KERN & SOHN ALT 250-4B - Manual (Page 92)

92 ALT_B-PLT_A-PLT_F-BA-e-1333
15 Service, maintenance, disposal
Before any maintenance, cleaning and repair work disconnect the
appliance from the operating voltage.
15.1 Clean
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.
15.2 Service, maintenance
 The appliance may only be opened by trained service technicians who are
authorized by KERN.
 Ensure that the balance is regularly calibrated, see chap. Testing instruments
control.
15.3 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.