Instruction manual

Readheads

ABS style readheads have “BLACK END OF SCALE” labels on the

cover, and the telephone-style wire exits from the corner of the housing.

Extreme care must be taken not to damage the six brass “fingers” inside

the readhead housing. ABS style readheads, used in all Model 150 and

Model 250 systems, must be mounted on ABS scales with a particular

orientation. Each readhead has an arrow on the label pointing in the

direction of the “BLACK END OF SCALE” (each ABS style scale will

have one end painted black). This relationship is very important, since

the readhead will work, but produce erratic results if incorrectly installed.

To insure proper operation, be sure the arrow on the readhead is

pointing toward the BLACK end of the scale. The standard readhead

has 3m (10 ft.) of cable. For special cable lengths, contact Accurate

Technology, Inc. The ABS style readheads are standard in the Model

150 and Model 250 systems.

Incremental style readheads do not have labels on the cover, and the

telephone style wire exits from the center of the housing. Extreme care

must be taken not to damage the twelve brass “fingers” inside the

readhead housing. Incremental readheads may be mounted on

incremental scales with any orientation. Incremental readheads are

used in ProStop, ProKit, Measuring Kits, ProCaliper, and ProPanel.