BUCHI KjelSampler K-377 - Manual (Page 123)

7 Maintenance
123 K-375/376/377 Operation Manual, Version B
• If you choose “Add defaults” when creating a
new sequence the dosing step is automati-
cally added to the sequence.
• However, if you do not create a new
sequence based on the default steps, the
dosing step can be added to the sequence
at any time using the
NEW button.
• To dose boric acid manually, use the dosing
button provided in the status view (refer to
“6.5 The status view”).
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 titration
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 sampler
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.