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PDF TGS832-A00 Data sheet ( Hoja de datos )
| Número de pieza | TGS832-A00 | |
| Descripción | Sensor | |
| Fabricantes | Figaro | |
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PRODUCT INFORMATION
TGS 832-A00 - for the detection of Chlorofluorocarbons
Features:
* High sensitivity to refrigerant gases
* Quick response
* Long term stability
* Uses simple electrical circuit
Applications:
* Portable and fixed installation refrigerant
leak detectors
The sensing element of Figaro gas sensors is a tin dioxide (SnO2) semiconductor
which has low conductivity in clean air. 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 832-A00 has high sensitivity to refrigerant gases commonly used in air
conditioning systems and refrigerators such as R-134a, R-404a, R-407c, and R-410.
TGS832-A00 has a gas diffusion hole in the sensor cap as well as in the sensor
base. By using the sensor with a suction pump, response speed can be accelerated,
making it suitable for portable gas leakage checkers.
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 of displayed gases at
various concentrations
Ro = Sensor resistance at 100ppm of R-134a
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 at 100ppm of R-134a
at various temperatures/humidities
Ro = Sensor resistance at 100ppm of R-134a
at 20°C and 65% R.H.
Sensitivity Characteristics:
10
Air
R-407c
Ethanol
R-134a
R-410a
R-404a
R-22
Temperature/Humidity Dependency:
2.0
1
Rs/Ro
1.2
Rs1/.0Ro
40% R.H.
65% R.H.
100% R.H.
0.1
10
100 500
Concentration (ppm)
1000
0.5
-10
0
10 20 30 40 50 60
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 | ||
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