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Decal Maintenance and Replacement
This is a guide for what to expect as decals age. BAI decals have a Limited Warranty for two
years after purchase, and we expect them to work reliably for up to 5 years. There is really no
maintenance on the decals, but they will degrade as they grow older, and their ability to reflect
laser light will drop. To illustrate this, the images below show the progressive drop in decal
reflectivity in a way that the human eye can see.
This is an analogy to assist in understanding what occurs as
decals age, it is not an exact representation. The example to
the right shows how a new barcode decal would appear to the BAI
reader. This decal will reflect the maximum laser light back to the
reader and is very easy to read.
After Two Years
As time passes, the decal will reflect less laser light back to the reader. At some point in the
first two years of use most decals will degrade to the point where
only 75% of the laser will be reflected back to the BAI reader.
Which decals will degrade first is impossible to predict, but decals
that show excessive loss of reflection within two years of purchase
will be replaced under warranty. BAI readers have no difficulty
reading decals with 75% reflectivity.
After Four Years
When most decals are around four years old they will only reflect half of the laser light back to
the BAI reader. With a decal that has degraded to this level there
can be problems reading it. Vehicle speed and distance from the
reader will have a big influence on whether the decal will be read.
If a four year old decal does not read reliably, the best course of
action is to replace it. BAI recommends replacing decals after four
years of use to prevent reading problems.
After Five Years
At five years of age most decals are at the end of their effective lifespan. Some decals will
continue to read reliably and give no trouble, but there is no way to
predict which ones will work beyond five years. When an older
decal becomes unreliable, the best course of action is simply to
replace it.
BAI recommends that sites be proactive in maintaining their decals. To prevent reading
problems due to older, degraded decals the site should replace each decal after 4 years of
use. However, if the site prefers to use decals for the maximum possible time, simply wait for
the decal to become unreliable and replace it at that time.
Ver. 1.8 Barcode Automation, inc 800-528-9167 FAX: 407-327-6172 26
Let All Good Men
Come to the Aid
Of Their Country
Let All Good Men
Come to the Aid
Of Their Country
Let All Good Men
Come to the Aid
Of Their Country
Let All Good Men
Come to the Aid
Of Their Country
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