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PRODUCT INFORMATION
TGS 2610 - for the detection of LP Gas
Features:
* Low power consumption
* High sensitivity to LP and its component
gases (e.g. propane and butane)
* Long life and low cost
* Uses simple electrical circuit
Applications:
* Residential LP leak detectors and alarms
* Portable LP detectors
* LP gas and vapor detection
TGS2610 is a semiconductor type gas sensor which combines very high
sensitivity to LP gas with low power consumption and long life. Due to
miniaturization of its sensing chip, TGS2610 requires a heater current of only
56mA and the device is housed in a standard TO-5 package.
The TGS2610 is available in two different models which have different external
housings but identical sensitivity to LP gas. Both models are able to satisfy the
requirements of performance standards such as UL1484 and EN50194.
TGS2610-C00 possesses small size and quick gas response, making it suitable
for gas leakage checkers.
TGS2610-D00 uses filter material in its housing which eliminates the influence
of interference gases such as alcohol, resulting in highly selective response
to LP 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 resistance ratio (Rs/Ro) which is defined as follows:
Rs = Sensor resistance in displayed gases at various concentrations
Ro = Sensor resistance in 1800ppm of iso-butane
TGS2610-C00 Sensitivity Characteristics:
100
TGS2610-D00 Sensitivity Characteristics:
100
10
Rs/Ro
Air 10
Rs/Ro
Air
Ethanol
1
Ethanol
1
Hydrogen
Hydrogen
Methane
Methane
Iso-butane
Iso-butane/Propane
Propane
0.1
100
1000
10000
Gas concentration (ppm)
100000
0.1
100
1000
10000
Gas concentration (ppm)
100000
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.

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Basic Measuring Circuit:
The sensor requires two voltage inputs:
heater voltage (VH) and circuit voltage
(VC). The heater voltage (VH) is applied
to the integrated heater in order to
maintain the sensing element at a specific
temperature which is optimal for sensing.
Circuit voltage (VC) is applied to allow
measurement of voltage (VRL) across a
load resistor (RL) which is connected in
series with the sensor.
A common power supply circuit can
be used for both VC and VH to fulfill the
sensor's electrical requirements. The
value of the load resistor (RL) should be
chosen to optimize the alarm threshold
value, keeping power dissipation (PS)
of the semiconductor below a limit of
15mW. Power dissipation (PS) will be
highest when the value of Rs is equal
to RL on exposure to gas.
Specifications:
Model number
TGS 2610
Sensing element type
D1
Standard package
TO-5 metal can
Target gases
Butane, LP gas
Typical detection range
500 ~ 10,000 ppm
Standard circuit
conditions
Heater Voltage
Circuit voltage
Load resistance
VH 5.0±0.2V DC/AC
VC 5.0±0.2V DC/AC Ps 15mW
RL Variable
0.45kmin.
Heater resistance RH approx. 59at room temp.
Electrical
characteristics
under standard test
conditions
Heater current
Heater power
consumption
IH
PH
Sensor resistance Rs
Sensitivity
(change ratio of Rs)
Test gas conditions
Standard test
conditions
Circuit conditions
Conditioning period
before test
56 ± 5mA
280mW
VH = 5.0V DC
0.68~6.8k
in 1800ppm iso-butane
0.56 ± 0.06
Rs (3000ppm)
Rs (1000ppm)
Iso-butane in air
at 20±2˚C, 65±5%RH
VC = 5.0±0.01V DC
VH = 5.0±0.05V DC
7 days
Structure and Dimensions:
TGS2610-C00
TGS2610-D00
Top view
ø9.2±0.2
ø8.1±0.2
Sensing
element
7.8±0.5
Side view
10.0±1.0
ø9.2±0.2
ø8.1±0.2
12.4±1.0
10.0±1.0
ø0.55±0.05
ø0.55±0.05
90˚
4
3
3.6±0.1
Bottom view
1
2
3.6±0.1
ø5.1
90˚
4
3
3.6±0.1
1
2
3.6±0.1
ø5.1
The value of power dissipation (PS) can
be calculated by utilizing the following
formula:
PS =
(VC - VRL)2
RS
Sensor resistance (Rs) is calculated with
a measured value of VRL by using the
following formula:
RS =
VC - VRL
VRL
x RL
For information on warranty, please refer to Standard Terms and Conditions of Sale of
Figaro USA Inc. All sensor characteristics shown in this brochure represent typical
characteristics.Actual characteristics vary from sensor to sensor. The only characteristics
warranted are those in the Specification table above.
REV: 02/05
Pin connection:
1: Heater
2: Sensor electrode (-)
3: Sensor electrode (+)
4: Heater
u/m:mm
FIGARO USA, INC.
121 S. Wilke Rd. Suite 300
Arlington Heights, Illinois 60005
Phone: (847)-832-1701
Fax: (847)-832-1705
email: figarousa@figarosensor.com