WindObserver Ultrasonic Anemometer
Robust ultrasonic wind sensors for challenging environments. Precision wind measurement with stainless steel construction. Models for marine, aviation & hazardous areas.
Description
WindObserver ultrasonic anemometers have a proven record of providing reliable data in critical applications. The product has been selected for use by commercial marine businesses and national navies across the world, as well as being deployed at a range of high volume international airports.
Key Features
- High quality wind measurements up to 65m/s (234 km/h) for normal use
- Models available up to 90m/s (324 km/h) for extreme conditions
- Unheated and heated models to match application and available power
- Robust stainless steel construction for challenging environments
- Intrinsically safe models available (ATEX, IECEx & UKEX certification)
- Comprehensive support includes software and technical advice
Typical Applications
- Wind speed and direction observation
- General purpose marine use (models with Lloyds Register Type Approval)
- Dynamic positioning systems
- Airport weather systems (FAA & CAA approved models)
- Low temperature applications
- Turbine control
- Intrinsically safe applications including offshore rigs
| Measurement | |
|---|---|
| Measurement | Precision 2-axis ultrasonic wind speed and direction |
| Wind speed range | 0–65 m/s (234 km/h) standard (WindObserver 65 / II); up to 0–70 m/s (252 km/h) (WindObserver 70); 0–75 m/s (270 km/h) (WindObserver 75 / IS); 0–90 m/s (324 km/h) (WindObserver 90) |
| Wind speed accuracy | ±2% @ 12 m/s (representative across range) |
| Wind direction range | 0–360° (no dead band) |
| Output frequencies | 1, 2, 4, 5, 8, 10 Hz with flexible averaging from 1–3600 seconds |
| Measurement units | m/s, knots, MPH, KPH, ft/min |
| Output formats | UV, Polar, NMEA, Tunnel |
| Gust measurement | Averaging and gusts to WMO guidelines |
| Measurement principle | Solid-state ultrasonic, no moving parts |
| Models | WindObserver II, 65, 70, 75, 90, RH, IS (Intrinsically Safe) |
| Error checking | Sophisticated error checking and fault reporting; instrumentation status code transmitted alongside measurement outputs |
| Outputs | |
| Output protocols (65/70/75/90/II) | RS422 / RS485 full duplex / half duplex |
| Output protocols (IS) | RS422 & RS232 from power supply and interface; RS422 from anemometer |
| Analogue outputs | Available on WindObserver II (1 digital + 3 optional analogue outputs) |
| Power Requirements | |
| Anemometer power | 9–30 V DC (~30–40 mA @ 12 V DC, anemometer only) |
| Heating power (WindObserver 65 / II) | Anti-icing heating option available |
| Heating power (WindObserver 70 / 75 / 90) | Anti-icing enhanced heating option — 7 A @ 24 V AC or DC (1 W/cm²); ~150 W of electrical heating in the anemometer head |
| Environmental | |
| Operating temperature (unheated) | -40°C to +70°C (typical) |
| Operating temperature (with heating) | -55°C to +70°C |
| Protection rating | IP66 across all WindObserver models |
| Construction | Robust stainless steel housing |
| Calibration (option) | Traceable to national standards; available on all models except WindObserver IS |
| Certification & Compliance | |
| Lloyds Register Type Approval | All WindObserver models |
| FAA & CAA | WindObserver 70 accepted as part of a suitable AWOS (Automatic Weather Observing System) for observation and reporting of surface wind |
| China Classification Society (CCS) | WindObserver II |
| IECEx | WindObserver IS (Certificate of Conformity SIR 13.0159 and SIR 15.0013) |
| ATEX | WindObserver IS (Sira EU Type Examination Certificates 13ATEX 2384, 15ATEX 2014, 00ATEX 2218) |
| UKEX | WindObserver IS (CSAE UK Type Examination Certificates 21UKEX2364, 21UKEX2363) |
| WMO | Averaging and gusts to WMO guidelines |
| WindObserver IS exposed environment testing | IP66, BS EN 60945 |
Datasheets
- WindObserver 65 Datasheet (Iss 10)
- WindObserver 70 Datasheet (Iss 7) + Options
- WindObserver 75 Datasheet (Iss 10) + Options
- WindObserver 90 Datasheet (Iss 13) + Options
- WindObserver II Datasheet (Iss 8)
- WindObserver IS Datasheet (Iss 11)
Manuals
- WindObserver 65 Manual (Iss 8)
- WindObserver 70/75 Manual (Iss 8)
- WindObserver 90 Manual (Iss 5)
- WindObserver II Manual (Iss 28)
- WindObserver RH Manual (Iss 2)
- WindObserver IS User Manual
- WS / GMX / WO Mounting Brackets Factsheet (Iss B-2)
Publications & White Papers
- WindSet Software Manual (Iss 1)
- WindView Software Manual (Iss 1)
- Lloyds Register Type Approval Certificate
- IECEx Certificate of Conformity SIR 13.0159 (Iss 3)
- IECEx Certificate of Conformity SIR 15.0013 (Iss 3)
- Sira EU Type Examination Certificate 13ATEX 2384 (Iss 4)
- Sira EU Type Examination Certificate 15ATEX 2014 (Iss 4)
- Sira EU Type Examination Certificate 00ATEX 2218
- CSAE UK Type Examination Certificate 21UKEX2364
- CSAE UK Type Examination Certificate 21UKEX2363
- China Classification Society (CCS) Certificate (2023)
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