进口微型红外二氧化碳传感器模块s8技术资料
SenseAir ® S8 – Key technical specification

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              Item 
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             SenseAir® S8 
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             Possible functionality of other members in SenseAir® S8 family 
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              Target gas 
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             CO2 
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             Contact SenseAir for other gases availability 
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             Measurement range 
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             400 to 5000 ppm (Note 1), 
            Up to 10000ppm extended range (Note 2) 
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              Accuracy 
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             +-30ppm+-3% of reading  
            (Notes 3 and 4)  | 
            
             Sensor rated for California standard is planned. Please contact SenseAir for further information 
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              Response time 
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             2 minutes by 90% for diffusion sampling method model 
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             Operating temperature 
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             0 to 50C 
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             Sensors for extended temperature ranges -40 to +85C are under development 
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             Operating humidity 
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             0 to 95% RH non condensed 
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              Storage temperature 
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             -40 to + 70 C 
             | 
            
             Sensors for extended temperature ranges -40 to +85C are under development 
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              Dimensions (body) 
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             32.9*19.7*9.9 mm3 for #400010 
            33.7*19.7*9.9 mm3 for #400011  | 
            
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              Weight 
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             TBD 
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              Power supply   
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             5V +-5% unprotected against surges and reverse connection 
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              Power consumption 
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             300 mA peak, 
            30 mA average  | 
            
             Low power versions are planned. Contact SenseAir for details and schedule. 
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              Sensor life 
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             15 years in normal commercial environments with ABC on (Note 3) 
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             Compliance with 
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             CE conformity declaration not required because it’s not a product directed to end user. Our customers have to make this declaration for their entire product. 
            RoHS directive 2002/95/EG 
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             SenseAir is going to perform immunity and emission tests anyway to confirm compliance of the module in immunity and emission 
            Other tests / approvals are available on request, contact SenseAir 
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              Item 
             | 
            
             SenseAir® S8 
             | 
            
             Possible functionality of other members in SenseAir® S8 family 
             | 
        
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              Serial communication 
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             UART, Modbus protocol (Note 5) 
            Direction control pin for direct connection to RS485 receiver integrated circuit. 
             | 
            
             FastStream protocol  
            delivering dedicated measurement data with dedicated time intervals is under development  | 
        
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             Alarm output, Open Collector 
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             Normally Conducting after power up,  
            Non conducting (high level) at > 1000 ppm,  
            return to conducting (low level) at < 800 ppm 
            Non Conducting (high level) at error detected 
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             Contact SenseAir for other optional functionality of OC and threshold configuration. 
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             PWM output, 1 kHz 
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             0 to 100% duty cycle for 0 to 2000 ppm  
            3.3V push-pull CMOS output, unprotected 
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             Contact SenseAir for other optional output ranges. 
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             Forced calibration 
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             Background calibration in fresh air (400 ppm) by forcing bCal input Low for about 4 sec. 
            Keeping bCal input low for more than 16 sec forces sensor to perform zero (nitrogen) calibration 
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