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3M Library Security System
3M Accessories
4-17
E 3M 1999 September
4.8 3Mt Bookcheck Model 955
(Not For Use With Recorded Magnetic
Media)
Description/Characteristics
The 3Mt Bookcheck Model 955 is designed to
desensitize and resensitize 3Mt Tattle-Tapet
Security Strips. This includes strips applied in or on
books, magazines, periodicals, and compact discs.
The Model 955 is not intended to be used with
recorded magnetic media such as audio cassettes,
video cassettes or computer software.
The Model 955 also has a verifier switch and light.
When the verifier switch is in the ON position, the
verifier light identifies materials which are protected
with active 3M Tattle-Tape security strips.
Security strips and labels on protected items must be
properly desensitized so the items can be carried
through the detection system without causing an
alarm.
When items are returned, the security strips can be
resensitized. Improperly resensitized items will not
alarm when passed through the detection system.
Model 955
Installation
The Model 955 may be placed either on or under the
circulation counter.
Voltage Selection
The Model 955 is capable of operating from a
nominal voltage of 115 volts or 230 volts. The voltage
selection switch on the back of the Model 955 must be
moved to the proper position before it may be used for
the first time.
Set the voltage selection switch to the 115 position
when operating from 100 to 130 volts.
Set the voltage selection switch to the 230 position
when operating from 200 to 240 volts.