KERN 770-12 Operating Instructions Manual

KERN 770-12 Operating Instructions Manual Manual pdf 20 page image

770/GS/GJ-BA-defsi-0023 871.9 Care and Maintenance1.9.1 CleaningBefore cleaning the balance, unplug the AC adapter fromthe wall outlet.Please do not use any aggressive cleaning agents (solventsor similar agents). Instead, use a piece of cloth which hasbeen wet with a mild detergent (soap). Make sure that noliquid enters the balance housing. After cleaning, wipe downthe balance with a soft, dry piece of cloth.Carefully remove any sample residue/spilled powder byusing a brush or a hand-held vacuum cleaner.1.9.2 Safety InspectionIf there is any indication that safe operation of the balancewith the AC adapter is no longer guaranteed, turn off thepower and disconnect the equipment in a secure place toensure that it cannot be used for the time being.Safe operation of the balance with the AC adapter is nolonger ensured when- there is visible damage to the AC adapter;- the AC adapter no longer functions properly;- the AC adapter has been stored for a relatively longperiod under unfavourable conditions.In this case, notify your nearest supplier. Only servicetechnicians who have access to the required maintenancemanuals are allowed to perform maintenance andrepairwork on the equipment.The electrical and electronic components used in thebalance are rated to at least Class KSF according to DIN40040.