» Brako Galss Break Sesnor Brako Installation Manual

» Brako Galss Break Sesnor Brako Installation Manual
1
Brako
Digital
Glass Break Detector
2
The Brako is the ultimate answer false alarms
free sensor. It catches sounds of breaking
glass, which produce two sequential signals of
different frequencies. The exclusive Brako
Phased Frequency detection detects both
shock signal and the strong signal of glass
breakage creating a “false alarm free” glass
break detector.
The Brako does not need to be on a window,
thus providing volume protection and allowing
protection of several windows with one
detector.
P/N 4720
FEATURES
• Shock and/or breakage selectable
• Analyzes two frequencies
• Unique signal analysis ignores
environmental disturbances
• Memory LED
• ASIC based digital electronics
• Sensitivity adjustment
• New ultra compact design
• Flush mount installation (option)
• Outstanding detection range and reliability
4
5
Installation Instructions
MOUNTING LOCATION (See FIG. 1)
• 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.
MOUNTING THE DETECTOR (FIG. 2)
1. Use the small screwdriver (supplied) to
push the prong on top of the case to open
it.
2. Snap out the detector PCB.
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. Reinstall the detector PCB.
7. Close the case.
• JP1 - Shock / Glass selector for detection
calibration.
• JP2 – Memory LED control.
• JP3 - Reduces the sensitivity of sound
detection by 50%.
7
8
TERMINAL BLOCK CONNECTIONS
Terminal 1 - Marked - (-12V)
Connect to negative 12V.
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 24 hour 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.
Connect to the control at zone input.
FIG. 1 - MOUNTING
The detector offers flexible installation. It can
be either ceiling mounted or wall mounted as
shown in the above figure.
6
FIG. 2 - THE BACK COVER
A
JUMPERS (FIG. 4)
Note: For symmetrical cover of the detection
area it is recommended to place the
detector on the ceiling.
FIG. 3 - TERMINAL BLOCK
3
B
A
9
THE CALIBRATION TOOL (*)
TESTING THE DETECTOR
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 the proper operation of the Brako
without actually breaking the glass.
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).
Carefully strike the glass with your hand or a
padded object. If the Green LED does not
light, adjust as sensitivity (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.
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 Av-Gad simulator
10
11
12
GLASS BREAK ADJUSTMENT
SHOCK ADJUSTMENT
THE MEMORY FUNCTION
To
adjust
the
glass
break
setting
(increase/decrease sensitivity) place the
jumper JP1 according to the GLASS marking
(connecting the middle pin with the upper pin)
- (See Fig. 4) Green LED is constantly ON.
Now you can adjust the sensitivity by rotating
the upper potentiometer (marked as GLASS
CAL. - see Fig. 4).
Operate the Sound Break Simulator and
rotate the potentiometer clock-wise to
increase sensitivity, and opposite to decrease
sensitivity until the Yellow and Red LED’s are
illuminating for each glass break sound.
Remember that rotating the potentiometer will
have no effect upon the settings if the middle
pin of JP1 is not connected to the left pin.
To
adjust
the
shock
setting
(increase/decrease sensitivity) place the
jumper JP1 according the SHOCK marking
(connecting the middle pin with the lower pin)
- (See Fig. 4) Yellow LED is constantly ON.
Now you can adjust the sensitivity by rotating
the lower potentiometer (marked as SHOCK
CAL. - see Fig. 4).
Hit gently on the protected glass and rotate
the potentiometer clock-wise to increase
sensitivity, and opposite to decrease
sensitivity until the Green and Red LED’s are
illuminating for each hit.
Remember that rotating the potentiometer will
have no effect upon the settings if the middle
pin of JP1 is not connected to the right pin.
The alarm memory function allows the
identification of an alerting detector out of
multiple detectors connected to one (or the
same) zone of the control panel.
To enable this function, set ON jumper JP2
(connected on both pins - See Fig. 4).
Note
• When the jumper is set for GLASS
adjustment, only the high frequency sound
of breaking glass is detected.
Note
• When the jumper is set for SHOCK
adjustment, only the low frequency of the
shock signal prior to glass breakage is
detected.
