Advanced Laboratory Instrument - High-Frequency Furnace Technology Heavy Industry, Steel Casting, Aerospace Minicarbon Element Analysis in Carbon Sulfur Mining

Product Description

Company Profile

Shandong Wanlianda Instrument Co., Ltd. has been focusing on analytical instruments for 30 years and become a leader in the field of domestic analytical instruments. Our high-frequency infrared carbonsulfur analyzer has 5 classical features: integrated design of highfrequency combustion furnace and infrared analyzer; two independent operating systems; reducing filter cleaning frequency significantly by using ultra-porous metal filters; more stable analytical gas flow by using gas mass flow controller; supporting wild measurement range including high-content carbon, low-content carbon, high-content sulfur and lowcontent sulfur.
 

Product Description

Measuring range	C1:0.001-20%(expandable to 100%)
	S:0.00001%-5%(expandable to 100%)
Analysis accuracy	Carbon RSD ≤0.4% Sulfur RSD ≤1.0%
Sensitivity (reading)	0.01ppm
Analysis time	30-50s
Detector	2 sets (high carbon, low sulfur)
electron tube	glass
light source	Nichrome wire
modulating motor	Switzerland (30,000 hours without failure)
Absorption pool coating material	gold plated
flow meter	digital quality
Detector sensitivity	0.01ppm
Accuracy Standard (RSD)	C:≤0.5%
	S:≤1.5%
carbon monoxide compensation	have
Temperature compensation	have
pressure compensation	have
flow compensation	have
Peak width compensation	have
Automatic dust removal	have
filter	Metal micropores
Pneumatic components	Japan SMC
way of communication	serial port
Combustion power	2.5KW
Working power	220VAC, 50HZ.

 

The induction furnace of CS-900 series high-frequency

infrared carbon and sulfur analyzer with the function of

automatic reverse purging dust removal. When it used with a

dust extraction valve, it automatically removes a large amount

of dust from combust, to make sure the accurate and repeatable

analysis results, reducing manual cleaning time and increasing

efficiency. High working efficiency, the dust removal power

comes from the combustion exhaust gas, which truly realizes

energy saving and environmental protection.

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Carbon and sulfur are one of the most widely distributed elements in nature. In the earth's crust,

carbon and sulfur usually exist in the form of compound (such as carbonate, sulfate) and element (such as

coal, sulfur). In the metal smelting process, no matter what smelting technology and craft is adopted,

carbon and sulfur will inevitably enter the metal material and form a variety of compounds, which will

have a certain impact on the properties of the metal. Therefore, in the entire smelting industry chain and

downstream industry chain, the analysis of carbon and sulfur elements is necessary.

The high frequency infrared carbon and sulfur analyzer is a fast carbon and sulfur analyzer, which

analyzer is a advanced carbon and sulfur analyzer at present, and it is widely used in fields of metallurgy,

machinery, scientific research, verification industries and etc.

Based on the principle of high-frequency induction combustion, the carbon and sulfur elements

contained in the sample are converted into CO2 and SO2. CO2 and SO2 have strong absorption bands at

4.26 μm and 7.4 μm respectively. By measuring the light intensity change after gas absorption, and

analyze the percentage of CO2 and SO2 gas concentration, indirectly determine the percentage of carbon

and sulfur in the measured sample. After circuit processing and analog-to-digital conversion, enter the

computer for data processing, and finally print out the analysis results by a printer.

Detailed Photos

Infrared Carbon/Sulfur Absorption Devices

1. Integrated design of optoelectronic, exquisite and durable structure;
2. Laser welds components, which ensure the tightness of gas system;
3. Preamp adopts special integrated circuit, enabling reliability and stability reaching to level J standard.

 

 

High-frequency Induction Loop

1. Surface coated with special materials.
2. Strong adhesion, antioxidant, no shedding.
3. The efficiency of induction is highly improved
4. Lengthen the lifetime of high frequency oscillating tube;
5. The instrument can be used for a long time without power attenuation.

 

 

High-frequency Oscillating Components 
 

Integrated design with high-voltage ceramic capacitors adopting level J products

 

Digital Mass Flow Controller

1. Digital Mass Flow Controller adopts Honeywell sensors imported from America;
2. Digital control provides accurate control and fast response;
3. Digital Mass Flow Controller wouldn't be affected by temperature, pressure and any other external factors;
4. The accuracy and stability of Digital Mass Flow Controller are better than the Variable Flow Meter.

  

The CS-902T high-frequency infrared carbon & sulfur analyzer is a cutting-edge instrument designed for precise and efficient analysis of carbon and sulfur content in various samples. This advanced technology utilizes a high-frequency induction furnace, which offers several advantages over traditional methods.

One of the key features of the CS-902T is its ability to handle a wide range of sample types, including those that are difficult to burn such as stainless steel, high-chromium steel, superalloys, master alloys, pure metals, ores, slag, sinter, graphite, and nonmetal oxide. This versatility makes it an ideal choice for laboratories involved in materials testing and quality control across different industries.

