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HD48… Series – Active Temperature-Humidity Transmitters

Brand: Delta OHM S.R.L.

HD48 transmitters are designed for temperature and humidity control in conditioning and ventilation applications (HVAC/BEMS) in the following sectors: pharmacy, museums, clean rooms, ventilation ducts, industrial and civil sectors, crowded places, canteens, auditoria, gyms, high-density farms, greenhouses, etc.

The models of the HD48.. series are active transmitters and accept both direct and 24Vac alternating power supply; they have standard current (4…20mA) or voltage (0…10V) outputs, or a serial RS485 output*, depending on the model.
Available models:
  1. horizontal probe for duct mounting (TO),
  2. vertical probe for wall mounting (TV),
  3. probe with 2 or 5 m cable (TC),
  4. fixed contact Pt100 probe for solar panel (TFP)

For the TO and TC versions, two probe temperature ranges are possible: standard -20…+80 °C and extended -40…+150 °C (option E). Temperature range of the thin film 1/3 DIN Pt100 probe for solar panel: -40…+85 °C.

Also available with LCD display (option L). Electronics working temperature: -20…+60 °C.

Specifications

Power Supply

  • 18…40 Vdc or 24 Vac ± 10 %
  • 12…30 Vdc for Modbus output

Consumption

  • - 4 mA @ 24 V (models with voltage output)
  • - 4 mA @ 24 V with open output, 20 mA @ 24 V with 12 mA output (models with current output)
  • - 2 mA @ 24 V models with serial RS-485 output

Electrical Connections

  • Screw type terminal block, max. 1,5 mm2, M16 cable gland for input cable

Standard Filter

  • PBT and 10 μm stainless steel grid protection (P8), 20 μm PTFE (P7) only for extended range

TV Probe Working Temperature

  • -20…+80° C

…TO,…TC Probes Working Temperature

  • -20…+80° C

Electronics Working Temperature

  • -20…+60° C

Storage Temperature

  • -20…+80° C

Electronics Protection Class

  • IP66

Materials

  • ABS, polycarbonate

Weight

  • from approx. 120 gr. (TV) to approx. 900 gr. (TC2.10)

Case Dimensions

  • 80 x 84 x 44 (length x width x height)

Documentation

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