RESEARCH 3-AXIS ULTRASONIC ANEMOMETER
R3-50
Research-grade 3-axis measurement at 50 Hz.
R3-50 is the 50 Hz member of the Research range, with the symmetrical head and the aluminium and carbon fibre build. It is specified for flux and turbulence work where 50 Hz is sufficient and the dataset has to stand up to review.
Symmetrical head
Aluminium and carbon fibre
50 Hz output rate
For eddy covariance and flux
PRT and analogue inputs
Available as options
-40 °C to +60 °C
IP65, 9 to 30 V DC
WHERE IT SITS
R3-50 in the Research range
Within the Research 3-Axis family the models differ by measurement range, output rate, build and approvals rather than by measurement principle.
MEASUREMENT
What the R3-50 measures
The R3-50 is a research-grade 3-axis ultrasonic anemometer.
SPECIFICATION
Full specification
Figures from the R3-50 datasheet, issue 3. Confirm the current issue before ordering.
Measurement
| Wind speed range | 0 to 45 m/s |
|---|---|
| Direction range | 0 to 359° |
| Axes | 3-axis, u, v and w |
| Accuracy | Wind speed better than 1% |
| Resolution | 0.01 m/s |
| Inputs | PRT and analogue input options |
| Head and build | Symmetrical head, aluminium and carbon fibre |
| Options | PRT and analogue input options |
Outputs and power
| Output rate | 50 Hz |
|---|---|
| Outputs | 14-bit digital (RS422 or RS232) or analogue |
| Interface | RS422 native, RS232 and analogue via the PCI or PCIA interface |
| Supply voltage | 9 to 30 V DC |
| Power consumption | Under 150 mA at 24 V DC (300 mA at 12 V DC), under 4 W running |
Environment
| Operating temperature | -40 °C to +60 °C |
|---|---|
| Ingress protection | IP65 |
Approvals and documentation
| Certifications | Individual calibration as standard |
|---|---|
| Datasheet | 1210-0012 Iss 3 |
COMPARE
R3-50 against R3-100: only what differs
| R3-50 | R3-100 | |
|---|---|---|
| Output rate | 50 Hz | 100 Hz |
| Datasheet | 1210-0012 Iss 3 | R3_100 Iss 4 |
Show the 4 rows that are the same
| R3-50 | R3-100 | |
|---|---|---|
| Axes | 3-axis, u, v and w | 3-axis, u, v and w |
| Operating temperature | -40 °C to +60 °C | -40 °C to +60 °C |
| Head and build | Symmetrical head, aluminium and carbon fibre | Symmetrical head, aluminium and carbon fibre |
| Inputs | PRT and analogue input options | PRT and analogue input options |
The nearest sibling in the range. Confirm which specification the application actually needs before ordering either. Compare the whole range
BEFORE YOU SPECIFY
Is the R3-50 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 R3-50 provides that configuration.
QUESTIONS
Specification questions about the R3-50
How many axes does the R3-50 measure?
The R3-50 measures 3-axis, u, v and w.
What is the difference between the R3-50 and the R3-100?
Output rate. The R3-50 outputs at 50 Hz and the R3-100 at 100 Hz. Otherwise they share the same research-grade 3-axis measurement.
How accurate is the R3-50?
The R3-50 is specified at wind speed better than 1%.
What resolution does the R3-50 report?
The R3-50 reports to 0.01 m/s.
What output rate does the R3-50 provide?
The R3-50 outputs at 50 Hz.
What outputs does the R3-50 provide?
The R3-50 provides 14-bit digital (RS422 or RS232) or analogue.
What inputs does the R3-50 accept?
The R3-50 accepts PRT and analogue input options.
What power supply does the R3-50 need?
The R3-50 requires 9 to 30 V DC.
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 R3-50
- Our team replies. Not an account manager, and not a queue.
- We aim to respond in one working day. Monday to Friday.
- No obligation. Just honest advice on whether Gill is the right fit.