Bosch SE2005 Guia de preparacion Pagina 23

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Security Escort | Installation and Setup Guide | 2.0
E
q
ui
p
ment Estimation
EN | 23
Bosch Security Systems | 1/09 | 33831E
c. Press the alarm on the
transmitter and remain at the
spot where you transmitted. At
the computer, observe the alarm
and accurately describe the
computed location over the
radio. The individual with the
transmitter should confirm the
reported location or describe
the actual location over the
radio. Either individual must
record all discrepancies,
including the actual and
computed locations. We recommend
using a map or floor plan and
drawing an arrow from the actual
alarm location to the reported
location. It is also helpful if
all successful alarm locations
are marked with a P (passed).
d. For areas where there are alarm
location problems, try facing in
different directions from the
same spot.
e. Generate additional alarms from
different spots to fully
understand the extent of the
problem.
f. You should generate alarms in
areas adjacent to the area with
the problem to see if they are
also affected.
Reviewing potential problem areas
Review the potential problem areas on
the maps with the customer to see
which areas cause them concern and
which areas they consider acceptable.
If the customer considers an area
acceptable, it is typically not worth
spending additional time trying to
improve the location accuracy in those
areas.
2.4.2 Improving the location accuracy
of an installation
Once we identify areas needing
improvement, what are the options to
improve the computed location
accuracy?
Note:
All changes using the following
steps potentially change the
computed locations for all alarms
at or around the changed area.
After any change is made the entire
vicinity around the changed area
must be verified.
Typically, the first thought is to
add more receivers in the problem
area. Generally, this is a bad
approach. If the system was
properly designed using the
recommended grid layout, adding
extra receivers in any area of the
grid distorts the response in
adjacent areas and floors. While it
may seem to fix the problem area,
typically, it creates more problems
in adjacent areas. The exception is
when an area is shielded by
something such as wire mesh in the
walls that prevent the RF
transmitted signal from passing
through. Additional receivers might
need to be added in the shielded
area to insure that all alarm
transmissions are heard.
Verify the location of the
receivers in the transponder
database matches the physical
location and the receivers are
indicated at the correct floor
level. It is also important that
receivers physically stacked
directly above one another on
floors of a building are also
located at the same X and Y
coordinates in the database.
Try changing the transponder
database location of receivers (not
the actual physical location) one
at a time while testing the alarm
location response, using one of the
testing methods above. For example,
if alarms are getting pulled
outside a building in one area,
move the closest receiver (in the
transponder database) to that area
a little further into the building
and retest. If the area can be
corrected using this method, verify
the surrounding areas to make sure
they were not adversely affected.
It is generally better if the
correction is done in small steps
while verifying the adjacent areas,
rather than trying to correct the
entire error in one step.
Version 2.03 and higher of the
Security Escort software allows
individual receiver sensitivity to
be set in the transponder database.
Receivers can be adjusted from 50%
to 149% of their normal
sensitivity. No physical receiver
changes or upgrades are required.
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