Concept Smoke Screen Sentinel S100, Инструкция по установке и эксплуатации

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6.4 SERVICE MODE
Setting dip switch No 4 (see diagram under ‘Circuit Board Layout’) to ‘On’ puts the Smoke Screen into
‘Service Mode’. This setting prevents the Smoke Screen from making smoke whilst work is conducted with
power applied. To highlight that the Smoke Screen is in ‘Service Mode’ the Tamper output is put into an
alarm state.
FAILURE TO DISABLE SERVICE MODE WHEN NO LONGER REQUIRED WILL PREVENT THE
SMOKE SCREEN OPERATING.
6.5 INVERTING TRIGGERS
The Smoke Screen triggers, Set, Alarm, Hold-off and Panic should be connected to clean contacts changing
state in alarm. The triggers can be set to normally closed (N/C) ‘open = activate’ or normally open (N/O)
‘closed = activate’. We recommend using the default setting ‘N/C’ to ensure that the Smoke Screen will
activate in case the alarm cables are tampered from the outside.
The Smoke Screen is delivered with the Set, Alarm and Hold-off triggers set to n/c, i.e., ‘open = activate’.
The Panic trigger is set to n/o to avoid an inadvertent activation if the facility is not used, and the Panic
input is left open.
6.6 TAMPER
There are internal tamper circuits on all the Smoke Screen covers and an external tamper input on PCB
terminal block ‘B’. A ‘Tamper Status’ output is provided on PCB terminal block ‘F’. To prevent unwanted
tamper signals the external tamper input can be disabled if not in use by selecting dip switch 2 to ‘On’,
which bridges the input pins on the PCB.
NB: A tamper ‘open’ state provides only an indication of the event; it does not automatically activate the
Smoke Screen or prevent it from activation.
NB: Tamper output will also be active when ‘Service Mode’ is enabled.
6.7 REBOOT
When the Smoke Screen is in Service Mode the Reboot menu item becomes available. The Smoke Screen
can be rebooted without removing mains and battery power by selecting ‘Yes’. Any settings entered in the
menu will be retained. This facility can be used to clear any critical faults.