Datasheet

PRODUCT INFORMATION
Basic Measuring Circuit:
Specications:
Structure and Dimensions:
The diagram at the right shows the basic measuring circuit of
TGS5342. The sensor generates a minute electric current which is
converted into sensor output voltage (Vout) by an op-amp/resistor
(R1) combination.
Figaro recommends the following electrical parts:
R1 : 1.5MΩ
C1 : 1µF
IC : AD708
NOTE: When voltage is applied to the sensor output terminal, the
sensor may be damaged. Voltage applied to the sensor should be
strictly limited to less than ±10mV. An additional resistor or FET is
required to prevent polarization of the sensor when Vc is off.
REV: 10/12
TGS5342
Working
Counter
-
+
R1
C1
Vout
1.5MΩ
1µF
IC
Basic measuring circuit of TGS5342
(*) represents sensor output in air under operating
conditions
Item Specication
Model number TGS5342
Target gases Carbon monoxide
Typical detection range 0 ~ 10,000ppm
Output current in CO 0.7~1.4nA/ppm
Baseline offset <±10ppm equivalent
Operating temperature
-10˚C ~ +60˚C (continuous)
-40˚C ~ +70˚C (intermittent)
Operating humidity 5 ~ 99%RH (no condensation)
Response time (T90) within 30 seconds
Storage conditions
-10˚C ~ +60˚C (continuous)
-40˚C ~ +70˚C (intermittent)
Weight approx. 7g
Standard test conditions 20±2˚C, 40±10%RH
Top view
Bottom view
Side view
Working electrode
Counter electrode
Insulation tube
ø14.1±0.6
27.9±1.0
ø8.5±0.3
1.25±0.25
28.5±1.5
8.3±0.1
8.3±0.1
4.15±0.8
4.15±0.8
7.5±0.4
7.5±0.4
90±4˚
90±4˚
20.9±-0.05
20.9±0.05
0.8±0.05
0.8±0.05
7.5±0.1
4.0±0.1
unit: mm
4.0±0.1
0.8±0.05
FIGARO ENGINEERING INC.
1-5-11 Senba-nishi
Mino, Osaka 562-8505 JAPAN
Tel: [phone]
Fax: [phone]
email: garo@garo.co.jp
www.garo.co.jp