Dwyer HHT Humidity/Temperature Transmitter
Starting at $592.00

Usually ships in 4-6 business days [?]

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Features

  • Relative Humidity Range: 0 to 100% RH
  • Temperature Range: -40 to 140°F (-40 to 60°C)
  • Accuracy: ±2% 10-90% RH, ±0.9°F at 72°F (±0.3°C at 25°C)
  • Repeatability: ±0.1% typical
  • Temperature compensated over entire range
  • 4-20 mA output, 2 channels for humidity/temperature models (loop power on RH)
  • Screw terminal block electrical connection
  • Conduit Connection: 1/2" female NPT
  • Capacitance polymer RH sensor
  • Solid state band gap temperature sensor
  • Aluminum housing
  • Optional 2 line alpha numeric display
  • CE, FM approved
  • NEMA 4X (IP66) rated enclosure
  • Approvals:
    • HHT-EX: FM Explosion-proof, Class I Div. 1 Group B, C, D, Class II Div. 1 Group E, F, G, Class III Div. 1
    • HHT-IX: FM Intrinsically Safe, Class I Div. 1 Group A, B, C, D, Class II Div. 1 Group E, F, G, Class III Div. 1 T4

The Dwyer HHT Hazardous Area Humidity/Temperature Transmitter takes accurate measurements in the harshest of environments. The transmitter is offered in explosion-proof and intrinsically-safe versions depending on the application's requirements. The explosion-proof model is offered with 4 to 20 mA output for humidity only. The intrinsically-safe version is offered with 4 to 20 mA output for humidity and temperature. Both versions have an optional two line alphanumeric display to show the current humidity and temperature.

The Series HHT humidity/temperature transmitter is excellent for offshore HVAC applications, dust and grain applications. Intrinsically safe models require an intrinsically safe barrier.

Dwyer A-287 Mounting Bracket
Mounting bracket for Dwyer TTE temperature transmitter
$11.75
Dwyer Galvanic Barrier
Loop powered galvanic barrier for use with intrinsically safe transmitters
$494.00

Applications

This product can be used in the following applications: