6 Operation
K-375 / K-376 / K-377
Operation Manual, Version E
125
Fig. 7.2: Cleaning tubes in the rack
NOTE
To clean the tubes and rack together in the dishwasher additional accessories are required.
∙ Place the sample tubes and rack
2
on the rack stand
3
.
∙ Install the retaining plate
1
and lock it with the 2 latches
4
to secure the sample tubes.
∙ Turn the rack upside down and place it in the dishwasher.
7.2 Weekly maintenance
7 2 1
Cleaning the housing
The housing is made of polyurethane.
You can clean it with water inside and outside. The use of organic solvents (except ethanol) can lead
to damage and is not recommended. Acid splashes are tolerated by the housing for short periods,
but must be immediately removed with water in order to avoid stains.
7 2 2
Cleaning the titrator
∙ Clean the housing of the titration unit with a moist piece of cloth with normal household cleaning
agents.
∙ Treat the bottom and rear side dry. In no case must liquid penetrate into the interior of the titra-
tion unit.
7 2 3
Cleaning the glass parts of the dosing unit
Please refer to the manual for the dosing unit for cleaning instructions. After cleaning and complete
drying, visually examine every part for chipped areas and cracks.
7 2 4
Cleaning the dip tube of the KjelSampler
Remove the dip tube carefully and clean it using normal household cleaning agents. Afterwards rinse
it with distilled water. The sampler head and seal can be cleaned with a moist piece of cloth.
NOTE
To remove the dip tube, first remove the rack from the sampler tray and move the arm to the service
position:
System Preparation
Sampler functions
Move to service position
. Use “Move to zero
position” after reattaching the dip tube.
