Accuenergy duct mount CO2 sensor is an important device used in Building Automation Systems (BAS) that provides carbon dioxide levels to control building/room ventilation, and proper fresh air, ensuring healthy indoor air quality levels. The AcuCO2 DM sensor inserts directly into the duct work of the HVAC system, and sends an analog signal to the BAS, or other ventilation controller, the real-time CO2 concentration levels ensuring efficient ventilation operation only when necessary.
The AcuCO2 DM sensor provides an analog signal that equates to the real-time CO2 concentration to the BAS controller. This information is used to control the amount of outdoor fresh air brought into the building, and when exhaust ventilation is required. The sensor enables better control of the fresh air intake and mechanical ventilation when more people are present in the building and reduce equipment operation when less occupied.
The AcuCO2 DM sensor is an important component in controlling the fresh air in modern, tightly sealed LEED certified buildings, with many occupants. The sensor ensures that the building ventilation system provides adequate fresh air to maintain acceptable CO2 levels, which is directly correlates to occupant comfort, health, and productivity.
Instead of constant mechanical ventilation operating to a set standard, monitoring the CO2 levels and ventilating only when necessary, the system avoids over operation, especially during periods of low occupancy. Better control reduces heating, cooling, and fan energy costs and longer lifespan of equipment.
 Demand-Controlled Ventilation |
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The AcuCO2 DM sensor provides an analog signal that equates to the real-time CO2 concentration to the BAS controller. This information is used to control the amount of outdoor fresh air brought into the building, and when exhaust ventilation is required. The sensor enables better control of the fresh air intake and mechanical ventilation when more people are present in the building and reduce equipment operation when less occupied.
 Improved Indoor Air Quality |
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The AcuCO2 DM sensor is an important component in controlling the fresh air in modern, tightly sealed LEED certified buildings, with many occupants. The sensor ensures that the building ventilation system provides adequate fresh air to maintain acceptable CO2 levels, which is directly correlates to occupant comfort, health, and productivity.
 Energy Efficiency |
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Instead of constant mechanical ventilation operating to a set standard, monitoring the CO2 levels and ventilating only when necessary, the system avoids over operation, especially during periods of low occupancy. Better control reduces heating, cooling, and fan energy costs and longer lifespan of equipment.
AcuCO2-DM | Measurement Range | Accuracy | Response Time | Sampling Frequency | Certification |
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 | 0 ~ 2,000 ppm | ±30 ppm and ±3% at 400 -2500 ppm @ 0~50ºC (32~122°F) | ≤ 30s | 1-Second | CE |
| 0 ~ 2,500 ppm | ±30 ppm and ±3% at 400 -2500 ppm @ 0~50ºC (32~122°F) | ≤ 30s | 1-Second | CE | |
| 0 ~ 5,000 ppm | ±30 ppm and ±3% at 400 -2500 ppm @ 0~50ºC (32~122°F) | ≤ 30s | 1-Second | CE |
AcuCO2-DM |
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Measurement Range | Accuracy | Response Time | Sampling Frequency | Certification |
|---|---|---|---|---|
| 0 ~ 2,000 ppm | ±30 ppm and ±3% at 400 -2500 ppm @ 0~50ºC (32~122°F) | ≤ 30s | 1-Second | CE |
| 0 ~ 2,500 ppm | ±30 ppm and ±3% at 400 -2500 ppm @ 0~50ºC (32~122°F) | ≤ 30s | 1-Second | CE |
| 0 ~ 5,000 ppm | ±30 ppm and ±3% at 400 -2500 ppm @ 0~50ºC (32~122°F) | ≤ 30s | 1-Second | CE |
Yes, the AcuCO2-DM-02 meets accuracy requirement of ±30PPM at concentration of 600, 1000, and 2500 PPM.
Typically, the AcuCO2-DM is mounted in the return air duct in an area where the sensor is accessible for maintenance when necessary. Pick a location where there is consistent airflow in, not dead zones. The probe needs to be sampling gas levels in well mixed air which provides an average reading of CO2 levels in occupied spaces. Ensure the sensor is mounted away from any sources of air turbulence.
No, but the sensor has three optional ranges of 0 to 2,000 / 0 to 2,500 / 0 to 5,000 PPM. All CO2 models have both a 4-20mA and 0-10VDC output which correlates to the CO2 PPM span.
Yes, when the sensor power supply voltage is AC. The signal output ground (C) and power supply ground (N) are isolated, so two separate ground references are required. A jumper wire can be added to the AcuCO2 DM grounds (C and N) when power with DC power supply. Refer to wiring diagram in installation manual.
