High Frequency Infrared Carbon Sulfur Analyzer

UseAGE

The determination of the mass fraction of carbon and sulfur in iron and steel, non-ferrous metals, cement, ore, glass, ceramics and other metal and non-metal materials . The instrument uses a high-frequency induction heating furnace to burn the sample, and the mass fraction of carbon and sulfur in the sample is tested by the infrared absorption method.

Main feature 

• Floor-standing table design, beautiful appearance, natural and comfortable operation;
• Key components such as detectors, optical filters and solenoid valves are all imported components;
• With dual-carbon pool and dual-sulfur pool upgrade function design, it improves the precision and accuracy of high-carbon, high-sulfur, ultra-low-carbon, and ultra-low-sulfur measurements;
• The modular design of the control circuit of the whole machine improves the reliability of the instrument;
• WINDOWS10 Full Chinese operation interface, easy to operate and easy to master ;
• The software is fully functional, providing more than 40 functions such as file help, system monitoring, channel selection, mathematical statistics, result correction, breakpoint correction, and system diagnosis;
• carbon and sulfur release curves during the analysis process ;
• Wide measurement linear range and expandable; one-key linear curve automatic translation technology (leading in the world);
• The power of the high-frequency furnace is adjustable, which is suitable for the analysis requirements of samples of different materials;
• High-frequency furnace temperature program, automatic cleaning, automatic back-blowing ash;
• The latest eighth-generation automatic installation software operating system
• The high-frequency circuit is designed reasonably, and the 6KVA high-frequency power tube is packaged with military metal ceramics to reduce the load of the combustion system and improve the service life;

Main technical performance

• Measuring range: Carbon: 0.0001%-15.0000% ( double cell automatically expands to 99.99%) Sulfur: 0.0001%- 5.0000% ( double pool automatically expanded to 99.99%)
• Analytical error : in line with GB/T 20123-2006/ISO 15350:2000 standard
• Analysis accuracy: Carbon : RSD ≤0.5% Sulfur: RSD ≤1.0%
• Sensitivity: 0.01ppm
• Analysis time: 20-60 seconds adjustable, generally around 35 seconds
• Electronic balance: Weighing range: 0-80g
• Reading accuracy: 0.0001g (with one ten-thousandth balance)
• High frequency furnace: Power: 2.5KVA-3.5KVA Power adjustable frequency: 20MHz
• Channel Setting: Carbon 16 channels , sulfur 16 channels _
• Sample rate: 25 times/second A/D Conversion frequency: 120Hz (domestic leading)

Advantages and characteristics of high frequency infrared analyzer

Overall structure

The whole machine adopts modular and integrated design, the connection routes of the gas system are greatly reduced, and the gas system of the whole machine is more concise and reliable. The circuit system adopts large-scale integration. The power system adopts two solid-state power modules. The power module has a short-circuit protection function, which is resistant to current impact, dust-proof, simple and reliable; the connection uses flat connectors instead of slots, which improves the reliability of the entire circuit. Reliability and connection reliability between lines.

Air system

According to the principle of aerodynamics, multi-channel oxygen supply, automatic back-flushing and dust removal, and automatic cleaning of the furnace head are designed to effectively reduce the influence of dust on the analysis of sulfur elements, and a constant temperature device for the furnace head is added to reduce the influence of temperature on the analysis results. ring, especially when the analysis of sulfur is more stable. The air pipes and air joints are all designed for quick connection and plugging. The solenoid valves and cylinders are imported from AirTAc and have a service life of more than one million times. The cylinders adopt oil-free lubrication technology, which is suitable for harsh site environments and fundamentally It solves the reliability and sealing problems of the gas system that are common in domestic products .

Infrared detection system

The core component infrared detection pool uses high-efficiency, long-life precious metal miniature infrared light sources and metal reflectors; The modulation system adopts a high-precision DC digital stepping motor controlled by a single-chip microcomputer to achieve long-term stability of the modulation frequency , combined with military aviation-grade infrared pyroelectric solid light cone sensors, narrow-band filters, and high-precision A/D The sampling card makes the whole machine have extremely high detection sensitivity, which can effectively detect the content of carbon and sulfur in ppm level .

