KERN & SOHN ECE 50K20 - Manual (Page 7)

ECE-BA-e-1120 7
5.2.2 Package volume
Serial fittings:
KERN ECB
• Balance
• Operating
manual
• Power
adaptor
5.3 Mains supply/ Battery operation
5.3.1 Mains supply
Electric power supply is by means of the external mains supply circuit. The printed
voltage level must comply with the local voltage.
Only use original KERN mains supply circuits. The use of other makes is subject to
approval by Kern.
Mains adapter output voltage: 9V DC (polarity: inner terminal is negative)
5.3.2 Battery operation
Open the battery cover on the underside of the balance. Insert 6 x 1.5volt (AA) bat-
teries.
Replace the battery cover. To preserve battery life, the balance switches off
automatically after 3 minutes if no weighing has taken place.
For battery operation the balance has an automatic switchoff function which can be
activated and deactivated in the menu.
When the battery power is used up the display will show “LO“. Press the ON/OFF
key and change the batteries at once.
When the balance is not in use for a longer period of time remove batteries and keep
them separately. Leakage of battery liquid might damage the balance.
The optionally supplied battery is charged with the supplied power supply.
The battery has a service life of c. 100 hours.
The charging period for total charge is c. 10 hours.