Omron V460-H User Manual page 55

3 Basic Operation
Readability Tables – DPM, Flat or Cylindrical / Curved Parts
The readability tables below show the calculated PPE (pixels per element) for a range of typical
code sizes (X-dimensions) at certain working distances. For a 1D barcode (high-contrast DPM): 2.0
PPE is suggested as a minimum. 2.5 PPE or more is preferred. For a 2D code (high-contrast DPM):
3.0 PPE is suggested as a minimum. 4.0 PPE or more is preferred.
A 10.0 mil 1D barcode should be read at a distance ≥ 150 mm. A 10.0 mil 2D code should be read at
a distance ≈ 75 mm.
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V460-H Industrial Handheld DPM Reader User Manual