ULTRASONIC Portable
WIND INSTRUMENT AND DATA LOGGER
3. Technical specifications
(continuation)
This product is a wind sensor instrument and has been
engineered for the sole use of accurately measuring wind
speed and direction using ultrasonic transducers.
Ultrasonic transducers (4x)
The Ultrasonic Portable has been designed to avoid any
mechanical parts to maximize reliability and minimize
maintenance.
The transducers communicate between themselves two
by two by using ultrasonic range waves. Each pair of trans-
ductors calculate the signal delay and obtain information
about both, wind direction and wind speed.
Ultrasonic waves range above 20 kHz(20000 Hz), which is
above the audible range of humans. Some animals such
as dolphins, bats, frogs, etc...can actually hear waves
beyond 20 kHz. However, our low units use only 0,3
miliamps to run all electronics and excite the transducers
on "speaker" mode. This results in an ultra-low volume
sound, almost impossible to detect by any living being.
3.5. Sensors
· Ultrasonic transducers (4x)
· Sample rate: 1 Hz
Wind speed
Range: 0 - 25 m/s
Resolution: ±0.1 m/s at 10m/s
Wind direction
Range: 0 - 360°
Resolution: ± 1°
*For more information about how to get each value, please
visit our website and download latest full manual of the
Anemotracker App.
The Ultrasonic Portable has been certified by an approved
independent laboratoty as IPX8. In order to get the IPX8
code certificacion, ULTRASONIC PORTABLE has success-
fully passed a 30 minutes water immersion test at a depth
of 10 meters (1bar) with no water ingress. We have also
run more severe tests in house with successfull results
(even though they are not certified).
However, reaching IPx8 30 min-10 m does not yield
warranty of being waterproof at 10 m. The same rationale
applies to swimming watches; a watch needs to be tested
at 30-50 meters depth to be considered water-resistant at
a swimming depth of around 1 meter. For going deeper
than (snorkeling, diving) watches are individually tested up
to 200-500 m!
Several factors might affect Ultrasonic watertightness:
rubber seals and plastics wear and tear, drastic temperatu-
re changes (hot air then cold water), previous impacts,
pressure increase rate (immersion velocity), water density
and temperature, under-water speed and acceleration, ...
This is why we do certify that our Ultrasonic is IPX8 30
min-10 m but we cannot guarantee that it is waterproof at
10 m.
3.6. Wind
information
· Wind speed
· Wind direction
3.7. Protection grade
· IPX8 (10 meters)
07/13
ULTRASONIC Portable
User manual
