description
1. Scope of application of the instrument:

Various solid raw materials such as ferrous metals, non-ferrous metals, alloys, carbides, rare earth metals, ores, etc.
2 Measurement range:
Carbon: 0.00001% to 10%
Sulfur: 0.00001% to 5%
All of the above can be expanded by changing the sample size to expand the analysis range.
3 Minimum readings:

0.00001%
Scope of Analysis:
Carbon: 1.0ppm or RSD ≤ 0.4%
Sulfur: 1.0ppm or RSD ≤ 0.9%
Based on solid standard samples, one of the two conditions is met
Note: * The standard deviation or uncertainty shall not exceed the test standard deviation.
5 Analysis time:

20～40s
6. Weighing accuracy of electronic balance:

0.0001g
7 Analysis errors:
Carbon exceeds national standards
Sulfur is superior to national standards
Typical applications
Sharp 5 High Frequency Infrared Carbon and Sulfur Analyzer
FEATURES
1. Overall structure:
The whole machine adopts modular and integrated design, with four independent modules including high-frequency furnace, gas system, circuit system, and infrared detection system. The integration of the whole machine, that is, the integration of high-frequency furnace and infrared detection system, represents the international mainstream design (the separation of high-frequency furnace and infrared detection system is a domestic technology in the 1990s). The high-frequency furnace is equipped with professional anti high-frequency leakage devices, and the entire circuit system has anti electromagnetic interference devices; This eliminates the instability of analysis results and the impact of high-frequency radiation on the human body caused by high-frequency interference or electromagnetic interference.
2 High frequency furnace system
*The high-frequency furnace adopts digital closed-loop heating technology, which truly ensures the consistency of each combustion and improves stability.
*The electronic tube adopts an air-cooled ceramic power tube with an input power of 3.5 kilowatts, and operates in a reduced rated state, improving the stability of power output and component life.
*The main oscillator capacitor adopts a vacuum ceramic capacitor with a rated current of 100 amperes, which has extremely low dielectric loss and excellent stability, effectively improving reliability and power output stability.
*The metal connectors of the high-frequency furnace adopt the technology of silver plating on the copper surface and anti-oxidation conductive film; Adopting high-Q ferrite core coils; Equipped with cooling air ducts to enhance the power of the cooling fan and improve the thermal stability of the power components.
*The power of the high-frequency furnace is continuously adjustable through software controlled program heating.
*High frequency induction coils are coated with special materials, which pose a risk of ignition due to oxidation and other reasons.
3 Gas System
We have added a physical dehydration device for universities to adapt to the detection of samples with high moisture content. Based on pneumatic principles, we have designed a multi-channel oxygen supply, fully automatic reverse blowing and ash removal, fully automatic cleaning of the furnace head (optional), a constant temperature heating device for the furnace head, and a multi-stage filtration system. The pneumatic components, including solenoid valves, cylinders, pneumatic pipes, and pneumatic joints, are all imported components from CAMOZZI Pneumatic Co., Ltd. in Italy. The solenoid valve has a lifespan of over one million cycles, and the cylinder adopts oil-free lubrication technology, suitable for harsh on-site environments, fundamentally solving the reliability and sealing problems of common pneumatic systems in domestic products. According to the principle of aerodynamics, multiple oxygen supply channels have been designed, with fully automatic back blowing and ash discharge. The exhaust emissions are discharged through an ash discharge box (with a filter element inside), and after treatment, there is no pollution, meeting environmental protection related emission requirements. The furnace head is equipped with fully automatic cleaning (optional), fully automatic sealed double brush dust removal, furnace head constant temperature heating device, and multi-stage filtration system. The pneumatic components, including solenoid valves, cylinders, pneumatic pipes, and pneumatic joints, are all imported components from CAMOZZI Pneumatic Co., Ltd. in Italy. The solenoid valve has a lifespan of over one million cycles, and the cylinder adopts oil-free lubrication technology, suitable for harsh on-site environments, fundamentally solving the reliability and sealing problems of common pneumatic systems in domestic products.
A Furnace Head Design:The furnace head is the only key component on the equipment that connects the gas path, combustion furnace, and detection system, providing oxygen for combustion and purifying the combustion gas to meet the requirements of the detection system. The furnace head is equipped with a metal filter with ultra-fine aperture, which can reliably filter the dust during combustion, purify the gas entering the analysis system, and protect the detection components. Metal filter screens have the characteristics of low air resistance, high strength, corrosion resistance, easy cleaning, long service life (over one million hours), high mechanical dimensional accuracy, and good sealing performance.
