Automated Logic Dual Channel CO2 Duct Sensor (NSB-DCD05-D-BB-LED-A)
The Automated Logic NSB-DCD05 is a high-precision duct-mounted sensor designed for sophisticated Demand Controlled Ventilation (DCV). By utilizing advanced Dual Channel Non-Dispersive Infrared (NDIR) technology, this unit provides long-term stability and accuracy, even in environments that are continuously occupied 24/7.
Key Performance Features
Dual Channel NDIR Technology: Optimized for 24/7 occupancy, the dual-channel optical system and three-point calibration process ensure industry-leading reliability and reduced sensor drift.
Automatic Air Pressure Compensation: Features a built-in barometric sensor that automatically adjusts CO2 readings based on altitude and weather patterns, ensuring accuracy regardless of installation location.
Visual Feedback: Includes an integrated LED indicator for immediate at-a-glance air quality status (Green/Orange/Red).
Flexible Integration: Offers field-selectable outputs (0-5 VDC or 0-10 VDC) to easily interface with almost any Building Automation System (BAS).
Rugged Construction: Encased in a UL94 V-O rated polycarbonate enclosure, designed to withstand the airflow and conditions within HVAC ductwork.
Technical Specifications
| Specification | Details |
| Part Number | NSB-DCD05-D-BB-LED-A |
| Detection Range | 0 to 2,000 PPM |
| Accuracy | ± 75 PPM |
| Output (Selectable) | 0-5 VDC or 0-10 VDC |
| Power Requirement | 12-24 VDC (200mA) or 18-24 VAC (2VA) |
| Response Time | < 5 minutes (post 10-min warm-up) |
| LED Indicators | Green (<1k), Orange (1k-1.5k), Red (>1.5k) |
| Enclosure Rating | Polycarbonate, UL94 V-O |
HVAC Professional’s Tip
Installation Note: This unit utilizes an aspiration tube to sample duct air. For the most accurate readings, ensure the aspiration tube is placed in the center of the duct stream, away from corners or turbulent air junctions, and allow for the full 10-minute start-up time before verifying calibration or integrating with your control loops.
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