The RHT-WM and RHT-DM transmitters have highly accurate and stable sensors for measuring relative humidity and temperature. The measured values are converted into 4 to 20 mA output signals that are linearly related to their readings.
Since they are microprocessor-based devices, it is possible to use the TxConfig-USB communication interface and the SigNow app or software, available for Android and Windows, to configure them. Outputs can be configured to transmit temperature, relative humidity or dew point. The RHT-WM model must be wall-mounted. The RHT-DM model has an extended sensor probe to be mounted in ducts or through walls.
• Relative Humidity:
0 to 100 % RH (non-condensing)
• Dew Point:
-100 to 103 °C (-148 to 217.4 °F)
• Response time:
Temperature: up to 30s @ 25 °C (77 °F) (with air moving at 1 m/s or 3.28 ft/s), Humidity: up to 8s @ 25 °C (77 °F) (with air moving at 1 m/s or 3.28 ft/s)
• Measurement accuracy:
Temperature: ± 0.4 °C @ 25 °C (± 0.9 °F @ 77 °F), Relative Humidity: ± 3 % RH @ 25 °C (77 °F)
• Analog outputs resolution:
0.0008 mA
• Operating temperature:
-20 to 70 °C (-4 to 158 °F), 0 to 95 % RH (electronic module)
• Connections:
Internal terminal block, via cable glands
• Rod Length:
150 or 250 mm (5.90 or 9.84 in) for DM models
• Materials:
Housing (WM/DM models) in PA-GF, Rod (DM models) in SS316 or PA-GF
• Configuration:
SigNow software for Windows or Android with TxConfig-USB configuration interface