Standard Deviation (Kern Pej Only); Verification - KERN AES Operation Manual

9.6 Standard deviation (KERN PEJ only)

Keep CAL-key pressed until [
The weighing balance in conjunction with the adjusting weight defines 10 meas-
ured values
The defined standard deviation (e.g. 0.000073 g) will be displayed.
Press any key; balance will return to weighing mode.
To interrupt measuring, press the PRINT-key.

9.7 Verification

General introduction:
According to EU directive 90/384/EEC balances must be officially verified if they are
used as follows (legally controlled area):
a) For commercial transactions if the price of goods is determined by weighing.
b) For the production of medicines in pharmacies as well as for analyses in the
medical and pharmaceutical laboratory.
c) For official purposes.
d) For manufacturing final packages.
In cases of doubt, please contact your local trade in standard.
Verification instructions
An EU type approval exists for balances described in their technical data as verifi-
able. If a balance is used where obligation to verify exists as described above, it
must officially verified and re-verified in regular intervals.
Re-verification of a balance is carried out according to the respective national regu-
lations. The validity for verification of balances in Germany is e.g. 2 years.
The legal regulation of the country where the balance is used must be observed!
Verification of the balance is invalid without the "seal".
Balances with obligation to verify must be taken out of operation if:
The weighing result of the balance is outside the error limit. Therefore,
•
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.
•
26
ARN
] appears.
in succession.
AES/AEJ-BA-e-0912