LGA-4100 In-situ Tunable Diode Laser (TDL) Gas Analyzer

LGA-4100 In-situ Tunable Diode Laser (TDL) Gas Analyzer

Product overview

Based on the Tunable Diode Laser (TDL) technology, LGA-4000 is a highly reliable laser gas analysis system that monitors various toxic and hazardous substances (HF, NH₃, H₂S, HCI) from stack emission with high accuracy, strong reliability and is virtually maintenance-free.

Leveraging an installed base of over 8,000 units, the LGA system has been extensively used for combustion and safety control, process optimization, energy recovery, scientific research as well as environment monitoring. To date, these units have been employed in metallurgy, refinery, petrochemical, natural gas, power plant, waste incineration, cement and other situations where gas measurement is needed.

Principle

TDLAS technology utilizes the principle that laser en-ergy is absorbed selectively by gas to form an absorption spectrum. Laser beams of specific wavelengthsis emitted by semiconductor laser, and when passesthrough the gas, the attenuation of the laser intensityis related with measured gas. The concentration canbe obtained by measuring intensity attenuation.

Key features

• In-situ, no gas sampling.
• No cross interference.
• A fast response less than one second.
• Diverse optical length (0.5~20m).
• Reliable in all harsh conditions: high temperature & pressure, dust density, moisture, and corrosion.
• Online calibration, no zero drift.
• Thousands of tailor-made solutions for various applications.
• International ATEX certified.

Applications

• HCl, HF in waste incineration.

• NH3 and HF monitoring in fertilizer plant.

• HCl in pharma industry.

• NH3 slip in thermal power plant SCR, SNCR.

Technical and application details

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Ordering and configuration

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