Datasheet

PRODUCT INFORMATION
PRODUCT INFORMATION
Applications:
Features:
TGS 2600 - for the detection of Air Contaminants
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 fresh air
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 fresh air
at various temperatures/humidities
Ro = Sensor resistance in fresh air
at 20°C and 65% R.H.
* Air cleaners
* Ventilation control
* Air quality monitors
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 2600 has high sensitivity to low concentrations of gaseous air
contaminants such as hydrogen and carbon monoxide which exist in cigarette
smoke. The sensor can detect hydrogen at a level of several ppm. Figaro also
offers a microprocessor (FIC02667) which contains special software for handling
the sensor's signal for appliance control applications.
Due to miniaturization of the sensing chip, TGS 2600 requires a heater current
of only 42mA and the device is housed in a standard TO-5 package.
* Low power consumption
* High sensitivity to gaseous air
contaminants
* Long life and low cost
* Uses simple electrical circuit
* Small size
Temperature/Humidity Dependency:
Sensitivity Characteristics:
0.01
0.1
1
10
1 10 100
Rs/Ro
Gas Concentration (ppm)
Air
Methane
Carbon monoxide
Iso-butane
Ethanol
Hydrogen
0.1
1
10
-20 -10 0 10 20 30 40 50
Rs/Ro
Ambient Temperature (˚C)
R.H.
35%
65%
95%
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.