The family of transmitters series HD29… are employed in the control of air speed in the air conditioning and ventilation (HVAC / BEMS) in the pharmaceutical, museum, clean rooms, ventilation ducts, industrial sectors and households, crowded places, cafeterias, auditoriums, gymnasiums or on farms with large numbers of animals.
The sensors in combination with an accurate electronics guarantee precise and reliable measurements in the time.
The sensor for the air speed is thin film, the probe sheath is AISI304, the filter relative humidity of 20μ wire mesh, materials that allow the use in hostile areas.
There are two possible installations: in the TO version, the horizontal probe is joined to the electronics enclosure while in the TC version the probe is conconnected to the electronics through a cable. In the TO version, the duct probe is fixed to the electronics enclosure and it is available in three different lengths. To fix the probe to the duct, you can use, for example, the HD9008.31 flange, a 3/8” universal biconical connection or a PG16 metal cable gland (∅10…14mm). In the TC version, the probe together with the sensors is equipped with a cable which can be 2, 5 or 10 meters long.
The probes are available in different lengths.
Possibilities of the several models:
– Air speed measurement with the HD2903T… and HD29V3T… series – analog output 4-20mA or 0-10VDC
– Air speed and Temperature measurement with the HD2937T… and HD29V37T… series – analog outputs 4-20mA or 0-10 Vdc
– Air speed, Humidity and Temperature measurement with the HD29371… series and HD29V371T – analog outputs 4-20mA or 0-10 Vdc
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