User`s manual

ProScale M150, M250 with LCD Digital Displays Page 17 of 48
Connector Link
Guide Clip
1. Note the orientation of the ReadHead on the Scale. Be sure the arrow
on the ReadHead points towards the “BLACK END OF SCALE”. This
orientation is critical for proper operation. Be sure the mounting location
for the ReadHead and Scale will allow this orientation. Take care when
sliding the ReadHead onto the Scale so the brass “fingers” inside the
ReadHead do not get damaged. (A slight “wiggling” motion when
installing the ReadHead will simplify the process.)
2. Determine an appropriate mounting location. Most applications of the
Model 150 will have the ReadHead held stationary while the Scale is
passed through the ReadHead. The ProScale will also operate properly
if the ReadHead is moved along the Scale (see figures on next page).
3. If the ReadHead is to be mounted stationary, the
Scale should be attached to a moving part of the
measuring application or machine using the
Connector Link. Attach the ReadHead using three
screws or bolts. Attach one end of the connector link
to the Scale using the included 10-32 screw (or M5)
and the other end to the moving part. Check that the
Scale is properly aligned with the direction of motion
of the moving part. Be sure both connections are
secure or inaccurate/erratic readings could result.
(The connector link compensates for small
misalignments of the installation and acts as a shear
pin). Failure to use the connector link could void the warranty.
4. If your application is more suited to the Scale being
held stationary and the ReadHead moving, you should
use the Guide Clip to move the ReadHead along the
Scale (see figure on next page). The connector link is
not necessary in this configuration. Mount the Scale
using the included 10-32 screw (or M5). Be sure the
Scale is properly aligned as the ReadHead is moved
(the Guide Clip will compensate for slight misalignment
in one direction only). Adjust Scale alignment if
necessary.
For accurate measurements, the guide clip must be mounted
perpendicular to the direction of travel of the ReadHead. The guide clip
should exert some pressure over the full range of travel on the
ReadHead so the two move as a single unit. Failure to use the guide
clip could void the warranty.