Processor calibration
FlexZone Product Guide Page 75
Processor calibration
When calibrating the FlexZone processor for the first time, begin with the detection parameters in
the default settings.
The Sensitivity Profile
A Sensitivity Profile should be recorded for each FlexZone sensor cable (Side A cable, Side B
cable). The Sensitivity Profile records the sensor’s measured response to a fence disturbance
along the full length of the detecting cable. The profile will verify the sensor cable’s performance
and can identify problems on the fence. The Sensitivity Profile also serves as the baseline for
setting the Threshold at which Events are recorded and added to the Event Count.
Recording the Sensitivity Profile
The recommended method for creating the Sensitivity Profile is to drag a screwdriver or similar
instrument along the fence fabric 15 to 30 cm (6 to 12 in.) above, or below, the sensor cable.
Beginning at the start point of the detecting cable, place the screwdriver against the fence fabric
and apply consistent pressure as you walk along the side of the fence. Keep the pressure steady
and maintain a uniform pace as you drag the screwdriver along the fence fabric. When you reach
the first fence post, lift the screwdriver over the post. Continue dragging the screwdriver along the
fence fabric maintaining a consistent distance from the sensor cable until you reach the end of the
detecting cable. Keep the pressure of the screwdriver and your walking pace as consistent as
possible. Repeat this process from the end of the detecting cable back to the start point.
Note For a double pass installation drag the screwdriver along the fence
approximately halfway between the upper and lower cable passes. See
the UCM online help for additional details.
Note If a sensitivity profile indicates a drop of 20 dB within a 10 m length of
cable, it indicates that there is likely a problem with either the cable at
that location (e.g., improper conditioning, kinked, damaged cable) or
with the fence condition at that location (e.g., loose, sagging, stretched).
Tip Senstar recommends that you save a UCM file that includes the
recorded sensitivity profile. This can be useful for future maintenance
and troubleshooting activities.
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