JIANGSU ANTAI · MINING SAFETY
GJJ100C
Laser Methane Sensor
Laser absorption measurement with temperature and pressure compensation for continuous methane monitoring in underground coal mines.
TECHNICAL OVERVIEW
Key specifications
| Measurement range | 0–100% CH₄ |
|---|---|
| Response time | ≤25 s |
| Rated power supply | 18 V DC |
| Communication | RS485 and wireless |
| Weight | Approximately 1.5 kg |
18 V DC rated supply; audible and visual alarms; infrared remote adjustment; approximately 1.5 kg.
Catalogue MA reference: MFB250186. Confirm the current certificate, scope and selected configuration before ordering.
APPLICATION & SELECTION
Laser-based methane monitoring underground
The GJJ100C uses laser absorption to measure methane over a 0–100% CH₄ range. The catalogue describes temperature and pressure compensation, audible and visual alarms, and both RS485 and wireless communication. It supports continuous methane monitoring in underground coal mine applications.
What to confirm before ordering
Confirm the measurement range, 18 V DC supply and the required communication interface. Review wireless coverage and system compatibility for the actual installation. Obtain current certification and the model-specific connection documentation before procurement.
Request model-specific documentation
Email antaiair@163.com with the model, gases to be monitored, machinery, supply voltage, interfaces and expected quantity. Ask for the current datasheet, applicable certificates and product support information.
Specifications are reproduced from the supplied Chinese catalogue. Installation and maintenance must follow current manufacturer documentation and the requirements of the intended site.