Humidity transmitters for building automation systems
RHT relative humidity transmitters are engineered for building automation systems in the HVAC/R industry. The RHT measures relative humidity (rH), and temperature (T). RHT devices are available with large touchscreen display making configuration of the device quick and easy.
RHT devices include:
• Separate field configurable output for each measurement parameter (rH and T)
• Proportional output options including: voltage (0–10 V, 2–10 V) and current (4–20 mA)
• Offset feature enabling field calibration for each measurement parameter (rH, T)
RHT series device options offer:
• 2” x 3” touchscreen display
• Field configurable relay for any of the two parameters
• Modbus configuration
Technical details
| Accurary: | Temperature: <0.5 °C Relative humidity: ±2…3 % rH at 0…50 °C and 10…90 % rH Total error band includes accuracy, hysteresis and temperature effect over 5...50 °C and 10–90 % rH |
| Measuring units: | °C, % rH |
| Measurement elements: | Pt1000 temperature sensor, thermoset polymer capacitive sensing element for humidity |
| Supply voltage: | 24 VDC/VAC ±10 % |
| Output signal 1: | 0/2…10 V or 4…20 mA (linear to rH) |
| Output signal 2: | 0/2…10 V or 4…20 mA (linear to Temp) |
| Optional relay output: | Potential free SPDT 250 VAC, 6 A / 30 VDC, 6 A with adjustable switching point and hysteresis |
| Operating temperature: | 0...+50 °C |
| Protection standard: | IP20 |