1. The vertical integrated structure is adopted, which combines the automatic sample feeding, sample introducing mechanism, high temperature pyrolysis furnace, electrolytic cell, stirrer, air purification system and other components together, making the instrument structure more compact, reasonable and stable.

2. The instrument features an external electronic balance with automatic weighing via button operation. It supports loading up to 24 samples per run, including queue management and priority repositioning functions, where newly added samples gain early testing priority. A specially designed flat-bottomed corundum porcelain boat minimizes sample jamming. The program-controlled system automates temperature regulation, sample delivery, and analysis, with results stored and printed automatically. The system also allows mid-run sample replenishment, significantly enhancing efficiency and achieving true unmanned operation.

3. The entire testing process after sample loading can be fully automated, significantly enhancing testing efficiency. The measurement process is controlled by a program: fully automatic continuous sample delivery, fully automatic control of test initiation and termination, fully automatic coulometric titration, fully automatic data processing and storage, and data printing. Additionally, the instrument features network connectivity, enabling remote data sharing and remote upload of data reports.

4. The electrolytic current of coulomb titration is constant, and the software realizes the integral of coulomb, so as to ensure the titration result. The determination time is about 5 minutes according to different coal samples. The speed is better than the Aisika gravimetric analysis and the high temperature combustion neutralization method.

5. The system error can be corrected by the software directly, which ensures the accuracy of the test results of the samples.

6. The furnace chamber employs imported advanced energy-saving materials, delivering superior thermal insulation and rapid temperature rise, while being environmentally friendly, low-carbon, and energy-efficient. Its PID temperature control system ensures high precision, effectively extending the service life of both the furnace chamber and silicon carbide tubes. Additionally, the enhanced sample air intake function enables rapid and complete combustion, ensuring testing accuracy.

7. The new structure of the airway makes it very convenient and practical to replace the silica gel loading and unloading drying tube, and it has good airtightness and low failure rate. The imported air pump is used to ensure the stable and reliable air source.

8. The entire instrument is designed with modular components, which are easy to disassemble and interchangeable, greatly simplifying installation, debugging, maintenance, and after-sales service. The automatic continuous sample delivery mechanism is also modularized, allowing batch-to-batch interchangeability, ensuring user convenience and eliminating all concerns.

9. The system is equipped with a dedicated fault diagnosis and detection program. During operation, it monitors all functional components of the instrument in real time, providing fault detection and alarm alerts. Additionally, it features a powerful debugging menu, greatly facilitating on-site installation, debugging, and troubleshooting. Remote diagnosis and technical support can also be achieved via the internet.

10. The PID (proportional, differential, integral) temperature control algorithm is adopted, which is accurate and fast.

11. The contactless switch is used, which has the measures of break protection, hardware over temperature protection and electrolyte anti reflux, and is safe and reliable.

12. The innovative multi-point dynamic coefficient correction method is adopted to ensure the accuracy of the test results of high, medium and low sulfur content coal.

13. The plug and play of USB technology reduces the requirement of computer, and one microcomputer can control many fixed sulfur analyzer or combine with other instruments to form a comprehensive tester.