Temperature and Humidity Transmitter RHT Climate

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RHT Climate

Temperature and Humidity Transmitter

With a wide backlit LCD and distinctive design, the RHT Climate is a relative humidity and temperature transmitter that provides highly accurate and stable measurements over a wide operating range. It calculates in real time seven psychrometric properties and all variables will be available in current or voltage retransmission or by RS485 Modbus RTU communication.


Versatile, the device allows parameters configuration, temperature and relative humidity simulation and retransmission signal generation, useful features for fast and easy in the field commissioning through USB with NXperience or directly over the keyboard. The RHT Climate also has two digital alarm outputs and an embedded buzzer for sound alarm.

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- Sensor Measurement Range:
  Temperature: -40,0 °C to 100,0 °C (DM models)/ -40,0 °C to 60,0 °C (WM models)
  Relative humidity: 0.0 to 100.0 %RH (non-condensing)
  Dew point: -90,0 °C a 100,0 °C
- Measurement Resolution:
  Temperature: 0,1 °C, 14 bits (65535 levels)
  Relative humidity: 0,1 %, 12 bits (4095 levels)
- Response Time:
  Temperature: up to 5 sec @ 25 °C with slow moving air (1 m/s)
  Relative humidity:up to 4 sec @ 25 °C with slow moving air (1 m/s)
- Measurement Accuracy:

- Temperature: ± 0,4 °C (0 °C to 60 °C)

- Relative humidity: ± 1.8 % RH to 23 °C (0 % to 90 % RH)
- Samplings interval: 3 seconds
- Analog outputs: two 0-10 V or 4-20 mA outputs configurable by software or keyboard
- Display: wide backlit LCD with three variables of 4 ½ digits
- Keys: 3 keys with tactile feedback for navigation and adjustment of parameters
- Alarms: two digital outputs and one embedded buzzer
- Operating temperature: -40 ° C to 60 ° C
- Connections: internal terminals through cable glands
- Dimensions: 100.3 x 80.0 x 45.1 mm
- Enclosure: ABS+PC
- Protection Rating:
  Temperature: (0 °C to +60 °C)
  ±1,8 %RH @ +23 °C (0 %RH to 90 %RH)
- Power Supply:
  By USB: 4.75 Vdc to 5.25 Vdc
  By connectors: 12 Vdc to 30 Vdc; maximum consumption 70mA +/- 10% @ 24Vdc

- Protection Rating:
  Sensor probe: IP30
  Enclosure: IP65
  Communication interfaces: USB type Micro-B 2.0 and RS485 (both in Modbus RTU)
  Programming: NXperience software for Windows through USB






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