Detection range and accuracy

In the gas circuit design, a series of effective measures such as high-pressure ash discharge, pulse backflushing, automatic cleaning, high-precision flow control and pressure compensation are adopted, as well as the unique full-range calibration technology and linear compensation technology, so that the instrument has a wide detection range. . The detection of on-line carbon can reach 99.99% , and the sulfur can reach 99.99%. At the same time, the Mettler 1/10,000 electronic balance is used to make the analysis accuracy reach the international advanced level.

application

On Window7 (10) operating system, PC interface adopts data exchange technology, builds a system working mode of upper and lower computer communication, multi-window, multi-task operation, in database management, It realizes automatic storage of data, possesses powerful functions, multi-filtering database search engine, synchronous display, storage, amplification of working curves and multiple comparisons of multiple curves, etc. dozens of functions.

linearization scaling

Infrared carbon and sulfur analyzer is to analyze the content of carbon and sulfur elements in substances by detecting the absorption of infrared radiation by CO2 and SO2 gases ; linearization calibration is the key technology in instrument data. Because Lambert-Beer's law conforms to the exponential law, and because the infrared filter has a certain bandwidth, the gas absorption coefficient is not constant, so it is very difficult to obtain the linearization calibration of the integral area. We have made major breakthroughs in the design of the calibration mode, calculation method, and calibration software, and have achieved good linearity in the full range.

Weight Data Acquisition

The domestic exclusive innovation has developed the real-time data continuous and uninterrupted connection interface technology of the electronic balance and the instrument operating system, which can realize the real-time dynamic display of the balance data in the instrument operating system, which is convenient and intuitive, and can realize N Storage and call of secondary weight data.

Design of High Frequency Furnace

1. The power of the high-frequency furnace is adjustable from 2.5-3.5 kilowatts. The 7.5KW power tube is selected and made to work in a derated state, which improves the stability of power output and the life of components.

2. The main vibration capacitor adopts a vacuum ceramic capacitor with a rated current of 100 amperes, which has extremely low dielectric loss. Excellent stability, effectively improving reliability and power output stability.metal connectors of the high-frequency furnace adopt silver-plated copper surface and anti-oxidation conductive film technology: adopt high Q value Ferrite core coil: There is a cooling air duct to enhance the power of the cooling fan and improve the thermal stability of the power components.

Selection of key components of the instrument and technical description of control

Software part function interface diagram

Complete list of high frequency infrared carbon and sulfur analyzers

Comparison of main technical performance of similar products

CS-9001AD Key components of high frequency infrared carbon and sulfur analyzer

Core technical advantages of CS-9001AD high- frequency infrared carbon and sulfur analyzer

CS-9001AD high- frequency infrared carbon-sulfur analyzer is a domestic classic, best-selling, high-end and intelligent high-frequency infrared carbon-sulfur analyzer .

1. Technology source: the core technology of American LECO and Japan HORIBA infrared carbon and sulfur meter .

2. Detection system: optimization of core circuit (PCB Integrated circuit), long-life infrared emitting light source and drift-free circuit design ensure the long-term stability of the infrared detection cell, and the optimization of key components ensures the ultra-high stability of the cell voltage signal.

3. The zero point signal cannot change for 1 minute (0.1mv beating ) The full-scale signal can only change the last 1 bit (0.1mv beating )

4. Differentiation of design schemes (rich software and hardware functions): international leading dual-carbon, dual-sulfur automatic switching, Synchronous display technology meets the PPM requirements of high carbon and high sulfur in ore, soil, fireworks and firecracker materials, silicon steel, and pure copper materials Detection of high -grade carbon and sulfur (differentiation of analysis schemes, personalized design, different types of materials, different levels of content , different analysis methods for different materials, we have 30 years of experience );

5. Automatic dust removal and dust collection : the unique automatic dust removal and dust collection system reduces the maintenance of equipment and improves the analysis accuracy of detection.

6. Software and data acquisition: full range linear calibration

7. CS-9001AD series high-frequency infrared carbon-sulfur analyzer achieves good linearity in the full range. With weight linear compensation, pressure, flow, temperature and other compensation, it ensures the analysis accuracy of unknown samples from low content to high content in the full range .

Combination system diagram of light source, modulation, absorption cell and detector