User's Manual Part 4

ProScale M150, M250 and all products with General Purpose LCD Digital Displays 21 of 21
Calibration
Once installed, ProScale can be calibrated easily and quickly. Following is an example
for calibrating ProScale on a table saw fence. Other installations follow the same general
procedure.
1. Check to be sure installation of all parts is complete, all fasteners are secure, and the
readhead is plugged into the digital display.
2. Cut a part using the normal fence operation.
3. Do Not move fence until calibration is completed.
4. Measure the dimension of the part with the most precise measuring tool available (i.e.
digital calipers).
5. Press the zero key on the ProScale digital display then press and hold the PLUS key
to scroll until the measurement you just made is displayed. (The longer the PLUS key
is held down, the faster the display will scroll).
6. When the proper reading is reached, lock the display if desired. This prevents
accidentally re-zeroing of the display. See Section 4:
Lock Mode
If the direction of movement (+ and -) on the digital display is opposite the desired
direction, the display programming should be changed. See Section 4:
Programming
(Programming Parameter Pr0).
Maintenance
Although the ProScale will operate in a dry environment of non-conductive debris such as
sawdust, the system should be cleaned of excess debris when necessary. This will
prevent premature damage to the scale or readhead. Should the scale become difficult
to move, check to see if debris has built up under the readhead and remove if necessary.
Find and remove any burrs which may have developed on the aluminum scale. Do not
use any liquid lubricants on the scale assembly, as this may impede the readhead's
ability to operate properly and will attract other contaminants to the scale.
The Digital Display should be cleaned periodically with compressed air to remove any
dust on the lens and keys.
All mounting fasteners should be checked occasionally for tightness
.