B Furnace Head Constant Temperature Heating Device:The constant temperature heating device of the furnace head precisely controls the temperature of the furnace head while heating, allowing analysis to be carried out immediately without preheating or saturating the gas system, reducing waste samples and ensuring accuracy of analysis. Especially for low content and sulfur analysis, it is more stable and accurate, effectively avoiding interference from small amounts of moisture on the sample
Multi channel oxygen supply design:The unique top blowing oxygen system ensures smooth airflow and protects the metal cleaning brush by controlling the operating path of the combustion airflow. The dedicated high flow oxygen supply channel combined with anti backflow dust nozzle design not only ensures the high flow oxygen supply requirements for various materials, especially raw materials, ferroalloys and other refractory samples during analysis, but also effectively prevents the combustion of oxide dust from entering the oxygen supply system, greatly improving the stability and reliability of the instrument operation.
D gas path multi-stage voltage stabilization design,Equipped with a constant current system gas source oxygen pressure reducing gauge for primary stabilization, precision flow control valve for secondary stabilization, and precision flow controller for tertiary stabilization. According to the principle of infrared detection, the pressure of the gas path system directly affects the analysis results. The more stable the gas flow rate, the higher the analysis accuracy.
E Automatic cleaning and ash discharge designAutomatically control the ash discharge process by computer. Each analysis can eliminate the interference of atmospheric background elements and effectively eliminate the influence of moisture in the air on sulfur. At the end of each analysis, automatic positive pressure pulse dust removal is carried out to expel most of the oxide dust generated by combustion outside the machine. The institution operates stably and reliably, having undergone more than 10 years of testing. The fully automatic cleaning device can automatically clean the dust inside the metal filter and quartz combustion tube simultaneously, greatly improving the stability of raw material analysis and reducing equipment maintenance work, providing a guarantee for continuous analysis.
F gas path designThe integrated design of the whole machine greatly shortens the connection route of the gas path system, making the whole machine gas path system more concise and reliable. At the same time, the shortening of the gas path also greatly reduces the impact of the adsorption and release effect of the pipe wall in the gas path system on the analysis results.
G multi-stage filtration dust removal designThe design of the filtration system ensures that the infrared detection chamber will not be contaminated, eliminating the hassle of cleaning the chamber for users (chamber cleaning requires professional expertise).
4 Circuit System
The circuit system adopts large-scale integration, and all large-scale integrated circuit boards are mechanically soldered. In addition, professionally selected electronic components ensure the long-term stability and reliability of the circuit board. The power system adopts two solid-state power modules, which have short-circuit protection function, are resistant to current shock, dustproof, simple and reliable; The connection adopts flat wire connectors instead of slot forms, eliminating the hidden dangers caused by poor contact and improving the reliability of the entire circuit and the connection reliability between lines. The data transmission lines and other circuits of the circuit system have professional anti-interference measures, effectively reducing the impact of electromagnetic interference.

5 Infrared detection system
The core component infrared detection pool uses efficient and long-life platinum rhodium alloy precious metal micro infrared light source and metal reflector; The modulation system adopts high-precision imported stepper motors controlled by microcontrollers, achieving long-term stability of modulation frequency. Combined with proprietary components such as narrowband filters and integrated infrared sensors imported from Europe, which are at the international advanced level, and high-precision A/D sampling cards, the whole machine has extremely high detection sensitivity and can effectively detect ppm level carbon and sulfur content. The imported high-efficiency narrowband infrared filter has good rectangular coefficient, high cut-off depth, high characteristic wavelength transmittance, small bandwidth, high center wavelength positioning accuracy, and better shields the interference of other element spectral lines and electrical signals, completely eliminating the interference of high carbon content on low sulfur analysis background absorption. Imported infrared sensors with constant temperature technology work environment, ensuring 48 hours of outdoor temperature interference to the infrared detection system. The detection rate is superior to similar domestic products and at the international leading level, meeting the requirements of ultra-low content analysis. At the same time, the stability and reliability of imported infrared sensors are far superior to domestic products.