ELite 5, User Manual
Page 122 of 159
Measuring chambers: contamination induced problems such as noise, high blank
values can usually be resolved by cleaning the plastic measuring chambers.
General precautions: Always wear protective gloves when working on internal parts of the
analyzer.
15.2 Maintenance Programs of the Analyzer
Maintenance functions can be accessed from the menu system by clicking or tapping the
Maintenance main menu. This opens the maintenance function panel.
Figure 93. Maintenance menu
Clicking or tapping any of the function buttons initiates the corresponding maintenance
function. The maintenance functions are grouped into the following categories.
Cleaning
Bleaching: cleans the diluent buffer and the connecting tubes with external cleaner reagent
introduced through the sample rotor. This type of cleaning does not affect the optical head´s
flow cell and its tubing.
Flow cell backwash: cleans the optical head and the flow cell by draining the sheath buffer
through the optical head with a frequently used back flush through the flow cell, then refills
and rinses the system.
Shear valve cleaning: drains the shear valve so the user can open it to clean the ceramic
valve, then refills and rinses the system.
Rinse: washes the tubing system with diluent.
Cleaning: cleans the system with external cleaning reagent introduced through the sample
rotor.
Hard cleaning: extended cleaning of the system with external cleaner through the sample
rotor. The cleaning of measurement chambers and connected tubing is performed. The
Содержание ELite 5
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