TRI-GARD 555LS/557LS SIGNATURE SERIES™
audio glassbreak detectors employ state-of-the-art Advanced
Signature Analysis
™
algorithms to sample four bands of audio
instead of one or two like most other detectors. Digital Signal
Processing (DSP) is used to continuously sample and analyze
the sound. Within milliseconds after an audio “event” begins,
the microprocessor starts crunching data. Approximately 1200
comparisons and decisions are made before an event is rejected or confirmed about 0.3 seconds later. Eight glassbreak signature models and four false alarm models, stored in memory ,
are referenced during the confirmation process. The result of
this high-tech performance is more accurate glassbreak detection and improved false alarm rejection in tough environments.
TRI-GARD 555LS/557LS FEA TURES
• Specified for plate,wired, tempered & laminated glass
• Microprocessor-based for better discrimination
• Advanced SignatureAnalysis™
• Signature Supervision
• Omnidirectional sensitivity
• Automatic sensitivity adjustments
TRI-GARD 555LS/557LS APPLICA TIONS
• Glassbreak protection in residential,commercial
and industrial areas
• Protects plate,wired, tempered & laminated glass
• Omni direction detection to protect multiple windows
•Areas with closed drapes or blinds will reduce range.
T est with 517 tester for specific range
•Wall orceiling mount installations
SPECIFICATIONS
SENSING:Audio/air,open space (enclosed area)
RANGE: 25’ for plate, wired, tempered & 20’ for laminated
glass. These ranges are for 1’ X 1’ minimum glass size. For
glass size down to 6” X 10” the range would be reduced by
1/2.
GLASS SIZE: Above stated range is for 1’ X 1’
THICKNESS:Plate- 3¼32" to1¼2"
Tempered–1¼8" to1¼2"
Wired–1¼4"to 1¼2"
Laminated–1¼4" to1¼2"
SENSING FIELD: Omni-directional
S
ENSOR: Electret condenser (F .E.T .pre-amp)
OPERATINGVOLTAGE: 10–16VDC filtered and regulated
P
OWER CONSUMPTION:30 ma @13.6VDC normal, 40 ma @
16 VDC.
O
PERATING TEMPERATURE:14° to120° F (-10° to 49° C)
STORAGE TEMPERATURE:-13° to185° F (-25° to 85° C)
RELA YACTIV ATION TIME: 3 seconds
A
LARM LED: Latch orauto reset
A
LARM RELAY:SPDT (Form-C)- contacts .1Amp @30VAC/24
VDC Relay is energized upon power up (C & NC are closed)
TAMPER CIRCUIT:Normally closed switch-contacts 50
milliamps @ 30VAC/24VDC.
V
OLTAGE
MONITOR
: Low or novoltage causes alarm relay to
open. Lowvoltage <10VDC causes red LED to flash slowly
I
NSTALLATION
: Hardwire 6wires including 2 for tamper
Testing: Follow instructions & test once a year
MOUNTING: Surface– screw andanchors included
C
OLOR
:White or Cabin Brown
SIZE:3" x 3" x 3¼4"
TRI-GARD555LS/557LSSignature Series
™
Audio Glassbreak Detectors
NOTE 1: The use of mini-blinds, shades, drapes* and sun film* can
reduce the range of the detector by 50%. Since room acoustics and window coverings can vary considerably, all detector installations should be
checked with the 517 tester.
* Not for sound deadening drapes
* Tested w/ 3M sun film #SH2CLAR (3M is a trademark of 3M Company)
555LS
557LS
MOUNTING LOCATIONS
The Tri-Gard can be mounted on any type of ceiling or wall.
The detector should be no closer than 4 feet from the glass to
be protected.Since the sound waves of breaking glass travel
directionally out at a 90° degree angle from the broken window, the best mounting location is on the opposite wall,
assuming the wall is within detection range.
For maximum performance install the detector in direct line of
sight to all glass that you are protecting and locate the detector
at least 1 foot from any corner or ceiling.
For best false alarm immunity the detector should be mounted
at least 4’ from the glass to be protected and from noise sources
such as kitchen sinks,stereos,televisions,etc.
WALL MOUNTING
Mount the detector on an opposite or adjacent wall from the
glass to be protected.
