YA-D400 Fixed H2S Gas Leak Detector with 4-20mA & RS485 Output, 205×209×84mm Size, IP67 Rated
The YA-D400 series fixed gas detectors provide reliable monitoring solutions for industrial environments where gas leaks pose significant safety risks. These precision instruments detect hydrogen sulfide (H2S) and other hazardous gases with exceptional accuracy and reliability.
- Real-time gas concentration display with clear backlit screen
- Comprehensive alarm system with fault, low, and high alerts
- Infrared remote control for convenient operation without opening covers
- Multiple output options: 4-20mA, RS485, two-bus, and LoRa communication
- High-performance ARM microprocessor for reliable processing
- Three relay outputs (250V 5A) for automatic control functions
- 40-event alarm history storage capability
- Unit conversion between mg/m³ and μmol/mol for toxic gases
| Parameter | Specification |
|---|---|
| Power Supply | 24V DC |
| Power Consumption | Combustible: ≤4W; Oxygen/Toxic: ≤3W |
| Detection Range | Combustible: 0-100% LEL; Toxic: 0-1000 μmol/mol |
| Accuracy | ±5% FS (sensor dependent) |
| Response Time | Toxic: ≤60 seconds; Combustible: ≤30 seconds |
| Sensor Life | 36 months (sensor dependent) |
| Operating Temperature | Combustible: -40°C to 70°C; Toxic: -20°C to 60°C |
| Protection Rating | IP67 |
| Dimensions | 205 × 209 × 84 mm |
| Weight | 2 kg |
| Transmission Distance | ≤1200 m (RS485, 2-bus, 4-20mA) |
This gas detection system is essential for chemical plants, petroleum refineries, metallurgical facilities, liquefied gas stations, painting operations, and gas transmission systems. It provides continuous monitoring in both indoor and outdoor environments where toxic and combustible gas leaks may occur.
Comprehensive technical support, installation guidance, and maintenance services are available. The product includes a one-year warranty and supports OEM/ODM customization services for specific industrial requirements.
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