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Products

CH4 Gas Sensor

TX911-A Laser Methane Gas Sensor

For the CH4 detection

Application:

Household gas leak detection

Product characteristics:

Resistant to water vapor, non-toxic
Only detects methane gas, strong resistance to gas interference
Calibration-free, long service life
High detection accuracy, resolution up to 0.1%LEL


1. Description


TX911-A Laser Methane Gas Sensor is a household methane sensor. It is a high-performance sensor that combines mature laser gas absorption detection technology with stable optical path design and circuit design.


2. Appearance and dimension



3.Technical  Specifications


Product modelTX911-A
Testing gasMethane
Supply voltageDC(3.2-3.6) V
Working current<300mA
Interface level3.0V
Measurement range0-100% LEL
Measurement error±3% LEL @25℃
Output signal(UART)(TTL level 3.0V)
Warm-up time15S
Response timeT90<15S
Operating temperature -10℃~50℃
Operating humidity0~95% RH(No condensation)
Working pressure80kPa~116kPa
Storage temperature -20~60℃
dimension76.5mm*21mm*14.1mm
Weight<20g
Life>10 years



4.Precautions for use:


 During the welding, installation, and use of the sensor, the optical cavity should be prevented from being subjected to pressure in any direction.

 If the sensor needs to be placed in a small space, the space should be well ventilated, especially the two diffusion windows should be in a well ventilated position.

 The sensor should be kept away from heat sources.

 It is forbidden to wire or insulate the bottom of the sensor to prevent the bottom pad of the sensor from short-circuiting.

 Do not use the sensor for a long time in an environment with high dust density. If the sensor is dirty, it needs to be cleaned.

 To ensure that the sensor can work properly, the power supply voltage must be kept within the specified range. If it is not within this range, it may cause sensor failure, sensor output concentration beyond the error range, or sensor failure to work properly.

 When using a soldering iron for soldering, the temperature setting must be (350±5)℃ and the soldering time must be less than 3S.


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