GAI-Tronics 13310-311 Betriebs- und Wartungsanleitung - Seite 4

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The Equipment must not be installed with the horn facing

upwards of horizontal.

To maintain the ingress protection rating and mode of

protection, the cable entries must be fitted with suitably

rated cable entry and/or blanking devices during installation.

If conduit is used for installation, seal conduit within 18

inches from the enclosure.

If entries are fitted with adaptors they must be suitably rated

for the application. Fitting of blanking elements into

adaptors is not permitted.

If a high IP (Ingress Protection) rating is required then a

suitable sealing washer or O-ring must be fitted under any

cable gland or blanking device with metric threads.

Only the explosionproof cover is to be used for access to

the enclosure for installation, service and maintenance.

Connections are to be made into the terminal blocks using

solid or stranded wire, sizes 0.5–2.5mm

Wire insulation needs to be stripped 6–7mm. Wires may be

fitted securely with crimped ferrules. Terminal screws need

to be tightened down with a tightening torque of 0.4 Nm / 3.5

Lb-in.

Earthing connections should be made to the Internal Earth

terminal in the explosionproof chamber or the external

earth stud.

Check that the O-ring seal is in place before replacing the

explosionproof cover.

4.2 Mounting

Figure 1

. Fixing locations

13310-3xx Loudspeakers should only be installed by trained

competent personnel.

The Loudspeakers may be secured to any flat surface using

the three 7mm fixing holes. The enclosure provides IP66

protection and is suitable for indoor and outdoor use

providing it is positioned so that water cannot collect in the

horn, and the cable entry is sealed.

4.3 Installation Procedure

a. Secure the Loudspeaker to a flat surface via the three

7mm fixing holes in the mounting bracket.

b. Remove the explosionproof cover of the loudspeaker by

unscrewing it, taking care not to damage the threads in

the process. (Refer to Section 5.)

c. Fit an M20x1.5 suitably certified cable gland or ½" NPT

conduit into the corresponding entry in the enclosure and

connect the field wiring to the appropriate loudspeaker

terminals as shown in Section 6 / Figure 3 (70V Line In)

or Section 7 / Figure 4 (Low Impedance) of this manual.

The power supply terminals on the low impedance units

are duplicated so that units may be connected in parallel.

An end-of-line monitoring resistor may be fitted to either

type of unit. Additional entries which are not used must

always be fitted with suitably certified blanking elements.

__________________________________________________________________________________________________________________

GAI-Tronics 3030 Kutztown Rd. Reading PA 19605 USA

Document No. 42004-502A

/ AWG 20–12.

[email protected]

09-29-15

www.gai-tronics.com

Sheet 4 of 5

d. Replace the explosionproof cover of the loudspeaker,

taking care not to damage the explosionproof threads and

checking that the O-ring seal is in place. Tighten the cover

fully.

4.4 Hornless Variants

The 13310-3xx Loudspeaker is also available as a variant

with no horn fitted in the factory. The Horn threaded nose

portion has a fitment thread of 1-3/8" – 18 UNF (to BS1580

or ANSI B1.1). The customer is responsible for sourcing

and correctly fitting a suitable horn that meets all of the

relevant safety requirements.

Access to the Explosionproof Enclosure

In order to connect the electrical supply cables to the

loudspeaker, it is necessary to remove the explosionproof

cover to gain access to the explosionproof chamber. This

can be achieved by unscrewing the explosionproof cover,

taking extreme care not to damage the explosionproof

threads in the process.

Blanking element

(Appropriate

cable glands to

be customer

supplied)

Figure 2. Accessing the Explosionproof Enclosure

On completion of the cable wiring installation the explosionproof

threads should be inspected to ensure that they are clean and

that they have not been damaged during installation. Also check

that the O-ring seal is in place on the thread diameter in contact

with the flat face of the explosionproof cover. When replacing

the explosionproof cover ensure that it is tightened fully.

70V Line In Wiring

Internal Earth

Terminal

Figure 3. Line In Terminals

The cable connections are made into the terminal blocks on

the PCB assembly located in the explosionproof enclosure.

Pub. 42004-502A

External Earth

Assembly

Flameproof

cover

Tel: 800-492-1212

Fax: 610-796-5954