ACU-RITE VUE READOUTS - Manual (Page 57)

VUE 43
II – 1 Installation Set
u
p
Linear Error Compensation
Linear error compensation can be applied, if the results of the
comparison with a reference standard show a linear deviation over the
whole measuring length. In this case the error can be compensated by
the calculation of a single correction factor.
To calculate the linear error compensation use this formula:
Correction factor LEC = ((S – M) / M) x 10
6
ppm with
Example:
If the length of the standard used is 500 mm, and the measured length
along the X-axis is 499.95, then the LEC for the X-axis is 100 parts per
million (ppm).
LEC = ((500 – 499.95) / 499.95) x 10 6 ppm = 100 ppm (rounded to
the nearest whole number).
8 Once determined, the encoder’s error information is entered
directly. Press the TYPE soft key to select LINEAR compensation.
8 Enter the compensation factor in parts per million (ppm) and press
the ENTER key.
S measured length with reference standard
M measured length with device at axis