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 Data Sheet
Product codes
TGS2610-C00
Revised 03/06
11
TECHNICAL INFORMATION FOR TGS2610
Fig. 21 - Test procedure for heater durability
Fig. 22 - Short-term effect of V
H
on R
H
Fig. 20 - Effect of air flow on TGS2610-C
3-5 Effect of air flow
Figure 20 shows how the sensor signal (V
RL
) is
affected by air flow. The test procedure involves
situating the sensor in an air stream of 3.1 meters per
second, with the air flow vertical/horizontal to the
flameproof stainless steel double gauze of the
sensor’s housing.
situating the sensor in an air stream of 3.1 meters per
second, with the air flow vertical/horizontal to the
flameproof stainless steel double gauze of the
sensor’s housing.
The decrease in sensor signal shown in Figure 20
resulted from the decrease in sensor element
temperature caused by the air flow. As a result, direct
air flow on the sensor should be avoided.
resulted from the decrease in sensor element
temperature caused by the air flow. As a result, direct
air flow on the sensor should be avoided.
3-6 Heater resistance durability
Figure 21 illustrates the procedure for testing the
effects of excess voltage applied to the heater. Heater
resistance was measured while the heater was
unpowered and at room temperature.
effects of excess voltage applied to the heater. Heater
resistance was measured while the heater was
unpowered and at room temperature.
The results of this test are shown in Figure 22 which
shows the change in resistance of the heater when
various heater voltages (rather than the standard
5.0V) are applied in the absence of gases.
shows the change in resistance of the heater when
various heater voltages (rather than the standard
5.0V) are applied in the absence of gases.
As this section demonstrates, the heater shows good
durability against increased heater voltage.
However, since excessive heater voltage will cause
the sensor’s heater resistance to drift upwards,
excessive heater voltage should still be avoided.
durability against increased heater voltage.
However, since excessive heater voltage will cause
the sensor’s heater resistance to drift upwards,
excessive heater voltage should still be avoided.
12
10
8
6
4
2
0
0.6
0.7
0.8
0.9
1.0
1.1
Time (min.)
3.1 m/s air flow vertical to
double gauze
V
RL
(V)
12
10
8
6
4
2
0
0.6
0.7
0.8
0.9
1.0
1.1
Time (min.)
3.1 m/s air flow horizontal
to double gauze
V
RL
(V)
V
C
=V
H
=5V, R
L
=10k
Ω
V
C
=V
H
=5V, R
L
=10k
Ω
= 1.11
Rs with air flow of 3.1m/s
Rs without air flow
Rs without air flow
= 1.12
Rs with air flow of 3.1m/s
Rs without air flow
Rs without air flow
5V
6V
7V
8V
9V
10V
Test run 1 2 3 4 5 6 7 8
: R
H
is measured
10min.
11V
0
50
100
150
200
250
300
350
400
1
2
3
4
5
6
7
8
Heater resistance (
Ω
)
Test run