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MS652 User’s Manual
3.3.10 Code 39 Security Level
The engine offers four levels of decode security for Code 39 bar codes.
There is an inverse relationship between security and engine
aggressiveness. Increasing the level of security can reduce scanning
aggressiveness, so select only the level of security necessary.
.•
Code 39 Security Level 0
: The engine operates in its most aggressive
state, while providing sufficient security in
decoding most in-spec bar codes.
•
Code 39 Security Level 1
: This default setting eliminates most
misdecodes.
•
Code 39 Security Level 2
: This option applies greater bar code security
requirements if Security Level 1 fails to
eliminate misdecodes.
•
Code 39 Level 3
: If you selected Security Level 2, and misdecodes still
occur, select this security level to apply the highest
safety requirements.
NOTE Selecting this option is an extreme measure against mis-decoding severely out-of-spec
bar codes, and significantly impairs the decoding ability of the engine. If this level of
security is required, try to improve the quality of the bar codes.
