Measurement method:
- The drum can only be turned after unlocking the retaining clamp.
- Spread the measuring surfaces a distance slightly greater than the measuring object.
- Then adjust coarse by turning with the drum,then continue tightening by turning the knob of the friction clutch.
- Stop tightening when the clutch works,i.e. a further turn of the knob will not cause the rotation of the drum.
- Read the measurement result according to the measuring principle shown in the figure.
It is recommended to fix the measuring element or micrometer before starting the measurement. This will allow you to achieve the highest measurement accuracy.
It is also recommended to carry out several measurements in order to obtain the arithmetic mean of the results.