6.4 Battery operation CKE To insert the batteries (6 x 1.5 V) remove the battery compartment cover. Remove it with the help of a coin. In the each battery tube insert three batteries in the same polarity sense. Screw down again the battery cover.To save the battery, the background illumination can be switched off (see chap. 1 Mode Menu).Moreover the AUTO-OFF function can be activated (see chap. 1 Mode Menu).If the battery voltage drops below a critical value for operational safety, this will be indicated in the display withthe “BATT LOW“ information.6.5 Connection of peripheral devicesBefore connecting or disconnecting of additional devices (printer, PC) to the data interface, always disconnectthe balance from the power supply.With your balance, only use accessories and peripheral devices by KERN, as they are ideally tuned to yourbalance.6.6 Initial CommissioningA warming up time of 2 hours after switching on stabilizes the measuring values.The accuracy of the balance depends on the local acceleration of gravity.Strictly observe hints in chapter “Adjustment”.CKE/CDS-BA-e-152612