The unit should be mounted at least 6 feet from the floor. This
will ensure that no furniture or other objects will block the
direct line of sight, thereby providing maximum glassbreak
protection.
NOTE:The unit should not be mounted on the same wall as
the glass to be protected.
CEILING MOUNTING
Mount the 555LS/557LS in any location on the ceiling which
is in direct line of sight of the glass to be protected.
T o ensure maximum glassbreak detection do not mount the
detector within 1 foot of any side wall.
Mount the 555LS/557LS on any solid material.
555LS/557LS OPERATIONS AND WIRING
On power-up the microprocessor will momentarily turn on
each LED.
LEDs Operation:
• Green LED ON–solid indicates unit is properly powered.
• Green LED OFF–indicates that the relay has dropped out,due
to the detector being tripped or no/low power (<10VDC).
• Green LED BLINKS–slowly to indicate that the unit is in test mode
(see test mode).
•Green LED FLASHES–when there are background noises
present within the detection range.
•Amber LED ON– solid indicates that the “Signature Supervision”
has not been able to test all circuits within the last120 hours.
• Red LED ON–solid indicates that the detector has been tripped
and is in a latched alarm memory condition.
• Red LED FLASHES–to indicate that there is an alarm for low
power condition, input voltage is (<10VDC).
TESTING THE 555LS/557LS
DIP SWITCH 1– (T est Mode Enable)
T est mode allows the installer to properly test the555LS/557LS
with the IEI 515 OR 517 GLASSBREAK SIMULATOR.
NOTE:The 515 tester will test for basic operation of detector,
such as microphone response and proper alarm relay operation
, but it will not test for proper range. The 517 tester is required for
proper range verification.
Manual Test Mode with 515 or 517 T ester:
T o enable test mode momentarily move DIP switch 1 from the
off position to the on position and then return it back to the off
position. Thegreen LED will blink slowly . You have two
minutes to test the detector.Each time you trip the detector ,indicated by the green LED turning off and the red LED turning on
for three seconds,you will re-start the two minute test time
(NO TE: the red LED will not latch during test mode even if you
have DIP switch 2: alarm memory on).If you do not trip the
detector within the two minute test period, the detector will return
to normal glass break mode,indicated by the solid green LED.
T o immediately return to normal glass break mode after the
detector is tested correctly ,simply interrupt power for one second.
Remote T est Mode with 517 Tester:
T o test remotely with 517 tester move DIP switch 1 to the on
position. Step back about 10 feet from the detector and press
the tester “T o T est” button. The detector should now enter test
mode indicated by the slowly blinking green LED. Position the
517 near the farthest point of the protected glass and point the
tester directly toward the detector. Close any curtains, drapes
or blinds and hold tester behind window covering to ensure
proper location of detector. Select the specific glass type and
size and push the appropriate key on the tester. Observe that
the unit trips consistently . When finished you can exit test mode
by pressing the tester “T est Off” button, interrupt power momentarily or simply let the 2 minute test window expire.
NOTE:With DIP switch 1 in the on position, test mode can
be entered remotely at any time with the 517 tester
NOTE:T est mode does not prevent the 555LS/557LS from
detecting breaking glass.
INST
ALLATION OPTIONS
DIP SWITCH 2– (Alarm LED Latch Mode)
• OFF–Red LED lights for 3 seconds on alarm and then
turns off.
• ON– Red LED will latch in memory upon an alarm.
Interrupt power or turn dip switch 2 off & on to reset.
DIP SWITCH 3– (Signature Supervision)
• OFF– Normal operation- without “Signature Supervision”.
• ON– Enables “Signature Supervision” processing.
SIGNA TURE SUPERVISION
™
Using a microprocessor enables the detector to process more
data to make better decisions in determining a glass break
event and also provide more information back to the user
regarding the operating status of the device. A glass break
event occurs over a broad frequency range. There are frequencies present from10 to40,000 cycles during a glass break
event.Signature Supervision monitors the input from the microphone and the associated circuitry to insure that the unit continues to “hear” across the frequency spectrum.If,after120 hours
(5 days),the sensor has not heard the individual frequency elements associated with the signature frequencies within glass
break the amber LED will come on and stay latched to indicate
a potential trouble situation (NOTE:this does not trip the alarm
relay).When the detector has heard those particular frequencies associated with glass break,the amber LED will reset.
