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White enclosure with airflow openings and Visual alert
White enclosure with airflow openings and Visual alert
White enclosure with airflow openings and Indicator lights
White enclosure with airflow openings and Indicator lights
Plastic enclosure with black base and white cover with airflow openings
Plastic enclosure with black base and white cover with airflow openings
PCB with components mounted in a black enclosure

Intelligent temperature | humidity sensor, 24 VDC - PoM


Product description

Room temperature humidity controller with single output. The supply voltage is 24 VDC. It measures temperature, relative humidity and ambient light level. Based on the measured values, the dew point is calculated. The sensor algorithm controls the single analogue output based on the measured values. This single output can be used to directly control an EC fan, an AC fan speed controller or a damper actuator. The output type can be selected: 0-10 VDC / 0-20 mA / 0-100 % PWM. All measurements and the output value are available via Modbus RTU. The power supply can be connected via the terminal blocks or via the RJ45 connector. In many applications, the ambient light sensor can be used to control the ventilation system in function of the occupancy of the room. All settings can be adjusted via Modbus RTU. Also the light intensity of the LEDs for status indication is adjustable.




Article code RCTHH-2
GTIN 0.540.100.301.794.4
Category Room temperature and humidity sensors
Available
Current stock 3 U.
Documents

Additional specifications and description

  
Is the temperature OK?
This HVAC transmitter offers a clear, visual indication of the temperature via the green, yellow and red LED. The green LED indicates that temperature is within range. When the temperature enters the alert range, the yellow LED lights up. Red means: too hot or too cold. It is also possible to visualise relative humidity via the LEDs. The measured temperature, relative humidity and ambient light level are available via Modbus RTU.
 
How to avoid condensation?
The output of this sensor can control an EC fan, an AC fan speed controller or a damper actuator. The output value varies proportionally in function of the measured temperature and relative humidity.
E.g. if relative humidity increases, the sensor will increase the fan speed or open the damper.
 
4-wire connection
This sensor offers you the choice to connect it via the cage clamp terminal blocks or via the RJ45 connector. Supply voltage and Modbus RTU communication can be connected via the RJ45 connector. Via the terminal blocks it is possible to connect the outputs, Modbus RTU communication and the supply voltage. Never connect the supply voltage via the RJ45 connector and the terminal blocks simultaneously! The supply voltage is 24 VDC. The ground terminals of the power supply (V-) and output (GND) are internally not connected. This means that a 4-wire cable is required to connect this sensor. Most 24 VDC power supplies offer protection against short circuit, overload and overvoltage. A 24 VDC supply voltage increases the safety and reliability of your installation.
 
Easy to use!
This sensor doesn't require any configuration. Once installed, it is ready to use. The default settings will do for most applications. If necessary, the settings can be adjusted via Modbus RTU. For example, a different output type can be selected to make it compatible with other devices: 0-10 VDC / 0-20 mA / 0-100 % PWM / Modbus RTU. Also the light intensity of the LEDs for status indication is adjustable. The Modbus register map provides a complete overview of all adjustable settings.
 
High quality
This HVAC transmitter is manufactured in Europe. Each sensor is calibrated and tested in our factory. We use sensor elements and components of high quality. This ensures the long-term stability and accuracy of this HVAC transmitter. The enclosure offers an IP30 protection against ingress of dust and moisture. It can be mounted on a wall indoors. To ensure optimal performance, it should be protected from direct sunlight.
    

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