CS-8820 Infrared Carbon and Sulfur Analyzer

OneInstrument Overview
The CS-8820 infrared carbon sulfur analyzer is used in conjunction with the WF-T88 high-frequency induction combustion furnace to quickly and accurately determine the mass fractions of carbon and sulfur elements in steel, iron, alloys, casting core sand, non-ferrous metals, cement, ore, coke, catalysts, and other materials. This equipment has introduced advanced technology from abroad and is a high-tech product that integrates optics, mechanics, electronics, computers, and analysis technology. It has the characteristics of wide measurement range, strong anti-interference ability, complete functions, easy operation, and accurate and reliable analysis results.
IIInfrared detection principle
CO₂、 SO₂Equipolar molecules have an electric dipole moment and therefore possess structures such as vibration and rotation. Divided into split energy levels according to quantum mechanics, gas molecules can couple with incident characteristic wavelength infrared light to produce absorption. In the infrared light band, gas molecules have selective absorption spectra. When specific wavelength infrared light passes through CO₂Or SO₂After gas, it can produce strong light absorption.
Since the detector converts optical signals into electrical signals, when the detector operates in a linear region, selects a specific wavelength and determines the length of the analysis cell (absorption cell), the concentration of the measured gas in the mixed gas can be calculated by measuring the light intensity. This is the basic principle of infrared absorption method for quantitatively measuring gas concentration. The selected measurement wavelength for this instrument is CO₂4.26um, SO₂It is 7.4um.
The analysis room includes miniature infrared light sources, mirrors, modulation motors, absorption cells, filters, and detectors. The miniature infrared light source is heated to 800 ℃ by electricity to produce infrared light, which is absorbed by CO through an absorption cell₂、 SO₂After absorption, it passes through a narrowband filter to remove the energy of other light radiation outside the above-mentioned wavelength. When it is incident on the detector, the detector detects CO₂、 SO₂The light intensity corresponding to the concentration is converted into an electrical signal by a detector, and then normalized and calibrated by a microcomputer. The integrated inversion is used to obtain the percentage content of carbon and sulfur elements. A modulation motor is placed between the light source and the absorption cell to modulate the light signal into a 64Hz alternating radiation signal. The center frequency of the detector output is 64Hz.
The thermoelectric device is converted into an electrical signal, which is then amplified in the preamplifier and post amplifier before entering the microcomputer through digital to analog conversion. In the microcomputer, it is converted into CO through linearization operation₂、 SO₂A numerical value proportional to the content.

3、 Main technical parameters
Measurement range: Carbon: 0.0001% -10.0000% (expandable to 99.9999%)
Sulfur: 0.0001% -3.5000% (expanded to 99.9999%)
Analysis error: in accordance with GB/T20123-2006/ISO15350:2000 standard
Analysis time: Adjustable from 25-60 seconds (usually around 35 seconds)
High frequency furnace: power ≥ 2.5kVA; Frequency: 18MHz
Electronic balance: The electronic balance does not measure the sample quantitatively, with a reading accuracy of 0.0001g
Working environment: Indoor temperature: 10-30 ℃; Relative humidity: less than 90%
Power supply: requires good grounding, voltage AC220V ± 5%; Frequency 50Hz ± 2%
Oxygen: purity ≥ 99.5%, input pressure 0.18MPa ± 5%

4、 Configuration and its main characteristics description