Seca 665 - Manual (Page 22)

22
Checking that the contents of the calibration counter are correct
This seca scale is calibrated. Calibration may be performed only by authorised centres.
To ensure this, the scale is fitted with a calibration counter which records any change to
data relevant to calibration. If you want to check whether the scale is properly calibrated,
proceed as follows:
– If necessary, switch off the scale.
– Keep any key depressed and start the
scale.
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-calibration is re-
quired. Contact your service agent or
seca Customer Service.
If a supplementary calibration is necessary,
then the supplementary calibration mark il-
lustrated opposite is used to record the
calibration counter position instead of the
seca calibration mark shown above. This
mark is secured with an additional seal by
the person authorised to perform the sup-
plementary calibration. The supplementary
calibration mark is available from seca
Customer Service under the number
14-05-01-886.
Correct weighing
– Press the Start key with no load on the
scale.
se(a , 8.8.8.8.8. and 0.0 appear consecu-
tively in the display. The scale is then auto-
matically set to zero and ready to use
– Switch weighing range if necessary
(see page 23).
– Move your chair onto the scale and
keep still.
Note
The maximum load on each individual
corner of the weighing platform is
200 kg.
– Read the weighing result off the digital
display.
Both numbers must match.