KERN AEJ-C Series Operating Instruction page 295

Weight first sample

If required, set weighing balance to zero or tare. Place first sample on pan,
wait for stability sign, then press the PRINT-key.
The informational line of text will show the number of the sample < 1 >; the
weight will be saved. The result on the display will be tared automatically.
Weigh additional samples

Follow the same procedure as for the first sample
When the sample number is displayed you can use the function key assigned
to the <DELETE LAST> to undo the last weighing process.
AEJ-C/AES-C/PLJ-C-BA-e-1621 123