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Driving demand-controlled ventilation from measured occupancy rather than a fixed schedule, this room carbon dioxide sensor reads 0 to 2,000 ppm and reports over 0-10 V DC and 4-20 mA. An on-board relay switches a fan or damper directly, so a single space can be controlled without a building controller in between, and the LCD shows the current level to anyone in the room.
Driving demand-controlled ventilation from measured occupancy rather than a fixed schedule, this room carbon dioxide sensor reads 0 to 2,000 ppm and reports over 0-10 V DC and 4-20 mA. An on-board relay switches a fan or damper directly, so a single space can be controlled without a building controller in between, and the LCD shows the current level to anyone in the room.
The ASENSE Room series monitors the carbon dioxide (CO2) levels in commercial, school, and office type environments. The concentration of CO2 is a strong indication of the overall indoor air quality. The ASENSE Series is based on a single beam non-dispersive infrared technology and is a cost-optimized solution for the climate control of buildings and other processes. In addition, ABC software eliminates the need for manual calibration.
Features
Applications
| Sensing Range | CO2: Temperature: 0 to 2000 ppm | -4 to 140°F (-20 to 60°C) |
| Accuracy | CO21: Temperature: ±30 ppm and ±3% of reading | ±1.8°F (1°C) |
| Annual Zero Drift | <± 0.3% of measurement range |
| Extended Range Accuracy > 2,000 PPM | ± 30 ppm and ± 5% of reading |
| Relay Deadband/Hysteresis | 100 ppm (factory set) |
| Repeatability | ±20 ppm ±1% of measured value |
| Display (Optional) | 4 digits, 7 segments LCD with ppm indicator |
| Output (Temperature) | 0/2 to 10V, 0/4 to 20 mA, 32 to 122°F (0 to 50°C) |
| Outputs | Output 1 (CO2): 0/2 to 10V, 0/4 to 20 mA, 0 to 2000 ppm |
| Relay (Optional) | Output 3: N.O. or N.C. rated 0.5A @ 125 V AC; 1A @ 24 V DC |
| Relay Durability | Mechanical: 5,000,000 operations minimum (at 36,000 operations/hr) |
| Relay Trip Point | 1000 ppm (factory set) |
| Power Consumption | <1W |
| Supply Voltage | 24 V AC/VDC ±20%; 50/60 Hz, 10.5 to 40 V DC maximum (Half-wave rectified) |
| Wiring Connections | 0.00232"2 (1.5 mm2) screw terminals |
| Calibration | Senseair ABC algorithm (Automatic Baseline Correction) |
| Coverage Area | 7500 sq. ft. maximum |
| Electrical | 100,000 operations minimum (under rated load, at 1,800 operations/hr) |
| Extended CO2 Ranges | Up to 10,000 ppm (factory set or programming cable required) |
| Operating Environment | Residential, commercial and industrial spaces |
| Operating Pressure | +1.6% per 0.145 psi (1 kPa) deviation from normal pressure (1 atmosphere = 14.7 psi (101.3 kPa)) |
| Operating RH | 0 to 85% RH Non-condensing |
| Self-Diagnostics | Complete function check, yellow LED; LCD error indication (display model only) |
| Sensing Method | Single beam Non-dispersive Infrared (NDIR) |
| Sensor Life | >15 years |
| Storage | Standard Versions: -40 to 158°F (-40 to 70°C) | LCD Versions: -4 to 122°F (-20 to 50°C) 0 to 85% RH Non-condensing |
| Warm-Up Time | <5 minutes (@ full specs 15 minutes) |
| Operating Temperature | 32°F to 122°F (0°C to 50°C) |
| Enclosure | ABS, Flammability Rating UL94-HB |
| Mounting Height | 4 to 6' off the floor |
| Product Dimensions (L x W x H) | 4.70 x 3.20 x 1.20" (119.4 x 81.3 x 30.5 mm) |
| Product Weight | 0.25 lbs (113 g) |
| Agency Approvals | EMC Directive 2014/30/EC, RoHS Directive 2011/65/EU & RoHS 3 Directive 2015/863/EU |
| Sensing Range | CO2: Temperature: 0 to 2000 ppm | -4 to 140°F (-20 to 60°C) |
| Accuracy | CO21: Temperature: ±30 ppm and ±3% of reading | ±1.8°F (1°C) |
| Annual Zero Drift | <± 0.3% of measurement range |
| Extended Range Accuracy > 2,000 PPM | ± 30 ppm and ± 5% of reading |
| Relay Deadband/Hysteresis | 100 ppm (factory set) |
| Repeatability | ±20 ppm ±1% of measured value |
| Display (Optional) | 4 digits, 7 segments LCD with ppm indicator |
| Output (Temperature) | 0/2 to 10V, 0/4 to 20 mA, 32 to 122°F (0 to 50°C) |
| Outputs | Output 1 (CO2): 0/2 to 10V, 0/4 to 20 mA, 0 to 2000 ppm |
| Relay (Optional) | Output 3: N.O. or N.C. rated 0.5A @ 125 V AC; 1A @ 24 V DC |
| Relay Durability | Mechanical: 5,000,000 operations minimum (at 36,000 operations/hr) |
| Relay Trip Point | 1000 ppm (factory set) |
| Power Consumption | <1W |
| Supply Voltage | 24 V AC/VDC ±20%; 50/60 Hz, 10.5 to 40 V DC maximum (Half-wave rectified) |
| Wiring Connections | 0.00232"2 (1.5 mm2) screw terminals |
| Calibration | Senseair ABC algorithm (Automatic Baseline Correction) |
| Coverage Area | 7500 sq. ft. maximum |
| Electrical | 100,000 operations minimum (under rated load, at 1,800 operations/hr) |
| Extended CO2 Ranges | Up to 10,000 ppm (factory set or programming cable required) |
| Operating Environment | Residential, commercial and industrial spaces |
| Operating Pressure | +1.6% per 0.145 psi (1 kPa) deviation from normal pressure (1 atmosphere = 14.7 psi (101.3 kPa)) |
| Operating RH | 0 to 85% RH Non-condensing |
| Self-Diagnostics | Complete function check, yellow LED; LCD error indication (display model only) |
| Sensing Method | Single beam Non-dispersive Infrared (NDIR) |
| Sensor Life | >15 years |
| Storage | Standard Versions: -40 to 158°F (-40 to 70°C) | LCD Versions: -4 to 122°F (-20 to 50°C) 0 to 85% RH Non-condensing |
| Warm-Up Time | <5 minutes (@ full specs 15 minutes) |
| Operating Temperature | 32°F to 122°F (0°C to 50°C) |
| Enclosure | ABS, Flammability Rating UL94-HB |
| Mounting Height | 4 to 6' off the floor |
| Product Dimensions (L x W x H) | 4.70 x 3.20 x 1.20" (119.4 x 81.3 x 30.5 mm) |
| Product Weight | 0.25 lbs (113 g) |
| Agency Approvals | EMC Directive 2014/30/EC, RoHS Directive 2011/65/EU & RoHS 3 Directive 2015/863/EU |
