3-Axis Horizontal-Head Research Anemometer
Gill 3-axis Research range of ultrasonic anemometers offers users a number of different instruments. This range is valued for the quality of its measurements and is used by recognised experts to gather data they reply upon for their research and publications.
The Research range includes models featuring horizontal head configurations for highly accurate vertical flow analysis, with minimal interruption from anemometer geometry. These models have a built in inclinometer to assist set-up on towers or masts.
The HS-50 has been designed for scientific research applications requiring accurate 3-axis wind speed and direction information.
This instrument utilises advanced ultrasonic measurement technology, with a unique horizontal head design that allows for more accurate measurement of vertical flows with minimal interruption from the anemometer geometry. The head features a built-in inclinometer for simple positioning of the instrument on a tower or mast. A separate electronic unit allows easy access to the PRT and 6 analogue inputs.
HS-50 will monitor wind speeds of 0-45m/s, with a fast sampling rate of 50 Hz. The instrument can be positioned close to the ground or to crop and tree canopies for accurate measurement of surface turbulence.
- Precision 3-Axis Sonic Anemometer
- Horizontal Head for Minimal Flow Disturbance
- 0-45m/s wind speed
- U, V, W Vector Outputs
- Stainless Steel Construction
- 50Hz Output Rate
- 0-359º wind direction
| WIND SPEED | |
| Range | 0 - 45 m/s |
| Accuracy | <1% RMS |
| Resolution | 0.01 m/s |
| DIRECTION | |
| Range | 0 - 359° |
| Accuracy | <±1° RMS |
| Resolution | 1° |
| ULTRASONIC MEASUREMENT | |
| Ultrasonic sampling rate | 50 Hz |
| Parameters | UVW, Speed of Sound |
| SPEED OF SOUND | |
| Range and resolution | 300 - 370 m/s, 0.01/s |
| Accuracy | <±0.5% @20°C |
| DIGITAL OUTPUT | |
| Communication | RS422 full duplex, 8 data bits, 1 stop bit, no parity |
| Baud rates | 2400 - 115200 |
| Output parameters | Selectable 0.4 - 50 Hz |
| ANALOGUE INPUTS | |
| Quantity | 6 differential inputs |
| Sampling rate | 50 Hz |
| Input range/resolution | ±5V, 14 bits |
| Accuracy | <0.1% of FSR |
| *Accuracy specification applies for wind speeds <32m/s and for wind incidence <±150° in the horizontal plane and up to ±50° from the horizontal | |
| ANALOGUE OUTPUTS (VIA SUPPLIED PCIA) | |
| Quantity | 7 (U, V, W, SoS, PRT+2 analogue outputs) |
| Scale | ±10, ±20, ±30, ±60m/s |
| Update rate | 0.4 to 50 Hz |
| Range and resolution | ±2.5 V, 14 bits |
| Accuracy | <0.25% of FSR |
| PRT INPUT (PRT100 NOT INCLUDED) | |
| Input resolution | 0.01°C |
| Input accuracy | <0.01°C (from 0°C to +50°C) <0.15°C (from -40°C to +60°C) |
| INCLINOMETER | |
| Range and resolution | ±20°, 0.01° |
| Null repeatability | ±0.15° |
| Accuracy | ±0.3° (from -10° to +10° of inclination) |
| POWER REQUIREMENT | |
| Anemometer | 9-30 VDC (<150mA @ 24 VDC or 300mA @ 12 VDC) |
| ENVIRONMENTAL | |
| Operating temperature | -40°C to +60°C |
| Protection class | IP65 |
| Precipitation | 300mm/hr |
| EMC | EN 50081-1: 1992 (Emissions) EN 50082-1: 1992 (Immunity) |
