HD3817T / HD38V17T Series - Absolute Humidity Transmitters

Brand: Delta OHM S.R.L.

HD3817T / HD38V17T Series - Absolute Humidity Transmitters

Brand: Delta OHM S.R.L.
The HD3817T and HD38V17T are double absolute humidity and temperature active transmitters with 4…20mA current or 0…10Vdc voltage outputs, respectively.

Absolute humidity is the ratio between the mass of water vapour and the measured volume of air, and is expressed in g/m³.

The transmitters of the HD3817T family may be used in materials humidity control during a drying process.

When the materials are dried through heating or a hot air flow, the air absolute humidity increase is directly proportional to the quantity of water lost by the materials.

A control system measuring absolute humidity, can maintain a certain humidity level by injecting vapor or water spray in the environment, if needed.

Generally, these transmitters are employed in the chemical, textile, food industry, in the production and storage of paper, in the drying of wood, even with high temperatures and wide humidity excursions.

The type of sensor used is immune to most physical and chemical contaminants.

The maximum working temperature is 200°C: This makes these instruments particularly suitable to heavy industrial applications where the traditional capacitive sensor cannot be used.

The response time is fast, as well as the recovery time from saturation.

The maximum measurement ranges are: 0…130 g/m³ for absolute humidity and 0…200°C for temperature: the instruments come out of the factory with the 0…60 g/m³ and 0…200°C standard ranges.

The standard power supply is 24VAC. On request, 115VAC or 230VAC versions are available.

The probe is made of stainless steel and has a 20µm sintered bronze filter.

The case is in polycarbonate with an IP66 protection degree.

Specifications

Absolute Humidity Type of Sensor

  • Heat Conductivity with Double Combined NTC.

Absolute Humidity Sensor Protection

  • 20 µm Sintered Bronze Filter

Absolute Humidity Measurement Range

  • 0 to 130 g/m³ (0 to 100 % RH @60° C and 1013hPa)

Absolute Humidity Sensor Working Range

  • 0° C to 200° C

Absolute Humidity Accuracy

  • ± 3 g/m³ at 35 g/m³ and 40° C

Absolute Humidity Startup Stabilization Time

  • 120 seconds

Absolute Humidity Response Time

  • 60 seconds with standard filter for a 63 % variation of the final value

Absolute Humidity Repeatability

  • ± 5 %

Temperature Sensors Type

  • 4-Wire Pt100

Temperature Measurement Range

  • 0° to +200° C

Temperature Accuracy

  • 1 /3 DIN

Temperature Response Time

  • 0 seconds for a 63 % variation of the final value

Analog Outputs HD3817T

  • 4-20 mA, RL < 500 Ω

Analog Outputs HD38V17T

  • 0 to 10 Vdc, RL > 10kΩ

Power Supply Voltage

  • 24 Vac ± 10 % 50 to 60 Hz
  • On request, 115 Vac or 230 Vac
  • ± 10 % 50 to 60 Hz

Consumption

  • 4 VA typical

Temperature / Electronic Working Humidity

  • -10° C to +70° C / 5 to 90 % RH without condensation

Case Size

  • 120 x 80 x 55 mm

Protection Degree

  • IP66 probe excluded

Case Material

  • Polycarbonate

Probe Material

  • Stainless Steel AISI304

24 models matching criteria
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 127 mm
  • Cable Length - 5 Meters
  • Power Supply - Standard 24VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 127 mm
  • Cable Length - 5 Meters
  • Power Supply - Standard 24VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 227 mm
  • Cable Length - 5 Meters
  • Power Supply - Standard 24VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 227 mm
  • Cable Length - 2 Meters
  • Power Supply - Standard 24VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 127 mm
  • Cable Length - 5 Meters
  • Power Supply - 115 VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 127 mm
  • Cable Length - 2 Meters
  • Power Supply - Standard 24VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 227 mm
  • Cable Length - 5 Meters
  • Power Supply - 230 VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 127 mm
  • Cable Length - 2 Meters
  • Power Supply - 230 VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 227 mm
  • Cable Length - 2 Meters
  • Power Supply - 115 VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 127 mm
  • Cable Length - 2 Meters
  • Power Supply - 230 VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 227 mm
  • Cable Length - 2 Meters
  • Power Supply - 230 VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 127 mm
  • Cable Length - 2 Meters
  • Power Supply - 115 VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 227 mm
  • Cable Length - 2 Meters
  • Power Supply - Standard 24VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 227 mm
  • Cable Length - 2 Meters
  • Power Supply - 115 VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 127 mm
  • Cable Length - 5 Meters
  • Power Supply - 115 VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 127 mm
  • Cable Length - 5 Meters
  • Power Supply - 230 VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 127 mm
  • Cable Length - 5 Meters
  • Power Supply - 230 VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 127 mm
  • Cable Length - 2 Meters
  • Power Supply - Standard 24VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 227 mm
  • Cable Length - 5 Meters
  • Power Supply - 115 VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 227 mm
  • Cable Length - 5 Meters
  • Power Supply - Standard 24VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 127 mm
  • Cable Length - 2 Meters
  • Power Supply - 115 VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 227 mm
  • Cable Length - 5 Meters
  • Power Supply - 115 VAC
Out of Stock
  • Analog Outputs - Current output 4-20 mA
  • Stem Length - 227 mm
  • Cable Length - 5 Meters
  • Power Supply - 230 VAC
Out of Stock
  • Analog Outputs - Voltage output 0...10 Vdc
  • Stem Length - 227 mm
  • Cable Length - 2 Meters
  • Power Supply - 230 VAC
Out of Stock
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