Dwyer - Outside Air Humidity Temp Sensor, 3% RH - WHT Series
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SERIES WHT Weather-Resistant Humidity/Temperature Transmitter

Description: The compact Series WHT Weather-Resistant Humidity/Temperature Transmitter is engineered to endure outdoor conditions, providing accurate humidity and temperature measurements even in challenging environments. Featuring a removable sintered filter that shields the polymer capacitance sensor from solid objects, this transmitter ensures reliable performance over time. With options for both 4-20 mA and 0-10 VDC output signals for temperature and humidity, the WHT transmitter is suitable for various applications, including air handling economizers and environmental monitoring in agricultural settings.

Features/Benefits:

  • Compact NEMA 3S housing allows for easy installation in tight spaces.
  • Combination RH and temperature outputs reduce installation costs by eliminating the need for separate transmitters.

Applications:

  • Air handling economizers.
  • Environmental monitoring in agriculture or livestock cultivation houses.

Specifications:

  • Relative Humidity Range: 0 to 100% RH.
  • Temperature Range: -40 to 140°F (-40 to 60°C).
  • Sensor Accuracy, RH: ±2% @ 20 to 80% RH, ±3% @ 10 to 20%, 80 to 90% RH.
  • Accuracy, Temp Models with 4-20 mA Temp. Output: ±0.9°F @ 72°F (±0.3°C @ 25°C).
  • Accuracy, Temp Models with Passive Thermistor Temp Sensor: ±0.36°F @ 77°F (±0.2°C @ 25°C).
  • Hysteresis, RH: ±1%.
  • Repeatability, RH: ±0.1% typical.
  • Temperature Limits: -40 to 140°F (-40 to 60°C).
  • Compensated Temperature Range, RH: -4 to 140°F (-20 to 60°C).
  • Power Requirements: 4-20 mA loop powered models: 10-35 VDC; 0-10 V output models: 15-35 VDC or 15-29 VAC; 0-5 V output models: 10-35 VDC or 10-29 VAC.
  • Output Signal: 4-20 mA loop powered models: 4-20 mA; 0-10 V output models: 0-10 V @ 5 mA max; 0-5 V output models: 0-5 V @ 5 mA max.
  • Response Time: 15 s.
  • Electrical Connections: Removable screw terminal block.
  • Drift: <1% RH/year.
  • RH Sensor: Capacitance polymer.
  • Temperature Sensor: 4-20 mA output, solid-state band gap. Passive output: 10K @ 25°C thermistor (Dwyer curve A).
  • Enclosure: ABS.
  • Enclosure Rating: Designed to meet NEMA 3S (IP54).
  • Weight: 0.3 oz (8.5 g).

The Series WHT Weather-Resistant Humidity/Temperature Transmitter offers durable construction, accurate measurements, and flexible output options, making it an ideal choice for outdoor applications where reliable environmental monitoring is essential. Its compact design and weatherproof housing ensure hassle-free installation and long-lasting performance in demanding environments.

Part Numbers:
WHT-310 Outside Air Humidity Temp Sensor IP55 3% RH 4-20mA Temperature None
WHT-311 Outside Air Humidity Temp Sensor IP55 3% RH 4-20mA Temperature 4-20mA
WHT-320 Outside Air Humidity Temp Sensor IP55 3% RH 0-10V Temperature None
WHT-322 Outside Air Humidity Temp Sensor IP55 3% RH 0-10V Temperature 0-10V
WHT-330 Outside Air Humidity Temp Sensor IP55 3% RH 0-5V Temperature None
WHT-333 Outside Air Humidity Temp Sensor IP55 3% RH 0-5V Temperature 0-5V
WHT-31A Outside Air Humidity Temp Sensor IP55 3% RH 4-20mA Temperature 10k Ohm Type III
WHT-32A Outside Air Humidity Temp Sensor IP55 3% RH 0-10V Temperature 10k Ohm Type III
WHT-31B Outside Air Humidity Temp Sensor IP55 3% RH 4-20mA Temperature 10k Ohm Type II
WHT-32B Outside Air Humidity Temp Sensor IP55 3% RH 0-10V Temperature 10k Ohm Type II


Please refer to the datasheet to check models capabilities.
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Frequently Bought Together

Total price $391.70