LST9100FIR Portable Fourier Transform Infrared Spectroscopy Gas Analyzer-Fornitore globale

13th Floor, Building E, Chang'an Center, Financial Street, No. 26 Chengtong Street, Shijingshan District, Beijing

HJ 919-2017 Determination of volatile organic compounds in ambient air Portable Fourier transform infrared method

HJ 920-2017 Portable Fourier transform infrared method for emergency monitoring of inorganic harmful gases in ambient air

HJ 1011-2018 Technical Requirements and Testing Methods for Portable Fourier Transform Infrared Monitoring Instruments for Volatile Organic Compounds in Environmental Air and Waste Gas

In recent years, with the dynamic collimation of Fourier transform infrared spectrometers, the application of high sensitivity, high signal-to-noise ratio detectors, multi-channel gas pools and other technologies, as well as the adoption of better spectral preprocessing methods and quantitative models, it has gradually become the mainstream in the field of gas analysis. 9100FIR is a portable Fourier transform infrared multi-component gas analyzer independently developed by Le Shi Technology. 9100FIR adopts full spectrum analysis technology, and one analyzer can test all substances with absorption in the infrared spectrum range. Therefore, 9100FIR can theoretically test thousands of gas types.

The instrument has a sturdy structure, strong mobility and seismic resistance, and is suitable for continuous monitoring tasks in complex and harsh working conditions. The instrument adopts the most advanced and mature technology for in situ sampling and analysis internationally, which can perform qualitative and quantitative analysis of organic and inorganic gases at high temperature, in situ, non-destructive, fast, and simultaneously. Unlike electrochemical instruments and ordinary infrared instruments, 9100FIR adopts advanced mathematical modeling algorithms to accurately measure each gas component to be measured, avoiding significant measurement errors caused by gas cross interference. 9100FIR is currently one of the analytical products on the market with high cost-effectiveness and flexibility.

Product features:

★ Multiple types of testing gases: Using full spectrum analysis technology, theoretically thousands of organic and inorganic gases can be measured. Currently, nearly 400 compounds are open to customers for free;

★ Original state analysis technology for flue gas: adopting the most advanced and mature original state sampling and analysis technology in the world, measuring at a high temperature of 180 ℃, suitable for measuring hot and humid flue gas;

★ High degree of systematization: The host is equipped with a high-temperature pre-treatment unit for samples, which has a high degree of systematization and more thorough filtration of particulate matter and dust;

★ Multiple resolution options: Resolutions of 1, 2, 4, and 8cm-1 are available for customers to choose from, and it is recommended that customers use a high resolution of 1cm-1, which has stronger qualitative and quantitative capabilities for substances;

★ Stable reference light source: Adopting a vertical cavity surface emitting laser, the light source has good stability, a lifespan of up to 10 years, and low maintenance costs in the later stage.

★ High performance detector at room temperature: using a high-performance DTGS detector at room temperature, it can be used without refrigeration and has the characteristics of wide infrared activity range, wide linear range, and long service life;

★ Special reverse blowing port: The instrument has a nitrogen reverse blowing interface, which can achieve reverse blowing of the gas chamber and keep it clean and uncontaminated. A dedicated internal light path nitrogen blowing interface can blow optical components to improve cleaning ability, ensuring that the instrument has sufficient light flux and sensitivity.

★ Instrument status visualization: The LED lights on the front panel of the host can indicate the current status of the instrument, making it easy for users to determine whether the instrument is running normally or not;

★ Post sampling system: The post sampling system is conducive to VOCs analysis, and the sample gas is directly sent to the gas chamber for analysis through the heat tracing pipeline, reducing the risk of secondary pollution of the sample gas and the process loss after condensation;

★ Real time display of oxygen concentration: Equipped with a built-in zirconia sensor, it can provide parallel data on the oxygen content of the sample gas;

★ Powerful software features: The analysis software can automatically perform standard emission testing calculations, including drift correction, minimum detection limit (LDL) calculation, and residual inspection, in compliance with corresponding standards;

★ Built in multi range: The instrument has multiple built-in ranges, and the intelligent analysis system of the instrument can automatically switch ranges for measurement based on the concentration of the sample gas;

★ Powerful chemical stoichiometry capability: The analysis software is equipped with multiple analysis methods and uses powerful PLS algorithms, with strong qualitative and quantitative capabilities for substances;

