Figaro TGS2442-B00 TGS 2442 Gas Sensor For Carbon Monoxide Carbon monoxide (Ø x H) 9.2 mm x 12.7 mm TGS2442-B00 Data Sheet
Product codes
TGS2442-B00
Revised 07/07
1
TECHNICAL INFORMATION FOR TGS2442
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.
Basic Information and Specifications Page
Features..................................................................................................2
Applications...............................................................................................2
Structure...........................................................................................2
Basic Measuring Circuit...........................................................................2
Circuit & Operating Conditions...............................................................3
Mechanical Strength..............................................................................3
Dimensions...................................................................................................3
Operation Principle......................................................................................................4
Typical Sensitivity Characteristics
Typical 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
See also Technical Brochure “Technical Information on Usage of TGS Gas Sensors
for Explosive/Toxic Gas Alarming”.
an ISO9001/14001 company
IMPORTANT NOTE: OPERATING CONDITIONS IN WHICH FIGARO SENSORS ARE USED WILL VARY
WITH EACH CUSTOMER’S SPECIFIC APPLICATIONS. FIGARO STRONGLY RECOMMENDS CONSULT-
ING 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.
TGS2442 is a UL recognized component in accordance with the
requirements of UL2034. Please note that component recognition test-
ing has confirmed long term stability in 15ppm of carbon monoxide; other
characteristics shown in this brochure have not been confirmed by UL as
part of component recognition.