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5.4 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.
5.5 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 ‘open = activate’ or ‘closed = activate’. We recommend using the default
setting ‘open circuit (n/c in menu) = activation’ 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, ie ‘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.
5.6 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
.
5.7 REBOOT
The Smoke Screen can be rebooted without removing mains and battery power by selecting “Yes” in the Reboot
menu item that is available when the Smoke Screen is in Service Mode. Any settings entered in the menu will be
retained. This facility can be used to clear any critical faults.
5.8 FLUID MANAGEMENT
The S35 accommodates a 500ml consumable containing ‘Smoke Fluid’. The Fluid Level is monitored using an
on-board timer that measures the amount of fluid used by timing consumption when the Smoke Screen is
activated. Each time the consumable clamp is unfastened, and the fluid consumable is replaced the micro switch
is cycled which resets the internal timer that the Smoke Screen use to calculate the volume of fluid remaining in
the fluid bag. See the section on “Programming” to set the volume of fluid available a new fluid consumable.
The
Smoke Screen will not produce fog when there is an “Empty Fluid” indication
