KERN & SOHN GAB 30K-3PM - Manual (Page 38)

11 Maintenance, servicing, removal, error messages
11.1 Clean
Before cleaning, disconnect the appliance from the operating voltage.
Please do not use aggressive cleaning agents (solvents or similar agents), but a
cloth dampened with mild soap suds. Take care that the device is not penetrated by
fluids and polish it 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.
11.2 Servicing, maintenance
The appliance may only be opened by trained service technicians who are
authorized by KERN.
Before opening, disconnect from power supply.
11.3 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.
11.4 Error messages
ERR 4
Zero range exceeded
ERR 5 Invalid entry
ERR 6 Damaged electronics
ERR 8 Adjustment error: wrong adjustment weight
ERR 9 Instability when the balance is switched on
38 GAB-P-BA-e-1411