Figaro TGS2610-C00 TGS 2610 Gas Sensor For LP Gases Alcohol, Methane, Propane, Iso-Butane (Ø x H) 9.2 mm x 7.8 mm TGS2610-C00 Scheda Tecnica

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TECHNICAL INFORMATION FOR TGS2610

2-2   Temperature and humidity dependency

Figure 6 shows the temperature and humidity
dependency of TGS2610.  The Y-axis shows the ratio
of sensor resistance in 1800ppm of iso-butane under
various atmospheric conditions (Rs) to the sensor
resistance in 1800ppm of iso-butane at 20˚C/65%RH
(Ro).

0.1

1

10

-20

-10

0

10

20

30

40

50

35%
50%
65%
100%

Rs/Ro

Ambient temperature (˚C)

Gas: 1800ppm Iso-butane

RH%:

0.1

1

10

100

1000

10000

-10˚C
20˚C/65%RH
40˚C/85%RH

Rs/Ro

Gas concentration (ppm)

Fig. 6 - Temperature and humidity dependency (Rs/Ro)

Fig. 7 - Sensor resistance

under various ambient conditions

Table 1 - Temperature and humidity dependency

(typical values of Rs/Ro for Fig. 6)

Table 1 shows a table of values of sensor resistance
ratio (Rs/Ro) under the same conditions as those
used to generate Figure 6.

Figure 7 shows the sensitivity curve for TGS2610 to
iso-butane under several ambient conditions. While
temperature may have a large influence on absolute
Rs values, this chart illustrates the fact that effect on
the slope of sensor resistance ratio (Rs/Ro) is not
significant. As a result, the effects of temperature on
the sensor can easily be compensated.

For economical circuit design, a thermistor can be
incorporated to compensate for temperature (for
additional information on temperature compensation in
circuit designs, please refer to the Technical Advisory
‘Technical Information on Usage of TGS Sensors for Toxic
and Explosive Gas Leak Detectors’).

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