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Fault and Tamper Monitoring
The siren continuously monitors for fault
and tamper conditions and reports any
found to the control unit/expander via the
radio link. The following are monitored:
Tamper switch
– The siren's tamper
switch is continuously monitored. The
siren self-activates on a tamper.
Battery voltage
– The siren monitors
the battery voltage under load
conditions and reports a fault if the
batteries have approximately one
month of life remaining.
Jamming
- If a link is fitted across Jam
Det, the siren monitors for attempted
jamming of the radio signal to the
control unit/expander. See "PCB
Jumper Details".
Summary of Strobe Operation
The strobe operates if the siren self-
activates or if the control unit sends a
command to activate the strobe.
After 15 minutes of the siren being
activated, the strobe flashes at a slower
rate until the alarm is reset.
In i-on/Menvier systems, the strobe can
also be configured using the Set Conf link
and the
Strobe on Set/Unset
options (see
"
PCB Jumper Details"
).
Maintenance
NOTE:
Enter the installer code at a keypad
before opening the lid of the siren. This
should prevent the sounder from activating.
However, be prepared in the event that
the sounder does activate
– make sure
that any very loud noise produced
cannot result in a fall.
During routine maintenance, test the siren
for correct operation, check the tamper
switch and for any signs of water or insect
ingress and clean as necessary. Replace
the batteries every two years or as advised
by the control panel (see below). See
Specifications
for details of the replacement
battery type needed.
NOTE:
Batteries and the unit itself must be
disposed of in accordance with WEEE
regulations and any other local or national
regulations.
NOTE:
After removing the existing
batteries, wait 30 seconds before fitting the
new batteries.
To replace the batteries:
1. Enter the installer code at a keypad.
2. Open the hinged cover that gives
access to the lid-retaining screw (see
Figure 2), loosen the screw and open
the lid.
3. Remove the link/terminal cover (see
Figure 2) by pushing the two retaining
tabs to the side of the unit while lifting
the cover.
4. Remove the battery connectors from
the PCB, and remove the batteries.
5. After 30 seconds, insert the new
batteries and connect to the PCB (see
Figure 1).
6. Re-fit the link/terminal cover, close the
lid, tighten the lid-retaining screw and
close the screw cover.
7. Test the system.
Specifications
Type of Warning Device:
External, self-
powered
Supply Voltage:
6-7.5V dc; battery low
warning 4.5V
Current Consumption:
0.25mA quiescent
current including comfort LEDs. 225mA
in-alarm current
Sound Output:
100 dB(A)
Radio Frequency:
868.6625MHz narrowband
Radio Power:
10mW
Range:
Maximum of 500m in free space
IP Rating:
Internal components IP65; Case
IP4X
Strobe Frequency:
Double-flash @ approx 1Hz
Case Material:
Polycarbonate
Содержание SDR-REXT
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