Sequoia LISST-Hydro, Руководство пользователя

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function normally but use additional clean
water.
Low level in Clean Water Tank. Fill tank.
Readings will resume automatically after
tank is filled. The water level in the clean water tank is
low. Refill the tank as soon as possible with
clean and particle-free water.
High turbidity (Optical transmission below
30%). Accuracy may be reduced, see
Manual. The measurements will be progressively
affected, the lower the optical transmission.
Immediately around 30% transmission the
measurements are not affected to any
significant degree.
If the transmission drops below 20% the
measurements will become questionable,
and you should confirm the quality of the
measurements by obtaining a water sample.
Below 10% the measurements should not
be used.