Linear 550LS, 552LS Owner's Manual
TRI-GARD 550/552LS SIGNATURE SERIES
The Signature Series™Tri-Gard is the first audio glassbreak
detector with microprocessor based,multiple signature
analysis. The detector filters amplitude components of sound
so that it can process all sounds at the same volume and
eliminate the need for sensitivity adjustments. This gives
maximum detection accuracy even in muffled (i.e.curtains,
shades,blinds,small glass sizes) glassbreak applications.
Through advanced signature analysis,common false alarm
sources are filtered out,while providing for the best
glassbreak detection.
TRI-GARD 550/552LS FEA TURES
• Specified for plate,wired, tempered & laminated glass
• Microprocessor-based for better discrimination
• Multiple SignatureAnalysis
• Signature Supervision
• Omnidirectional sensitivity
• No sensitivity adjustments
• Environmental switch feature
TRI-GARD 550/552LSAPPLICATIONS
• 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 515 tester for specific range
•Wall orceiling mount installations
SPECIFICATIONS
SENSING:Audio/air ,open space (enclosed area)
R
ANGE: The 550/552 is listed for plate, wired, tempered & laminated
glass. It is listed with drapes*, Blinds, curtains & sun film
T
HICKNESS: Plate
3
¼ 32" to1¼4"
Tempered–1¼ 8" to1¼4"
Wired–1¼ 4" Laminated–1¼ 4"
S
ENSING
FIELD: Omni-directional
S
ENSOR
: Electret condenser (F .E.T .pre-amp)
O
PERATING
VOLTAGE: 10–16 VDC filtered and regulated
P
OWER
CONSUMPTION:30 ma @13.6VDC normal.
O
PERATINGTEMPERATURE:14° to120° F . (-10° to 49° C)
R
ELAY
ACTIVATIONTIME: 3 seconds
A
LARM
LED: Latch or auto reset
A
LARM RELAY :SPDT (Form-C)- contacts .1Amp @30VAC/24VDC
T
AMPER CIRCUIT:Normally closed switch-contacts 50 milliamp s
@ 30V AC/24VDC.
V
OLTAGE M
ONITOR: Low or novoltage causesalarm
activation. Lowvoltage <10VDC causes red LED to flash slowly
I
NSTALLATION:Hardwire 6wires including 2 for tamper
T esting: Follow instructions & test once a year
MOUNTING: Surface– screw andanchors included
C
OLOR
:White or Cabin Brown
SIZE:3" x 3" x 3¼4"
TRI-GARD550/552LSSignature Series
™
AUDIO GLASSBREAK DETECTOR
GLASS CHART
T
ABLE 1
DIP Switch 1
position
ON
OFF
12" x 12"
or larger
12" x 12"
or larger
6" x 10"
to
12" x 12"
6" x 10"
to
12" x 12"
Glass size
Plate Tempered Wired Laminated
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 inst allations should be checked with the 515 tester.
* Not for sound deadening drapes
* Tested w/ 3M sun film #SH2CLAR (3M is a trademark of 3M Company)
30' 25' 25' 25'
30' 25' n/a
n/a n/a
n/a
15'
15'
550LS
552LS
(12"x12" minimum size)
(12"x12"
min size)
®
,
MOUNTING LOCATIONS
The Tri-Gard can be mounted on any type of ceiling or wall.
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,television,etc.For
maximum performance install the detector in direct line of
sight to all glass that you are protecting.
WALL MOUNTING
Mount the 550/552LS on an opposite or adjacent wall from
the glass to be protected.
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 from the broken window the best mounting
location is on the opposite wall,assuming the wall is within
detection range.
NOTE:The unit should not be mounted on the same wall as
the glass to be protected.
CEILING MOUNTING
Mount the 550/552LS in any location on the ceiling which is
in direct line of sight of the glass to be protected.Mount the
550LS on any solid material.
550/552LS OPERATIONS AND WIRING
On power-up the microprocessor will momentarily turn on
each LED. If Signature Supervision is selected, the amber
LED will latch until reset (see signature supervision).
LEDs
• 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 FLASHES–slowly to indicate that the unit is in
test mode (see test mode).
•Amber 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).
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