Datum Clamp; End Covers; Reference Mark Deselection - Renishaw ATOM Installation Manual

Datum clamp

(A-9585-0028)
The datum clamp fixes the RTLF scale rigidly to the substrate at the location chosen.
The metrology of the system may be compromised if the datum clamp is not used.
It can be positioned anywhere along the axis depending upon the customers' requirements.
1 Remove the backing paper from the datum clamp.
Place the datum clamp with cut-out against the
scale at the chosen location.
2 Place a small amount of adhesive (Loctite
in the cut-out on the datum clamp, ensuring none
of the adhesive wicks onto the scale surface.
Dispensing tips P-TL50-0209 are available.

End covers

The end cover kit (A-9585-0035) is designed to be used with
RTLF scale to provide protection for exposed scale ends.
NOTE: End covers are optional and can be fitted
before or after readhead installation.
1 Remove the backing paper from
the adhesive tape on the back
of the end cover.
2 Align markers on the edges of the end cover with the end
of the scale and place end cover over the scale.
*
NOTE: There will be a gap between
the end of the scale and the
adhesive tape on the
end cover.
ATOM
linear installation guide
® 435 ™ )
Ensure the adhesive wicks along
the entire length of cut-out.
8
22
Dimensions in mm
*
gap

Reference mark deselection

RTLF scale >100 mm in length has reference marks every 50 mm. Stickers can be used to deselect all
unused reference marks (A-9402-0049 for a sheet of 20). The stickers are aligned on the backing paper
with a 50 mm spacing so two can be selected at once for deselecting two reference marks.
1
Ensure the scale is free from dirt and grease
by cleaning with a scale wipe (A-9523-4040)
or suitable solvent.
2
Place the transparent applicator film over the
reference mark deselector stickers and rub firmly
until the sticker adheres to the applicator film.
Two stickers can be selected at once.
3
Remove the applicator film, complete with
the stickers, from the backing paper.
Self adhesive reference mark deselector
stickers on backing paper
4 Align the stickers on the scale over the
reference marks that are not required,
as shown in the diagram, then rub firmly
on the applicator film until the stickers
adhere to the scale.
Care should be taken to ensure the stickers
fully cover the reference mark and do not
obscure any of the incremental track.
Applicator film
Incremental track
Deselected
reference marks
5
Remove applicator film.
8