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3M Accessories
3M Library Security System
4-16
E 3M 1999 September
Troubleshooting
Problem: The Model 951 will not resensitize any
strip.
D The Model 951 is not connected to a
working power outlet.
Solution: Plug the Model 951 into a working power
outlet.
D The i nternal thermal sensor is open.
The resensitizer may have been used
or turned “ON” for too long a time,
allowing it to over heat. The
recommended duty cycle is one
minute on and five minutes off.
Solution: Allow the Model 951 to cool.
Problem: Poor or inconsistent resensitizing.
D Passing the Model 951 along the
length of a security strip too fast.
Solution: Slow the speed for resensitizing to
approximately three inches [75 mm] per
second.
D The center of the Model 951
resensitizing element is not directly
over t he security strip.
D The Model 951 is more than 1/4 inch
[6 mm] away from the security strip.
Solution: Verify that the Model 951 is being used
directly over the security strip and is not
more than 1/4 inch [6 mm] away from the
security strip.
Problem: Cracked or damaged housing.
Solution: Discontinue use immediately. The Model
951 is not repairable. Replace the unit.
Security Strips Used with the 3Mt
tt
t Resensitizer
Model 951
3Mt Tattle-Tapet Security Strips
B1
B2
DCD-2
Security Strip Application
Security strips should always be applied to surfaces
which are flat, clean, dry and at room temperature. For
maximum adhesion, minimize touching the adhesive
surface of the security strips.
Typical Items Used with the 3M Resensitizer
Model 951
Books
Magazines
Periodicals
Compact discs
Exceptions
Keep credit cards, recorded magnetic media
(audio cassettes, video cassettes, computer
software), stem-wind and self-wind wrist
watches at least six inches [150 mm] away from
the 3M Model 951 surface to prevent magnetic
damage.
Security Strip Storage Conditions
Store security strips at 50° -- 9 0 ° F(10° -- 3 2 ° C) and
at 20 -- 70% relative humidity.
Store security strips in a clean area and out of direct
sunlight. Rotate stock.