ACU-RITE Micro-Line T - Manual (Page 11)

8 MICRO-LINE Reference Manual
SETUP
( S - M
M
LEC =
)
x 1,000,000 S = Standard length
M = Measured length
• In the DRO mode.
• Place a standard of known length on the machine. Make sure it’s
parallel with the axis being measured.
• Put the readout in the absolute display mode ( ABS/INCR key).
• Using an indicator, locate one end of the standard.
• Press the ZERO key twice for the axis you are measuring.
“0” should appear on the display.
• Move the indicator along the axis until it reaches the opposite
end of the standard.
• Write down the length that is shown on the readout display for
that axis.
• Use the formula below to calculate the LEC for the axis you just
measured. Enter the result in the LEC parameter (previous page).
How to Determine the Linear Error Compensation
Follow this procedure for each axis:
Formula
Example
If the length of the
standard you used is
10” and the measured
length is 9.995”, then
the LEC for that axis
is 500 parts-per-mil-
lion (PPM).
(
10 - 9.995
9.995
LEC =
)
x 1,000,000
LEC = 500 PPM
(rounded to the nearest
whole number)
Note: If the measured length is greater than the standard length the
LEC value will be negative.
MLTmanual.QXD 2/12/02 4:10 PM Page 19