ABB AO2000-LS25 Laser analyzers

ABB AO2000-LS25 Laser analyzers

Technical principle

The ABB AO2000-LS25 laser analyser is based on Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology and measures the average gas concentration along the line-of-sight path by means of a transmitter/receiver configuration. The measurement principle is infrared single-line absorption spectroscopy, i.e. each gas has a different absorption line at a specific wavelength. The analyser calculates the concentration of the target gas by scanning the selected absorption lines of the gas to be measured and detecting the change in light intensity with respect to the laser wavelength. In order to improve the measurement sensitivity, the analyser also adopts the wavelength modulation technology.

Instrument components

The ABB AO2000-LS25 laser analyser consists of three independent units:

Transmitter unit with purging: comprising the laser module, the temperature stabilised diode laser, the collimating optics and the main electronics, which are responsible for transmitting the laser light and measuring the light intensity.

Receiver unit with purge function: contains a focusing lens, photodetector and receiver electronics, which receives the laser light absorbed by the gas and converts it into an electrical signal for processing.

Power supply unit: provides the required power supply for the transmitter and receiver.

Functional features

High-precision Measurement: Adopting advanced laser technology and wavelength modulation technology to achieve high-precision gas concentration measurement.

Multi-component analysis: up to two sample component concentrations can be selected for measurement, suitable for simultaneous monitoring of multiple gases.

Environmentally adaptable: The transmitter and receiver are both IP66 rated for environmental protection and the standard optical window is pressure resistant up to 5 bar (absolute pressure), making it suitable for use in harsh industrial environments.

Easy to install and maintain: the analyser is easy and reliable to install, and the purge device prevents dust and other contaminants from being deposited on the optical window, reducing maintenance costs.

Areas of application

ABB AO2000-LS25 laser analyser is widely used in the following fields:

Industrial process control: in the chemical, petrochemical and pharmaceutical industries, it is used for real-time monitoring and analysis of chemical composition in the production process.

Environmental monitoring: for the detection of pollutants in the atmosphere, water and soil to support environmental protection and monitoring.

Mining and geological exploration: for analysing elements in soil, rock and ore to support mineral exploration and extraction.

Metal and alloy analysis: used in metal production and quality control to detect components and impurities in alloys.

Food and beverage production: for analysing ingredients in food products to ensure product quality and compliance.

Life science and medical research: for the analysis of biological samples such as cells, tissues and biomolecules.

Precautions

Installation and maintenance: Installation and maintenance of the analyser requires care and following the manufacturer's guidelines to avoid damaging the instrument and voiding the warranty.

Calibration: The analyser can be calibrated using either the in-built flow cell or a separate calibration cell to ensure the accuracy of the measurements.

Limitations of use: The analyser only measures the concentration of free molecules in a given gas and is not sensitive to molecules bound to other molecules in complexes and to molecules attached or dissolved in particles and droplets. Therefore, care should be taken when comparing measurements with those obtained by other measurement techniques.

Product Advantages

High precision: with high-precision control and data processing capabilities to ensure the accuracy and stability of system operation.

High stability: manufactured with advanced technology and materials to ensure long-term stable operation and reduce maintenance costs.

Powerful communication ability: support a variety of communication protocols, convenient for data exchange and communication with other equipment and systems.

Easy to expand and upgrade: modular design makes the system can be flexibly expanded and upgraded according to the actual demand.