The JJB10 laser methane detection and alarm instrument is an intelligent device specifically designed to meet the monitoring requirements of coal mines. Utilizing advanced laser absorption spectroscopy technology, it is primarily used for the continuous detection of methane gas concentrations in hazardous environments with risks of methane and coal dust explosions, such as mining and excavation faces and return air roadways.
Product Advantage
1. Laser detection without sensor poisoning
Adopts TDLAS laser spectrum technology. No catalyst poisoning, zero drift, and stable readings against water vapor and mixed gases.
2. Safe non-contact remote detection
Long-distance aiming measurement avoids close operation at high roofs, corners and dangerous zones, improving inspection safety.
3. Fast response & high efficiency
Instant stable readings without gas diffusion waiting, suitable for rapid multi-point underground patrol.
4. Long service life & low maintenance
Laser sensor lifespan over 5 years, requiring fewer calibrations and no frequent probe replacement.
5. Strong anti-interference & high accuracy
Immune to CO, ethane, coal dust and humidity, ensuring compliant and reliable detection data.
6. Durable for harsh mine conditions
Intrinsically safe explosion-proof design with MA certification, IP65 dustproof and waterproof, drop-resistant structure.
7. Long battery life & easy operation
20+ hours continuous working time, colorful display, sound-light alarm, one-touch calibration and data storage.
Technical Parameters
Item | Specification |
Model | JJB10 |
Detected Gas | Methane (CH4) |
Detection Principle | TDLAS Laser Absorption Spectroscopy |
Measuring Range | 0.00 ~ 10.0%CH4 |
Resolution | 0.01%CH4 |
Basic Error | 0.00~1.00% + 0.06%CH4 |
T90 Response Time | ≤25 s |
Alarm Mode | Sound, light &vibration alarm |
Alarm Setpoint | Adjustable 0.50~2.50%CH4(Default: 1.00%CH4) |
Alarm Volume | ≥75 dB (at 1m distance) |
Display | LCD screen |
Operating Temperature | 0℃ ~ 40℃ |
Storage Temperature | -40℃ ~ 60℃ |
Relative Humidity | ≤98%RH (Non-condensing) |
Working Pressure | 80 ~ 116 kPa |
Explosion-proof Mark | Exib I Mb |
Protection Grade | IP65 |
Power Supply | 3.7V Lithium Battery, 2000 mAh |
Continuous Working Time | ≥10 h |
Dimension | 132 × 74 × 36.5 mm |
Weight | 310 g |
Housing Material | Anti-static ABS+PC |
Sensor Service Life | Approx. 1 year |
Product Uses
1. Routine underground patrol inspection: Regular methane measurement at working faces, return airways, upper corners and electrical chambers.
2. Remote detection for dangerous positions: Non-contact measurement at high roadway roofs, sealed pipe outlets and dead gas accumulation zones inaccessible for workers.
3. Special underground operations: Gas inspection before and after roadway connection, seal opening, ventilation restoration and blasting operation.
4. High-gas mine monitoring: Long-term detection for gas drainage drilling sites and surrounding goaf areas.
5. Mine emergency rescue: Long-distance gas survey in disaster zones after gas outburst or roof collapse to protect rescuers.
6. Extended usage: Gas inspection for tunnel construction and non-coal mines with methane emission risks.
FAQ
Q: What's the lead time for orders?
A: Within 20 days after first payment.
Q: Do you provide sample? Free or charge?
A: Free samples are available, courier cost is borne by the buyer.
Q: How do you guarantee quality?
A: Always a pre-production sample before mass production;
Always final inspection before shipment.
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.
