The KDXJ-10 is an advanced SF6 gas leak monitoring and alarm system based on the acoustic velocity principle, enabling real-time quantitative measurement of SF6 concentrations. It overcomes the limitations of traditional qualitative methods, delivering precise data with dual-differential signal processing to minimize temperature and humidity interference. Powered by 24V DC for enhanced safety, it supports multi-point networking (up to 120 nodes per substation) and remote monitoring via fiber, Ethernet, or telephone lines. The system features a large LCD display, data logging, trend analysis, and alarm functions, making it a comprehensive solution for substation safety and predictive maintenance.

• Quantitative SF6 leak detection using acoustic velocity principle, replacing qualitative methods for accurate readings.
• Dual-differential signal processing eliminates temperature and humidity interference, ensuring high measurement stability.
• 24V DC power supply to collection points enhances system safety compared to 220V AC systems.
• Multi-point detection capability supports up to 120 monitoring nodes per substation for comprehensive coverage.
• Field bus design uses a single cable to connect all collectors and host, simplifying installation and improving adaptability.
• CDT communication protocol enables reliable data transmission to remote control centers with extensive software features.
• Multiple communication media options (fiber, Ethernet, carrier wave) for flexible remote monitoring deployment.
• Optional infrared detection with voice prompts enhances on-site safety awareness for personnel.
• Maintenance-free design with no adjustable components ensures long-term reliability and ease of use.
• Built-in data storage for alarm records and historical measurements, supporting query and analysis functions.

• Model: KDXJ-10 (System based on KDXJ-8 platform)
• Packaging Dimensions: 700mm × 450mm × 320mm (L×W×H), Gross Weight: 56kg
• SF6 Measurement Range: 0~30000ppmv, Accuracy: ≤±2% F.S.
• Oxygen Measurement Range: 0~25%, Alarm Limit: 18%, Accuracy: ≤0.4% (O₂ ≥21%)
• Operating Environment: Temperature -10°C~+50°C, Humidity ≤95%RH, Atmospheric Pressure 86kPa~106kPa, Seismic Grade 7
• Power Supply: Main unit AC220V/50Hz; Collection points 24V DC
• Communication Interface: RS485/CAN, supports fiber, Ethernet, and telephone line transmission
• Alarm Functions: Early leak location, automatic alarm, and interlocking for SF6 and O₂ thresholds
• Data Storage: Large-capacity memory for historical data and alarm records with query functionality
• Compliance Standards: JJG 914-1996, Electrical Safety Work Procedures, GB/T 17626 (EMC standards)