Alarmtech GD 370 User guide

GD 370_1551en
©2015 Alarmtech
Med reservation för tryckfel och eventuella framtida produktmodifieringar
Detectors Glass break detector
DESCRIPTION
GD 370 is an universal passive glass break detector glued on the
glass surface. The detector has a relay output that opens during
alarm and can be connected directly to the alarm loop. It is
specifically designed for surveillance of shop-windows, glass
sliding doors, single-glazed windows and other vulnerable glass
surfaces in public offices and private homes.
FEATURES
Detects glass break of float and laminated glass
Large coverage area
Very resistant to disturbances on the glass
Built-in self-test module
No sensitivity adjustment
Ideal for 24-hour loop perimeter protection
Low current consumption
Build in LED memory function
Completely sealed plastic casing
OPERATING PRINCIPLE
GD 370 is equipped with a piezoelectric sensor that detects
mechanical waves propagating in the glass pane. During glass
breakage, a very short vibration pulse with high amplitude and
very high frequency contents is generated and propagates with
high speed in the glass. This pulse triggers the detector,
activating an alarm.
GD 370 is equipped with an additional piezoelectric crystal
used for self-tests of the detector. The self-test is carried out
after power on and can be triggered remotely by changing the
state of the D/N line from DAY to NIGHT. If the detector fails to
pass the self-test procedure, FAULT signal is generated
CIRCUIT DIAGRAM
Cabling description
(-) - black
(+) - red
C/NC –white
T/T - white
INSTALLATION
Please note! Correct gluing of the detector is vital for its
function. Follow the installation instructions carefully.
Before installation, test the detector using GVT-500 or GVT-
5000 tester. Use the 12 V output of the GVT-5000 tester to
supply the detector.
Please note! Use the recommended UV-radiation proof
adhesive kit (Glue kit GDK 100) for safe installation.
Select the installation spot. Distance between the detector and
the frame must not be lower than 20 mm.
Clean the glass surface with the cleaning solvent (bottle no. 1).
Let the surface dry.
Apply the sticker template for precise installation.
Clean the detector’s bottom surface with the brown graining
pad to remove any grease.
Installer manual GD 370

GD 370_1551en
©2015 Alarmtech
Med reservation för tryckfel och eventuella framtida produktmodifieringar
Apply activator (bottle no. 2) on the bottom surface of the
detector and on the installation spot. The sticker template (if
used) will prevent staining the glass outside the installation area.
Let the surfaces dry for 1-2 minutes.
Place a small drop of glue (bottle no. 3) in the centre of the
detector’s bottom surface and spread it evenly in a thin layer
with enclosed triangular spatula. A thin layer is very important for
a good and fast bond.
Press and hold the detector against the glass surface on the
selected spot until you feel it adheres. (10sec).
Let the glue harden for another 5 minutes before you start
working with the cables.
Remove the surplus glue from the side of the detector using the
triangular spatula. Remove the sticker template (if used).
TECHNICAL DATA
Type of protected glass
float
laminated P1
Standard glass thickness
4 mm
4 mm + 4 mm
Detection radius
2 m
2 m
Supply voltage
8 –15 VDC Max.
Voltage ripple
2 Vpp at 12 V Current
Consumption quiescent
7 mA
Consumption in alarm state
9 mA
Alarm output
relay
Contact rating
max. 100 mA, max. 50 VDC/peak AC, Rs ≤30 Ω
Alarm indication
LED
Alarm hold time
Latching
Alarm reset
Power down
Cable
3m ф3,7 mm, 6x0,14 mm2
Environmental class (EN50130-5)
IIIA
Operating temperature range
-25°C to +55°C
Operating humidity
max. 95% RH Housing
Material
Plastic ABS
Dimensions:
Ф35x15,5 mm
Grade (EN50131-2-7-2:2012)
3