★ Flexible data processing: The instrument can record test data in real time, and the data can be exported and downloaded. It can also be opened in Excel format for data processing, and new gases can be analyzed offline again;

Configuration parameters:

★ Built in oxygen sensor, built-in secondary filter, dust filtration less than 2 μ;

★ 180 ℃ adjustable heating intake filter, high temperature analysis throughout the entire process from the heating probe to the heating pipeline;

★ Automatic reverse nitrogen blowing interface, reverse blowing sample cell, dedicated internal light path blowing nitrogen interface;

★ The measurement time can be selected from 1 second to 3 minutes, and after setting the measurement time, unmanned continuous measurement can be carried out. Continuous on-site recording and storage, automatic storage;

Usually, portable FTIR instruments are limited by low resolution, but the 9100FIR FTIR resolution can reach 0.7cm-1 (※ uncut toe). With a portable FTIR analyzer, on-site investigations and monitoring of chimney or process exhaust vents can be carried out. 9100FIR can measure low concentration complex mixed gases at high resolution. However, the real advantage of 9100FIR lies in its variable resolution. If measurements need to be taken at a resolution of 4cm-1 or 8cm-1, they can be set through software without changing the hardware. The scanning speed can be adjusted according to the resolution, which is flexible and applicable to various working conditions to obtain the best analysis results.

Operating software:

A user-friendly software operating platform allows beginners and users with Fourier experience to obtain more information from 9100 FIR analysis, and provides fully automated operations:

★ Sample gas infrared spectrum, concentration trend chart, and real-time concentration display of gas components on the same screen;

Detailed status information and alarm information of the instrument;

There is no upper limit to the number of gases measured simultaneously;

★ No need to save a large number of spectral libraries on the computer;

★ Built in multi range, automatic range switching;

★ Complies with ASTM, US EPA, ISO, and UK EA TGN standards;

★ Strong traceability, measurement spectra and sampling information (temperature, pressure, oxygen, resolution) can be saved;

Various chemical stoichiometry model construction tools such as PLS and CLS algorithms;

★ Can perform reanalysis or offline analysis on interfering gases or new gases;

★ Built in minimum detection limit LDL calculator;

★ Sampling system alarm information prompt;

Product application:

Monitoring of combustion gas emissions from waste incineration, coal-fired power plants, etc;

Industrial process gas analysis and control;

★ Environmental air emergency monitoring;

★ On site monitoring of labor hygiene;

Research on desulfurization and desulfurization catalysts;

Research on the efficiency of exhaust gas treatment equipment;

Monitoring of ammonia escape conditions;

★ Monitoring of flue emissions;

★ Online CEM system;

★ Suitable for monitoring hot and humid gas samples with complex gas compositions.

Hardware parameters:

Enhanced interferometers with high durability; Permanent alignment of optical components; Provide reproducible measurement results and hyperspectral transmittance; Lifetime warranty for scanning devices;

Spectral resolution: 1cm-1, 2cm-1, 4cm-1, 8cm-1 Typical resolution options available; Special applications can choose 0.5cm -1

Optical components: Zinc selenide beam splitter (moisture-proof)

Spectral range: 485~8500cm-1

Reference laser: Solid state laser (no daily maintenance required), with a longer lifespan (10 years) compared to HeNe laser

Detector: Long life, high-performance, maintenance free DTGS detector at room temperature (24 bit ADC signal sampling)

Sample Room:

Material: The sample chamber is coated with corrosion-resistant 100% gold and bornite coating. Reflector: gold and bornite coating. Volume: 300ml. Temperature: 180 ℃. Standard for combustion emissions. 40 ℃. Emergency use for ambient air

Online sampling control system:

The heated particulate filter in front of the testing room provides additional protection; Zirconia oxygen sensor for synchronous oxygen measurement; Automatic nitrogen purge valve with flow rate control; Quality flow control is used for dilution and standard gas testing; No separate analyzer pre sample gas adjustment component is required; Alarm relay; Sampling signal output; 4~20mA output is optional;

Weight:20kg, depending on the configuration

Size:570mm x 535mm x 242mm

Power Supply:100~250 V / 50-60 Hz，250W

9100FIR operates using a standard analytical model with fixed acquisition parameters and common emission gas stoichiometry models; This makes FTIR easy for new users to use; Further analysis models can be loaded by professional users or remotely.

