TGS813 Combustible Gas Sensors
Figaro TGS 8-series sensors are a type of sintered bulk metal oxide semiconductor which offer low cost, long life, and good sensitivity to target gases while utilizing a simple electrical circuit. The TGS813 displays high selectivity and sensitivity to LP Gas and methane.
Features
* General purpose sensor for a wide range of combustible gases
* High sensitivity to LP gas and methane
* Low cost
* Long life
* Uses simple electrical circuit
Applications
* Domestic gas leak detectors and alarms
* Recreational vehicle gas leak detectors
* Portable gas detectors
This sensor is a sintered bulk semiconductor composed mainly of tin dioxide (SnO2 ). The semiconductor material and electrodes are formed on an alumina ceramic tube. A heater coil, made of 60 micron diameter wire, is located inside the ceramic tube. Lead wires from the sensor electrodes are a gold alloy of 80 microns in diameter. Heater and lead wires are spotwelded to the sensor pins which have been arranged to fit a 7-pin miniature tube socket.
The sensor base and cover are made of Nylon 66, conforming to UL 94HB (Authorized Material Standard). The deformation temperature for this material is in excess of 240˚C. The upper and lower openings in the sensor case are covered with a flameproof double layer of 100 mesh stainless steel gauze (SUS316). Independent tests confirm that this mesh will prevent a spark produced inside the flameproof cover from igniting an explosive 2:1 mixture of hydrogen/oxygen.
Circuit & operating conditions
The ratings shown below should be maintained at all times to insure stable sensor performance:
Specifications