RJS Inspector D4000 Auto Optic (FIRMWARE version A.05 and Earlier) - Manual (Page 75)

Operator
’
s Guide Appendix K
002-5564 RJS, Minneapolis, MN 68
Nanometer (nm)
A unit of measure used to define the wavelength of light, equal to 10-9 meter.
Nominal
The intended value for a specific parameter. Tolerances are generally specified as
positive and negative deviations from this value.
No-Read (Non-read, Non-scan)
The absence of data at the scanner output after an attempted scan because of no code,
defective code or operator error.
Nominal Size
The target size for a specific element or group of elements.
Numeric
A character set that contains only numbers.
Omni-directional
The ability to read a bar-code symbol from any angle as long as the bar-code passes
across the scanner window.
Opacity
The property of a material that minimizes the show-through of printing from the back
side or the next sheet.
Overhead
The number of characters in a symbol required for start, stop and checking.
Over-laminate
A coating or material adhered to the scanning surface of a bar-code symbol.