ECE-BA-e-0711 138 Maintenance, upkeep, disposal8.1 CleaningPlease disconnect the device from the operating voltage before cleaning.Only use a cloth dampened with mild suds and not aggressive cleaning agents (sol-vents or similar). Please ensure that fluids are not able to get into the device and ruboff using a clean, soft cloth.Loose sample residue/powder can be removed carefully using a brush or hand vac-uum cleaner.Remove any spilt material to be weighed immediately.8.2 Maintenance, upkeepThe device may only be opened by trained service engineers authorised by KERN.Disconnect from the mains supply before opening.8.3 DisposalThe operating company shall dispose of the packaging and the device in compliancewith the valid national or regional law of the operating location.