LISST-200X User’s Manual LISST-200X Operation Details Page 96
Again it must be emphasized that the LISST-200X is a sensitive
instrument. When not in use, the instrument should be stored in its
shipping case.
Cleaning the
Optical Windows
As has been noted earlier, the condition of the windows is critical to
the performance of the LISST-200X. Care must be taken when
cleaning the windows. The windows and the instrument should be
rinsed thoroughly with fresh water after each deployment. The
windows should be cleaned with a soft cloth or lens tissue. Liquid
detergent/soap and water may be used. For removing grease spots,
finger prints, etc, alcohol may be used. Do not use stronger solvents
such as Acetone or Toluene.
Abrasive powders must never be used near the optics windows; they
will scratch the windows and degrade instrument performance.
O-rings that seal the mating parts of the instrument must be
maintained and inspected regularly. Whenever the connector end cap
is removed, check the O-ring for any cuts or marks, and clean and
lightly grease the O-ring before installing the end cap. Spare end cap
O-rings have been provided. O-rings are inexpensive items that
provide an invaluable service; replace them if in any doubt about their
condition. When replacing the O-ring, be sure to clean the O-ring
groove thoroughly with cotton-swabs etc. making sure that no fibers
or particles of dirt are left after the cleaning.
Calibrations and
Adjustments
The LISST-200X should not require any adjustment or calibrations.
The pressure and temperature sensors can be re-calibrated if
desired. The performance of the instrument can be checked with the
use of a sample of particles of a known size distribution. Standard
particles can be obtained from manufacturers of standard particles,
such as Whitehouse Scientific (http://www.whitehousescientific.com/)
or PTI – Powder Technology Inc.
(http://www.powdertechnologyinc.com/).
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