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Solid State Carbon Dioxide Sensor (CO2 Sensor)

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CO2-D1 Carbon Dioxide Sensor (CO2 Sensor) Schematic Diagram

CO2-D1 Carbon Dioxide Sensor (CO2 Sensor) PERFORMANCE
Sensitivity	mV/decade concentration change (0.5% to 5% CO2₎	6 to 10
Response time	t90 (s) for mV change (20°C)(0.5% to 5% CO2)	2-4 mins
Zero	E0 @ 5000ppm CO2	-30 to +30mV
Resolution	RMS noise (ppm equivalent) @ 5,000ppm CO2	100
Range	_{CO2 concentration}	0.5% to 90%
Linearity	see Figure 3	Logarithmic

CO2-D1 Carbon Dioxide Sensor (CO2 Sensor) LIFETIME
Zero drift	(mV)E0 change/day in lab air	±3
Sensitivity drift	mV/decade/month change in lab air, monthly test	< 1
Operating life	months until 80% original signal (12 month warranted)	< 12

CO2-D1 Carbon Dioxide Sensor (CO2 Sensor) ENVIRONMENTAL
Temperature range	°C	10 to 35
Pressure range	kPa	80 to 120
Humidity range	% rh continuous	15 to 95

CO2-D1 Carbon Dioxide Sensor (CO2 Sensor) KEY SPECIFICATIONS
Storage period	months @ 0 to 20°C (stored in original container)	6
Input	Impedance of op amp input	> 10⁸