Internal CO2 Sensor for Automotive Applications
The Telaire T6743 Internal CO2 Sensor is a nondispersive infrared (NDIR) CO2 sensor that implements a single channel diffusion sampling method for automotive HVAC applications, including automatic fresh air control and safety sensing for CO2 refrigerants.
Along with the patented ABC Logic™ lifetime calibration warranty, its low power consumption, compact design and simple product integration, make this an affordable gas sensing solution. All units are factory-calibrated to measure CO2 concentration levels up to 5,000 ppm.
- For safety - Measure and control in-cabin CO2 levels to prevent driver drowsiness.
- For energy savings - Reduce variations in heating and cooling in-cabin through demand control ventilation.
- Automotive HVAC - In-cabin air quality and comfort control
- ABC Logic™ - Lifetime calibration warranty
- Lin 2.0 output
- Low power consumption
- Compact design
- Versatile interface for simple product integration
- Factory-calibrated to measure CO2 concentration levels up to 5,000 ppm
- Adjustable firmware variables
- Custom packaging options
- Subject to commercial consideration customization of firmware, connector and enclosure is possible
|ABC Logic||Automatic Background Calibration – The algorithm that uses ambient air concentrations to adjust the sensor and compensate sensor long-term drift.
Adjustment cycle period is 12 – 192 hours of operation in active mode. Practical adjustment cycle depends on operating conditions.
|Measurement Range||Air Quality Control: 400 – 5,000 ppm CO2
Safety Alarm for Air Quality Control and CO2: 400 – 40,000 ppm CO2
|Output Range||0 – 65,000 ppm CO2|
|Measurement Period||Active Mode: 5 seconds
Low Power Mode: 5 minutes
Sleep Mode: 12 hours
Timing of these modes can be configured per customer requirements.
|Resolution and Repeatability||Internal Sensor Resolution: 1 ppm
Repeatability: 30 ppm at 1000 ppm (Typical)
|Accuracy in Active Mode||Range: 400 ppm to 5,000 ppm
±200 ppm or 10% of the reading, whichever is greater @ 0 to 50°C
Range: 5,000 ppm to 40,000 ppm (4%)
10% of the reading @ 0 to 50°C
|Temperature Dependence||Additional 0.5% of reading per °C or 5 PPM/C, whichever is greater outside the range 0 to 50°C|
|Pressure Dependence||0.135% of the reading per mm Hg|
|Response Time (90% of Step Change)||Active Mode: <40 seconds, dependent on test regime (Typical)|
|Warm-Up Time||First measurements in:
< 5 sec after power-up
< 2 minutes maximum accuracy in Active Mode
|Total Lifetime||130,000 hours, limited by microcontroller flash retention specification|
|Operational Lifetime||In Active Mode: 45,000 hours|
|Relative Humidity||0-95% non-condensing|
*Please see product datasheet for more details and specifications.