PRECISION ULTRASONIC WIND SENSOR
WindObserver 65
Precision wind measurement with selectable output rate.
WindObserver 65 is the WindObserver with the widest choice of output rate, from 1 Hz to 10 Hz. That makes it the option where the receiving system needs a faster update than the rest of the range provides, within a 0 to 65 m/s measurement range.
Open-head design
Accurate at steep flow angles
Up to 65 m/s
Output rate up to 10 Hz
Stainless steel 316
Sealed to IP66, NEMA 4X
Lloyd’s Register approved
Marine type approval
WHERE IT SITS
WindObserver 65 in the WindObserver range
Within the WindObserver family the models differ by measurement range, output rate, build and approvals rather than by measurement principle.
MEASUREMENT
What the WindObserver 65 measures
The WindObserver 65 is a precision 2-axis ultrasonic anemometer.
SPECIFICATION
Full specification
Figures from the WindObserver 65 datasheet, issue 10. Confirm the current issue before ordering.
Measurement
| Wind speed | 0 to 65 m/s (145 mph) |
|---|---|
| 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 | Heating. Calibration traceable to national standards |
Outputs and power
| Output rate | 1, 2, 4, 5, 8 or 10 Hz |
|---|---|
| Outputs | RS422 and RS485, full or half duplex. Modbus output variant available |
| Interface | RS422 or RS485, full or half duplex, baud 1200 to 38400 |
| Supply voltage | Anemometer 9 to 30 V DC |
| Power consumption | Anemometer 30 mA at 12 V DC. Optional heating 3 A at 24 V AC or DC |
Environment
| Ingress protection | IP66 (NEMA 4X) |
|---|---|
| Heating | Optional anti-icing, 3 A at 24 V AC or DC |
Mechanical
| Materials | Stainless steel 316 |
|---|---|
| Weight | 1.4 kg |
Approvals and documentation
| Certifications | Lloyd’s Register Type Approved. EMC EN 61326-1:2013 and EN 60945:2002. Icing tested to MIL-STD-810F |
|---|---|
| Datasheet | 1390-0036 Iss 10 |
COMPARE
WindObserver 65 against WindObserver 75: only what differs
| WindObserver 65 | WindObserver 75 | |
|---|---|---|
| Wind speed | 0 to 65 m/s (145 mph) | 0 to 75 m/s (168 mph) |
| Output rate | 1, 2, 4, 5, 8 or 10 Hz | 1 to 4 Hz |
| Weight | 1.4 kg | 1.7 kg with 2 m cable, 1.3 kg with connector |
| Datasheet | 1390-0036 Iss 10 | 1390-0034 Iss 10 |
Show the 1 rows that are the same
| WindObserver 65 | WindObserver 75 | |
|---|---|---|
| Approvals | Lloyd’s Register Type Approved | Lloyd’s Register Type Approved |
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 65
The parts that fit the WindObserver 65: 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.
Cables
- Cable, 9 pair, cut to length
Connectors
- Connector kit
Mounting
- Bracket for pole or wall mounting
- Base mount, short
- Base mount, long
- Base mount pipe adaptor
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 65 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 65 provides that configuration.
QUESTIONS
Specification questions about the WindObserver 65
What wind speed range does the WindObserver 65 cover?
The WindObserver 65 measures 0 to 65 m/s (145 mph).
What is the difference between the WindObserver 65 and the WindObserver 75?
The WindObserver 65 measures up to 65 m/s (145 mph) with output rates of 1, 2, 4, 5, 8 or 10 Hz, and weighs 1.4 kg. The WindObserver 75 measures up to 75 m/s (168 mph) at 1 to 4 Hz, and weighs 1.7 kg with 2 m of cable or 1.3 kg with a connector.
How accurate is the WindObserver 65?
The WindObserver 65 is specified at wind speed ±2% at 12 m/s, direction ±2° at 12 m/s.
What resolution does the WindObserver 65 report?
The WindObserver 65 reports to 0.01 m/s and 1°.
What output rate does the WindObserver 65 provide?
The WindObserver 65 outputs at 1, 2, 4, 5, 8 or 10 Hz.
What outputs does the WindObserver 65 provide?
The WindObserver 65 provides RS422 and RS485, full or half duplex. Modbus output variant available.
What power supply does the WindObserver 65 need?
The WindObserver 65 requires anemometer 9 to 30 V DC.
What ingress protection does the WindObserver 65 have?
The WindObserver 65 is sealed to IP66 (NEMA 4X).
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 65
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