Mains Connection; Storage Battery Operation (Optional); Connection Of Peripheral Devices; Initial Commissioning - KERN EWJ 300-3 Operating Instructions Manual

6.3 Mains connection

Power is supplied via the external mains adapter. The stated voltage value must be
the same as the local voltage.
Only use KERN original mains adapter. Using other makes requires consent by
KERN.

6.4 Storage battery operation (optional)

Before the first use, the battery should be charged by connecting it to the mains
power supply for at least 12 hours.
The LED display provides information about the battery's charging status.
Voltage has dropped below prescribed minimum.
Rechargeable battery very low.
Rechargeable battery completely reloaded
To spare the rechargeable battery the permanent background illumination of the
display can be switched off in the menu item „F2 bl", see chapter 8.2.

6.5 Connection of peripheral devices

Before connecting or disconnecting of additional devices (printer, PC) to the data
interface, always disconnect the balance from the power supply.
With your balance, only use accessories and peripheral devices by KERN, as they
are ideally tuned to your balance.

6.6 Initial Commissioning

In order to obtain exact results with the electronic balances, your balance must have
reached the operating temperature (see warming up time chap. 1). During this
warming up time the balance must be connected to the power supply (mains,
accumulator or battery).
The accuracy of the balance depends on the local acceleration of gravity.
Strictly observe hints in chapter Adjustment.
18 EWJ-BA-e-1615