Model JJY10/30 is an intrinsically safe handheld laser methane remote detector for coal mines. Adopting the TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology and designed in accordance with the Lambert-Beer law, it is developed specifically for gas inspection and patrol in underground coal mines to realize non-contact long-distance methane (gas) detection. It upgrades the conventional single-point suction sampling detection to path-based detection of regional gas clouds, serving as an intelligent portable device for ventilation and gas inspection operations in coal mines.
Product Advantage
1. Adopts TDLAS laser detection technology with excellent gas selectivity. It is immune to interference from dust, moisture and other mixed gases; the sensor cannot be poisoned, ensuring stable long-term operation and infrequent calibration.
2. Supports non-contact remote detection up to 30 meters. No drilling or pump sampling is required, and methane inside sealed facilities can be measured through glass.
3. Equipped with red aiming laser for precise positioning. With optical path integral detection, it quickly identifies methane accumulation in roadways, roof cavities and upper corners over a large area.
4. Designed as intrinsically safe for coal mines with IP65 protection grade, reliable for humid and dusty underground working conditions.
5. Operators can take measurements from a safe distance without approaching high-risk gas accumulation zones, avoiding hazards from roof fall and gas hazards.
6. Handheld and portable with fast response, sound-light alarm and data storage functions, featuring high inspection efficiency and low maintenance costs.
Technical Parameters
Technical Parameter | Parameter Value |
I. Basic Parameters | |
Product Model | JY10/30 |
Target Gas | Methane (CH4) |
Detection Principle | TDLAS-Tunable Diode Laser Absorption Spectroscopy |
Explosion-proof Type | Mining Intrinsically Safe Type,Explosion-proof Mark Exib I Mb |
Intrinsically Safe Level | IP66 (Exhibit A Splash-proof) |
Overall Dimensions | Approx. 220×70×55 mm |
Total Weight | Approx. 420 g |
II. Measurement Performance | |
Measuring Range | 0 ~ 10%VOL (or 0 ~ 100000 ppm·m) |
Resolution | 0.01%VOL (≤15 m);0.02%VOL (15 ~ 30 m) |
Measurement Accuracy | ±10% @ 1.0%VOL |
Detection Distance | 0 ~ 30 m (Non-contact Remote Measurement) |
Response Time | ≤ 0.5 s |
Laser Spot | Conical beam,spot diameter approx. 30 cm at 30 m |
Laser Safety Class | Detection Laser (1650 nm) Class I;Indicator Laser (Green 532 nm) Class IIIR |
III. Environmental Adaptability | |
Operating Temperature | -10°C ~ +50°C |
Operating Humidity | ≤ 98%RH (No Condensation) |
Operating Air Pressure | 80 ~ 116 kPa |
Wind Resistance | ≤ 8 m/s |
IV. Power Supply and Battery Life | |
Battery Type | Built-in Lithium Manganese Battery (Intrinsically Safe) |
Battery Voltage/Capacity | 7.2 V / 3000 mAh |
Continuous Operating Time | > 8 h (Continuous Measurement Mode) |
Charging Method | Special Desktop Charger |
V. Display and Alarm | |
Display Screen | 2.4-inch Color LCD Screen,can display real-time concentration,maximum |
Display Unit | %VOL / ppm with Switchable |
Alarm Mode | Audible and Visual Alarm (Volume ≥90 dB),Screen Flashing Prompt |
Audio-Visual Threshold | Customizable |
VI. Other Functions | |
Data Storage | Automatically store historical data,exportable |
Communication Interface | Bluetooth (Optional),support mobile APP monitoring |
Measurement and Ranging | Built-in laser ranging function,real-time display of detection distance |
Anti-interference Performance | Gas fingerprint recognition,no interference from CO,CO2,H2S and other gases |
Product Uses
1. Remote fixed-point detection of accumulated methane at upper corners and return air sides of mining and excavation working faces.
2. Inspection of methane leakage in roof cavities and surrounding rock fractures of roadways with no need for climbing.
3. Gas leakage detection outside sealed walls, wind barriers and gas drainage barriers without drilling holes to damage the sealing structure.
4. Methane measurement for overhead pipelines and hidden high-level measuring points in belt roadways and electromechanical chambers.
5. Long-distance inspection at the edge of goafs and high-risk areas with excessive methane to ensure operator safety.
6. Scanning detection of air leakage at joints and hole-sealing positions of gas drainage pipelines.
7. Non-contact gas measurement inside confined spaces behind observation windows and explosion-proof glass underground.
8. Rapid mobile inspection of full-range potential gas hazards by ventilation teams.
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.
