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GBD-II
SHOCK & BREAKAGE
GLASS BREAK DETECTOR
ELECTRONIC ENGINEERING LTD.
INSTALLATION INSTRUCTIONS
P/N 7101108
Ver. 2.0 A.Y.
The GBD-II is the ultimate answer for all those
tired of false alarms. It listens for sounds of
breaking glass, which produce two sequential
signals of different frequencies. The unique
phased frequency detection circuitry of this
detector allows detection of both shock signal
and the strong signal of glass breakage
creating a “false alarm free” glass break
detector.
The detector does not need to be attached to
the window, providing volume protection, and
allowing you to protect several windows with
one detector.
FEATURES
•
Phased Frequency Detection system,
detects low frequency impact sound as well
as the glass breakage sound thereby
eliminating false alarms.
•
Separate sound & shock adjustment.
•
Memory function.
•
Volume protection.
•
Ceiling or wall mounting.
FIG. 1 - MOUNTING
The detector offers flexible installation. It can
be Either ceiling mounted or wall mounted as
shown in the figure above.
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MOUNTING LOCATION ( See FIG. 1 )
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If heavy blinds or curtains cover the glass,
you must locate the detector behind the
blinds on the window frame or above it,
otherwise the blinds might block the sound.
Make sure to test the unit thoroughly for
proper detection.
•
Install the detector in a direct line of sight
with the protected glass.
•
Do not mount the unit in front of air ducts,
or close to bells (measuring 0.5m (or
larger) in diameter).
•
For a few protected glasses in one room,
locate the detector in optimal distance from
them to achieve the best detection.
Note:
for symmetrical cover of the detection
area it is recommended to place the
detector on the ceiling.
MOUNTING THE DETECTOR ( FIG. 2 )
1.
Use a small screwdriver to push the prong
on top of the case and open the case.
2.
There is no need to remove the PCB
(Printed Circuit Board) from the case.
3.
Insert the wires through the wiring hole (B).
4.
Use the mounting holes (A) to mount the
detector.
5.
Connect the wires to the terminal.(See
Terminal Connections)
6.
Close the case.
JUMPERS ( FIG. 4 )
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JP1
- Shock / Glass selector for detection
calibration.
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JP2
- Reduces the sensitivity of sound
detection by 50%.
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JP3
- Latch. See The Memory Function.
FIG. 2 - THE BACK COVER
A
A
B
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FIG. 3 - TERMINAL BLOCK
TERMINAL BLOCK CONNECTIONS
Terminal 1 - Marked - ( -12V )
Connect to the negative Voltage output or
ground of the control panel.
Terminal 2 - Marked + ( +12V )
Connect to the positive Voltage output of 9-16
Vdc
source (usually from the alarm control unit)
Terminals 3 & 4 - Marked TAMPER
If a Tamper function is required connect these
terminals to a 24hour normally closed protective
zone in the control unit. If the front cover of the
detector is opened, an immediate alarm signal will
be sent to the control unit.
Terminals 5 & 6 - Marked RELAY
These are the output relay contacts of the detector.
THE CALIBRATION TOOL ( * )
The Simulator/Tester & Calibration tool is
especially designed to check phased
frequency glass break detectors.
Since the detector will react to the high
frequency breakage sound only when it comes
sequentially after a low frequency SHOCK
sound, this device is necessary to check for
proper operation of the GBD-II without actually
breaking the glass.
Manual mode
:
In this mode, the Simulator will emit the high
frequency sound of breaking glass for "Glass"
adjustment.
Automatic mode
:
In order to simulate breaking glass, place the
Simulator on the surface of the protected
glass, and gently hit it with your hand. The
Simulator will then emit the sound of breaking
glass. Be careful not to break the glass while
testing the detector.
∗
It is recommended to use
simulator
CROW
P/N: 0040011
TESTING THE DETECTOR
First use the Simulator in manual mode to
simulate the noise of glass breaking. Check
that the yellow LED is ON. If it does not light,
the sensitivity calibration is necessary (See
Sound Calibration).
Now use your hand or a padded object to
carefully strike the glass. If the green LED
does not light, adjust as necessary (See
Shock Calibration).
Now use the Simulator in automatic mode and
check that the red LED lights. If the red LED is
ON, your detector is working properly.
Otherwise try adjusting the sound and shock
setting until the red LED lights.
