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Figaro - Carbon Dioxide Detection

Numéro de référence TGS4160
Description Carbon Dioxide Detection
Fabricant Figaro 
Logo Figaro 





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TGS4160 fiche technique
PRODUCT INFORMATION
TGS 4160 - for the detection of Carbon Dioxide
Features:
* High selectivity to CO2
* Compact size
* Low dependency on humidity
* Long life
Applications:
* Air quality control
* Fermentation process control
The TGS4160 is a hybrid sensor unit composed of a carbon dioxide sensitive
element and a thermistor. The CO2 sensitive element consists of a solid
electrolyte formed between two electrodes, together with a printed heater (Pt)
substrate. By monitoring the change in electromotive force (EMF) generated
between the two electrodes, it is possible to measure CO2 gas concentration.
Adsorbent (zeolite) is filled between the internal cover and the outer cover for
the purpose of reducing the influence of interference gases.
TGS4160 displays good long term stability and shows excellent durability
against the effects of high humidity through the application of innovative
technology in the sensor's electrode design.
The figure below represents typical sensitivity characteristics of
TGS4160. 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:
80
CO2
CO
EtOH
60
The figure below shows typical humidity dependency for an
energized sensor. 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:
430 70
400 60
370 EMF (350ppm CO2) 50
340 40
40
310 30
20
280 EMF (350ppm CO2 - 1000ppm CO2)
20
250 10
0
100
1000
Gas Concentration (ppm)
10000
220
0
20 40 60 80
Relative Humidity (%)
0
100
IMPORTANT NOTE: OPERATING CONDITIONS IN WHICH FIGARO SENSORS ARE USED WILL VARY WITH EACH CUSTOMER’S SPECIFIC APPLICATIONS. FIGARO STRONGLY
RECOMMENDS CONSULTING OUR TECHNICAL STAFF BEFORE DEPLOYING FIGARO SENSORS IN YOUR APPLICATION AND, IN PARTICULAR, WHEN CUSTOMER’S TARGET GASES
ARE NOT LISTED HEREIN. FIGARO CANNOT ASSUME ANY RESPONSIBILITY FOR ANY USE OF ITS SENSORS IN A PRODUCT OR APPLICATION FOR WHICH SENSOR HAS NOT BEEN
SPECIFICALLY TESTED BY FIGARO.

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