TGS2442 Datasheet, PDF (3/25 Pages) List of Unclassifed Manufacturers – Detection of Carbon Monoxide

TECHNICAL INFORMATION FOR TGS2442
Revised 03/00
Technical Information for Carbon Monoxide Sensors
The Figaro TGS2442 sensor is a new type
thick film metal oxide semiconductor,
screen printed sensor which offers
miniaturization and utilizes pulse heating
for achieving low power consumption.
The TGS2442 displays high selectivity to
carbon monoxide together with improved
humidity dependency and durability.
Specifications
Page
Features..................................................................................................2
Applications...............................................................................................2
Structure...........................................................................................2
Basic Measuring Circuit...........................................................................2
Circuit & Operating Conditions...............................................................3
Mechanical Strength..............................................................................3
Dimensions...................................................................................................3
Operation Principle.........................................................................................................4
Basic Sensitivity Characteristics
Sensitivity to Various Gases............................................................5
Temperature and Humidity Dependency.............................................5
Gas Response Pattern.................................................................................6
Heater Voltage Dependency...........................................................................6
Initial Action.........................................................................................7
Influence of Unenergized Storage...............................................................7
Reliability
Interference Gas Test......................................................................................8
Long-Term Stability................................................................................9
Corrosion Test...........................................................................................9
Variable Ambient Temperature Test...............................................................9
Humidity Test.............................................................................................10
Stability Tests...................................................................................................10
Circuit Examples
Basic Circuit Including Trouble Detection...............................................11
Calibration and Temperature Compensation.............................................11
Marking and Packaging..................................................................................................13
See also Technical Brochure “Technical Information on Usage of TGS Gas Sensors
for Explosive/Toxic Gas Alarming”.
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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