The RHT-WM-485-LCD and RHT-DM-485-LCD transmitters include high precision and stability sensors for measuring temperature and relative humidity. They are micro processed devices and, therefore, allow being entirely configured through an RS485 interface, using the Modbus RTU commands. The DigiConfig allows the configuration of all transmitter features as well as its diagnostic procedure.
Features:
- Sensor Measurement Range:
- Temperature: -40 °C to 100 °C (DM models)/ -40 °C to 60 °C (WM models)
- Relative Humidity: 0.0 to 100.0 %RH (non-condensing)
- Dew point: -90.0 °C a 100,0 °C
- 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: ±0.2 °C (0 °C to +60 °C)
- Relative Humidity: ±1.8 % RH @ +23 °C (0 % RH 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 backlight 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: ±0.2 °C (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