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Overview
HY-WDS21 ultrasonic wind speed and direction sensor is specially designed for the tunnel application, it’s installed on the tunnel wall and providing real-time tunnel wind data to total control room, as a basic basis for ventilation and operation. At the same time, the analog and digital signals output from sensor can be connected to the PLC in the nearby sub-control room and then to the general control room through optical fiber.
Key features
1. Cast aluminum body, anodized surface for harsh environments in the tunnel
2. Diverse sampling area (WDS21 and WT sampling area is different), can truly reflect the air flow rate in tunnel
3. Ultrasonic measurement free from influence of ambient temperature
4. Non-contact detection,no moving parts, low failure rate
Specification
| Principle | Ultrasonic technology |
| Installation | Wall of tunnel on one-side |
| Range | Wind speed -30m/s~30m/s |
| Accuracy | Wind speed ±0.1m/s |
| Average Time | 0.1 s~60 min adjustable |
| Relay output | 2 ways dry-contact relay output |
| Digital interface | RS232,RS485 |
| Analog output | 4-20 mA output(load < 500Ω) |
| Power supply | 220VAC±10%,50Hz/60Hz |
| Protection Grade | IP66 |
Price, Package, Service
1, Price : EXW, FOB, CIF
2, Payment: 100% T/T in advance, west union or paypal .
3, Packing : standard export packing , including instructions
4, Leading time : 5-8 working days after payment.
5, OEM avaliable
6, Shipment: Express (FedEx, DHL, UPS & TNT) or forwarder (by sea, air)
7. One year free repair for quality warranty
New products from manufacturers at wholesale prices