The DNA302.1 heated anemometer delivers precision wind speed measurements in icy conditions. Featuring a 32-step optoelectronic disk, self-activating heater (-20°C threshold), and IP66-rated anodized aluminum housing, it ensures reliable 0–75 m/s monitoring for wind farms, meteorological stations, and harsh environments. Includes frequency output (0–883 Hz) and E-Log/Alpha-Log compatibility.
Overview
The DNA302.1 heated anemometer delivers precision wind speed measurements in icy conditions. Featuring a 32-step optoelectronic disk, self-activating heater (-20°C threshold), and IP66-rated anodized aluminum housing, it ensures reliable 0–75 m/s monitoring for wind farms, meteorological stations, and harsh environments. Includes frequency output (0–883 Hz) and E-Log/Alpha-Log compatibility.
Detailed Description
All-Weather Wind Monitoring
Designed for critical applications where ice compromises accuracy, the DNA302.1 automatically activates its heater at 4°C to maintain performance in subzero temperatures. The 3-cup design with optoelectronic disk achieves 0.06 m/s resolution, capturing subtle wind variations for energy production forecasting and climate research.
Robust Engineering for Extreme Sites
With anodized aluminum construction and IP66 protection, this anemometer withstands corrosion, dust, and water ingress. Its 32-step tachometer ensures ±0.25 m/s accuracy (0–25 m/s), validated by ISO17025-accredited calibration. Ideal for Arctic research, mountain-top installations, and offshore wind turbines.
Key Advantages
- Integrated heater for ice-free operation down to -20°C
- Ultra-low threshold (0.26 m/s) captures faint breezes
- 0.4W base power + 20W heater for energy-efficient cold-climate use
- Linear frequency output (13 Hz/m/s) for seamless data logging
- VDI/ASTM-compliant delay distance (4.8m @10 m/s)
Technical Specifications
| Parameter | Value |
|---|---|
| Order number | DNA302.1 |
| Measuring range | 0–75 m/s (damage limit) |
| Accuracy | ±0.25 m/s or 3% (0–25 m/s), ±2% (>25 m/s) |
| Resolution | 0.06 m/s |
| Output | 0–883 Hz (13 Hz/m/s) |
| Power supply | 24 V DC/AC @ 20W (heater) |
| Heater activation | 4°C (operates >-20°C) |
| Protection | IP66, EN 61326-1 EMC |
| Operative temperature | -40°C to 70°C (ice-free*) |
| Weight | 1.3 kg |
| Mounting | Ø 48–50 mm mast |
*Heater enables ice operation
Usage Guidelines
Installation & Operation
Mount vertically on stable masts using DYA046 coupling bars for multi-sensor arrays. Use ALIEM module for E-Log/Alpha-Log integration. Heater draws 20W at 24V—ensure power supply adequacy. Avoid cable runs exceeding 100m without signal amplification.
Maintenance & Calibration
Inspect bearings annually in high-wind sites. Use DNA204.R rotors and MM2025 bearings for replacements. Request ISO17025 certificates (SVACA2216) for traceable recalibration. Deactivate heater above 4°C to conserve power.
| Measuring range | 0–75 m/s |
| Operating Temperature Range | -35°C to 70°C (ice-free) |
| Brand | LSI-Lastem |
