Seca 764 Instruction Manual page 22

Checking that the contents of the calibration counter are
correct
These seca scales are calibrated. Calibration may be performed only by authorised
centres. To ensure this, the scales are fitted with a calibration counter which records
any change to data relevant to calibration. If you want to check whether the scales are
properly calibrated, proceed as follows:
– If necessary, switch off the scales.
– Keep a key of your choice depressed
and start the scales.
The current contents of the calibration
counter are shown on the display for a
few seconds.
– Compare the output contents of the
calibration counter with the number
shown on the calibration counter stick-
er.
For valid calibration, both numbers
must match. If sticker and calibration
counter do not match, then re-calibra-
tion is required. Contact your service
agent or seca Customer Service.
If a supplementary calibration is neces-
sary, then the supplementary calibration
counter sticker illustrated opposite is
used to record the calibration counter po-
sition instead of the seca calibration
sticker shown above. This sticker is se-
cured with an additional seal by the per-
son authorised
supplementary calibration. The supple-
mentary calibration mark is available
from seca Customer Service under the
number 14-05-01-886.
Correct weighing
– Press the Start button.
,
display in sequence. After this the
scales are automatically set to zero
and ready for operation.
– Stand on the scales and remain mo-
tionless.
– Read the weighing result off the digital
display.
– If a weight of more than 250 kg is
placed on the scales, then
pears in the display.
22
to perform
and appear in the
the
ap-
Both numbers
must match.