.webp "Dew point controller")
.webp "Humidity controller")
.webp "Dew point sensor")
.webp "Temperature humidity sensor")
.webp "Temperature humidity controller")
.webp "Dew point detector")
EU declaration conformity
Temperature and Humidity Controller | Outdoor IP65 | PoM
Product description
OCTHM-R is a controller for monitoring and regulating temperature, relative humidity, and ambient light in demanding conditions. The dew point is calculated based on the temperature and humidity readings.
The controller generates one output that can directly control an EC fan, an AC fan speed controller, or a damper actuator. Modbus RTU communication and a 24 VDC power supply are connected by Power over Modbus (PoM) via one RJ45 connector. All measured values and settings are accessible via Modbus RTU communication.
The enclosure is made from premium R-ABS and provides an IP65 protection. The controller is designed for outdoor applications or harsh environments.
Additional specifications and description
Which parameters are measured and why is it important?
This controller measures and regulates temperature, relative humidity and ambient light. The dew point is calculated based on this measurements.
Maintaining precise temperature and humidity control in demanding conditions is challenging, as extreme conditions — such as high or low temperatures, excessive humidity, or dryness — can adversely affect equipment and processes. Nevertheless, it remains critical across industries like manufacturing, food processing, data centers, and laboratories, where stable environmental conditions are essential.
What are the configuration and customisation options?
This controller requires little configuration and can be used almost immediately once it has been installed. Temperature and relative humidity can vary depending on the region and season, these parameters are set to the correct values during installation. The other default settings are typically suitable for most applications, however, they can also be adjusted, if necessary. The Modbus register map provides a complete overview of all adjustable settings.
The algorithm controls one output based on measured values, which can directly control an EC fan, an AC fan speed controller, or a damper actuator. The output value changes in direct proportion to the measured temperature or relative humidity. Modbus RTU communication is used to transmit the measured values and can be used to change all of the settings.
How is the controller installed, and what are the power and connectivity requirements?
The controller is intended for mounting on a wall or flat surface.
This controller can be connected with just one RJ45 connector. Power over Modbus (PoM) connects Modbus RTU communication and a 24 VDC power supply via one single UTP-cable. To make wiring easier, we recommend using a Sentera 24 VDC power supply with an RJ45 connector. A 24 VDC supply voltage increases the safety and reliability of your installation, by offering protection against short circuit, overload and overvoltage.
What are the manufacturing quality and protection ratings?
All controllers are designed and manufactured in Europe. Each device is calibrated and tested in our factory. Only high-quality components are used, ensuring long-term stability and accuracy.
The enclosure is produced in-house by Sentera Plastics from premium R-ABS, providing exceptional strength and durability. The enclosure is designed for outdoor applications or harsh environments and provides an IP65 protection against ingress of dust and moisture. To ensure optimal performance, the device should be protected from direct sunlight.
To protect the controller from excessive sunlight, rain, and snow, we offer a specially designed cover cap — AWP-10-13-13 — that fits perfectly and helps ensure reliable performance.
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