PRECISION ULTRASONIC WIND SENSOR
WindObserver IS
The intrinsically safe WindObserver, for hazardous areas.
WindObserver IS is the hazardous-area model of the range, certified to ATEX, IECEx and UKEX, and meets EN 60945:2002 for EMC. It is the WindObserver specified where the installation sits in a classified zone.
Open-head design
Accurate at steeper flow angles
No moving parts
Ultrasonic, 0 to 360° direction
Stainless steel 316
Sealed to IP66, NEMA 4X
Intrinsically safe design
ATEX, IECEx and UKEX certified
WHERE IT SITS
WindObserver IS in the WindObserver range
The WindObserver IS 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 IS measures
The WindObserver IS is a precision 2-axis ultrasonic anemometer.
SPECIFICATION
Full specification
Figures from the WindObserver IS datasheet, issue 12. Confirm the current issue before ordering.
Measurement
| Direction range | 0 to 360°, no dead band |
|---|---|
| Accuracy | Wind speed better than 5% RMSE at 12 m/s, direction better than 4° RMSE at 12 m/s |
| Resolution | 0.01 m/s and 1° |
| Options | Mains power adaptor 5319-10-005. Factory calibration traceable to national standards. Individual calibration certificates are not available on this model |
| Not carried | Lloyd’s Register and ABS approvals |
Outputs and power
| Outputs | RS422 and RS232 from the power supply and interface, RS422 from the anemometer |
|---|---|
| Interface | RS422 and RS232, baud 1200 to 38400 |
| Supply voltage | Powered through its certified interface |
Environment
| Ingress protection | IP66 (NEMA 4X) |
|---|
Mechanical
| Materials | Stainless steel 316 |
|---|---|
| Weight | 1.9 kg |
Approvals and documentation
| Certifications | ATEX, IECEx and UKEX. EMC EN 61326-1:2013 and EN 60945:2002. Icing tested to MIL-STD-810F |
|---|---|
| Datasheet | 1954-004 Iss 12 |
COMPARE
WindObserver IS against WindObserver 65: key differences
| WindObserver IS | WindObserver 65 | |
|---|---|---|
| Wind speed range | 0 to 75 m/s | 0 to 65 m/s |
| Weight | 1.9 kg | 1.4 kg |
| Approvals | ATEX, IECEx, UKEX; EN 60945:2002 (EMC) | Lloyd’s Register Type Approved |
| Datasheet | 1954-004 Iss 12 | 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 IS
The parts that fit the WindObserver IS: cable, mounting, set-up kit and spares.
Chosen at order. WindObserver IS orders must carry the full IECEx and ATEX certification details. Other spares are available, so contact us to discuss what you need.
Connectors
- Connector kit, 20 way, with backshell
Order accessories with your sensor or on their own. Quote the part number when you get in touch.
BEFORE YOU SPECIFY
Is the WindObserver IS the correct configuration?
Before specifying, confirm that the WindObserver IS meets the following requirements of your application:
- the wind speed range the application requires
- the output rate the host system requires
- 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 host system requires
QUESTIONS
Specification questions about the WindObserver IS
How accurate is the WindObserver IS?
The WindObserver IS is specified at wind speed better than 5% RMSE at 12 m/s, direction better than 4° RMSE at 12 m/s.
What is the primary difference between the WindObserver IS and the WindObserver 65?
Hazardous-area certification. The WindObserver IS carries ATEX, IECEx and UKEX approvals for classified areas. The WindObserver 65 is Lloyd’s Register Type Approved for marine use. The IS weighs 1.9 kg against 1.4 kg.
What resolution does the WindObserver IS report?
The WindObserver IS reports to 0.01 m/s and 1°.
What outputs does the WindObserver IS provide?
The WindObserver IS provides RS422 and RS232 from the power supply and interface.
What ingress protection does the WindObserver IS have?
The WindObserver IS is sealed to IP66 (NEMA 4X).
What is the WindObserver IS made from?
Stainless steel 316.
How much does the WindObserver IS weigh?
The WindObserver IS weighs 1.9 kg.
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 IS
- 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.