Essilor Instruments DELTA, User Manual, Page: 94 / 187

c. Lens set-up and feeling
Prerequisite: the lens must be centered and blocked before placing it in the edger.
Check that the posiblock holder and the stop correspond to the posiblock used. Otherwise, you will need
to remove them from the lens clamp shafts and replace them with the tools matching the diameter of the
posiblock.
For a 22 mm posiblock For 18 x 14 mm posiblock
Place the lens in the posiblock holder.
Place the metal peg of the posiblock upwards and the positioner downwards: a magnet is used to
hold the lens in position on the axis.
You can clamp the lens manually by pressing . Manual lens clamping is particularly suited to
hydrophobic lenses, thick lenses and high-camber lenses, as it ensures that the lens won't come
off the pad before clamping.
Close the door.
Press .
Lens clamping starts.
A verification of the size of the accessories is performed then the feeling cycle starts.
To interrupt the feeling cycle at any time, press .
The feeling of the lens is carried out first on the rear surface (concave face of the lens) and then on
the front surface (convex face of the lens).
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> VII. E
DGING A LENS
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Delta - Edging System > V1- 02-2020