
Belimo 22DC-51 Sensor
The Belimo 22DC-51 is a precision-engineered duct CO2 sensor designed for demanding Demand Controlled Ventilation (DCV) applications. This 7-inch probe utilizes Non-Dispersive Infrared (NDIR) technology with dual-channel self-calibration to ensure accurate long-term monitoring of indoor air quality. Field-selectable output signals of 0-5V or 0-10V provide seamless integration with standard Building Automation Systems (BAS) and controllers. Built with a NEMA 4X / IP65 rated enclosure, the 22DC-51 stands up to harsh mechanical environments and high-humidity conditions common in commercial HVACR ductwork. The dual-beam technology compensates for sensor aging and environmental drift, significantly reducing the need for field recalibration. For contractors, the tool-free snap-cover and removable terminal blocks streamline the installation process, ensuring reliable CO2 ppm tracking and optimized energy efficiency for air handling units. This sensor serves as a critical component for achieving ASHRAE 62.1 standards for ventilation and maintaining superior environmental control.
Key Benefits- Selectable Voltage Output: Flexible 0-5V or 0-10V DC signals allow for wide-ranging compatibility with legacy and modern 10V controllers.
- Calibration Stability: Dual-channel NDIR technology prevents drift, maintaining 0-2000 ppm accuracy without frequent manual intervention.
- Durable Construction: The NEMA 4X housing ensures protection against dust and moisture infiltration in vertical or horizontal duct runs.
- Rapid Installation: Features a 7-inch probe length and standardized mounting flange for quick deployment in HVAC ventilation ducts.
How do I configure the output range on the Belimo 22DC-51?
The output signal is field-adjustable via internal DIP switches, allowing you to toggle between 0-5V and 0-10V to match your controller’s input requirements.
Does this CO2 sensor require periodic manual calibration?
The unit features an auto-calibration algorithm that compensates for sensor aging; however, technical best practices suggest checking the ppm baseline during annual maintenance cycles.
Can the 22DC-51 be used in high-moisture air streams?
Yes, the IP65 rated enclosure is specifically designed to protect the internal electronics from the condensation often found in cooled air streams within commercial ducting.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $375.57
-65%$375.57
$131.45Belimo 22DC-51 Sensor
The Belimo 22DC-51 is a precision-engineered duct CO2 sensor designed for demanding Demand Controlled Ventilation (DCV) applications. This 7-inch probe utilizes Non-Dispersive Infrared (NDIR) technology with dual-channel self-calibration to ensure accurate long-term monitoring of indoor air quality. Field-selectable output signals of 0-5V or 0-10V provide seamless integration with standard Building Automation Systems (BAS) and controllers. Built with a NEMA 4X / IP65 rated enclosure, the 22DC-51 stands up to harsh mechanical environments and high-humidity conditions common in commercial HVACR ductwork. The dual-beam technology compensates for sensor aging and environmental drift, significantly reducing the need for field recalibration. For contractors, the tool-free snap-cover and removable terminal blocks streamline the installation process, ensuring reliable CO2 ppm tracking and optimized energy efficiency for air handling units. This sensor serves as a critical component for achieving ASHRAE 62.1 standards for ventilation and maintaining superior environmental control.
Key Benefits- Selectable Voltage Output: Flexible 0-5V or 0-10V DC signals allow for wide-ranging compatibility with legacy and modern 10V controllers.
- Calibration Stability: Dual-channel NDIR technology prevents drift, maintaining 0-2000 ppm accuracy without frequent manual intervention.
- Durable Construction: The NEMA 4X housing ensures protection against dust and moisture infiltration in vertical or horizontal duct runs.
- Rapid Installation: Features a 7-inch probe length and standardized mounting flange for quick deployment in HVAC ventilation ducts.
How do I configure the output range on the Belimo 22DC-51?
The output signal is field-adjustable via internal DIP switches, allowing you to toggle between 0-5V and 0-10V to match your controller’s input requirements.
Does this CO2 sensor require periodic manual calibration?
The unit features an auto-calibration algorithm that compensates for sensor aging; however, technical best practices suggest checking the ppm baseline during annual maintenance cycles.
Can the 22DC-51 be used in high-moisture air streams?
Yes, the IP65 rated enclosure is specifically designed to protect the internal electronics from the condensation often found in cooled air streams within commercial ducting.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Belimo 22DC-51 is a precision-engineered duct CO2 sensor designed for demanding Demand Controlled Ventilation (DCV) applications. This 7-inch probe utilizes Non-Dispersive Infrared (NDIR) technology with dual-channel self-calibration to ensure accurate long-term monitoring of indoor air quality. Field-selectable output signals of 0-5V or 0-10V provide seamless integration with standard Building Automation Systems (BAS) and controllers. Built with a NEMA 4X / IP65 rated enclosure, the 22DC-51 stands up to harsh mechanical environments and high-humidity conditions common in commercial HVACR ductwork. The dual-beam technology compensates for sensor aging and environmental drift, significantly reducing the need for field recalibration. For contractors, the tool-free snap-cover and removable terminal blocks streamline the installation process, ensuring reliable CO2 ppm tracking and optimized energy efficiency for air handling units. This sensor serves as a critical component for achieving ASHRAE 62.1 standards for ventilation and maintaining superior environmental control.
Key Benefits- Selectable Voltage Output: Flexible 0-5V or 0-10V DC signals allow for wide-ranging compatibility with legacy and modern 10V controllers.
- Calibration Stability: Dual-channel NDIR technology prevents drift, maintaining 0-2000 ppm accuracy without frequent manual intervention.
- Durable Construction: The NEMA 4X housing ensures protection against dust and moisture infiltration in vertical or horizontal duct runs.
- Rapid Installation: Features a 7-inch probe length and standardized mounting flange for quick deployment in HVAC ventilation ducts.
How do I configure the output range on the Belimo 22DC-51?
The output signal is field-adjustable via internal DIP switches, allowing you to toggle between 0-5V and 0-10V to match your controller’s input requirements.
Does this CO2 sensor require periodic manual calibration?
The unit features an auto-calibration algorithm that compensates for sensor aging; however, technical best practices suggest checking the ppm baseline during annual maintenance cycles.
Can the 22DC-51 be used in high-moisture air streams?
Yes, the IP65 rated enclosure is specifically designed to protect the internal electronics from the condensation often found in cooled air streams within commercial ducting.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












