YA-D400 Fixed Gas Detector with 205×209×84mm Dimensions and 36-Month Sensor Life for Combustible and Toxic Gas Monitoring
The YA-D400 series fixed gas detectors are designed for continuous monitoring of combustible and toxic gases in industrial environments. These wall-mounted detectors are ideal for chemical plants, petroleum facilities, metallurgical operations, liquefied gas stations, painting operations, and gas transmission systems where gas leaks pose significant safety risks.
- Real-time gas concentration display with large, clear backlit screen
- Comprehensive alarm system with fault, low, and high-level alerts
- Infrared remote control operation eliminates need for cover removal
- Three distinct sound and light outputs for different alarm conditions
- Zero, calibration, and test functions for maintenance
- DC4-20mA standard signal output
- Multiple communication options: RS485, two buses, LoRa
- High-performance ARM microprocessor for reliable operation
- Three relay outputs (250V 5A) for automatic control of fans and solenoid valves
- Stores up to 40 high and low alarm records
- Toxic gas units support mg/m³ and μmol/mol conversion
| Parameter | Specification |
|---|---|
| Product Name | YA-D400 Fixed Gas Alarm Detector |
| 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) |
| Minimum Reading | Combustible: 1% LEL; Toxic: 0.1 μmol/mol |
| Response Time | Toxic: ≤60 seconds; Combustible: ≤30 seconds |
| Sensor Life | 36 months (sensor dependent) |
| Sensor Type | Combustible: catalytic combustion; Toxic: electrochemical |
| Detection Mode | Diffused |
| Connection | M20×15 explosion-proof hose with male thread |
| Explosion-proof Rating | Ex d IIC T6 Gb/Ex tD A21 IP67 T80℃ |
| Protection Class | IP67 |
| Operating Temperature | Combustible: -40°C to 70°C; Toxic: -20°C to 60°C |
| Humidity Range | 15% to 95% RH |
| Dimensions | 205×209×84mm |
| Weight | 2kg |
| Transmission Distance | ≤1200m (RS485, 2-bus, 4-20mA) |
Shandong Yaoan Electronic Technology Development Co., Ltd. has specialized in gas detection technology since 2007, with over 16 years of industry experience. The company maintains a 6,000 square meter production facility in Jinan Pilot Free Trade Zone and holds international certifications including ATEX, SIL, CE, FCC, ROHS, and ISO9001. Yaoan serves major enterprises including Sinopec, PetroChina, China Railway Group, and exports to markets worldwide including USA, Germany, Brazil, and South Korea.
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