eutech-instruments waterproof c401 colorimeter ユーザーズマニュアル

ページ / 44
Routine Maintenance 
 
 
C401/301/201/102/101 
 
 
 
36
5 ROUTINE 
MAINTENANCE 
The supplied carrying case is optimal for protecting the instrument. If you 
do not plan on leaving the instrument in the supplied carrying case, when 
not in use, ensure that the instrument has been turned off and that a clean 
sample vial fitted with a black cap has been placed in the sample well.  
This will ensure that a minimal amount of dust and/or debris will be able to 
settle on the optics of the instrument. 
5.1 
Vials – Handling, Cleaning and Care 
Proper colorimetric measurement of a sample requires the use of a vial 
that is free of marks, smudges, scratches and any bacterial growth.   
Therefore, sample vials must be handled with absolute care to avoid 
contamination or damage, which might change the optical characteristics 
of the glass. Scratches, fingerprints, and water droplets on the sample vial 
or inside the sample well can cause stray light interference leading to 
inaccurate readings. 
Cleaning the vial is accomplished by washing the interior and exterior of 
the vial in a detergent solution. Once cleaned, the vial should be rinsed 
thoroughly 8 to 10 times with clean distilled water to eliminate the 
possibility of detergent buildup and streaking. 
Sample vials should always be handled from the top or by the cap to avoid 
fingerprints or smudges. After a vial has been filled with a sample and 
capped, the outside surface should be wiped with a clean, lint-free 
absorbent cloth until it is dry. Cleaned and dried vials should be stored 
with the black caps on. The vial can be stored in the carrying case. During 
normal operation you may use any typical glass cleaner along with a lint 
free cloth or tissue (Kimwipes®), to clean the outside of the vials.