DLY-9D Fully Automatic Sulfur Analyzer is designed based on the principle of coulometric titration. The microcontroller system controls the temperature of the high-temperature furnace and measures the coulometric titration results, sending corresponding control commands and independently completing related tasks. The instrument is mainly used to determine the total sulfur content in coal, steel, and various minerals. It is the preferred and essential instrument for laboratories in industries such as coal, power, chemical, building materials, metallurgy, geological exploration, commodity inspection, and environmental protection. It complies with the national standard GB/214-2007 “Determination of Total Sulfur in Coal.”

Performance Features:

1. Equipped with a color touch screen and keyboard for dual operation, featuring a Chinese menu-style interface. The structure is simple, intuitive, easy to learn, convenient to operate, and offers stable and reliable performance.
2. The product uses a 7-inch color touch screen as the human-machine interaction component, embedded with a large number of illustrated and easy-to-learn images on how to use the instrument, operate it, install components, debug components, and maintain and repair components. This allows users to quickly master the instrument and become proficient in sulfur quantification testing knowledge in the industry. It is the first in the industry to apply advanced technology with illustrated introductions to various components, real-time self-diagnosis of faults, and prompt solutions.
3. The instrument has real-time fault monitoring and diagnostic prompt functions, which can eliminate potential faults in their early stages and reduce the likelihood of further development of faults. Additionally, it provides detailed illustrated steps for fault handling, significantly reducing after-sales maintenance costs and effort.
4. The instrument adopts an advanced fuzzy PID speed temperature control mode, intelligently judging and adapting to silicon carbide tubes of different resistances, enabling linear heating and high temperature control accuracy. It also effectively protects the silicon carbide tubes and greatly extends their service life.
5. The instrument uses the Pinyin input method, supporting Chinese sample names for convenient sample management. Measurement results can be saved long-term, queried, and printed.
6. The system integrates the high-temperature furnace, magnetic stirrer, air purification device, electrolytic cell, automatic sample feeding mechanism, and microcontroller control circuit into the same chassis, making the entire system aesthetically pleasing, compact, easy to place and connect, and simple to operate and maintain.
7. High-precision, low-drift hardware integration signal circuit design ensures accurate measurement values.
8. Wider and thicker platinum electrolysis electrode (195mm²) and indicator electrode (77mm²), with areas increased by 30% and 4 times respectively compared to ordinary instruments, ensuring larger contact area and more precise and complete integration.
9. A separate microcontroller performs hardware integration during electrolysis, completely overcoming the issue of data omission in software integration, ensuring complete integration and accurate testing.

Technical Parameters:

1. Sulfur measurement range: 0.01-50%.
2. Sulfur resolution: 0.001%.
3. Working furnace temperature: 1150℃ (coal), 900℃ (oil).
4. Temperature control accuracy: ±2.5℃.
5. Sample mass: 10mg~110mg.
6. Carrier gas flow rate: 1000ml/min.
7. Sulfur measurement time: 5 minutes, with automatic endpoint determination by the instrument.
8. Heating rate: 20~25 minutes.
9. Power requirements: Single-phase AC voltage ~220V, 50Hz, power 3KW.
10. Accuracy: Complies with the national standard GB/T214-2007.