CIAS Elettronica S.r.l.
Ed. 1.3
Installation Manual
Page
67
of
78
PYTHAGORAS 3
Scenario “D” : AND with Anti-creep
Selecting this option will produce an alarm if at least one MW barrier pair and the middle IR or
MW and bottom IR, D IR Medium, D IR High reach alarm conditions or if only
the bottom IR (anti-creep) reaches alarm condition.
MW
and then
Low IR, or Middle IR, or High, or disqualification
Alarm
Doppler
and then
Low IR, or Middle IR, or High, or disqualification
Alarm
IR Low
Alarm
IR Middle
and then
MW, or Doppler, or Low IR, or High IR, or disqualification
Alarm
IR High
and then
MW, or Doppler, or Low IR, or Middle IR, or disqualification
Alarm
Disqualification
and then
MW, or Doppler, or Low IR, or Middle IR, or High IR
Alarm
This scenario allows an increased probability of detection in positions where it may be possible
to elude the detection by crawling on the ground for example where the barriers overlap when
the length of one barrier is insufficient.
Note:
middle IR is optional.
Scenario “E” : AND with Anti-creep and Anti-climb
Selecting this option will produce an alarm if at least one MW barrier pair and the middle IR,
D IR Medium reach an alarm condition or if only the bottom IR (anti-creep) or only the
top IR (anti-climb) reach alarm conditions.
MW
and then
Low IR, or Middle IR, or High, or disqualification
Alarm
Doppler
and then
Low IR, or Middle IR, or High, or disqualification
Alarm
IR Low
Alarm
IR Middle
and then
MW, or Doppler, or Low IR, or High IR, or disqualification,
Alarm
IR High
Alarm
Disqualification
and then
MW, or Doppler, or Low IR, or Middle IR, or High IR
Alarm
This scenario allows an increased probability of detection in positions where it may be possible
to elude the detection by crawling on the ground or climbing.
Note:
middle IR is optional.
Scenario “F” : OR
Selecting this option will produce an alarm if any single barrier reaches an alarm condition. For
example, only bottom IR or only MW or only middle IR or only top IR or only the Doppler.
The selection of this option gives the greatest probability of alarm but also creates the greatest
probability of false alarms and should only be used in the highest security situations when a
high false alarm rate is acceptable.
Note:
middle IR is optional.
Important Note:
The indication to the processor of disqualification of any of the three IR
barriers available in the Pythagoras3 barrier, produces not only the activation of the appropriate
relay on the receiver but also a reconfiguration of the MW barrier and the Doppler, reducing the
sensitivity by 3 steps from the sensitivity set during installation, while in the Doppler Sensor the
sensitivity becomes half.. For example if the installed value of sensitivity is set to the default
value of 7, when an IR barrier signals disqualification the MW sensitivity is reduced
automatically to 4. In these alarm conditions from only the MW barrier or only the Doppler
Sensor an alarm is produced for any scenario selected. In this way better advantage can be
taken of the detection capabilities for each technology in relation to the probability of detection
minimising the production of false alarms by using the best operational parameters when real
events can reconfigure the functionality of the entire barrier without losing the capability to
protect the zone even in thick fog or heavy rain.
Содержание PYTHAGORAS3
Страница 82: ...NOTE ...
Страница 83: ...NOTE ...
