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TRI-GARD 510 AUDIO DETECTOR

The Tri-Gard is a patented passive sonic glassbreak detector designed
to detect the sound signals produced by the breaking of most types of
uncovered glass, including 1/8" and 1/4" plate glass and 1/4" wired
glass. 

The Tri-Gard features two individual stages of frequency filtering, pro-
viding excellent rejection of audio signals out of the glassbreak spec-
trum, and patented signal processing which analyzes all three  sound
dimensions- “Amplitude” (loudness),  “Frequency” (tone, pitch) and
the “Rate of Change” of the amplitude and/or frequency.

The maximum range is up to 60 feet from the unit in an open area -
hard acoustical environment. The IEI-510 is self adjusting to compen-
sate for background noise and/or rising audio signals.

The TRI-GARD utilizes 3 LED'S to provide a constant visual readout.
The green LED indicates power on normal status. The amber LED
shows  a reading of both amplitude and frequency. The red LED shows
an alarm condition. The red LED can either automatically reset or can
latch-in requiring the unit to be reset by power interruption. The unit
will still detect with the LED on.

TRI-GARD 510 FEATURES
• Patented state of the art three dimensional signal processing
• Automatic tracking level
• Analysis of the three sound dimensions: amplitude, frequency and 

rate of rise or rate of change

• 60 ' maximum range
• 3 LED indicators
• Contemporary styling

SPECIFICATIONS

S

ENSING

: Audio/air, open space (enclosed area)

R

ANGE

: 60 ft. radius

F

REQUENCY

S

PECTRUM

: 4.1K

HZ

- 16K

HZ

A

MPLITUDE

S

PECTRUM

: 74

DB

@ 5K

HZ

/ C 

SCALE

ADJUSTABLE

(

MAX

)

S

ENSING

F

IELD

: Omni-directional

S

ENSOR

: Electret condenser (F.E.T. pre-amp)

D

ISCRIMINATION

: A

MPLITUDE

/

FREQUENCY

/

DISTANCE

/

RATE OF RISE

S

ET

U

P

A

DJUSTMENTS

: S

ENSITIVITY

MEMORY LATCH RED

LED

I

NDICATORS

: G

REEN

LED-

S

TATUS NORMAL

R

ED

LED-

A

LARM CONDITION

A

MBER

LED- A

MPLITUDE AND FREQUENCY

O

PERATING

V

OLTAGE

:  10.5–16 VDC filtered and regulated

V

OLTAGE

M

ONITOR

: L

OW OR NO VOLTAGE CAUSES ALARM ACTIVATION

V

OLTAGE

S

UPERVISION

: A

LARM RELAY

P

OWER

C

ONSUMPTION

: 44 ma @ 13.6 VDC normal, 50 ma  max

O

PERATING

T

EMPERATURE

: 14° to 120° F.    (-10° to 49° C)

R

ELAY

A

CTIVATION

T

IME

: 3 seconds

A

LARM

LED: Latch or auto reset

A

LARM

R

ELAY

: SPDT (Form-C)- contacts 1Amp @30 VAC/24 VDC

T

AMPER

C

IRCUIT

: Normally closed switch-contacts .1 Amp 

@ 30 VAC/24 VDC.

I

NSTALLATION

: Hardwire 6 wires including 2 for tamper   M

OUNTING

:

Surface– screw and anchors included

C

OLOR

: White or Cabin Brown

S

IZE

: 3" x 3" x .79"

W

EIGHT

: 2.2 

OUNCES

M

OUNTING

S

CREW

:  #4 

X

3/4" 

SLOTTED

P

ILOT

H

OLE

- S

CREW

: 1/16"

P

ILOT

H

OLE

- A

NCHOR

: 3/16"

TRI-GARD

510

A U D I O   G L A S S B R E A K   D E T E C T O R

INSTRUCTION BULLETIN

510  # 615-1000 

510

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