Senseair S8 5% Miniature CO2 sensor module with NDIR technique Product Specification
●Target gas: Carbon dioxide(CO2)
●Operating principle: Non-dispersive infrared (NDIR)
●Measurement range: 0.04-5%vlCO2(Note 1)
●Measurement interval: 2 seconds
●Accuracy: ±200ppm±10% of reading(Notes2and 3)
●Pressure dependence: +1.6% reading per kPa deviation from normal pressure
●Response time: 2 minutes by 90%
●Operating temperature : 5-50℃
●Operating humidity: 0-85% RH non condensed
●Storage temperature: -40-70℃
●Dimensions: 33.9 x 19.8 x 8.7 mm (max dimensions)
●Weight: <8 grams
●Power supply: 4.5-5.25 V unprotected against surges and reverse connection
●Power consumption: 300 mApeak30mAaverage
●Life expectancy: 15 years in normal commercial environments
●Serial communication: UART, Modbus protocol (Note4)Direction control pin for direct connection to RS485 receiver integrated circuit.
●Alarm output, open collector: 8500/6500 ppm Normally conducting max 100mA Transistor open at CO2 High,OR Power Low, OR at Sensor failure
●PWM output 1 kHz:
■0-100% duty cycle for 0-50000 ppm
■3.3 V push-pull CMOS output unprotected
●Maintenance: Maintenance-free for normal indoor applications with Senseair ABC ON.
●Note 1: Sensor is designed to measure in the range 0.04-5%with specified in the table accuracy Exposure to concentrations below 400 ppm may result in incorrect operation of ABC algorithm, and shall be avoided for model with ABC ON.
●Note 2: In normal lAQ applications. Accuracy is defined after minimum one ABC period (see table 4) of continuous operation with ABC ON. Some industrial applications do require maintenance.
●Note 3: Accuracy is specified over operating temperature range.Specification is referenced to certified calibration mixtures. Uncertainty of calibration gas mixtures(+1% currently) is to be added to the specified accuracy for absolute measurements.
●Note 4: See specification TDE2067 Modbus on S8 Resolution of serial output is 10 ppm/bit.
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2022/4/29 |
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Rev 15 |
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PSP0113 |
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1.7 MB |
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