YAOAN YA-D400 Fixed Hydrogen Gas Analyzer H2S Detector with 24V Power, 0-100% LEL Range, IP67 Rating
Professional fixed online gas detection system for industrial safety monitoring of combustible and toxic gases including hydrogen sulfide (H2S).
The YA-D400 series point-type gas detectors provide critical safety monitoring in industrial environments including chemical plants, petroleum facilities, metallurgy operations, liquefied gas stations, painting operations, and gas transmission systems.
- Real-time gas concentration display with large, clear backlit screen
- Triple alarm system: fault, low concentration, and high concentration alerts
- Infrared remote control operation - no need to open cover
- Multiple communication options: RS485, two-wire bus, LoRa, 4-20mA
- High-performance ARM microprocessor for reliable operation
- Three relay outputs (250V 5A) for automatic fan and solenoid valve control
- 40-event alarm history storage
- Unit conversion capability for toxic gases (mg/m³ and μmol/mol)
- Zero, calibration, and test functions for maintenance
| Parameter | Specification |
|---|---|
| Power Supply | 24V DC (Combustible: ≤4W; Oxygen/Toxic: ≤3W) |
| Detection Range | Combustible: 0-100% LEL; Oxygen/Toxic: 0-1000 μmol/mol |
| Accuracy | ±5% FS (sensor dependent) |
| Response Time | Toxic: ≤60 seconds; Combustible: ≤30 seconds |
| Sensor Life | 36 months (sensor dependent) |
| Detection Mode | Diffusion |
| Operating Temperature | Combustible: -40°C to 70°C; Toxic: -20°C to 60°C |
| Dimensions | 205 × 209 × 84 mm |
| Weight | 2 kg |
| Protection Rating | IP67, Ex d IIC T6 Gb/Ex tD A21 IP67 T80℃ |
Ideal for monitoring hazardous areas in:
- Chemical processing plants
- Oil and gas production facilities
- Manufacturing operations
- Warehouse and storage areas
- Liquefied gas stations
- Metallurgical facilities
- Professional installation guidance and support
- Comprehensive troubleshooting assistance
- Maintenance and repair services
- Firmware and software updates
- Product training and education
Detects combustible gases including methane, propane, butane, natural gas, and hydrogen sulfide (H2S).
0-100% LEL (Lower Explosive Limit) for combustible gases.
Yes, designed for both indoor and outdoor industrial environments with IP67 protection.
≤60 seconds for toxic gases and ≤30 seconds for combustible gases.
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