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Grey waterproof enclosure with duct probe and black mounting flange
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Grey waterproof enclosure with duct probe and black mounting flange
Grey waterproof enclosure with 4 metal screws
Grey waterproof enclosure with duct probe and black mounting flange
Grey waterproof enclosure with duct probe and black mounting flange
Grey waterproof enclosure with duct probe and black mounting flange
PCB with components mounted in a black plastic enclosure

Duct temperature | humidity controller, PoM


Product description

Duct temperature and humidity controller with Modbus RTU communication. It measures temperature and relative humidity in air ducts. Based on the measured values, the dew point is calculated. The sensor algorithm can directly control an EC fan, an AC fan speed controller or a damper actuator via Modbus RTU communication. The supply voltage is 24 VDC PoM - this means that Modbus RTU communication and 24 VDC power supply can be connected via one RJ45 connector. All measurements and the output value are available via Modbus RTU. All settings can be adjusted via Modbus RTU.




Article code
DCTHM-2
GTIN
0.540.100.301.791.3
Category
Duct temperature and humidity sensors
Available
Current stock
20 U.
Factory lead time
5 Week(s)
Documents
EU declaration conformity
EU declaration conformity

icon-downloadEU declaration conformity

Datasheet
Datasheet

icon-downloadDatasheet

Modbus register map
Modbus register map

icon-downloadModbus register map

Mounting instruction
Mounting instruction

icon-downloadMounting instruction

Additional specifications and description

 
Optimised for air ducts
This HVAC transmitter measures temperature and relative humidity in air ducts. Based on these measurements, the dew point is calculated. This sensor will function best if it is installed in a straight section of the air duct. Avoid installation in turbulent air zones nearby filters, fans, cooling coils, etc. Position the sensor correctly with respect to the airflow direction. Please consult the mounting instructions for more detailed information.
 
How does it work?
The sensor algorithm controls one output. This output 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. as temperature or relative humidity approaches their maximum limit, fan speed will increase or the damper will open. The control output is available via Modbus RTU.
 
Easy to connect!
One RJ45 connector is all it takes to connect this sensor! Modbus RTU communication and 24 VDC power supply are connected via one UTP cable - we call it Power over Modbus or PoM. All measured values are available via Modbus RTU communication. 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, the temperature or relative humidity range can be adjusted via Modbus RTU. 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 IP54 protection against ingress of dust and moisture. The sensor element is integrated in the probe of the duct sensor. This probe has an opening to have a direct contact between the air flow and the sensor element. The sensor probe offers an IP20 protection.

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