RASS Extension RAE2

The Scintec RAE2 RASS Extension upgrades any Sodar models (SFAS, MFAS or XFAS) to allow precise measurements of temperature profiles in the atmospheric boundary layer. The temperature data is retrieved by remotely measuring the speed of sound which is a function of the temperature. This is done by Doppler analysis of the frequency of radio waves which have been reflected at acoustic waves emitted by the Sodar.

RASS can replace towers, tethered balloons or radiosondes at a fraction of the operational costs. Compared to passive, thermal microwave or infrared techniques, RASS can precisely detect and locate even multiple inversions and has higher accuracy.

The Extended-Sweep Inversion technique (ESI) used in the Scintec RASS Extensions significantly increases the signal-to-noise ratio and allows for larger vertical measurement ranges than those of traditional RASS systems. The RASS Extensions for FAS Series operate using the a versatile software with a flexible configurability, extensive graphical display and output options, robust quality control features, various statistical analysis tools and reliable remote access support.

Features
vertical temperature profiles with high spatial resolution
temperature measurements in combination with Sodar SFAS, MFAS or XFAS
unaffected by precipitation and turbulence-free atmospheres
immune to ground clutter and noise
maximum range up to 600 / 800 / 1000 m (with SFAS/ MFAS / XFAS)
vertical resolution down to 5 / 10 / 20 m (with SFAS / MFAS / XFAS)
Extended-Sweep Inversion technology for improved S/N ratio
easy installation and integration
fully-automated self-test
lifetime calibration-free

Specifications
Data output
Description
Temperature and virtual temperature
Inversion identifier
Data quality
Basic Specifications
Description
Specification
Radio antenna
8-bar slot antenna
easy disassembly for transport
Radio frequency
1290 MHz, 915 MHz
other frequencies on request
Vertical resolution
5 / 10 / 20 m with SFAS / MFAS / XFAS
depending on Sodar model
Minimum range
40 m
depending on settings, environment and atmosphere
Maximum range
600 / 800 / 1000 m with SFAS / MFAS / XFAS
depending on settings, environment and atmosphere
Averaging time
1 to 60 min
user defined
Accuracy
0.2 °C
virtual temperature
Measurement range
-50 °C to +60 °C
Operating temperature
-35 to +55 °C (-30 to +130 °F)
Power requirement DC operation
+14 VDC, 7A, 98 W
depending on mode
Power requirement AC line operation
104 to 132 VAC, 160 W; or 207 to 264 VAC, 160 W
120V model or 230V model
Accessories
Power Supply RASS RAE2/windRASS

This unit is for operation of a RASS RAE2 or windRASS Extension with AC power.

Isolating DC Power Adapter Type R, 10-28 VDC; for RAE2 and windRASS

This power adapter allows for DC operation of RASS RAE2 or windRASS.

RASS Interface Upgrade for SFAS

This upgrade permits to later install a RASS Interface into an existing SFAS Signal Processing Unit that was originally produced without RASS Interface.

RASS Interface Upgrade for MFAS

This upgrade permits to later install a RASS Interface into an existing MFAS Signal Processing Unit that was originally produced without RASS Interface.

RASS Interface Upgrade for XFAS

This upgrade permits to later install a RASS Interface into an existing XFAS Signal Processing Unit that was originally produced without RASS Interface.

Related Products
Flat Array Sodar SFAS

SFAS is a high-performance acoustic Wind Profiler with a compact and lightweight design, which provides the highest spatial resolution among the FAS series.

Flat Array Sodar MFAS

MFAS is a versatile acoustic Wind Profiler which combines the advantages of an excellent portability and a large vertical measurement range.

Flat Array Sodar XFAS

XFAS is a long-range acoustic Wind Profiler optimized for the measurement of wind and turbulence up to boundary layer height.

windRASS Extension
for SFAS and MFAS

The Scintec windRASS Extension upgrades the Sodar models SFAS or MFAS to work in radio-acoustic mode for precise measurements of both wind and temperature.