KERN AEJ-C Series Operating Instruction page 232

Automatic adjustment is carried out:
• When balance was disconnected from the mains.
• When the temperature is changing
The moment a change in temperature of 3°C is detected by the temperature
sensor, the weighing scale will carry out a fully automatic adjustment. The
message „CAL" in combination with a thermometer icon indicates that an
adjustment is about to take place.
• at the end of a defined time interval
After a time interval set in the menu <P1.5 AU.TIME.JUST> has lapsed
(selectable 1 – 12 h) the weighing balance will announce that adjustment is
about to take place by sending message „CAL" in combination with a clock icon:
In weighing scales with type approval certificate
• Menu item <P1.5 AU.TIME.JUST> disabled
• Adjustment takes place every 3 hours
60
AEJ-C/AES-C/PLJ-C-BA-e-1621