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Installation Manual
EN
Installation
IMPORTANT
a. The unit should be fitted with a fused spur incorporating an all pole
disconnection device providing 3mm contact separation in all poles.
Ensure fuse, cable size and gland type are rated sufficiently for the
total load on the sounder circuit.
b. Isolate the unit from the electricity supply before removing the cover.
Only suitably qualified personnel should gain access to the unit to
perform adjustments to the tone or volume. WARNING: no user
serviceable parts contained within the unit.
c. The sounder is installed by first mounting the base unit and making the
external wring connections to the base. The head unit then automatically
connects when it is attached to the base.
d. The sounder head is separated from the base by unlocking the four
¼-turn fasteners in the corners of the sounder. (Recommended
screwdriver: Philips No. 2, min 100mm long).
e. Note that the head only fits onto the base one way around. If a beacon
is fitted, care should be taken when mounting the base to ensure that
the beacon will be positioned in the desired orientation after the
sounder is attached.
Wiring
Note that the sounder and beacon have separate power terminals, marked
as follows:
Device
Common (Neutral)
Sounder
Beacon (Where fitted)
Each terminal is duplicated to enable simple 'daisy-chain' connection of
multiple units.
Installation Instructions
N
110V
230V
110V
~
N
110V
230V
~
~
Nexus 105 AC Sounder & Sounder-Beacon
Controls
a. Tone Selection
The alarm tones are set using 6-way dipswitches S1. The required
settings are shown in the table overleaf.
b. Volume Control
The sound output of the unit can be reduced by up to 20dBA by
adjusting the potentiometer.
Technical Specification:
Supply Voltage Range
Current
Peak Sound Level
Number of Tones
Frequency Range
Volume Control
Operating Temperature
Casing
IP Rating
Synchronisation
230V
~
*depends on selected tone
The European directive "Waste Electrical and Electronic Equipment" (WEEE)
aims to minimise the impact of electrical and electronic equipment waste on
the environment and human health. To conform with this directive, electrical
equipment marked with this symbol must not be disposed of in European public
disposal systems. European users of electrical equipment must now return
end-of-life equipment for disposal. Further information can be found on the
following website: http://www.recyclethis.info/.
110/230V 50/60Hz
Sounder - 40mA max
Beacon (where fitted) - 70mA
102 - 113 dBA at 1m*
64
340 - 2900 Hz*
20 dBA typical
- 25°C to +55°C
High Impact Polycarbonate/ABS
IP66 with suitable cable glands
Automatic with Klaxon Nexus and
Sonos Sounders
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