KERN PLJ 300-3CM, Operating Instruction, Page: 342 / 513

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30 Servicing, maintenance, disposal
Before any maintenance, cleaning and repair work disconnect the
appliance from the operating voltage.
30.1 Cleaning
Please do not use aggressive cleaning agents (solvents or similar agents), but a
cloth dampened with mild soap suds. Ensure that no liquid penetrates into the
device. Polish with a dry soft cloth.
Loose residue sample/powder can be removed carefully with a brush or manual
vacuum cleaner.
Spilled weighing goods must be removed immediately.
30.2 Servicing, maintenance

The appliance may only be opened by trained service technicians who are
authorized by KERN.
 Before opening, disconnect from power supply.
30.3 Disposal
Disposal of packaging and appliance must be carried out by operator according to
valid national or regional law of the location where the appliance is used.