Lowell MAT-1 Data Logger, Руководство пользователя

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Universal User Guide, Rev L, February 2022 23
types of paint that do not contain metals and have a minimal effect on the performance of the
meter. We recommend that you contact Lowell Instruments to discuss before painting.
3.5 Data Retrieval and Conversion
When the deployment is complete, clean and dry the meter and remove the end cap. Connect the USB
cable and use the
“ Device ” screen in Domino to stop recording data. Once logging has stopped your
computer should automatically discover the MAT_LOGGER drive. Copy the binary data file (.lid) to a
local drive for processing.
The binary data may be converted to current (speed and direction) using the “Convert” screen in
Domino.
Use the drop-down menus to specify the model number, number of ballast washers (if applicable) and
water type (fresh/salt). If the meter was deployed in a tidal estuary where the water type changes (with
the tides) the file can be processed twice and the results compared. Contact Lowell Instruments if you
have questions about selecting a calibration file.
Most users will want make sure that the check box “Average Bursts ” is selected. It should be selected by
default. This can be found by clicking on the “options” button next to “output type.” When this check
box is selected Domino will determine the average tilt and bearing from each “Burst Interval.” (If the
meter was set to “Continuous” recording at 2-64 Hz, the averaging interval will be one second.)
Optionally, set the compass declination for your location to convert from magnetic North to true North.
If you don’t know the declination for your deployment location you can look it up here:
https://www.ngdc.noaa.gov/geomag-web/ . Note the declination is entered with east as positive, west
as negative values.
The resulting file will end in “ _AccelMag ”. If the temperature channel was enabled there will also be a
file ending in “_Temperature”. Both files are saved in .csv format.
Tip: Always save the binary file (.lid) for your records. The binary file contains information that is not
displayed in the output files and is an excellent backup file and can be used for debugging purposes.