The SY-PG500 small laser gas telemetry instrument consists of an optical mechanical system, a signal processing system, a display and alarm system, and a housing component. Mainly used for remote measurement of methane or methane containing gases (natural gas, gas, or similar gases) concentration.
The telemetry instrument emits an infrared laser to the detection point, which can quickly measure the concentration of air masses between the detection point and the telemetry instrument. For the convenience of observation, the telemetry also simultaneously emitted a visible red laser beam to the detection point. This telemetry instrument can detect the methane concentration value at the location in real time and accurately, and display and store it. When it exceeds the alarm value, it will sound and light an alarm for personnel to make subsequent actions.
The measurement principle of this telemetry instrument fully utilizes the absorption characteristics of methane gas at a specific wavelength. When the detection beam encounters methane molecules, some of the detection beam will be absorbed by methane molecules. By measuring the absorption rate, the concentration of methane gas clusters distributed between the target point and the telemetry instrument can be determined.

Product features of small laser gas telemetry instrument:
◆ Compact design, easy to carry
◆ Millisecond level fast response
◆ PPM level high sensitivity
◆ Non contact detection
◆ Can be detected through glass
◆ Will not be poisoned or drift
◆ Fingerprint characteristics, not affected by other gases

Technical parameters of small laser gas telemetry instrument:

Detection range	0～50000ppm·m
Detection distance	1～150m
Minimum detection limit	5ppm·m
Accuracy	±5%(Relative True Value)
response time	0.1s
Continuous working hours	8h
Power supply mode	lithium battery
Display mode	2.4inchLCD
Alarm display	The concentration value turns red,LEDThe light is flashing
alarm volume	≥70dB（1At the rice position
Alarm record	storage1000strip
Product size	195 mm×88 mm×63mm
Net weight	600g
Laser protection level	Class Ⅲa
Protection level	IP54
Explosion proof grade	Ex ib IIA T3 Gb
ambient temperature	-20～50℃
ambient humidity	0～90%RH, without condensation
Battery voltage	3.7v
Battery capacity	5000mAH

Scope of application of small laser gas telemetry instrument:
The SY-GP500 small laser gas telemetry instrument is widely used in the gas transmission and distribution industry, and is suitable for applications including:
◆ Gas pipeline inspection
Outdoor natural gas riser inspection
◆ Indoor inspection of residents without entering the house
◆ Natural gas storage tank inspection
◆ Remote detection of hazardous gas leakage areas
◆ Conduct inspections in areas that are difficult for personnel to reach, etc