Johnson Controls offers carbon dioxide (CO2) and temperature transmitters for measuring and transmitting CO2 levels, ranging from 0 to 2,000 parts per million (ppm), and temperatures, ranging from 23 to 131°F (-5 to 55°C) within HVAC CO2 and temperature applications.
Specific HVAC CO2 applications include Demand Control Ventilation (DCV), fresh air and Indoor Air Quality (IAQ), and rooftop air handling Economizer controls systems.
These compact, wall-mounted devices output 0 to 5 V or 0 to 10 V (default) signals with analog temperature outputs. These transmitters are designed to work connected to the Metasys® system or as part of any integrated Building Automation System (BAS).
An optional display window is available for applications that require constant display of the measured CO2 level and temperature.
These new CO2 and temperature transmitters are easy to install and require no maintenance or field calibration.
| Features | Benefits |
|---|---|
| Energy Savings from DCV Strategies | Offer potential for 10 to 70% energy savings. |
| Second-Generation CARBOCAP® Single-Beam, Dual-Wavelength Design | Provides superior performance compared to other technologies. |
| Second-Generation CARBOCAP Silicon, Micro-Machined Construction | Provides reliable CO2 measurement in room environments. |
| Digital Temperature Sensor | Provides multiple functions in a single device, eliminating the need to install multiple devices. |
| Calibration Reliability | Offers 5 years of reliable calibration. |
| Field Calibration Port | Allows device calibration after installation. |
| Stable Infrared Reference | Compensates for light-source drift. |