The high-frequency induction furnace used in the CS-902T operates at 18MHz, allowing for rapid heating and melting of samples. It can fully melt 1g of samples within 3 to 5 seconds, significantly reducing analysis time compared to traditional tube furnaces. The furnace's design also eliminates the need for long-term high-temperature radiation exposure, enhancing safety and durability.

Another critical aspect of the CS-902T is the selection of flux, which plays a crucial role in lowering the melting point of samples and producing exothermic oxidation effects during combustion. This not only facilitates sample burning but also improves the combustion temperature, ensuring accurate and consistent results. Common fluxes include tungsten particles and their alloys, industrial pure iron, and molybdenum trioxide, with the option to add tin capsules for enhanced performance.

The purification of O2 is also essential for accurate carbon and sulfur analysis. The CS-902T addresses this need by incorporating efficient color-changing desiccants and anhydrous magnesium perchlorate to remove moisture, and alkali asbestos to absorb carbon dioxide impurities. For ultra-low carbon and sulfur analysis, an ultra-pure oxygen purifier is recommended to further ensure the purity of the O2 supply.

At the heart of the CS-902T is its infrared detection system, which is based on the selective infrared absorption of CO2 and SO2. This system consists of an infrared light source, modulator, filter, measuring cell, detector, and related circuits. By leveraging the Lambert Beer's law, the infrared absorption of CO2 and SO2 provides a robust foundation for accurate analysis. The maximum absorption wavelengths for CO2 and SO2 are 4.26μm and 7.35μm, respectively, allowing for highly specific and sensitive detection.

In summary, the CS-902T high-frequency infrared carbon & sulfur analyzer offers unparalleled accuracy, efficiency, and versatility for carbon and sulfur analysis. Its state-of-the-art technology, combined with a user-friendly interface and robust construction, makes it an indispensable tool for any laboratory committed to excellence in materials testing and quality control.

Packaging & Shipping

Package Size	600*1000*800mm
Package Gross Weight	150kg

Certifications

1. Basic Principle

As a modern analytical instrument Wanlianda researched and developed, CS-902T high-frequency infrared carbon & sulfur analyzer is a practical automatic carbon & sulfur analyzer that will perform a rapid, accurate and reliable analysis. It is composed of automatic constant-pressure oxygen supply, high frequency induction furnace, infrared detector, computer, printer, electronic balance and so on. The analysis process is as follows: when the sample burns in the high frequency induction furnace, the carbon and sulfur included in the sample will be oxidized to CO₂ and SO₂, which will be sent to the infrared detector with O₂ as the carrier. The electrical signal produced by the infrared detector will be passed to the computer for data processing after amplification. The analysis results will be displayed then and the percentage of carbon and sulfur contents will be printed out.

Combustion of SamplesThe combustion of samples is a problem of primary importance you should solve. No correct results will be acquired if the combustion is not well carried out. This is a key point you should pay attention to.
Here CS-902T high-frequency infrared carbon & sulfur analyzer uses high frequency induction furnace as a common accessory for the combustion of samples. The high frequency induction furnace applies the classical "three-point" capacitive feedback oscillator circuit which is succinct and easy to start the oscillation with stability. The frequency is 18MHz with a high induction heating speed that 1g of samples can be fully melted within 3 to 5 seconds. The main current is composed of high power high frequency oscillating electronic tubes, solid capacitors, induction loops and so on, therefore to ensure a reliable performance with full power output as well as strong overload capacity.
The heat source of high frequency induction furnace is the same with tube furnace, both transferred from the electric energy but with different heating principles. It realizes heating with the following process as the principle: the high frequency magnetic field is generated through electric tube oscillation circuit. Samples will be introduced in this field to produce eddy currents, resulting in joule heating which will heat up and melt samples. This is the reason why it is called high frequency induction furnace as well. The high frequency induction furnace can save more power and time than tube furnace and will not suffer the long-term high-temperature radiation the tube furnace may encounter.
Compared with tube furnace, the high frequency induction furnace can effectively deal with some special samples that are difficult to burn, such as stainless steel, high-chromium steel, superalloys, master alloys, pure metals, ores, slag, sinter, graphite and nonmetal oxide.

Selection of FluxThe flux is essential for the analysis of carbon and sulfur. On one hand, it will lower the melting point to make samples easier to burn; on the other hand, it will produce the exothermic oxidation effects during the combustion, which is contribute to the improvement of the sample combustion temperature.
Tungsten particles and their alloys such as WSn, WFeSn, are the common fluxes for high frequency induction furnace. Tungsten particles are of good permeability and high heating value that will reduce the release speed of carbon and sulfur to get a stable analysis result. There is no splash during the combustion. The combustion-generated acidic tungsten trioxide can well eliminate the absorption of sulfur. Note for the blank value of carbon and sulfur during usage, especially during the analysis of low-carbon and low-sulfur samples.
The industrial pure iron is another good flux that can be widely applied in the analysis of pig iron, ferroalloy, stainless steel, heat resistance alloy and other special materials.
Molybdenum trioxide can better eliminate the absorption of sulfur in comparison with tungsten trioxide. For the analysis of high-chromium steel and high-manganese steel, a better sulfur analysis result will be acquired after adding an appropriate amount of molybdenum trioxide (generally 0.05g to 0.1g).
A suitable dose of tin capsules can also be used for the high frequency furnace (usually 0.3g or less and should be added together with MoO₃ at the same time). Excessive dust will be produced if a too high dose of tin capsules is added, which, therefore, will not be conducive to the analysis of sulfur.

