TGS4161 Datasheet | Figaro

.. PRODUCT INFORMATION Features : TGS 4161 - for the detection of Carbon Dioxide Applications: - Indoor air quality control - CO2 monitors - High selectivity to CO2 - pact size - Low dependency on humidity - Long life and low cost - Low power consumption TGS4161 is a new solid electrolyte CO2 sensor which offers miniaturization and low power consumption. A range of 350~10,000ppm of carbon dioxide can be detected by TGS4161, making it ideal for indoor air control applications. The CO2 sensitive element consists of a solid electrolyte formed between two electrodes, together with a printed heater (RuO2) substrate. By monitoring the change in electromotive force (EMF) generated between the two electrodes, it is possible to measure CO2 gas concentration. The top of the sensor cap contains adsorbent (zeolite) for the purpose of reducing the influence of interference gases. TGS4161 exhibits a linear relationship between ∆EMF and CO2 gas concentration on a logarithmic scale. The sensor displays good long term stability and shows excellent durability against the effects of high humidity. The figure below represents typical sensitivity characteristics of TGS4161. The Y-axis is indicated as ∆EMF which is defined as follows: ∆EMF=EMF1 - EMF2 where EMF1=EMF in 350 ppm CO2 EMF2=EMF in listed gas concentration Sensitivity Characteristics: The figure below shows typical humidity dependency of TGS4161. Again, the Y-axis is indicated as ∆EMF which is defined as follows: ∆EMF=EMF1 - EMF2 where EMF1=EMF in 350 ppm CO2 EMF2=EMF in 1000ppm CO2 Humidity Dependency: 100 80 60 ∆EMF (mV) 40 20 0 10 100 1000 Gas Concentration (ppm) 10000 CO2 CO Ethanol H2 350 100 325 EMF (350ppm CO2) EMF (mV) 300 75 ∆EMF (mV) 50 275 ∆EMF (350ppm CO2 - 1000ppm CO2)...