
FlexPS Product Guide
Page 79
4
Maintenance
The FlexPS sensor requires minimal maintenance to ensure proper operation. However, setting up
and following a maintenance schedule based on your site-specific requirements can ensure
proper detection performance, prevent nuisance alarms and extend the operational lifetime of the
system. The frequency at which the maintenance should be scheduled depends on your security
requirements and on the installation environment. This section includes the recommended
maintenance activities along with suggested intervals.
1.
Perform a visual inspection of the installation (once per month). Check for the following:
•
fence condition - ensure the fence is in good condition and that there are no loose panels,
loose fittings or metal bits that can move with the wind and cause nuisance alarms (a
shake test in which you grip the fence fabric in the middle of a panel and gently shake it
with an increasing motion can help identify any loose pieces)
•
there are no washouts or depressions under the fence
•
vegetation beside and above the fence is cut back and cannot make contact with the
fence
•
the sensor cables are held snugly against the fence fabric and the cable ties are holding
the cable securely in place
•
there is no loose sensor cable
•
connectors and terminator enclosures are properly mounted according to the installation
instructions
•
there is no corrosion or moisture inside the processor enclosure
2.
Physically test the system (once per week).
•
use a screwdriver to simulate a series of cut intrusions and verify that cut alarms are
declared each time
•
climb the fence at several locations and verify that climb alarms are declared each time
3.
Record a UCM sensor response plot (quarterly).
Connect the UCM to the processor and record a sensor response plot. Note the environmental
conditions at the time of the recording. Review the plot to examine the ambient noise level,
and compare the plot to any previously recorded plots. Depending on the weather conditions,
the recorded plots should be quite similar. During inclement weather the noise level will be
higher, and during good weather with very little wind, the noise level should be extremely low.
If there is a significant amount of noise indicated during good weather, examine the cable and
cable connections for possible problems.
4.
Battery test (once per year)
If your processor(s) includes battery back-up, disconnect the power to the processor and allow
it to run on battery power until the battery runs down and the system shuts down. Note the
duration of the battery run-time, and replace the battery when the run-time no longer meets
the specification (minimum battery runtime = 8 hrs for a fully charged battery).
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