GAI-Tronics Page/Party 670-301 Краткое руководство по эксплуатации - Страница 5

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670-301 P

MODEL

AGE

ARTY

Mounting

Note: The mounting surface must be able to support 55 lb. (25 kg). The explosion-proof enclosure

is very heavy. Handle carefully to avoid damage to the unit and personnel injury.

1. Remove the cast aluminum front panel. Allow it to hang from the rear of the enclosure by means of

two retaining straps during installation. The straps serve as personnel safety feature and as a

safeguard designed to ensure the flame path opening is not nicked, dented or otherwise damaged

while mounting the enclosure.

2. To maintain the explosion-proof integrity of the enclosure, all mounting hardware is located in

non-intrusive mounting holes under the front panel. The suggested mounting height of the station is

54 inches (137 cm) to the centerline of the enclosure. Use standard 1/2-inch socket head cap screws

or M12 bolts to secure the enclosure to a flat mounting surface.

3. After the enclosure is securely mounted, remove the plug-in amplifier as follows:

•

Remove the 4 screws that secure the amplifier to the standoffs, and retain.

•

Pull the amplifier straight toward you to disengage the 16-pin connector from the enclosure.

•

Set the amplifier aside in a safe place while completing the installation.

4. Make up cable core ends as required for connection to the terminal blocks in the enclosure base.

5. Dismantle the outer parts of the 25 mm Ex 'd' cable gland(s) for the system cable and 16 mm Ex 'd'

cable gland for the speaker cable and thread them onto the cable(s) in the correct order. These glands

are customer supplied.

6. Feed the cable end(s) into the enclosure through the gland body or bodies and reassemble the outer

gland parts as directed by the manufacturer. Check that the slack in the cable inside the enclosure is

adequate but not excessive before tightening of the gland assembly.

7. Connect cable cores to terminals following the wire colors as illustrated in Figure 6 or Figure 7. The

wire colors correspond to GAI-Tronics 60071 and 60072 Series System Cable and 60070 Speaker

Cable. Connect the wires carefully and completely to the terminal block. An improper termination

may result in diminished station performance.

Note: Determine if acoustical feedback is likely to be a problem, and adjust the speaker orientation, if

necessary. If feedback occurs between the speaker associated with a 670 Speaker Amplifier and a

handset on a nearby station, the 670 Speaker Amplifier can be remote muted from the handset station.

To accomplish this, follow these steps:

•

Move the lugged violet wire on the 670 Speaker Amplifier to terminal 7 on TB2.

•

Connect terminal 7 from the handset station (mute) to terminal 7 of the 670 Speaker Amplifier. This

jumpering between stations can be accomplished with the spare orange conductor in the GAI-Tronics

system cable.

8. Install the amplifier by aligning the 16-pin connector to the enclosure socket and pushing straight in.

Install the 4 screws retained previously.

9. Inspect the gasket and machined rim of both the cover and the enclosure for nicks, scratches, or other

damage that could compromise the integrity of the flame path seal. If damaged, the cover may have

to be replaced.

10. Secure the front cover to the cast aluminum enclosure using the bolts provided. Tighten the bolts

alternately with bolts that are diagonally opposite to ensure that the cover is evenly sealed. Tighten

bolts to 20 ft.-lbs.(27 kilogram-meters) minimum.

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