Alarmtech CD 470 User manual

© 2020 Alarmtech www.alarmtech.se Alarmtech reserves the right to changes CD470 manual 2003en Page 1of 2
DETECTORS
Chock- and vibration detector
DATASHEET AND INSTALLATION MANUAL CD 470
DESCRIPTION
CD 470 offers reliable monitoring against attacks with me-
chanical tools. The CD 470 is a chock- and vibration detec-
tor with 3 separate detection channels: an integration
channel / saw channel for weak signals with long duration,
a counting channel that senses strong impact on the mon-
itored surface and an explosion channel which senses very
strong signals from e.g. an explosion.
CD 470 shares design with CD 475 but has built-in relays
for the alarm and tamper outputs. This allows the GD 470
to be connected directly to the alarm central unit, this
means that no analyser unit is necessary.
CD 470 polarity independent, just like CD 475.
FEATURES
Relay outputs for alarm and tamper
Two wire polarity independent for easy connection
3 separate detection channels
Cover radius up to 3m
Resistant to interference
Detailed sensitivity setting
Suitable for 24 hour monitoring
DAY and NIGHT control of LED
OPERATING PRINCIPLE
The CD 470 uses a piezoelectric sensor to monitor the vibration
signature of the mounting surface that occurs when it is crushed
or cut with tools. The signal has a special signature with a broad
spectrum and high amplitude that the electronics detects, then
opens the alarm relay and illuminates the LED. The CD 470 has a
built-in self-control and voltage monitoring. Fault is indicated by
a flashing LED (alarm relay remains closed). The indication is con-
trolled by a DAY and NIGHT function. With 8Vdc on the power
input, DAY mode is active and LED lights up at alarm and with
pulsating shine in case of failure. At 6Vdc, NIGHT mode is active
and LED is switched off in case of alarm or error.
Resetting the detector after alarm can be done in two different
ways:
Disconnect power to the detector
Switch from DAY to NIGHT mode
MOUNTING
1. Loosen the screw for the cover and lift it off.
2. Select the mounting location and mark the mounting holes
with the bottom part as a template.
3. Drill with a 2-2.5 mm drill for the two supplied mounting
screws.
NOTE! A clean and smooth mounting surface under the
detector provides maximum range.
CONNECTIONS
The detector has 6 screw terminals:
#
Function
1
DC Input voltage (-) or (+)
2
DC Input voltage (-) or (+)
3
Alarm output, relay (NC)
4
Alarm output, relay (C)
5
Tamper output, relay (NC)
6
Tamper output, relay (C)

© 2020 Alarmtech www.alarmtech.se Alarmtech reserves the right to changes CD470 manual 2003en Page 2of 2
DIP-SWITCH
The DIP switch with 6 switches is used to program the functions
of the detector.
DIP Sensitivity (1 = lowest sensitivity, 8 = highest)
1
2
3
4
5
6
7
8
1
OFF
OFF
OFF
OFF
ON
ON
ON
ON
2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
DIP Counting Channel, Number of hits
3
6
4
OFF
ON
DIP Saw/Integration Channel
Integration Channel OFF
Integration Channel ON
5
OFF
ON
DIP Autoreset of alarm (after 4 s)
Autoreset OFF
Autoreset ON
6
OFF
ON
DETECTION RADIUS
The approximate range of different materials is given in
the table below. Note, however, that the stated numbers
only serve as guide values and are strongly dependent on
joints etc. The actual range must be determined in
practical tests.
Material
Wood/Glass/
Plywood
Brick*/
Plastering*
Steel/Concrete *
Radius
r = 2 m
r = 1 m
r =3 m
COMMISSIONING AND ADJUSTMENT
NOTE! For detector to show short blink, following procedure
must be done within 5 minutes after detector is powered on.
Commissioning and adjustment is very simple. Check that the
Autoreset is active (DIP 6 ON), the LED will then indicate when
the detector is alarmed, and after about 4 seconds, the alarm
goes out while the alarm relay closes. The counting channel
causes each received pulse to be displayed with a short flash on
the LED until the number of pulses set is reached (3 or 6), then
alarm is indicated. The alarm is indicated by a steady light as long
as the alarm relay is open.
1. Set the DIP switch to medium sensitivity, 6 hits, active saw
channel and auto reset. This is done by setting DIP 1=OFF
and DIP 2-6=ON.
2. Tap next to the detector and check that each tap is regis-
tered and that the alarm relay opens after 6 pulses.
3. Now tap relatively strongly with eg. the back of a screw-
driver on the most remote point to be protected.
4. If the pulses are not detected (short flash on the LED),
incrementally increase the sensitivity with DIP 1-3 as shown
in the table until the LED shows the received pulse.
5. If the diode instead shows alarm directly (steady light),
reduce the sensitivity incrementally with DIP 1-3 according
to the table until the LED shows the received pulse.
6. Check and adjust all connections. Finally, check that both
the alarm output and the tamper switch are received cor-
rectly at the control panel.
A fairly common mistake is to set higher sensitivity than
required, which results in false alarms. We therefore rec-
ommend to not connect the detector in live operation un-
til after a few weeks so that the setting has been verified.
* When mounting on brick / plaster / concrete, the
mounting plate MP550 must be used for correct
operation.
TECHNICAL DATA
Detection radius
Up to 3m
Input voltage
8 –15 VDC (DAY mode), 6 VDC (NIGHT mode)
Max. ripple
0.2 Vpp at 12 V
Current consumption (typical) quiescent
8.0 mA (at 12 V)
Current consumption (typical) alarm
7.1 mA (at 12 V)
Alarm output
Relay (Max 50V / 120 mA), R < 30 Ω
Alarm indication
LED, DAY/NIGHT controlled
DAY and NIGHT control
DAY≥8 V, NIGHT=6 V input voltage
Alarm time
4s (when Auto Reset) or latching
Alarm reset
Input voltage below 1 V
Tamper output
Relay (Max 50V / 120 mA), R < 30 Ω
Low voltage alarm or fault in electronics
<5V indicated by flashing LED
Environmental class (EN50130-5:2011)
II
Operating temperature range
-40°C till +55°C
Operating humidity
max. 95% RH
Housing
White ABS plastic, IP 42
Size [H x D x W]
20 x 23 x 80 mm
Approvals
EN 50131-2-8 Grade 2, SBSC Klass 2, VdS Klasse B
ORDERING INFORMATION
CD 470
E nr. 63 098 91
Mounting plate MP 550
E nr. 63 098 93