CipherLab CP30 Reference Manual page 171

CP30 Mobile Computer
Level 4
Security Level
162
Reference Manual
All barcodes must be successfully read three times before being decoded.
Select a decode security level appropriate for the barcode
quality when reading delta barcodes such as Code 128,
Code 93, UPC/EAN.
Security Level 0 – This default setting allows the scan
engine to operate in its most aggressive state,
providing sufficient security in decoding most "in-spec"
barcodes.
Security Level 1 – Select this option if misdecodes
occur. This level should eliminate most misdecodes.
Security Level 2 – Select this option if Security Level 1
fails to eliminate misdecodes.
Security Level 3 – Select this option if Security Level 2
also fails to eliminate misdecodes. However, selecting
this option impairs the decoding ability of the scan
engine. If this level of security is necessary, try to
improve the barcode quality.
Level 0