X-LAS MkII Scintillometer
The X-LAS MkII is Kipp & Zonen's extra large aperture scintillometer, providing continuous measurements of sensible heat fluxes over path lengths from 1 km up to 12 km. It operates as a stand-alone device with integrated data logging and processing, GPS and a carbon fibre housing; since limited power is required, in most cases a simple solar-charged battery is sufficient.
- Path length
- 1 to 12 km
- Dimensions
- 1010 x 552 x 426 mm (with sunshield) 18,75 kg
- Wavelength
- 850 nm
Overview
In detail
On-board processing and logging
The X-LAS MkII receiver's internal digital processing unit automatically computes all relevant parameters, such as Cn² and the sensible heat flux. Real-time data is available on the display, and the built-in data logger stores several months of measurements and results. A digital interface allows remote real-time display and full control over the instrument's operational settings, while analogue outputs enable connection to virtually any data acquisition system for integration into new or existing measurement networks.
Field deployment
The instrument can be installed and configured using its built-in display and key-pad without any extra equipment, and features a light carbon fibre housing for easier transport. The carbon fibre also gives a very stiff and temperature-stable enclosure for the optics, supporting accurate long-term data.
Flux calculation and software
On its own the scintillometer measures changes in the refractive index of the atmosphere, Cn²; with the optional meteorological sensor kit (wind speed, temperature and pressure sensors, plugging directly into the receiver) it can calculate sensible heat flux. The EVATION® software suite is included as standard to view real-time data numerically and graphically and provides advanced data post-processing.
Reach out and say hi
Specifications
Technical specifications
- Path length
- 1 to 12 km
- Dimensions
- 1010 x 552 x 426 mm (with sunshield) 18,75 kg
- Wavelength
- 850 nm
- Scintillation bandwidth
- 10-17 to 10-11
- Power requirements
- 12 VDC, 6W (heater off) / 54W (maximum when heater on)
- Data processing
- Internal processing of Cn², free sensible heat flux and other parameters
- Control and display
- Built-in display and key-pad or remote via digital interface
- Interfaces
- Digital RS-232/422, analog 0 to 2.4 V
- Software
- EVATION® (instrument control and data analysis)
Related
Often specified alongside
- Range
- 0-100,000 µS/cm ±2%
- Output
- SDI-12 and 4-20mA standard; RS232 on 12-pin variant
- Supply
- 10-18 V DC, <80 mA
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