JJB30 Mining Laser Methane Remote Measuring Instrument For Accurate Measurement

1,Overview
The laser methane remote measuring instrument is composed of two subsystems: the laser transmission and reception system and the signal processing system. The laser transmission and reception system consists of two laser beams. One is an infrared laser for gas detection, and the other is a visible red/green laser used for indicating direction and measuring distance. When the user presses the "MEASURE" button, the invisible infrared laser and the red/green indicating laser similar to an indicator pen start to work continuously. The infrared laser emitted by the transmitting end is absorbed by the methane gas when passing through the test gas, and the other part of the light is reflected back to the receiving end through ordinary obstacles (such as: bricks, concrete, grass, etc.). The reflected light returned to the receiving end is collected and converted into an electrical signal and transmitted to the signal processing system. The signal processing system determines whether there is gas leakage in the tested environment by detecting the strength of the laser light absorption and displays the gas concentration in the remote measuring instrument in units of ppm-m or %vol. The visible laser simultaneously measures the distance from the instrument to the reflection point and displays the gas concentration at the same time. Due to the principle that gases (such as methane) have an absorption effect on specific wavelengths of laser, this product only reacts to specific gases (such as methane) and will not cause false alarms due to interference from other gases, dust, water vapor, etc., which greatly improves the detection accuracy and avoids false measurement.The JJT4-1000 methane and carbon monoxide detection and alarm instrument is mainly used by underground detection
2,Features
1. Intrinsically safe product;
2. Selective for gases such as (methane), unaffected by various other gases, water vapor, and dust;
3. Telemetry distance can reach 60 meters;
4. Comes with distance display function;
5. Small in size, light in weight, convenient to carry;
6. Low power consumption, capable of long-term operation;
7. Excellent shock resistance, water resistance, and dust resistance performance;
8. Fast response speed, wide measurement range, high measurement accuracy;
9. Customizable data transmission method according to customer requirements.
3,Functions
Detection method: Adjustable laser spectroscopy principle
Detected gas: CH4 (NH3/HCL/C2H6/C3H8/C4-C6 selectable)
Sensor type: Infrared laser type
Measurement range: 0-10% vol (0 to 99,999 ppm-m)
Distance measuring instrument: Yes
Maximum detection distance: 30m (60m with special reflective surface)
Sensitivity: 5 ppm-m at the detection distance of 0-15m
10 ppm-m % at the detection distance of 15-30m
Measurement accuracy: ±10% @ 100 ppm-m (2m)
Response time: 0.1 s (1s for distance measurement)
Alarm method: Digital flashing alarm
Display method: LCD
Charging method: Charging socket, 110-240VAC, 50/60Hz
Power supply: Rechargeable lithium battery (replaceable charging battery)
Battery life: 10 hours of normal operation after the battery is fully charged
Operating environment: Working temperature: -20ºC to 50ºC
Relative humidity: ≤99%
Air pressure: 80kPa - 116kPa
External dimensions: 158mm × 77mm × 37mm
Overall weight: 380g
Material: ABS + PC
Self-check function: Built-in self-check and calibration function, no daily calibration required
Laser protection level: Class IIIa
Certification method: CNEX Exib IIA T4 Gb
Protection level: IP54
Optional configuration: Ergonomic harness

Beijing Topsky Century Holding Co., Ltd.was established in 2003, determined to become a respected global safety equipment

R & D enterprise.The Headquarter is in Zhongguancun Hightech Park, Jinqiao industrial base, Located total 3,000 square meters.

The registered capital is 42 million RMB. We have three subsidiaries: TOPSKY,TBD,KYCJ etc, is a national high-tech enterprises.

our product range:

1.Fire equipment,including fire robot,water mist system;

2.Fire rescue tools, including hydraulic tools,patrol powered concrete saws and so on;

3.Life search equpment, including audio & video life detector ,fire infrared imager and so on;

4.Gas detector,such as one gas detector, two gases detector, multi gas detector;

In fire equipment,rescue tools ,life research and police&millitary equipment, our company has unique advantage.

In safety supervision and law enforcement equipment,we are one of the largest producer.

Currently, our product was already exported to more than 20 countries and regions such as America, France, Australia, Italy and so on.

Until now, our company has

17 National Fire Equipment Quality Supervision and Inspection Center Certificate

103 mine safety certification mark (MA)

9 Chemical Explosion-Proof

6 CE certification

45 patent certificates

Topsky keeps launching new products at a proud speed 30% increments every year. Our company regards offering reasonable price,

fast delivery and good aftersales service as our mission . We sincerely hope to cooperate with more and more customers from

all of the world based on equality and mutual benefit.