Bentel Security ECHO User manual

SELF-POWERED SIREN
for external use
ECHO
V4.2 BUFQ 2.1 231298
GENERAL NOTES
qSelf-powered siren with flasher.
qStrong polycarbonate box designed to with-
stand the most adverse weather conditions.
qExtra protection given by tropicalized metal
inner cover.
qContinuous tone with frequency modulation
sound emission.
qHigh performance exponential horn.
qProtected against wire cutting and tamper.
qAlarm timeout adjustment.
qTest circuit for flasher inhibition on battery
low.
qEasy installation.
qDrill pattern.
qMeets requirements of CEI 79-2/2nd Ed. 1993
normative: performance grade II.
(DAT IMQ n. U0264).
FUNCTIONS
When in alarm status the ECHO siren emits a
continuous high modulated frequency sound.
The modulation extremes (1300 and 2000 Hz)
have been selected to generate a high note,
which is particulary bothersome to the hearing,
and a low note that can be heard at a consid-
erable distance.
If alarm status continues for over 7 minutes
(the maximum alarm time), the acoustic signal
is automatically inhibited, whilst the flasher re-
mains active. Removal or breakage of the
flasher automatically signals tamper status to
internal circuit of the siren. The flasher is inhib-
ited if the battery is not fully charged, in this
case the remaining power is utilized to sound
the siren.
The siren starts when its power voltage fails on
the +N terminal or when -A terminal is short-
circuited to ground. The alarm ceases when
the previous conditions are restored (voltage
on +N and -A terminal disconnected). The si-
ren is also protected against tamper by two mi-
croswitches (fig. 4):
Øthe first (MS1) is on-board, and is activated
when the metal inner cover is removed;
Øthe second (MS2) is fixed on the wall with the
siren, its lever is held in position by the srew
used for closing the policarbonate box.
Therefore, the tamper circuit is activated
when the siren is pulled off the wall or the box
is removed.
These two microswitches send tamper signal-
ing to the internal circuit of the siren, or to the
control panel, by means of the S and S2 termi-
nals.
TECHNICAL FEATURES
Power supply rated volt-
age (terminal +N) 13.8 V
±0.2 V
Current on + N max. 0.6 A
Appliance rated voltage 12 V
Alarm current 1.4 A
(max. 2.8 A)
Battery required 6.5 Ah
(65x149x93 mm)
Fundamental frequence 1475 Hz
Sound pressure at 3 m 103 dB(A)
Case protection grade IP34
Temperature range -25 ÷+55 °C
Size (L x H x W) 180 x 270 x 90 mm
Weight (with battery) 5 Kg

CONNECTIONS
The control panel alarm command may be as-
signed to the +N terminal or -A terminal. Use of
the +N terminal is advised, as it is equipped with
a wire cutting protection. The +N termianl of the
BENTEL control panels is directly compatible
with the +N terminal of the siren. In fact, when in
standby status, the +N terminal of BENTEL con-
trol panels have a 13.8 V tension, which fails
when the control panel generates alarm status. If
such a terminal is not available on the control
panel in use, use the free contacts of the alarm
relay, as illustrated in figure 1A. If -A is used as
an alarm command, it must be connected to the
terminal on the control panel which closes to
earth in the event of alarm, as illustrated in figure
1B.
In each case, between the +N terminal board
and the siren earth a 13.8 V tension
(min. 0.6 A) is required, this maintains the
standby battery level. Other connections on
the terminal board, depend on the selected
function mode for siren tamper.
AUTOMATIC METHOD (FIG. 3A)
This is the functional method set by the manufac-
turer (jumper J2 and J3 connected).The mi-
croswitches are connected to the siren logic that,
in the event of tamper generate an alarm, inde-
pendent of the status of the +N and -A terminals.
The alarm ceases 40 seconds after the closure
of both microswitches or at the most, after 7 min-
utes (maximum alarm-time). With this function
mode, the control panel does not acknowledge
tamper status, therefore, there is no signalling on
the terminal and no activation of other connected
alarm devices (such as the telephone dialler,
supplementary siren etc.).
NORMAL METHOD 1 (FIG. 3B)
If control panel acknowledgement of tamper status
is required, removal of the J3 jumper is necessary
as well as the closure of the control panel tamper
line on the siren S terminal. In fact, this is closed to
ground, when in standby status, whilst is discon-
nected when one of the microswitches is open (fig.
2A). In this case, the maximum alarm time is 7 min-
utes (max. alarm-time) or less (timeout set on the
control panel).
NORMAL METHOD 2 (FIG. 3C)
If control panel acknowledgement of tamper
status is required, but the control panel tamper
line closes on a device that is not the siren
(e.g. Bentel Electronic key), it is necessary to
disconnect jumpers J2 and J3, present on the
board. In this way, the tamper microswitches
are no longer connected to the siren ground
(fig. 2B), therefore, connect terminal S and S2
to the control panel tamper line. The alarm
timeout is that set on the control panel (maxi-
mum 7 minutes).
Fig. 1 - Activation modes. Fig. 2 - Antitamper microswitches diagrams.

