The DNB205.2 ultrasonic anemometer delivers maintenance-free wind speed/direction monitoring with RS232 output. Featuring Luran housing, IP66 protection, and 0.1 m/s resolution, it operates at 11mA power across -40°C to 60°C. Ideal for lightweight weather stations and sites requiring ice-resistant measurements.
Overview
The DNB205.2 ultrasonic anemometer delivers maintenance-free wind speed/direction monitoring with RS232 output. Featuring Luran housing, IP66 protection, and 0.1 m/s resolution, it operates at 11mA power across -40°C to 60°C. Ideal for lightweight weather stations and sites requiring ice-resistant measurements.
Detailed Description
Maintenance-Free Wind Monitoring
As a solid-state ultrasonic sensor, the DNB205.2 eliminates moving parts vulnerable to icing and wear. Its 2-axis (U-V) acoustic measurement captures 0–60 m/s winds with ±0.3 m/s accuracy, making it perfect for remote meteorological stations and rooftop installations where reliability is critical.
Compact and Energy-Efficient Design
With dimensions of 110x126 mm and 0.5kg weight, this anemometer minimizes site impact. The 12–30V DC power supply draws only 11mA @12V—enabling solar-powered operation. RS232 output via Modbus-RTU protocol ensures plug-and-play integration with E-Log and Alpha-Log data loggers.
Key Advantages
- Zero moving parts: immune to icing, corrosion, and mechanical failure
- Fast 250ms response time captures wind gusts accurately
- 0.1 m/s threshold detects subtle breeze changes
- IP66-rated Luran housing withstands UV, salt, and dust
- Direct RS232 output for simplified wiring
Technical Specifications
| Parameter | Value |
|---|---|
| Order number | DNB205.2 |
| Wind speed range | 0–60 m/s |
| Speed accuracy | ±0.3 m/s or 5% (0.02–35 m/s), 10% (>35 m/s) |
| Direction accuracy | ±3° (>1 m/s) |
| Output | RS232 (Modbus-RTU) |
| Power supply | 12–30V DC |
| Consumption | 11 mA @12V |
| Connector | 10-pin (MG2267) |
| Mounting | Ø 35–50 mm pole (included) |
| Operative temp. | -40°C to 60°C |
Usage Guidelines
Installation & Integration
Mount vertically using included pole clamp. Use DWA054/DWA104/DWA254 cables (5/10/25m) with MG2267.R connectors. For RS232 data logging, connect directly to E-Log/Alpha-Log via ALIEM module. Ensure 1m clearance from obstacles.
Optimization Tips
Avoid ice accumulation—snowfall requires heated models (e.g., DNB305.2). Calibrate direction relative to true north during setup. For ISO9001 certification (SVICA2203/SVICA2304), validate biennially.
| Brand | LSI-Lastem |
