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System operation
Turning your system on and off
There are two possible methods of powering the system:
• The system may be hard-wired into the power distribution
panel of the facility’s electrical system, in which case, the
system is switched on or off at a power disconnect switch or
at the circuit-breaker for the circuit that supplies power to it.
• The system may be equipped with an AC power cord (or
two AC power cords, one at each end of the detection
system), in which case the system is on while power cord(s)
are connected to live power outlet(s) and off when power
is disconnected.
In the second case, the system can of course also be switched
on or off at the circuit breaker for AC power outlet(s) to which
the system is connected.
Note: If the detection system is connected to power at both
ends, you must connect or disconnect power at both
ends of the system.
Figure 3 Detection lattice with AC power cord
Verifying system operation
Your system should be inspected daily for proper operation. To verify the system, walk through the system corridor with a secured
library item. This should result in an audible alarm and flashing alarm lights in the detection lattices. There is no need for repetitive
walk-through testing. During normal operation, the current patron count is displayed. Walking through each corridor should
increment the patron counter as expected, depending on how patron counting is configured (by the technician) for the system.
• If patron counting is configured to count patrons as they enter, the patron count should increment the patron count by one as you
enter and not increment as you exit through the corridor.
• If patron counting is configured to count patrons as they exit, the patron count should not increment as you enter, but it should
increment by one as you exit through the corridor.
• If patron counting is configured to count patrons as they enter and exit, the patron count should increment by one as you enter
through the corridor, and then increment by one again as you exit through the corridor.
All lattices in the system should be configured to count patrons in the same way. If the detection system is to be used with the optional
3M
™
Stats & Status Software for 3M
™
Detection System Model 8900–9900 Series, the patron counting method should be both.
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