analysette 22 „ECONOMY“ Page 15
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4.4 Cleaning
4.4.1 Cleaning of the device
The device can be cleaned with a moist cloth.
Ensure that no liquids penetrate the machine.
4.4.2 Cleaning of the measuring cell
Generally, it is sufficient to regularly rinse the measuring
cell with a clear liquid. To remove deposits, add little deter-
gent to the rinsing liquid. Normally, a few drops of a com-
mercial detergent with surfactants is sufficient (washing-up
liquid e.g. Fairy Liquid
or liquid soap).
If necessary, use 2 g of fine abrasive agent. (household
cleaner ATA
, VIM
, etc.).
Oily residue can be removed with a slightly alkaline deter-
gent.
It might at some stage become necessary to clean the in-
side of the measuring cell. This is for example the case, if
many small light dots are visible at the inside of the window
when the measuring cell is positioned to the left (laser
emitter on) and if these dots cannot be removed with re-
peated rinsing, or if the window has gone blind.
To dismantle the measuring cell,open the cover while
switching off the laser emitter.
Prior to opening the cell, drain the entire measuring cycle.
To do this, press the "Drain" key at the dispersing unit and
collect the liquid in the ultrasonic bath.
