High selectivity to methane gas Good durability For residential gas alarms - Figaro Engineering - #1

Jfigaro

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

tgs2611 is a semiconductor type gas sensor which combines very high sensitivity to methane gas with low power consumption and long life. Due to miniaturization of its sensing chip, TGS2611 requires a heater current of only 56mA and the device is housed in a standard TO-5 package.

The TGS2611 is available in two different models which have different external housings but identical sensitivity to methane gas. Both models are able to satisfy the requirements of performance standards such as UL1484 and EN50194.

tgs2611-c00 possesses small size and quick gas response, making it suitable for gas leakage checkers.

tgs2611-e00 uses filter material in its housing which eliminates the influence of interference gases such as alcohol, resulting in highly selective response to methane gas. This feature makes the sensor ideal for residential gas leakage detectors which require durability and resistance against interference gas.

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 ressstance ratoo (Rs/Ro) which is defined as follows:

Rs = Sensor resistance in displayed gases at various concentrations

Ro = Sensor resistance in 5000ppm of methane

tgs2611-c00 sensitivity characteristics:

tgs2611-e00 sensitivity characteristics:

100

100

10

10

o OL

o OL

0.1

0.1

100

1000

10000

100000

100

1000

10000

100000

Gas concentration (ppm)

Gas concentration (ppm)

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.