wtw EcoLine LF 170 Bedienungsanleitung Seite 123

Calibration
Note: Measured values that are recorded after an invalid LF-Check and
resetting of the cell constant (as described above), are affected by a
greater measuring error and no longer correspond to the specifications
given in the chapter "Technical Data"!
It is strongly recommended to check the measuring system to achieve a
valid LF-Check!
If the error cannot be remedied, contact the Technical Service
department of WTW.
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