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PDF TGS2611 Data sheet ( Hoja de datos )
| Número de pieza | TGS2611 | |
| Descripción | The detection of Methane | |
| Fabricantes | Figaro | |
| Logotipo |  |
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FIGARO
PRODUCT INFORMATION
TGS 2611 - for the detection of Methane
Features:
* Low power consumption
* High sensitivity to methane
* Long life and low cost
* Uses simple electrical circuit
Applications:
* Domestic gas alarms
* Portable gas detectors
* Gas leak detector for gas appliances
The sensing element is comprised of a metal oxide semiconductor layer formed
on an alumina substrate of a sensing chip together with an integrated heater.
In the presence of a detectable gas, the sensor's conductivity increases
depending on the gas concentration in the air. A simple electrical circuit can
convert the change in conductivity to an output signal which corresponds to the
gas concentration.
The TGS 2611 has high sensitivity and selectivity to methane gas. Due to its
low sensitivity to alcohol vapors (a typical interference gas in the domestic
environment), the sensor is ideal for domestic gas alarms.
Due to miniaturization of the sensing chip, TGS 2611 requires a heater current
of only 56mA and the device is housed in a standard TO-5 package.
The figure below represents typical sensitivity characteristics,
all data having been gathered at standard test conditions (see
reverse side of this sheet). The Y-axis is indicated as sensor
resistance ratio (Rs/Ro) which is defined as follows:
Rs = Sensor resistance in displayed gases at
various concentrations
Ro = Sensor resistance in 5000ppm of methane
The figure below represents typical temperature and humidity
dependency characteristics. Again, the Y-axis is indicated as
sensor resistance ratio (Rs/Ro), defined as follows:
Rs = Sensor resistance in 5000ppm of methane
at various temperatures/humidities
Ro = Sensor resistance in 5000ppm of methane
at 20°C and 65% R.H.
Sensitivity Characteristics:
Temperature/Humidity Dependency:
100 10
10 Air
35%RH
50%RH
65%RH
95%RH
1
Ethanol
Hydrogen
1 Iso-butane
Methane
Gas: 5000ppm methane
0.1
100
1000
10000
Gas concentration (ppm)
0.1
100000
-20 -10
0
10 20 30 40 50
Ambient temperature (˚C)
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.
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet TGS2611.PDF ] | |
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