10.2.6 Reference Marks

10.2.6 Reference Marks

Incremental measuring systems cannot determine the exact position when switched on. For this reason the reference track is added alongside the incremental track. One or multiple reference points can be marked on the reference track.

Standard version

The following reference position is defined as standard for all sizes:

• Referencing in the centre of the first and second fixing hole.

Special versions

Any number of reference marks can be chosen at any position along the reference track. It is necessary for the reference marks to be synchronised with the dimensional scale. Specifically this means:

• The reference marks can only be placed in multiples of 0.1 mm, since the pitch of the dimensional scale is 0.1 mm.
• A minimum distance of 1.5 mm between the reference marks should be maintained.
• Additionally, the distance between the end of the incremental track and the reference mark must be at least 2 mm.