YA-D400 Fixed Gas Detector with 205×209×84mm Size, 24V Power Supply for VOC and Toxic Gas Monitoring
Professional-grade photoionization detector for continuous monitoring of volatile organic compounds (VOCs) and toxic gases in industrial environments. Features wall-mounted installation with multiple communication options and comprehensive alarm systems.
The YA-D400 series point type gas detectors are essential safety instruments for chemical plants, petroleum facilities, metallurgy operations, liquefied gas stations, painting operations, and gas transmission systems. These detectors provide continuous monitoring of toxic and combustible gases to prevent potential disasters.
- Real-time gas concentration display with clear backlit screen
- Multiple alarm types: fault, high, and low concentration alerts
- Infrared remote control operation without opening the cover
- Three relay outputs (250V 5A) for automatic control of ventilation systems
- Multiple communication modes: RS485, two buses, and LoRa wireless
- Data storage for 40 high and low concentration records
- High-performance ARM microprocessor for reliable operation
- Standard DC4-20mA signal output for system integration
- Zero, calibration, and test functions for accuracy maintenance
- Sound and light alarm outputs for different scenarios
- Unit conversion between mg/m³ and μmol/mol
| Parameter | Specification |
|---|---|
| Power Supply | 24V DC (Combustible: ≤4W; Oxygen/Toxic: ≤3W) |
| Detection Range | Combustible: 0-100%LEL; Toxic: 0-1000 μmol/mol |
| Precision | ±5% FS (sensor dependent) |
| Response Time | Toxic: ≤60 seconds; Combustible: ≤30 seconds |
| Sensor Life | 36 months (depending on sensor type) |
| 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℃ |
| Transmission Distance | ≤1200m (RS485, 2-bus, 4-20mA) |
Ideal for chemical processing plants, oil and gas refineries, wastewater treatment facilities, research laboratories, and industrial settings where toxic gases may be present. The YA-D400 provides reliable detection of carbon monoxide (CO), nitrogen dioxide (NO2), hydrogen sulfide (H2S), sulfur dioxide (SO2), and other volatile organic compounds.
This detector can detect various toxic gases including carbon monoxide (CO), nitrogen dioxide (NO2), hydrogen sulfide (H2S), and sulfur dioxide (SO2).
The response time is less than 30 seconds for combustible gases and ≤60 seconds for toxic gases.
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