KERN FES 33K0.1 IPM Operating Instruction page 30

After verification the balance is sealed at the indicated positions.
Verification of the balance is invalid without the "seal".
Position of the "official seals":
Balances with obligation to verify must be taken out of operation if:
The weighing result of the balance is outside the error limit. Therefore,
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in regular intervals load balance with known test weight (ca. 1/3 of the max.
load) and compare with displayed value.
The reverification deadline has been exceeded.
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30
Seal
Seal
Seals
FES/FEJ-BA-e-1132