Clapping,for example,will often produce the range of frequen-
555LS
CIRCUIT
BOARD
557LS
CIRCUIT
BOARD
NOTE: Tamper spring is in hardware package with screws
THIS DEVICE COMPLIESWITH P ART15 OFTHE FCC RULES.OPERATION IS
SUBJECT TOTHE FOLLOWINGTWO CONDITIONS: (1) THIS DEVICE MAYNOT
CAUSE HARMFULINTERFERENCE,AND (2)THIS DEVICE MUSTACCEPTANY
INTERFERENCE RECEIVED,INCLUDING INTERFERENCETHA TMA YCAUSE
UNDESIRED OPERATION.
WARNING: Changes or modifications to this unit not expressly approved by the p arty
responsible for compliance could void the user’s authority to operate the equipment.
NOTE:This equipment has been tested and found to comply with the limits for a Class
B digital device,pursuant to Part15 of the FCC Rules . These limit s are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates,uses and can radiate radio frequency energy and,if not
installed and used in
accordance with the instructions,may cause harmful interference to radio communications.However,there is no guarantee that interference will not occur in a p articular
installation.
If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on,the user is encouraged
to try to correct the interference by one or more of the following measures:
• Re-orient or relocate the receiving antenna
• Increase the separation between the equipment and the receiver
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected
• Consult the dealer or an experienced radio/TV
technician for help
IEI Limited Warranty:
Because the manufacturer does not install or connect this security device the manufacturer cannot guarantee its performance. Therefore ,there are no warranties,
expressed or implied (except as stated below),attached to the sale or use of this prod uct.
The manufacturer warrants against defects in material and workmanship in this device
for 3 years from the date of manufacture.During the warranty period the
manufacturer,at its sole option ,will repair or replace free of charge any defective unit
returned freight prepaid. This warranty shall remain in force and ef fect for 3 years provided the unit was properly installed and operated,has not been subject to misuse and
has not been repaired or altered other than by the original manufacturer .
The foregoing states the buyer's sole and exclusive remedy for any breach of warranty
or for any claim,whether sounding in contract,tort,strict liability ,or negligence, based
upon any defect in this security device.
The manufacturer shall in no event be responsible for any incidental or consequential
damages incurred by the buyer.
This warranty supercedes all previous warranties.
cies that are present in glass break and can be used to reset
the unit.Notice that while clapping will reset the Signature
Supervision,it will not cause an alarm because it does not meet
other criteria that the microprocessor is using to determine a
true glass break event.This feature is dip switch selectable.
NOTE: If the amber LED is lit and is unable be to reset by
clapping,the customer should contact the installing dealer.
PRE-TESTING THE TRI-GARD 555LS/557LS
FOR DESIRED LOCATION
Pre-testing of the detector prior to final installation can be
performed to ensure that the detector is installed in the
proper location with respect to all glass being protected.
The IEI 517 Glass Break Simulator is required to perform
this test.
WARNING:
The 555LS/557LS detector has been designed to detect
glass break within a specified range from the glass–(25' for
plate, tempered,and wired glass glass and 20' for laminated
glass). Y ou should not extend p ast these rated ranges for any
reason. Acoustics of different areas can artificially extend the
range of the tester.
1) Connect a 9Volt DC alkaline battery or 12 VDC power
source.
2) Proceed to section: T esting the 555LS/557LS
NOTE:the red LED will flash slowly indicating low voltage
(input voltage <10VDC) and also the relay will not be ener-
gized (common and normally closed will be open).
CAUTIONS
• T o improve false alarm rejection do not use for 24 hour applications in occupied areas, areas where white noise, such as air
compressors or machinery may be present or within 4 feet of the
glass being protected.
• Performance of any audio detection device depends upon
an audible signal and may be compromised when detecting
glassbreak if little or no sound is generated. For example,
avoid installations with sound insulating window coverings.
427 TURNPIKE STREET, CANTON,MA 02021 U.S.A.
800-343-9502 OR IN MA 800-733-9502
555/557 REV. 1.01 617-5550 MADE IN U.S.A.
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