Sequoia LISST-200X, Руководство пользователя

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LISST-200X Introduction & Quick Start 14 LISST-
200X User’s Manual
Dirty water or windows will generally cause higher values across the
middle rings. Large bubbles or particles in the water can cause higher
values on the inner rings or left hand side of the display. High values
on the inner rings combined with a lower transmitted laser power value
can also be an indication of optical misalignment.
If needed you can update the background, such as after cleaning the
windows or replacing the water, by pressing the
Collect New
Background button again.
In general, the lower the background values the better the
background. The goal is to get values that are at the same values as
factory line. However, as the instrument is used the background may
increase due to small scratches and slight alignment changes. It may
not be possible to get the background down to the original factory
values.
If the values are acceptable the values can be saved both onboard the
instrument and to a file on your computer. The LISST-200X handles
the background files differently than the LISST-100X. The background
file is stored on the instrument and is saved as part of every data file
that is recorded. When processing a data file the background will be
automatically extracted and used during processing. Saving, tracking
and selecting a background file to use for processing is no longer
required. The background stored on the instrument will continue to be
saved in new data files until a new background is recorded.
If you wish to store a background file on your computer as well as on
the instrument, click the ‘Save as .BGT file’ after you have accepted
and saved the background. It is not necessary to store the background
on your computer, however, these saved backgrounds can be used
during processing instead of the background saved in the data file.
Step 10:
Configuring
Instrument for
Deployment The Configure Instrument window is used to configure the deployment
parameters. To open the window, choose
Configure Instrument from
the home page.
A window similar to the one shown below will appear. The window has
four accordion style tabs: Sampling Schedule, Start Condition, Stop
Condition, and Accessories.