Seca 645 Mode D'emploi page 108

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If you want to check whether the scale has been pro-
perly calibrated, follow the instructions below.
1. If necessary, turn off the scale.
2. Press and hold any key and start the scale.
The current content of the calibration counter flas-
hes in the display for a few seconds.
3. Compare the content of the calibration counter out-
put with the number given on the calibration coun-
ter sticker.
2
Both numbers have to match for the calibration to be
valid. If the sticker and the calibration counter do not
checksum
match, the scale must be recalibrated. Please contact
your service partner or seca service. Once the scale has
been recalibrated, a new, updated calibration counter
sticker is used to identify the status of the calibration
counter. The person authorized to perform the recalib-
ration secures this sticker with an additional seal. The
calibration counter sticker can be ordered from seca
service.