Weather Resistant Humidity and Temperature Transmitter

Weather Resistant Humidity and Temperature Transmitter

Series WHT Weather-Resistant Humidity/Temperature Transmitter

Compact Housing, Sintered Filter

The compact Series WHT Humidity/Temperature Transmitter is designed to withstand the elements. A removable sintered filter protects the polymer capacitance sensor from solid objects that may come in contact with the transmitter. The transmitter is available with 4 to 20 mA or 0 to 10 VDC output signals for both temperature and humidity. This transmitter is ideal for measuring outside air temperature and humidity levels for air handling economizer applications.

Product Applications

• Air handling economizers
• Air environment monitoring in agriculture or livestock cultivation houses

ModelDescription

• WHT-310Water-resistant humidity transmitter with sintered filter, 3% accuracy, 4-20 mA humidity output.
• WHT-311Water-resistant humidity/temperature transmitter with sintered filter, 3% accuracy, 4-20 mA humidity and temperature output.
• WHT-31AWater-resistant humidity/temperature transmitter with sintered filter, 3% accuracy, 4-20 mA humidity output and 10K Ω Type III, curve A temperature output.
• WHT-320Water-resistant humidity transmitter with sintered filter, 3% accuracy, 0-10 VDC humidity output.
• WHT-322Water-resistant humidity/temperature transmitter with sintered filter, 3% accuracy, 0-10 VDC humidity and temperature output.
• WHT-32AWater-resistant humidity/temperature transmitter with sintered filter, 3% accuracy, 0-10 VDC humidity output and 10K Ω Type III, curve A temperature output.
• WHT-330Water-resistant humidity transmitter with sintered filter, 3% accuracy, 0-5 VDC humidity output.
• WHT-333Water-resistant humidity/temperature transmitter with sintered filter, 3% accuracy, 0-5 VDC humidity and temperature output.

Specifications

• Relative Humidity Range:0 to 100% RH.
• Temperature Range:-40 to 140°F (-40 to 60°C).
• Accuracy, RH:±3% 20 to 80% RH, ±4% @ 10 to 20%, 80 to 90%.
• Accuracy, Temp Models with 4 to 20 mA Temp. Output:±0.9°F @ 72°F (±0.3°C @ 25°C).
• Accuracy, Temp Models with Passive Thermistor Temp Sensor:±0.4°F @ 77°F (±0.22°C @ 25°C).
• Hysteresis, RH:±1%.
• Repeatability, RH:±0.1% typical.
• Temperature Limits:-40 to 140°F (-40 to 60°C).
• Storage Temperature:-40 to 176°F (-40 to 80°C).
• Compensated Temperature Range, RH:-4 to 140°F (-20 to 60°C).
• 4-20 mA Loop Powered Models:Power Requirements: 10 to 35 VDC; Output Signal: 4 to 20 mA.
• 0 to 10 V Output Models:Power Requirements: 15 to 35 VDC or 15 to 29 VAC; Output Signal: 0 to 10 V @ 5 mA max.
• 0 to 5 V Output Models:Power Requirements: 10 to 35 VDC or 10 to 29 VAC; Output Signal: 0 to 5 V @ 5 mA max.
• Response Time:15 s.
• Electrical Connections:Removable screw terminal block.
• Drift: