Microscan HawkEye 1500 Series, Руководство по верификации

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v2.4.1, Nov 2008 HawkEye™ 1500 Series Verification Manual 1-1
1
Wh
y V
e
rification?
1
CHAPTER 1
Why Verification?
This chapter introduces verification on the HawkEye™ 1500 Smart Camera.
Introduction
One axiom of implementing traceability is that the Data Matrix code will almost
never get better than it is at the instant it leaves the marker. Throughout the
marking process, verification ensures that the marks are being made correctly,
enabling corrections to be made to the marking method before it drifts out of
tolerance and produces unusable or incomplete marks.
To accomplish this, a verifier, as opposed to a reader, is needed to show that a
mark can be read, and to determine the quality of the mark. A reader only
provides a read pass/fail signal to the automated production line. This digital
signal does not provide any trending information to the marking equipment or
operators to alert them to a potential “line down” condition. Verifiers provide an
analog type sensor in the form of A through F letter grades. These grades provide
the marking equipment or the operators a warning that preventative maintenance
is needed. With that knowledge, the maintenance can be scheduled at a
convenient time versus whenever the machine breaks.