Maintenance ∆ Cleaning; Repairs; Meter Disposal - LaMotte 2020t Manual

Tubes should be emptied and cleaned as soon as possible after reading a sample to
prevent deposition of particulates on the inside of the tubes. When highly accurate results
are required, reduce error by designating tubes to be used only for very low turbidity and
very high turbidity testing.
Variability in the geometry of the glassware and technique are the predominate cause
of variability in results. Slight variations in wall thickness and the diameter of the tubes
may lead to slight variations in the test results. To eliminate this error the tubes should be
placed in the chamber with the same orientation each time.
Chambers which have been scratched through excessive use should be discarded and
replaced with a new one.
MAINTENANCE
 CLEANING
Clean the exterior housing with a damp, lint-free cloth. Do not allow water to enter the light
chamber or any other parts of the meter. To clean the light chamber and optics area, point
a can of compressed air into the light chamber and blow the pressurized air into the light
chamber. Use a cotton swab dampened with Windex
interior of the chamber. Do not use alcohol; it will leave a thin residue over the optics when
dry.
 REPAIRS
Should it be necessary to return the meter for repair or servicing, pack the meter carefully
in a suitable container with adequate packing material. A return authorization number
must be obtained from LaMotte Company by calling 800-344-3100 (US only) or 410-
778-3100, faxing 410-778-6394, or emailing tech@lamotte.com. Often a problem can
be resolved over the phone or by email. If a return of the meter is necessary, attach a
letter with the return authorization number, meter serial number, a brief description of
problem and contact information including phone and FAX numbers to the shipping carton.
This information will enable the service department to make the required repairs more
effi ciently.
 METER DISPOSAL
Waste Electrical and Electronic Equipment (WEEE)
Natural resources were used in the production of this equipment. This equipment may
contain materials that are hazardous to health and the environment. To avoid harm to
the environment and natural resources, the use of appropriate take-back systems is
recommended. The crossed out wheeled bin symbol on the meter encourages the use of
these systems when disposing of this equipment.
Take-back systems will allow the materials to be reused or recycled in a
way that will not harm the environment. For more information on approved
collection, reuse, and recycling systems contact local or regional waste
administration or recycling services.
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window cleaner to gently swab the
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