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Laser Gas Analysis System

Classification：

Ex explosion-proof Series

Product Description:

The laser ammonia online monitoring system is based on the principle of tunable semiconductor laser absorption spectroscopy (TDLAS) technology, which scans and analyzes the ammonia absorption spectrum at 1512nm, and uses advanced technology such as digital lock-in amplifier and long-range gas chamber to achieve ultra-low concentration measurement of ammonia. The system selects the positive pressure explosion-proof extraction measurement method according to the requirements of the test conditions, and is simple to install and maintain, which can meet the demand for ammonia injection or fugitive ammonia detection in SCR/SNCR denitrification process.

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Product Details

Product Features

Reliable long light range heating gas chamber design, light range up to 3 meters.
Ultra-low concentration measurement, resolution up to 0.1ppm
High temperature sampling, coated gas chamber, sampling loss less than 0.1ppm/m.
Positive pressure explosion-proof cabinet, explosion-proof sampling probe, sound and light alarm.
No calibration design, simple maintenance, low cost of use.

Typical Applications

SCR/SNCR denitrification process control
Petrochemical denitrification ammonia injection control
Ammonia storage and pipeline concentration monitoring
Chemical production process control and other work

Performance Parameters
Model	Gas	Detection range	Resolution	Response time	Drift
eLAS-100Ex	NH₃	0-100ppm	≤1%FS	≤10s	≤±1%FS
eLAS-200Ex	HCL	0-100ppm	≤1%FS	≤10s	≤±1%FS
eLAS-300Ex	HF	0-100ppm	≤1%FS	≤10s	≤±1%FS
eLAS-600Ex	H₂S	0-100ppm	≤1%FS	≤10s	≤±1%FS

Functional parameters
Warm-up	30min	Digital Output	RS232/485	Analog Output	4-20mA maximum load 900Ω
Power supply	AC100-240V 47-63Hz/1.5kW		Relay Output	Load capacity: AC/DC 4V/1A; concentration over limit alarm Abnormal transmittance alarm, abnormal laser temperature alarm

Environmental parameters
Light length	10-50m	Sample gas temperature	≤800℃	Sample gas pressure	Atmospheric pressure ±5kpa
Sampling flow rate	2-3L/min	Ambient temperature	-10-55℃	Environmental pressure	70kpa-120kpa
Explosion-proof grade	ExdⅡCT6			Protection level	IP65
Dimension	650mm×400mm×1800mm			Weight	130kg