KERN and SOHN ABS 80-4 Mode D'emploi page 69

Calibration information (Kern ABJ only)
A security mark must be attached in compliance with the following drawing.
Important type plate information:
There is a counter on the type plate that counts upwards if the internal adjustment
weight is re-adjusted using service mode. This counter is indicated as follows:
"Log. No. A01". The display indicates the number A01 after the balance has been
connected to the power supply. If the internal adjustment weight has been adjusted
using the service mode, this counter would count upwards and A02 would appear after
the balance is connected to the power supply. This would invalidate any calibration in
calibrated condition.
The counter on the type plate and the number indicated on the display must coincide
after the balance is connected to the power supply!
If these numbers do not coincide, calibration is not valid.
ABS/ABJ-BA-e-0916
Type plate
Security mark
17