Our Absolute (ABS) capacitive encoder technology has been
sold since 1997. This technology
measures the actual sensor position by reading a pattern which is unique
at any given location over its length. This results in a measuring
system with a high immunity to loss of position due to motor electrical
noise, power transients, or magnetic fields. There is no position loss
when the digital readout is turned off, or when power is interrupted.
This technology has been used for Model
150 and Model 250 ProScale systems and products manufactured since 1997.
It is especially appropriate
for environments with high voltage wiring, dust collection systems, and
where a zero position cannot be quickly re-established.
Components of an Absolute
(Model 150/250) measuring
Scale (almost always green):
The aluminum extrusion for the Absolute digital
scale is available in several different sizes:
0.75" wide x 0.25" thick is
Model 150 or
2.02" wide x 0.75" thick is
0.75" wide x 0.75" thick is
Model 250-S (now obsolete)
Top View Side
Note the wire
exits from the corner on one end of the housing. (Older or
custom encoders may have a flat gray
Until May, 2011 the housing is gray.
After 5-2011 the housing is Blue/Gray.
The base is black (older
models may have
a gray base).
Newer models (since 2004) have black and silver labels
that show the part number and serial number. A "C" or "V" in the part number
indicates a coiled cable.
An "H" in the part number indicates a high-speed
A "G" indicated an encoder used in a system that is operated
An "S" indicates use with a Model 580 System.
Standard cable lengths
are available up to
Custom cables available up to 360 inches. (Consider an
available for longer ranges)