SENSITIVITY SETTING
13
14
16
TECHNICAL SPECIFICATIONS
Power Input
Current Consumption
9 - 16 Vdc
Standby: 22mA at 12Vdc
Active: 25mA at 12Vdc
Detection Range
10m (33ft), Adjustable
Coverage
Omni Dirctional
Dimensions
70 x 40 x 16 mm
Mounting
Ceiling or Wall
Alarm Output Relay
N.C. 50mA/24Vdc with
27 Ohm in line resistor
Tamper Switch
N.C. 50mA 24Vdc with
10 Ohm in line resistor
Operating Temperature - 20°C to 50°C
- (-4°F to 122°F)
Operating Humidity
95% max relative humidity
non condensing
Storage Temperature -30°C to 70°C
(-22°F to 158°F)
Sensor
Condenser Microphone
RFI Protection
30V/m 10 -1000MHz
EMI Protection
50,000V electrical
Interference from lightning
AV-GAD reserves the rights to change specifications
without prior notice
LED
RED
LED
YELOW
For some installations you may find that Brako
is too sensitive. Use jumper JP3 to decrease
sensitivity to 50%.
WIRE SIZE REQUIREMENTS
•
Make sure to disconnect Jumper JP1.
When the jumper is disconnected, the
detector will detect both shock and sound
frequencies.
• To ensure maximum protection against
false alarms, activate any device in the
area, which might automatically cycle
pumps, generators, heating/air conditioning
units, etc. If the cycling devices trigger an
alarm, mount the unit in a different location.
To reset the memory function, switch OFF
(disconnect) the voltage wire (+12V) from the
Terminal Block for minimum 15 seconds then
switch on (reconnect) voltage wire (+12V).
(The control panel key ON/OFF can be used
for this application if it controls the voltage
(+12V).
JP3 OPEN - 100% sensitivity
JP3 CONNECTED - 50% sensitivity
15
FIG. 4 - PCB Layout
FINAL TESTING
In case of an alarm, the Red LED will stay
ON until memory function is reset.
LED
GREEN
MIC
Use #22 AWG (0.5mm) diameter or larger
wires. Use the following table to determine
required wire gauge (diameter) and length of
wire between the detector and the control
panel.
Wire Length
m 200 300 400 800
Wire Diameter mm .5
.75
1.0 1.5
Wire Length
ft 800 1200 2000 3400
Wire Gauge
#
22
20
18
16
17
AV-GAD LIMITED WARRANTY
(Av-Gad) warrants this product to be free from defects in materials and
workmanship under normal use and service for a period of one year from the
last day of the week and year whose numbers are printed on the printed
circuit board inside this product.
Av-Gad’s obligation is limited to repairing or replacing this product, at its
option, free of charge for materials or labor, if it is proved to be defective in
materials or workmanship under normal use and service. Av-Gad shall have
no obligation under this Limited Warranty or otherwise if the product is altered
or improperly repaired or serviced by anyone other than Av-Gad.
There are no warranties, expressed or implied, of merchantability or fitness
for a particular purpose or otherwise, which extend beyond the description on
the face hereof. In no case shall Av-Gad be liable to anyone for any
consequential or incidental damages for breach of this or any other warranty,
expressed or implied, or upon any other basis of liability whatsoever, even if
the loss or damage is caused by Av-Gad’s own negligence or fault.
Av-Gad does not represent that this product can not be compromised or
circumvented; that this product will prevent any person injury or property loss
or damage by burglary, robbery, fire or otherwise; or that this product will in
all cases provide adequate warning or protection. Purchaser understands
that a properly installed and maintained product can only reduce the risk of
burglary, robbery or other events occurring without providing an alarm, but it
is not insurance or a guarantee that such will not occur or that there will be no
personal injury or property loss or damage as a result. Consequently, Av-Gad
shall have no liability for any personal injury; property damage or any other
loss based on claim that this product failed to give any warning. However, if
Av-Gad is held liable, whether directly or indirectly, for any loss or damage
arising under this limited warranty or otherwise, regardless of cause or origin,
Av-Gad’s maximum liability shall not in any case exceed the purchase price
of this product, which shall be the complete and exclusive remedy against
Av-Gad.
18
Av-Gad Systems Ltd.
ISRAEL:
84, Ben-Zvi Road, Tel-Aviv 68104
Tel: 972-3-681 67 67
Fax: 972-3-683 55 05
E-mail: support@av-gad.com
www.av-gad.com
These instructions supersede all previous
issues prior to June 2002.
Item 4720 version 01, June 2002
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising