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.
Features
- 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
Specifications
| 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.
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