Typical detection limit:< 0.5ppm (depending on gas)

Typical response time/T90:120 seconds (1cm-1) (depending on gas)

Linearity:<2% range

Short term drift:<2% range

Environmental temperature drift impact:<5% range

Repeatability: 1% range

Standard application model - hard coded analysis of common flue gas emissions, without the need for complex setting requirements;

Power on - zero calibration - measurement - report

The range of the flexible measurement mode standard analysis model is not fixed - it can be increased through calibration, and the gas composition can be expanded;

Typical monitoring of standard application model (automatic switching of dual range, customized expansion range according to customer needs)

component	Range (ppm)	Extended range (ppm)	LDL
H2O	0-25%		0.005% vol
CO2	0-25%		0.010% vol
CO	0-60		0.25 ppm
SO2	0-30		0.20 ppm
NO	0-200		0.25 ppm
NO2	0-100		0.10 ppm
N2O	0-200		0.10 ppm
NH3	0-20		0.05 ppm
HF	0-60		0.05 ppm
HCl	0-10		0.05 ppm
CH4	0-70		0.30 ppm
HCN	0-50		0.50 ppm
C6H6	0-250		0.20 ppm
C7H8	0-250		0.50 ppm
C8H10	0-80		0.50 ppm
C8H10	0-80		0.10 ppm
C8H10	0-80		0.20 ppm
C8H8	0-80		0.50 ppm
CH2O	0-80		0.25 ppm
C3H4O	0-80		0.15 ppm
C6H6O	0-80		0.10 ppm
C6H5NH2	0-80		0.50 ppm
C2H3Cl	0-80		0.10 ppm
C6H5NO2	0-80		0.50 ppm

Note: The extended range can be customized according to customer needs;

component	Range (ppm)	Extended range (ppm)	LDL
SO3	0-80		0.20 ppm
O2	0.01-25%		via O2 Sensor
C2H6	0-100		0.30 ppm
C3H8	0-100		0.20 ppm
C2H4	0-100		0.15 ppm
TOC	0-5000		0.50 ppm
H2S	0-200		30 ppm
CH4S	0-2.5		1.00 ppm
C2H6S	0-20		1.00 ppm
C2H6S2	0-5		1.00 ppm
CS2	0-10		0.40 ppm
CH3(CH2)2CHO	0-40		0.15 ppm
C5H10O	0-30		0.20 ppm
CH3COCH2CH3	0-30		0.30 ppm
C6H12O	0-50		0.30 ppm
C3H4O2	0-40		0.50 ppm
C4H6O2	0-30		0.25 ppm
C5H8O2	0-25		0.25 ppm
C5H8O2	0-25		0.25 ppm
CH5N	0-20		0.30 ppm
C2H7N	0-10		0.50 ppm
C3H9N	0-10		0.50 ppm
CH3COOCH2CH3	0-30		0.50 ppm
CH3COOC4H9	0-25		0.25 ppm

Note: The extended range can be customized according to customer needs;

9100FIR Solution:

The ability of 9100FIR to simultaneously analyze the number of VOCs depends on the software and hardware. The advanced spectral analysis method and high resolution (1cm-1 or 0.5cm-1) of the built-in software enable 9100FIR to provide a perfect VOC component analysis solution.

VOC classification:

The 9100FIR analyzer can establish a separate analysis model based on functional groups, allowing us to select the most suitable spectral regions for analyzing these species. Provide more accurate predictions when new or unknown species contain certain types of gases. The figure on the right summarizes how to group and simplify the analysis of bands in the infrared spectrum used.

9100FIR can display real-time monitoring data of VOC components. There is no limit to the number of VOCs that can be measured simultaneously.

9100FIR can have a built-in preloaded VOC analysis model, which does not require conventional calibration and has minimal consumables. Analysis and testing can be completed in just 1 minute.

VOC measurement:

VOC measurement is usually analyzed using the FID method. But F ID is usually used for the analysis of TVOC, and substances containing C-O bonds have poor response on FID detectors. To test the various components of VOCs using FID principle, it is necessary to use GC in conjunction.

GCThe long analysis cycle and cumbersome setup and calibration make GC-FID less suitable for online analysis and emission monitoring. The 9100 FIR based on FTIR principle can quickly and accurately identify and analyze hundreds of volatile organic compounds. The analysis data of 25 volatile organic compounds in engine exhaust are shown in the left table.