Products
CH4 Gas Sensor
Detection of methane, propane, hydrocarbons and other gases
Application:
Atmospheric pressure is 86kPa~106kPaProduct characteristics:
High sensitivity, high resolution, fast response timeDescription
TX721-A1B is a type of gas sensor developed based on non-dispersive infrared spectroscopy (NDIR) technology. It can detect gases such as methane and propane hydrocarbons. It adopts a diffuse air intake method and is suitable for gas detection and early warning in the industrial field. At the same time, it meets the requirements of intrinsically safe explosion-proof certification. The internal temperature/humidity compensation algorithm is added to adapt to different temperature environments. It has the characteristics of high sensitivity, anti-poisoning, long life, and use in hypoxic environments.
Specifications
Test parameters | Technical Index |
Operating voltage | DC3.0~5.5V |
Operating voltage | Average current<1.0mA, peak current<60mA |
Average power consumption | |
Output format | Figure, UART |
Operating temperature | -20-60 ℃, expandable temperature -40-70 ℃ |
Operating humidity | 0-95% RH (no condensation) |
Storage temperature | 0-40 ℃ (recommended temperature) |
Operating pressure | 800～1200mbar |
Weight | ≤10g |
Weight | φ20*16.6mm |
Service life | 5 years (in a clean room temperature environment) |
Optical coating | High reflection film |
Detection gas | Methane, CH4, propane, C3H8, carbon dioxide, CO2, etc Methane 0-5.0% Vol (0-100% LEL) Methane 0-100% Vol (optional) Propane 0-2.2% vol (0-100% LEL) Carbon dioxide 0-100% vol (optional) |
Resolution | Methane 50ppm Propane 20ppm Carbon dioxide 10ppm |
Warm-up time | ≤5s |
Response time | T90≤10s |
Repeatability | ± 1% full range or ± 2% indication |
Linear accuracy | ± 3% full range or ± 5% indication |
Humidity characteristics | Relative to 50% RH reading deviation: ± 2% full range or ± 15% indication |
Temperature characteristics | Relative to 25 ℃ reading deviation: ± 2% of the full range or ± 10% of the indication within the range of ‒ 20 ° C to 50 ° C; ± 4% of full range or ± 20% of indication in other operating temperature range |
Long-term stability | Monthly drift ± 2% of full range or ± 5% of indication |
Measurement interval | One sampling point per second (1Hz) |
Serial port baud rate | 9600,19200,38400,57600 (default) |
Explosion-proof level | Intrinsic safety ia (ExiaICT4Ga) |
Certification standard | GB/T3836.4-2021 |
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