The microcomputer sulfur determinator is based on the principle of coulometric titration (refer to GB/T 214—1996). The microcontroller system is responsible for controlling the temperature rise of the high-temperature furnace, collecting temperature and measurement result data, and transmitting the data to the main control microcomputer. The microcomputer system processes the data, displaying furnace temperature, measurement results, sample feeding position, and other information, while sending control commands to the microcontroller system. When the device operates in offline mode, the microcontroller system independently completes all tasks. This instrument can work with a microcomputer or operate offline. To enter microcomputer working mode, press a non-numeric key such as the OK key while turning on the main power. To enter offline working mode, press any numeric key while turning on the main power. If no selection is made, the system enters the previous state.

Features of the microcomputer sulfur determinator:

1. The system is used to measure the sulfur content in combustible materials such as coal, coke, and petroleum.

2. The entire testing process is automatically controlled by the microcomputer but can also operate independently without it.

3. Calibration during experiments is convenient and intuitive.

4. Measurement results can be stored long-term, queried, and printed.

5. The system operating temperature can be set by the user via software between 600°C and 1150°C (1050°C for coal measurement, and 800°C for petroleum measurement as selected by the user).

6. The communication between the microcomputer and the microcontroller system uses a standard RS232 serial interface, featuring simple wiring, reliable transmission, long transmission distance, and low failure rate.

7. The microcontroller system controls the temperature of the high-temperature furnace, collects measurement data, and transmits the data to the main control microcomputer via a serial line for data processing, working in coordination with the microcomputer's main program.

The overall performance of the system is significantly improved.

8. The system integrates the high-temperature furnace, magnetic stirrer, air purification device, electrolytic cell, automatic sample feeding mechanism, and microcontroller control circuits reasonably within the same chassis, making the entire system aesthetically pleasing, compact, easy to place and connect, and simple to operate and maintain daily.