Series WHT Weather-Resistant Humidity/Temperature Transmitter

Brand: Dwyer Instruments, LLC

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.
Features
  • RH or RH and Temperature Outputs
  • Compact NEMA 3S Construction

Specifications

Accuracy

  • ± 0.3° C at 25° C (± 0.9° F at 77° F)
  • RH: ± 3 % at 20 to 80 %
  • RH: ± 4 % at 10-20 %, 80-90 %
  • Thermistor: ± 0.2° C at 25° C (± 0.36° F at 77° F)

Approvals & Certifications

  • CE

Compensated Temperature

  • -20° to 60° C (-4° to 140° F) - RH

Electrical Connectors

  • Removable Screw Terminal Block

Enclosure, Body Material

  • Polyamide

Environmental Protection

  • IP54
  • NEMA 3S

Humidity

  • 0 to 100 % Relative Humidity

Hysteresis

  • RH: ± 1 %

Output

  • 0-10 V at 5 mA
  • 0-5 V at 5 mA
  • 4-20 mA

Power Requirement

  • 10 to 29 Vac - (0 to 5 V Output Models)
  • 10 to 35 Vdc - (0 to 5 V Output Models, 4-20 mA Loop Powered Models)
  • 15 to 29 Vac (0-10 V Output Models)
  • 15 to 35 Vdc - (0-10 V Output Models)

Repeatability

  • RH: ± 0.1 % Typical

Response Time

  • 15 seconds

Sensor / Probe Material

  • Capacitance Polymer

Sensor / Probe Type

  • RH
  • Thermistor - 10 kiloohms (Typical III)

Storage Temperature

  • -40° to 80° C (-40° to 176° F)

Temperature Range

  • -40° to 60° C (-40° to 140° F)

  • Air Handling Economizers
  • Air Environment Monitoring in Agriculture or Livestock Cultivation Houses
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