I. Requirements Analysis:

In chemical workplaces or inside equipment, the presence of combustible or toxic gases and vapors poses a serious threat to worker safety. To ensure a secure working environment, it is critical to promptly and accurately detect harmful gas concentrations in the air and trigger alarms. Consequently, there is an urgent market demand for a multifunctional gas detection and alarm system capable of long-distance signal transmission and equipped with location capabilities.

II. Product Features:

1. High-Precision Detection: This system employs advanced gas sensor technology to accurately detect combustible or toxic gases and vapors in the air, ensuring data accuracy and reliability.

2. Long-distance transmission: The system supports both shielded three-core (four-core) cable transmission and fiber optic transmission, with maximum transmission distances of 1000 to 2000 meters and 20 to 40 kilometers respectively, meeting transmission requirements across diverse scenarios.

3. Single-mode Multi-core Fiber Optic MODEM Transmission: Utilizing single-mode multi-core fiber optic MODEM transmission technology ensures stable and efficient data transmission while reducing the risk of signal attenuation and interference.

4. Positioning Module: The system incorporates a built-in positioning module capable of accurately pinpointing the source of hazardous gas leaks, providing robust support for rapid response and mitigation.

5. Overlimit Alarm: When harmful gas levels exceed preset thresholds, the system automatically triggers an alarm mechanism. It alerts personnel through audible and visual signals to take immediate action, ensuring personnel safety.

III. Application Scenarios:

1. Chemical Production Sites: During chemical production processes, this system can be used to monitor harmful gas levels in production areas in real time, ensuring the safety and controllability of the production process.

2. Petrochemical Equipment: During the operation of petrochemical equipment, this system can be installed inside the equipment to continuously monitor the concentration of harmful gases in the internal air, thereby preventing accidents.

3. Underground Pipeline Systems: Within underground pipeline systems, this system can detect potential hazardous gas leaks inside pipelines, enabling timely repairs to prevent environmental pollution and safety incidents.

IV. Product Specifications:

1. High-performance smart sensors with a service life of 2-3 years or more;

2. Utilizes an embedded 32-bit ultra-low-power microprocessor, featuring fast response times, minimal detection errors, and high resolution.

3. Configure the infrared remote control to enable menu operations via the remote, allowing cover-free operation in hazardous environments.

4. Intelligent temperature, humidity, and zero-point compensation algorithms, with fully software-automated calibration for target points from Level 2 to Level 4 and above, ensuring measurement accuracy; automatic detection of sensor and component operational status upon startup;

5. 2.31-inch high-definition color display with a large, clear backlight for viewing measurement data under any lighting conditions; intuitive UI with color icon menus and a user-friendly 4-key navigation interface, showcasing thoughtful design and international appeal.

6. Supports switching between concentration units with the same attribute, such as ppm and μmol/mol, or ppm and mg/m³; supports switching between Chinese and English operation menu interfaces.

7. Features data upload functionality, supporting Modbus RS485 protocol and HJ212 protocol data transmission;

8. Real-time data transmission enables accurate local and remote wireless alarm notifications via multiple alert methods (optional);

9. Scientifically engineered mechanical design: The air chamber utilizes military-grade high-strength aluminum profiles, offering exceptional wear and corrosion resistance for demanding industrial environments. Its rational and scientific construction ensures precise real-time monitoring accuracy of the sensor.

10. Automatic storage with customizable intervals; stores up to 200,000 sets of data with date and time stamps. When equipped with an optional TF memory card, it can store over 10 million sets.

11. Real-time detection data and alarm statuses can be transmitted to the security center (optional) via the built-in wireless module, utilizing either short-range RTU wireless transmission or GPRS wireless transmission with unlimited range.

12. Explosion-proof rating: Exd II CT6, certified by the National Center for Explosion-proof Electrical Equipment Inspection;