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225-THT-1 Temperature and Relative Humidity Sensor

Temperature and Relative Humidity Sensor
225-THT-1 Temperature and Relative Humidity Sensor
Temperature and Relative Humidity Sensor
225-THT-1 Temperature and Relative Humidity Sensor
Temperature and Relative Humidity Sensor with Shield
225-THT-1 Temperature and Relative Humidity Sensor
Temperature and Relative Humidity Sensor
225-THT-1 Temperature and Relative Humidity Sensor
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The 225-THT-1 Temperature & Humidity Sensor is configured for measuring relative humidity and temperature in environmental control systems, where condensation or dust will commonly be encountered. An electronic circuit in the enclosure converts the capacitance to a voltage output which is linearly proportional to the ambient relative humidity. Temperature is sensed by a 100 ohm platinum resistance element and converted to a linear analog output.
Product Details

The 225-THT-1 Temperature & Humidity Sensor is configured for measuring relative humidity and temperature in environmental control systems, where condensation or dust will commonly be encountered. A fully gasketed watertight enclosure, locking strain relief connections, and a brass sintered filter protect the electronics and sensors from environmental or mechanical damage.

An electronic circuit in the enclosure converts the capacitance to a voltage output which is linearly proportional to the ambient relative humidity. Temperature is sensed by a 100 ohm platinum resistance element and converted to a linear analog output. The sensor should be mounted in a solar radiation shield when placed outdoors. The remote probe comes with four feet of cable and a mounting clamp.

The sensor can be powered by 10-30Vdc, 120Vac 50/60Hz, or 220Vac 50/60Hz. It features three outputs for relative humidity and three outputs for temperature, 0-1V, 0-5V, and 4-20mA. All six outputs are available on a terminal strip inside the enclosure and can be used at the same time.

Specifications

  • Sensors:
    • Relative humidity: Capacitive (thin film)
    • Temperature: PT100 RTD
  • Range:
    • Relative Humidity: 5.0% to 95% RH
    • Temperature: -5° to 175°F (-20° to 80°C)
  • Accuracy: ±2% RH, ±0.5°C
  • Response time (without filter):
    • Relative humidity: 90% of measured value in 15 seconds
    • Temperature: approximately 60 seconds
  • Output:
    • 0 to 1 Vdc for 0-100% RH
    • 0 to 5 Vdc for 0-100% RH
    • 4 to 20 mA for 0-100% RH
    • 0 to 1 Vdc for -20° to 80°C
    • 0 to 5 Vdc for -20° to 80°C
    • 4 to 20 mA for -20° to 80°C
  • Operating range: -4° to 180°F (-20° to 80°C)
  • Power supply required:
    • 120 Vac, 50/60 Hz or
    • 220 Vac, 50/60 Hz or
    • 10 to 30 Vdc
  • Housing: ABS plastic, watertight, with strain reliefs
  • Filter: sintered brass
  • Dimensions:
    • Housing: 4.8" x 4.8" x 2.2"
    • Probe: 6.25" x 1" diameter, includes 4' cable
  • Weight/Shipping: 18 oz/2 lbs

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