CHAPTER 4 MAINTENANCE
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Figure 4-7 Cuvette and cuvette bracket（Single cell holder）
Exclusive lube has been added on each movable part of instrument in factory.
If movable part is found abnormal after the instrument has been used for a long
time, please contact to our Service Department.
4.1.5 Clean of Window Frame and Lens of Sample Compartment
If window plate and lens of sample compartment has been contaminated,
clean them according to the following procedures after wash your hands.
（1）First confirm instrument has been turned off. And power cord of instrument
has been pulled out.
（2）Open cover of sample compartment and take out cuvette bracket.
（3）Clean window plate and lens using mixed solution of alcohol and aether
1:1 and soft cloth. Dry them.
（4）Install cuvette bracket back to the previous position.
(1) When cleaning lens, only need to clean the face towards sample
compartment, for the other face is sealed and need not to be cleaned.
(2) Try not to remove lens or lens assembly to avoid optical path deviation.
(3) When cleaning window plate, only need to clean the face towards sample
compartment, for the other face is sealed and need not to be cleaned.
(4) Window plate must be removed for clean, shown as Figure 4-8.
(5) During clean and removal process, do not leave fingerprint on widow plate
or lens.
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