User`s manual

ProScale M150, M250 and all products with General Purpose LCD Digital Displays 14 of 44
Connector Link
Guide Clip
Installation
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 of ProScale. 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 on the scale will simplify the
process.)
2. Determine an appropriate mounting location for the system. 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.
Mount the readhead using three screws or bolts. Mount one end of
the connector link to the scale using an M5 (or 10-32) screw 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). The connector link must
be mounted in the same direction as the scale (see figure below).
Note: Failure to use the connector link could void the warranty.
4. If you choose to hold the scale stationary and move the readhead to measure, 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 a M5 (or 10-32) screw. 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.
Note: Failure to use the guide clip could void the warranty.