Fig. 3 - Tamper terminal connection according to the selected function mode.
TERMINAL BOARD DESCRIPTION
AP Exponential horn terminals are connected to these terminal board.
Power negative terminal and internal circuit ground.
+N Power positive terminal. A tension of 13.8 V is applied to this terminal which keeps the siren battery charged. If for any reason (wire cutting or alarm) this tension fails
the siren is automatically activated.
-A This terminal may be used as an alternative to the +N terminal for alarm activation:
the siren is activated if the -A is grounded.
S - S2
In the normal functional method the tamper microswitches MS1 and MS2, are
placed in series between these terminals (see fig. 2B). For the automatic functional
method the S2 terminal remains disconnected, whilst the S terminal is grounded
until one of the two tamper microswitches opens (see fig. 2A).

INSTALLATION
It is necessary to mount the ECHO siren on an
even wall, free from hollows or excessive
bumps which might jeopadize the proper func-
tioning of the tamper device.
To facilitate system installation, a drill pattern
is included in the package, as are also the
adequate screws for the correct mounting.
There are five holes on the fitting pattern F1,
F2, F3 and F4 corresponding to the fitting
points on the back of the siren, F5 is for the S
bracket (see fig. 4).
Be careful not to over tighten this last screw as
this may damage the tongues A(see fig. 4).
Once the siren is mounted, it is possible to
carry out the connections on the Mterminal
board M. The battery should then be posi-
tioned on the battery support MP (fig. 4), and
then connected: the flasher will then start to
function. Fit the inner cover and container and
wait for the flasher to stop (approx. 45 secs).
At this point the siren is enabled and ready for
testing.
PROBLEMS
If the flasher does not function when the bat-
tery is connected, it may indicate that the bat-
tery is low. To check the battery status, close
the cover, wait approximately 45 seconds and
provoke an alarm. If the siren starts, even at
low acoustic level but the flasher does not
function, the battery is low: it can then be re-
charged in several hours by means of the +N
terminal.
If when the battery is connected, the covers
are closed, and the 45 seconds have passed,
the flasher continues flashing, check that both
microswitches are closed properly, and the
adequate tension is present (13.8 V on +N, -A
disconnected) on the alarm terminal board.
IDENTIFICATION OF THE PARTS
F1-F2-F3-F4 Fixing holes.
F5 Supplementary hole.
FS Braket fixing hole.
PC Cable passage.
LFlashing light.
MP Battery support.
SMicroswitch braket.
ATongues.
CExponential horn.
MS1-MS2 Antitamper microswitches.
MTerminal board.
CMS MS2 connection.
J2-J3 Jumpers.
CL Flashing light connection.
MB Battery terminal board.
+The technical specifications of the prod-
uct are subject to change without notice.
Fig. 4 - Identification of the parts.