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3M Accessories
3M Library Security System
4-2
E 3M 1999 September
4.1 3Mt Handheld Desensitizer Model
766 (For Use With Recorded Magnetic
Media)
Description/Characteristics
The 3M Desensitizer Model 766 is designed to
desensitize surface-applied 3Mt Tattle-Tapet
Security Strips. This includes security strips which
have been applied to recorded magnetic media such as
audio cassettes, video cassettes, or boxed computer
software.
Security strips on protected items must be properly
desensitized so the items can be carried through the
library system without causing an alarm.
Model 766
Installation
The 3M Model 766 is a non-electric, handheld device
which requires no installation. However, the security
cable should be attached to prevent unauthorized
removal.
Operating Instructions
Draw the 3M Model 766 across the marked article
with the desensitizing element in full contact with the
security strip.
Only one pass is necessary to fully desensitize a
security strip.
Passing the 3M Model 766 across the security strip
first in one direction and then in the other (scrubbing
motion) may partially resensitize the security strip and
cause unwanted alarms.