Gedore DREMASTER Z Instructions D'emploi page 19

EN
According to DIN EN ISO 6789 the minimum calibration
interval requirement for a torque wrench is one year or 5000
load cycles (whichever case occurs first). A firm's own
specifications or quality requirements for screwing
applications can also lead to considerably shorter calibration
intervals.
NOTICE
i i
NEVER neglect recalibrating the torque wrench. Improper
calibration can cause the torque wrench to be damaged.
Calibration should ONLY be implemented by authorized
specialists, an accredited calibration laboratory or the
manufacturer.
A calibration certificate as per DIN EN ISO 6789 comes with
every new torque wrench. The torque wrench and the
calibration certificate are labeled with the identical serial
number.
Serial Number
21