Concept Smoke Screen Sentinel S35v6, Руководство пользователя

Страница: 10 / 31

9
Function
3
3.1 CONTROLLING THE SMOKE
Alarm Panel activation
There are 3 sets of input connections on the Smoke Screen (Set, Alarm and Hold-off) that should be connected to
clean contacts. For the Smoke Screen to produce ‘smoke’ all 3 sets of connections must be ‘open circuit’ (this can
be changed to ‘closed = activate’ – see the “Inverting Trigger Mode” Section but note that ‘open = activate’ is
used in this manual). We recommend using the default setting ‘open circuit = activation’ to ensure that the Smoke
Screen will activate in case the alarm cables are tampered from the outside. If one set of connections is ‘closed
circuit’ then the Smoke Screen is prevented from producing smoke. Hence the production of smoke is controlled
using one or a combination of the following:
•
Set – a normally closed relay connected across the alarm panel ‘Set’ output connections, which is
open when the alarm panel is ‘Set’ and closed when the panel is ‘Unset’.
•
Alarm – a normally closed relay connected across the alarm panel ‘Intruder’ output connections, which
is open when the alarm panel or controlling device is in ‘Alarm’.
•
Hold-off – usually a PIR / movement sensor normally closed output, which opens when the sensor
detects movement, connected to the Smoke Screen “Hold-off” normally closed connections.
•
Additional hold-off – any form of normally closed relay / micro switch can be connected to the “Hold-
off” connections. Where fitted in parallel as an addition to a PIR both devices must be ‘open’ to
produce ‘smoke’.
Panic activation
The Smoke Screen has a Panic input that should be connected to a clean contact going ‘open circuit’ to activate
(this can be changed to ‘closed = activate’ – see “Invert Trigger Mode” in the Programming section).
It is recommended that the Panic is activated by a momentary, non-latching, button to avoid the situation where a
Panic activation is not reset before a standard activation is required.
NB: The Panic trigger mode is delivered set to n/o and the Panic Smoke Time is set to 0 seconds to prevent
inadvertent activation if the facility is not used.
WARNINGS:
•
Service Mode should be selected to on if the Panic trigger mode is changed when the Smoke
Screen is at operating temperature.
•
Always restore a Panic input after it has been used. Failure to do so will result in the Smoke Screen
not subsequently activating on an Alarm Panel (Set, Alarm and Hold-off) demand.
Smoke and Panic Time
The Smoke Screen should be set to produce fog for a time (Smoke Time) that is suitable for the volume of the
location to be protected. As a guide, an S55 set to 60 seconds Smoke Time will reduce the visibility to 1 metre*
in a 175 m
3 volume room. The Smoke Time is changed in the settings; see Section 5.9.
(* as defined by the test requirements of EN50131-8)