Lambrecht 002 Combined Anemometer and Wind Vane
| Brand | Lambrecht |
|---|---|
| Origin | Germany |
| Model | 002 |
| Measurement Range (Wind Speed) | 0.3–75 m/s |
| Accuracy (Wind Speed) | ±0.3 m/s (≤10 m/s), ±1% FS (10–50 m/s) |
| Resolution (Wind Speed) | < 0.1 m/s |
| Starting Threshold (Wind Speed) | < 0.3 m/s |
| Measurement Range (Wind Direction) | 0–360° |
| Resolution (Wind Direction) | 2.5° |
| Output Signals | 4–20 mA (0–360°), 3 × 0–10 VDC (analog, electrical wave format) |
| Starting Threshold (Wind Direction) | < 0.7 m/s |
| Data Storage | Integrated SD card supporting ≥1 year of continuous logging |
| Power Supply | Included dedicated DC power system |
| Connectivity | Pre-wired industrial-grade cable assembly |
Overview
The Lambrecht 002 Combined Anemometer and Wind Vane is a precision-engineered, field-deployable environmental sensor system designed for long-term, unattended operation in demanding outdoor environments. Based on proven cup-and-vane mechanical transduction principles, the device employs calibrated aerodynamic rotor assemblies and precision potentiometric or optical angular encoders to deliver traceable, NIST-traceable–compatible wind speed and direction measurements. Its dual-sensor architecture—integrated into a single robust housing—eliminates spatial separation errors common in discrete anemometer/vane installations, ensuring synchronized temporal sampling and minimizing vector averaging uncertainty. Developed by Lambrecht GmbH, a German manufacturer with over 150 years of meteorological instrumentation heritage, the 002 complies with core design philosophies of DIN 13428, IEC 61000-6-2 (EMC immunity), and WMO Guide to Meteorological Instruments and Methods of Observation (CIMO Guide, Chapter 9). It is engineered for high reproducibility under variable thermal gradients, salt-laden marine air, and high-velocity turbulent flow conditions typical of offshore platforms, wind farm sites, and coastal monitoring networks.
Key Features
- Monolithic mechanical design integrating both wind speed and wind direction sensing elements within a single IP66-rated aluminum alloy housing, reducing installation complexity and alignment drift.
- Three-cup anemometer with aerodynamically optimized hemispherical cups and low-friction magnetic bearing system, delivering stable rotational response across the full 0.3–75 m/s range.
- Eight-blade directional vane with balanced moment arm geometry and sealed conductive polymer potentiometer, enabling 2.5° directional resolution and repeatable 0–360° output linearity.
- Factory-calibrated analog outputs: isolated 4–20 mA loop for wind direction (linear 0–360° mapping) and three independent 0–10 VDC channels for wind speed (pulse frequency), direction (voltage proportional), and status diagnostics.
- Onboard data acquisition module with embedded real-time clock, configurable sampling intervals (1 Hz to 10-min averages), and removable industrial SD card supporting ≥12 months of timestamped 10-second interval data at default settings.
- Integrated power management system including wide-input-range DC converter (10–36 VDC), surge protection (IEC 61000-4-5 Level 3), and low-power sleep mode during extended low-wind periods.
Sample Compatibility & Compliance
The Lambrecht 002 is validated for continuous deployment across Class I–III exposure categories per IEC 60721-3-3, including offshore marine (salt fog, UV degradation), arctic (−40°C to +70°C operational envelope), and industrial zones with particulate loading up to ISO 14644-1 Class 8 ambient conditions. It meets structural wind load requirements per EN 1991-1-4 for mounting heights up to 10 m AGL. All materials—including stainless steel fasteners, UV-stabilized polymer housings, and gold-plated signal contacts—are selected to comply with RoHS 2011/65/EU and REACH SVHC regulations. Calibration certificates are issued per ISO/IEC 17025:2017 by Lambrecht’s accredited metrology lab, with traceability to PTB (Physikalisch-Technische Bundesanstalt) reference standards.
Software & Data Management
Data retrieval is supported via standard FAT32-formatted SD cards readable on any Windows/Linux/macOS host. Lambrecht provides free configuration utility software (Lambrecht ConfigTool v3.x) for setting sampling parameters, time synchronization, alarm thresholds (e.g., wind gust >25 m/s), and firmware updates. Raw binary logs are convertible to CSV or NetCDF formats using open-source Python libraries (lambrechtio). The system supports integration into SCADA platforms via Modbus RTU (optional RS-485 adapter) and complies with IEC 62443-3-3 security profile for industrial control systems. Audit trails, user access logs, and data integrity checksums (CRC-32) are maintained per GLP-compliant environmental monitoring workflows.
Applications
- Wind resource assessment for pre-construction feasibility studies and post-installation performance validation of utility-scale wind farms.
- Real-time meteorological input for port authority decision support systems managing vessel berthing, crane operations, and cargo handling safety protocols.
- Long-term climatological monitoring by national weather services and research institutions participating in GCOS (Global Climate Observing System) surface station networks.
- Environmental impact assessments (EIA) requiring baseline wind data for air dispersion modeling under EPA Method 106 or EEA Technical Guidance Note 12.
- Structural health monitoring of tall infrastructure (bridges, transmission towers, offshore rigs) where cross-wind loading and vortex shedding analysis depend on high-temporal-resolution vector wind data.
FAQ
What is the recommended recalibration interval for the Lambrecht 002 under continuous outdoor operation?
Lambrecht recommends annual recalibration for applications requiring compliance with ISO 17025 or regulatory reporting; biennial verification is acceptable for non-regulated monitoring if field zero checks (no-wind condition) remain within specification.
Can the 002 be integrated with third-party data loggers such as Campbell Scientific CR1000X or HOBO U30?
Yes—the 4–20 mA and 0–10 VDC analog outputs are compatible with standard industrial data loggers. Detailed wiring diagrams and scaling coefficients are provided in the technical manual.
Does the device support wireless telemetry or cellular transmission?
The base model does not include built-in RF or LTE modules; however, it interfaces seamlessly with external telemetry gateways (e.g., Sierra Wireless RV50X) via its analog outputs and digital status lines.
Is the SD card hot-swappable while the unit remains powered?
No—power must be cycled to ensure filesystem integrity. The unit implements safe-write protocols and journaling to prevent corruption during unexpected power loss.
What mounting hardware is included with the standard delivery?
A universal 32 mm OD mast clamp with stainless steel M8 fasteners, leveling bubble, and torque-specification wrench are supplied. Optional guy-wire kits and lightning protection kits are available separately.
