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3M Library Security System
3M Accessories
4-23
E 3M 1999 September
Verifying that materials are protected with 3Mt
Tattle-Tapet Security Strips
When the VERIFIER switch is in the ON position, the
verifier light will identify which items in your
collection are protected with 3Mt Tattle-Tapet
security strips.
To verify that an item is protected, resensitize the item
as described earlier.
Make sure the Sensitize/Desensitize switch is in the
SENSITIZE position.
Place the item in the center of the Model 966 with the
item gently touching the vertical portion of the unit.
If the item is protected, the verifier will light. I f the
verifier does not light, then you will want to install a
3M Tattle-Tape security strip to protect the item.
Troubleshooting
No desensitizing or resensitizing
Symptom: The Model 966 will not desensitize or
resensitize any strip.
The Model 966 fails to operate or
“thump”.
Problem: The Model 966 is not connected to a
working power outlet.
Solution: Plug the Model 966 into a working power
outlet.
Problem: The optical sensor area may have
accumulated dust.
Solution: Clean this area by blowing or brushing
dust from the optical sensors.
! Caution
To reduce the risk of electrical shock, do not use
liquids to clean the optical sensor.
Optical
Sensor
Resetting the circuit breaker
The Model 966 will not operate if the circuit breaker
is open.
S Reset the circuit breaker on the back of the Model
966 one time.
S If the Model 966 does not operate correctly after
resetting the circuit breaker one time, call 3M
service at 1-800-328-0067.