Purification of O₂For the analysis of carbon and sulfur, we should pay attention to the purification of O₂ as well. Generally, there are impurities including moisture and CO₂ (carbon dioxide) together with a small amount of hydrocarbons in O₂, which may have a negative influence on the combustion of samples and the detection of carbon and sulfur. The infrared detection will bear a greater influence from moisture, especially for sulfur detection. Besides the absorption effects, the moisture will interfere with the determination of sulfur because the absorption peak of water vapor upon infrared rays is too close with that of SO₂ (sulfur dioxide). Therefore, compared with the other detection methods, the infrared detection will have a higher requirement upon the oxygen drying.
For the elimination of impurities in O₂, different matters should be applied for different impurities. The moisture can be removed by efficient color-changing desiccant and anhydrous magnesium perchlorate. The carbon dioxide can be absorbed by alkali asbestos. For the analysis of ultra-low carbon and sulfur, O₂ is required to be purified by using ultra-pure oxygen purifier.

Infrared DetectionCS-902T high-frequency infrared carbon & sulfur analyzer is designed and manufactured based on the selective infrared (IR) absorption of CO₂ and SO₂.
Infrared (IR) rays are electromagnetic waves with a wavelength ranging from 0.78μm to 1000μm. It can be divided into three regions with 0.78~2.5μm as the near infrared region, 2.5~25μm as the mid-infrared region and 25~100μm as the far-infrared region. Most IR instruments work in the mid-infrared region. Infrared rays are called infrared light as well because the characteristics are generally the same with the visible light that will travel in a straight line and comply with the law of light reflection and transmission. However, the infrared light is different with visible light from three distinctive features. Firstly, the infrared thermal power turns out to be largest throughout the electromagnetic spectrum; Secondly, the infrared rays will penetrate thick gas or cloud cover without scattering; finally, the thermal effects are significantly changed and easy to control after the infrared rays are absorbed.
Many substances such as CO₂ and SO₂ can selectively absorb the infrared rays. The maximum absorption wavelength for CO₂ is 4.26μm whereas for SO₂, it is 7.35μm. Both the infrared absorption of CO₂ and SO₂ obey the Lambert Beer's law. Therefore, the basic principle of infrared analysis is the same with photometric analysis, but different with sensors and measured components. The sensor is phototube for photometric analysis whereas infrared detector for infrared analysis. The measured component is colored solution for photometric analysis whereas gas for infrared analysis. Therefore, the infrared analysis can be named as "gas colorimetric analysis" as well.
The infrared detector is sophisticated gas analysis equipment, which consists of infrared (IR) light source, modulator, filter, measuring cell, detector together with relative circuits.
Before the combustion of samples, there is only O₂ going through the measuring cell. As the infrared light with specified wavelength will not be absorbed by O₂, detectors will receive the infrared light with maximum energy emitted from the infrared light source. Then, with the combustion of samples, CO₂ and SO₂ will enter the measuring cell together with O₂ to absorb the infrared light. The infrared light energy received by detectors will decay exponentially with the concentration increase of CO₂ and SO₂. The percentage of carbon and sulfur contents in samples will be acquired after data process from computer with the energy detectors received when the standard sample going through the measuring cell as reference


 

FAQ

1.    About the sample: How could I get a sample?
Once receive your payment for samples and their express delivery and then send samples to you.    
The prices of the samples are the same as those on the pricelist.    
Express delivery charge depends on the quantity of the samples.

2.    About price list: can I get your price list?
Yes, please tell us the products (with their code number) and order quantity, then we will offer the price by e-mail.   
And our price list will keep updated every month.

3.    About the shipment: what type of shipment will you use?
We usually ship the products by sea and land transportation.  

4.    About payment: what terms of payment do you use?
We accept TT (Telegraphic Transfer), Western Union as payment term for small order and L/C for larger order.

5.    About the MOQ: What is your minimum order qty?
Our minimum order qty is 1pcs, we accept small order as trial order.

6.    About compensation: what is your company's compensation policy?
We can compensate buyer's loss if our products have quality problem.    For small qty problem products, we can replace with new products in next order.    
For larger qty problem products, we can accept returned problematic products, then we check them and replace them by good quality products.

7.    About sole-distributor: How can I be your sole-distributor?
We have special policy for sole-distributor. Please contact our sales person to get related files.

8.    About OEM: could we place order by OEM style to produce our own brand products in China?
Of course you can.  Welcome to do OEM.
Thanks for your interest