Klaxon Official Manual for Nexus 120 and Sonos Sounder Beacon Installation

Nexus 120 AC Sounder & Sounder-Beacon

Installation Instructions

From controller To the next unit

Beacon L

Sounder L

Common N

2nd Stage

3rd Stage

S 3 S 2 0	N	110 V	2 3 0 V	2 3 0 V	110 V
		~	~	~	~
S 1
S 2
-
+
				1st Unit

S 3 S 2 0	N	110 V	2 3 0 V	2 3 0 V	110 V
		~	~	~	~
S 1
S 2
-
+
			2nd Unit

EN Installation Manual

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 connectionsto 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.

Controls

a.Tone Selection

The first and second stage alarm tones are independently set using 6-way dipswitches S1 and S2 respectively. The required settings are shown in the table overleaf. The third stage alarm tone is pre-set to complement the selected first stage tone as shown in the table.

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	110/230V 50/60Hz
Current	Sounder - 200mA max.
	Beacon (where fitted) - 70mA
Peak Sound Level	111-120 dBA at 1m*
Number of Tones	64
Frequency Range	340 - 2900 Hz*
Volume Control	20 dBA typical

Wiring

a. Power: Note that the sounder and beacon have separate power terminals, marked as follows:

Device

Common ( eutral)

110V

230V

Sounder

N

110V

230V

V

~

V

~

110

230

Beacon (Where fitted)

N

~

~

b. Remote Tone Switching (If required): Externally link control terminals as shown below.

Alarm Stage	Example Signal	Activation
Stage 1	‘Alert’	No Connection (Default)
Stage 2	‘Evacuate’	Link Terminal	S2	to terminal
Stage 3	‘All Clear’	Link Terminal	S3	to terminal

Remote Tone Switching Provision for 3 volt-free contact

activated alarm stages

Operating Temperature - 25°C to +55°C

Casing High Impact Polycarbonate/ABS

IP RatingIP66 with suitable cable glands

Synchronisation Automatic with Klaxon Nexus and Sonos Sounders

*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/.