Description
The MH- TD11 CH4 industrial laser methane gas sensor is a high-precision, miniaturized gas sensor (hereinafter referred to as the sensor) designed based on tunable laser absorption spectroscopy (TDLAS) technology. This sensor features excellent selectivity, small size, low power consumption, stable performance, long lifespan, and high sensitivity. It is easy to use and can directly replace sensors based on NDIR infrared or catalytic combustion principles, making it widely applicable in various locations where flammable and explosive gases are present.
Application
- Petroleum, chemical, and coal mining
- Gas leak detection in tunnels and various underground utility tunnels
- Natural gas pipeline inspection, biogas inspection
- Home gas leak monitoring
Features
- High resolution, high sensitivity, and fast response speed
- High selectivity; reacts only with methane gas.
- Resistant to moisture interference, non-toxic
- No zero drift, no calibration required during its service life.
- Miniaturization, low power consumption Digital communication interface
Specifications
| Item | Specification |
|---|---|
| Product Model | MH-TD11 CH4 |
| Measuring gas | Methane (CH₄) |
| Sensor type | laser |
| Operating voltage | 3.6V ~ 5.0V |
| Explosion-proof marking | Ex ia ⅡC T6 Ga；Ex db ⅡC T6 Gb |
| Operating current | Average ＜ 40 mA @5VDC 25℃
|
| Measurement range | 0-5 % VOL |
| Response time | T90 ＜ 15 s |
| Operating temperature | -40℃ to 70℃ |
| Operating humidity | 0 –95 % RH (non-condensing) |
| Working pressure | 86 kPa ~ 106 kPa |
| External dimensions | Φ40×59.5 mm |
| Indication error | ± 0.1 % VOL (0-1% VOL @ room temperature)
|
| Communication interface | UART-TTL (3.0V compatible with 5.0V) |
| Shell material | 304 stainless steel |
| Service life | ＞5 years |
* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.
Technical Support:
Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.
The sensors don't have sleeping mode. It can be set in program if needed.
All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.
The sensor has been fully tested (not calibrated) before leaving the factory, but the module will be calibrated before leaving the factory.
However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.
15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.
Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.
Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.
Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to sales@winsensor.com
Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.
