User Manual

Section 4 SETTING OF INSPECTION CONDITION

ZFV-C

User’s Manual

Section 4

Detecting Presence of Character String (CHARA)

Select this item to check for presence of character strings.

There are two measurement items for [CHARA]: [CHARA1] and [CHARA2].

● CHARA1

Select this item to check for presence of the entire character string printed on plain

background. Judgment is performed by monitoring changes in density (brightness) of

the registered character string. Errors in characters, missing dots, etc. cannot be

detected. This item is suitable for applications such as detection of presence of prints

on chips and presence of entire characters of the best-before date.

Example: Detection of presence of prints on chip

● CHARA2

Select this item to detect omission of single characters.

Errors in single characters, missing dots, etc. cannot be detected. This item is suitable

for applications such as detection of missing character in character strings such as the

best-before date.

Example:

CHARA1

505

NG due to absence

of characters

CHARA2

505

NG due to absence

of a character