RHT-MOD Duct

Humidity transmitters with temperature output for duct that use Modbus serial communication protocol

RHT-MOD Duct is a relative humidity transmitter with temperature output installed in air ventilation duct. In addition to these measured values, RHT-MOD Duct calculates various parameters such as dew point, mixing ratio, enthalpy and absolute humidity. Illuminated display ensures easy readability also from a distance. The RHT-MOD has a screwless lid and an easily adjustable mounting flange that make the installation of the device easy.

 

RHT-MOD Duct series devices include:

Separate Modbus output for all measured and calculated parameters (relative humidity, temperature, dew point, mixing ratio, enthalpy and absolute humidity).

Offset feature enabling field calibration for measurement parameters rH and T.

• Mounting flange

• Clear backlit display

Technical details

Communication: RS-485 Modbus (RTU)
Accuracy: 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: NTC10k temperature sensor, thermoset polymer capacitive sensing element for humidity
Supply voltage: 24 VDC/VAC ±10 %
Current consumption: max 90 mA (at 24 V) + 10 mA for each voltage output
Operating temperature: 0...+50 °C
Protection standard: IP54

RHT-MOD Duct

Example
RHT-MOD Duct-D

Model

Product series

RHT
Relative humidity transmitter, analog outputs
RHT-MOD
Relative humidity transmitter, Modbus communication
RHT-MOD

Mounting

Duct
Duct mount
Duct

Display

-D
With display
Without display
-D

Other Modbus products: