audible alarm but be continuously reminded of the alarm
condition by the beacon. If the alarm is not cleared within
the silence time, the sounder will be reactivated. If the alarm
is cleared during the silence time the beacon will stop
flashing, but the beacon and the sounder will both be re-
activated if the alarm reoccurs. See table 1 on page 5 of
these instructions for full DIP switch settings.
The silence accept push-button may be any mechanically
operated switch, providing it has an IP protection suitable for
the environmental conditions to which it is subjected, within
the hazardous area, see section 4.5.
9. ACCESSORIES
9.1 Beacon to sounder joining kit
Comprises an M20 plastic conduit coupler and gasket
enabling the beacon to be mounted onto a IS-A105N
sounder. This kit is supplied free of charge when a beacon
and sounder are purchased at the same time.
Switch settings for operation with
IS-A105N Sounder
Note when the beacon is operated on its own,
without a sounder connected, all of the DIP
switches should be set to OFF position.
10. MAINTENANCE
The beacon should be regularly inspected to ensure that it
has not been damaged. Frequency of inspection depends
upon environmental conditions, but initially we recommend
that this should be done annually.
No attempt should be made to repair a faulty IS-L101L
beacon. Suspect beacons must be returned to European
Safety Systems Ltd. or to your local agent for repair
.
11. GUARANTEE
Beacons which fail within the guarantee period should be
returned to European Safety Systems Ltd. or our local agent.
It is helpful if a brief description of the fault symptoms is
provided.
12. CUSTOMER COMMENTS
European Safety Systems Ltd. are always pleased to receive
comments from customers about our products and services.
All communications are acknowledged and whenever
possible, suggestions are implemented.
SW6
PS
SW5
OS
SW4
T4
SW3
T3
SW2
T2
SW1
T1
Timer
Periodic sound interval when silenced,
when SW6 is ON for (1 second every)
OFF
OFF
OFF
OFF
forever
10 secs
OFF
OFF
OFF
ON
5 secs
5 secs
OFF
OFF
ON
OFF
10 secs
5 secs
OFF
OFF
ON
ON
20 secs
5 secs
OFF
ON
OFF
OFF
30 secs
5 secs
OFF
ON
OFF
ON
45 secs
10 secs
OFF
ON
ON
OFF
1 min
10 secs
OFF
ON
ON
ON
2 mins
10 secs
ON
OFF
OFF
OFF
3 mins
30 secs
ON
OFF
OFF
ON
5 mins
30 secs
ON
OFF
ON
OFF
10 mins
1 min
ON
OFF
ON
ON
20 mins
1 min
ON
ON
OFF
OFF
30 mins
1 min
ON
ON
OFF
ON
45 mins
5 mins
ON
ON
ON
OFF
1 hour
5 mins
ON
ON
ON
ON
2 hours
5 mins
OFF
Hold off mode
– Accept Switch silences sounder for selected time.
ON
One-shot mode
— Sounder silences after either selected time,
or Accept Switch is pressed, whichever occurs first.
The sounder is then only restored after the input power supply
is removed and restored.
OFF
No periodic sound while silenced
ON
Sound periodically while silenced
