HD29… Series Active Air Speed Transmitters

Brand: Delta OHM S.R.L.

HD29… Series Active Air Speed Transmitters

Brand: Delta OHM S.R.L.
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 over 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 connected 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 flanges, a 3/8” universal biconical connection or the PG16 metal cable glands (Ø10…14 mm).

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 three different lengths.

Specifications

Air Speed Measuring Range

  • Range 1 = 0.05…1 m/s
  • Range 2 = 0.1…2 m/s
  • Range 3 = 0.20…10 m/s
  • Range 4 = 0.20…20 m/s

Air Speed Accuracy Range

  • Range 3: ± (0.5 m/s+3 % of the measure)
  • Range 1: ± (0.1 m/s+3 % of the measure)
  • Range 2: ± (0.15 m/s+3 % of the measure)
  • Range 4: ± (0.7 m/s+3 % of the measure)

Temperature Measuring Range

  • -10° to +60° C

Temperature Accuracy

  • ± 0.3° C

Relative Humidity Measuring Range

  • 0 to 100 %RH

Relative Humidity Accuracy

  • ± (1.5+1.5 % of the displayed value) %RH in the remaining temperature range
  • ± 1.5 %RH (10 to 90 %RH) ± 2.0 % RH (in the remaining range) for T= 15 to 35° C

Relative Humidity Output Range

  • 0 to 100 %RH

Output (According to the Models)

  • 4-20 mA 0 to 10 Vdc

Power Supply

  • 18 to 40 Vdc or 12 to 24 Vac ± 10 %

Response Time

  • 0.2 s
  • 2.0 s

Operating Temperature Electronics Probe

  • 0° to +60° C
  • -30° to +100° C

Compensation Temperature

  • 0° to +80° C

Storage Temperature

  • -10° to +70° C

Electronics IP

  • IP67

Sensor Working Conditions

  • Clean air, RH < 80 %

Case Dimensions

  • 80 x 84 x 44 mm

Documentation

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