PRECISION ULTRASONIC WIND SENSOR
WindObserver II
Marine wind measurement with Lloyd’s and ABS approval.
WindObserver II carries both Lloyd’s Register Type Approval and an ABS Product Design Assessment, which is the combination specified on vessels classed with ABS. It measures 0 to 65 m/s.
Open-head design
Accurate at steep flow angles
Up to 65 m/s
Ultrasonic, no moving parts
Stainless steel 316
Sealed to IP66, NEMA 4X
Lloyd’s Register approved
ABS Product Design Assessed
WHERE IT SITS
WindObserver II in the WindObserver range
The WindObserver II is the appropriate choice where the specification below matches the application. Within the WindObserver family the models differ by measurement range, output rate, build and approvals rather than by measurement principle.
MEASUREMENT
What the WindObserver II measures
The WindObserver II is a precision 2-axis ultrasonic anemometer.
SPECIFICATION
Full specification
Figures from the WindObserver II datasheet, issue 8. Confirm the current issue before ordering.
Measurement
| Wind speed | 0 to 65 m/s |
|---|---|
| Direction range | 0 to 360°, no dead band |
| Accuracy | Wind speed ±2% at 12 m/s, direction ±2° at 12 m/s |
| Resolution | 0.01 m/s and 1° |
| Options | Calibration traceable to national standards |
Outputs and power
| Outputs | RS422 and RS485, full or half duplex. Modbus output variant available |
|---|---|
| Interface | RS422 or RS485, full or half duplex, baud 1200 to 38400 |
Environment
| Ingress protection | IP66 (NEMA 4X) |
|---|---|
| Heating | Anti-icing |
Mechanical
| Materials | Stainless steel 316 |
|---|
Approvals and documentation
| Certifications | Lloyd’s Register Type Approval and ABS Product Design Assessment. EMC EN 61326-1:2013 and EN 60945:2002. Icing tested to MIL-STD-810F |
|---|---|
| Datasheet | WindObserver_II 1390-0030 Iss 8 |
COMPARE
WindObserver II against WindObserver 65: only what differs
| WindObserver II | WindObserver 65 | |
|---|---|---|
| Wind speed | 0 to 65 m/s | 0 to 65 m/s (145 mph) |
| Approvals | Lloyd’s Register Type Approval, ABS Product Design Assessment | Lloyd’s Register Type Approved |
| Datasheet | WindObserver_II 1390-0030 Iss 8 | 1390-0036 Iss 10 |
The nearest sibling in the range. Confirm which specification the application actually needs before ordering either. Compare the whole range
ACCESSORIES
Accessories for the WindObserver II
The parts that fit the WindObserver II: cable, mounting, set-up kit and spares.
Chosen at order. The base connector, cable gland and base mount are part of the WindObserver order code. The parts below are for installation, set-up and spares.
Mounting
- Bracket for pole or wall mounting
Set-up and configuration
- USB to RS422, RS485 and RS232 adaptor
Spares
- Bird deterrent kit
- Integrity check chamber
Order accessories with your sensor or on their own. Quote the part number when you get in touch.
BEFORE YOU SPECIFY
Is the WindObserver II the correct configuration?
Before specifying, confirm:
- the wind speed range the site actually sees
- the output rate the receiving system needs
- the operating temperature and whether heating is required
- any approval or certification the installation demands
- the mounting arrangement and cable or connector choice
- the interface and output the receiving system expects
If those match, the WindObserver II provides that configuration.
QUESTIONS
Specification questions about the WindObserver II
What wind speed range does the WindObserver II cover?
The WindObserver II measures 0 to 65 m/s.
What is the difference between the WindObserver II and the WindObserver 65?
Approvals. The WindObserver II holds Lloyd’s Register Type Approval and an ABS Product Design Assessment. The WindObserver 65 is Lloyd’s Register Type Approved. Both measure 0 to 65 m/s.
How accurate is the WindObserver II?
The WindObserver II is specified at wind speed ±2% at 12 m/s, direction ±2° at 12 m/s.
What resolution does the WindObserver II report?
The WindObserver II reports to 0.01 m/s and 1°.
What outputs does the WindObserver II provide?
The WindObserver II provides RS422 and RS485, full or half duplex. Modbus output variant available.
What ingress protection does the WindObserver II have?
The WindObserver II is sealed to IP66 (NEMA 4X).
Is the WindObserver II heated?
The WindObserver II is heated: anti-icing.
What is the WindObserver II made from?
Stainless steel 316.
Have an application to discuss?
Speak to our team
Tell us what you need to measure, where and under what conditions. We’ll help you work out the appropriate approach.
Enquiring about WindObserver II
- Our team replies. Not an account manager, and not a queue.
- We aim to respond in one working day. Monday to Friday.
- No obligation. Plenty of these end with us saying it is not our product.