Owner's Manual

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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 reject-

ed or confirmed about 0.3 seconds later. Eight glassbreak sig-

nature 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 detec-

tion and improved false alarm rejection in tough environments.

TRI-GARD 555LS/557LS FEATURES

• Specified for plate, wired, tempered & laminated glass

• Microprocessor-based for better discrimination

• Advanced Signature Analysis™

• Signature Supervision

• Omnidirectional sensitivity

• Automatic sensitivity adjustments

TRI-GARD 555LS/557LS APPLICATIONS

• 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.

Test 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-

¼32" to

¼2"

Tempered–

¼8" to

¼2"

Wired–

¼4"to

¼2"

Laminated–

¼4" to

¼2"

SENSING FIELD: Omni-directional

ENSOR: Electret condenser (F.E.T.pre-amp)

OPERATING VOLTAGE: 10–16 VDC filtered and regulated

OWER CONSUMPTION: 30 ma @13.6 VDC normal, 40 ma @

16 VDC.

PERATING TEMPERATURE: 14° to120° F (-10° to 49° C)

STORAGE TEMPERATURE: -13° to185° F (-25° to 85° C)

RELAY ACTIVATION TIME: 3 seconds

LARM LED: Latch or auto reset

LARM RELAY: SPDT (Form-C)- contacts .1Amp @30 VAC/24

VDC Relay is energized upon power up (C & NC are closed)

TAMPER CIRCUIT: Normally closed switch-contacts 50

milliamps @ 30 VAC/24 VDC.

OLTAGE

MONITOR

: Low or no voltage causes alarm relay to

open. Low voltage <10 VDC causes red LED to flash slowly

NSTALLATION

: Hardwire 6 wires including 2 for tamper

Testing: Follow instructions & test once a year

MOUNTING: Surface– screw and anchors included

OLOR

: White or Cabin Brown

SIZE: 3" x 3" x

¼4"

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 win-

dow 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

Summary of content (4 pages)

PAGE 1
TRI-GARD 555LS/557LS Signature Series ™ Audio Glassbreak Detectors SPECIFICATIONS 555LS 557LS 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.
PAGE 2
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. 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.
PAGE 3
555LS CIRCUIT BOARD NOTE: Tamper spring is in hardware package with screws 557LS CIRCUIT BOARD TESTING THE 555LS/557LS DIP SWITCH 1– (Test Mode Enable) Test mode allows the installer to properly test the555LS/557LS with the IEI 515 OR 517 GLASS BREAK 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.
PAGE 4
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.