur hexafluoride,
landfill gas ...

Range and examples of
application
• mobile and stationary application
• compressed air and gas
Functional principle
• measurement of flow according to consumption and leakage measurements
the thermal measuring method
• measuring
(heat transfer method)
– laminar flows in clean rooms
Design
or machines
• probe
- in outgoing air, burner supply
air and draughts
- in climatic applications
Advantages
- in air in the rough vacuum
• high measuring dynamics Nv
range with pressures greater
(up to 1 : 1000)
than 200 hPa abs.
• small starting value: 0.2 m/s
• minimum reaction time
• low measuring uncertainty, even Particles, condensation,
at lowest flow velocities
humidty in the gas
• direct air/gas mass flow• Charges in the gas caused by
proportional measuring, largely
particles such as dust and fibres
irrespective of working pressure
do not affect the measurment,
and temperature
as long as abrasion and
• sensor has no moving parts
agglomeration do not occur on
• greater working temperature
the sensor
and pressure ranges
• relative gas humidty of less than
• high time yield
100 % does not affect the
• corrosion resistant
measuring uncertainty if the
working temperatures are less
• lower pressure drop due to small
than +40 °C
dimensions
U309_TA10ZG1b_DoP_e_120412

http://www.hoentzsch.com

Probe TA10 ... ZG1b
(Meas. A see Page 2)

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