KERN & SOHN DS - Manual (Page 27)

6.8.2 Adjustment of the balance KBJ with internal adjustment weight
After expiring of the warm-up time (wait > 299s), the balance KBJ is automatically
adjusted, whenever switched-on again. Additionally, at any time another adjustment can
be released manually via the keyboard.
In order to carry out an exact adjustment, the environmental influences (draught/ vibration)
must be kept to an absolute minimum. The weighing pan must be placed without load. An
adjustment weight is not necessary here.
Sequence of the manual adjustment:

Press the Mode key:

Display: Cal? acknowledge by Yes button

Display: int. Cal Weight / Adjustment motor starts up

Display: Auto-Calibration
 Display: Calibration done
 Display: 0.00 g
6.9 Verification
General introduction:
According to EU directive 90/384/EEC balances must be verified if they are used as fol-
lows (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 medi-
cal 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 verifiable. If a
balance is used where obligation to verify exists as described above, it must verified and
re-verified in regular intervals.
Re-verification of a balance is carried out according to the respective national regulations.
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 reg-
ular 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.
572/573/KB/DS/FKB/KBJ-BA-e-1472 27