SENSTAR FlexPS, Руководство по эксплуатации продукта, Страница: 68 / 94

Introduction
Page 68 FlexPS Product Guide
Calibration terminology
UCM Parameter Parameter description Default
Cut Alarm Settings Detection parameters used to detect a cut intrusion.
Window (sec) The time period in which the specified number of cuts (Count) must occur to
trigger an alarm.
30
Threshold The received signal strength at which a cut is added to the Count total. 10
Count The number of cuts that must occur within the specified Window to trigger an
alarm. Counts the cuts that have signal magnitudes above the Threshold
setting.
4
Cut Profile (%) A percentage of the Window setting that is added to the time remaining in the
Window each time a cut is recorded.
20%
Climb Alarm
Settings Detection parameters used to detect a climb or crawl-under intrusion.
Window Sets the time period in which the specified Time of a climb or crawl-under
attempt must accumulate to trigger an intrusion alarm.
30 sec.
Threshold The received signal strength at which a climb or crawl-under attempt is added
to the total Time.
10
Time Sets the total Time, that the received signal must exceed the climb Threshold
before a climb or crawl-under attempt will trigger an intrusion alarm. The Time
must be accumulated within the climb alarm Window setting.
3 sec.
Filter Settings The filter settings are used to customize the sensor’s frequency response to
the type and condition of the fence on which it is mounted. Correct adjustment
of the Filters increases the signal to noise ratio and helps to screen out the
ambient background noise that is always present.
There are two slider controls, which enable you to set the processor’s
frequency response band between 100 Hz and 900 Hz.
NOTE : The filter settings are covered in Chapter 4 Maintenance on page 79 ,
and should be adjusted only if problems are encountered at specific
frequencies.
lower corner
300 Hz
upper corner
700 Hz
Power Grid Enables onboard filters to screen out high levels of EMI common to solar
farms, electrical generation stations and transformer stations, and to other
high EMI installations. Select 50 Hz if the local power grid uses 50 Hz power;
select 60 Hz if the local power grid uses 60 Hz power; use the default setting
of OFF if the site is not a high EMI location.
NOTE : The Power Grid setting is covered in Chapter 4 Maintenance on page
79 , and should be adjusted only if problems are encountered at the 50 Hz or
60 Hz frequencies.
OFF
Gain Settings Two settings that boost/attenuate the received signal from the sensor cable
(detection and audio).
Cable Sets the processor’s input signal gain (8 distinct settings - 1 to 8). 2
Audio Sets the amplification level for the audio signal received from the sensor cable
(0 to 7).
4
Misc Settings A setting used to screen out ambient noise from environmental effects.
Ambient
Compensation
When Ambient Compensation is enabled, the processor evaluates the signals
from the sensor cable to obtain data on environmental activity that is typically
gradual and of long duration. This ambient signal can effectively be ignored
and only the signals which are outside this ambient, consistent region, are
evaluated for Cut and Climb Alarm significance. ON