GAI-Tronics 7085-005-UL, 7085-005-EX User Manual

Pub. 42004-697L2B

GAI-TRONICS® CORPORATION

A HUBBELL COMPANY

Model 7085-005-UL and 7085-005-EX

SmartSeries Multi- Party Hazardous Ar ea

Amplifi er Enclosures with RTU Cont rol

Confidentiality Notice

This manual is pr ovided s olely as a n op erat ional, installation, and maintenance guide and contains sens itive
bus ines s and t echnic al infor ma tion tha t is confident ial and prop rieta ry to GAI - Tr onic s. GAI- Tr onic s retains
all intellectual prop erty a nd other r ights in or to the information contained herein, and s uch infor ma tion may
only be used in connection with t he op erat ion of your GAI-T ronics produ c t or s ystem. This manu al may not
be disclos ed in any form, in whole or in pa rt, direct ly or indirectly, t o any third party.

General Information

The Model 7085-005-UL and 7085-005-EX Multi-Party Remote Terminal Unit (RTU) Amplifier
Enclosures are components of the 700 Series Page/Party< system. T h ese encl osures are configured f o r
multi-p arty system, which can accommodat e conversa tions on up to five part y lines simulta neou sly. They
are constructed of ca st a l uminum and a re extremely weather proof and cor rosion- resis tant. These
enclosures are equipp ed with termina l str ips for connecting s ystem cable. T he Model 709-901 SmartSeries
Amplifier mates directly with this enclosure.

®

When connected to a SmartSeries system, t he s tat ion opera tes as a standard mult i- party Page/P arty
device. In addition, it supports supervised input circuits and a relay output (supervision optional). The
following configurations a re possible:

• 1 supervised input circuit and 1 supervised relay output (factory setting)

• 2 supervised input circuits and no relay output

• 2 su p ervised inpu t circ uits and 1 non-s upervised relay ou tput

N

OTE: The relay output circuit is intended to be used with GAI-Tronics-approved equipment. The circuit

may not support supervision of equipment that is not approved by GAI-Tronics.

Models 7085-005-UL and 7085-005-EX differ in design by their conduit or c able entries. The Model
7085-005-UL Enclosure contains NPT threads and the Model 7085-005-EX Enclosure contains metric
threads.

GAI-Tronics Corporation P.O. Box 1060, Reading, PA 19607-1060 USA

610-777-1374  800-492-1212  Fax : [phone]

ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS

V

Pub. 42004-697L2B

Model 7085-005-UL/ E X SmartSeri es Multi-Par ty Haz. Area Amp. Encl osure wit h RTU Page

Installation

These enclos u res must be inst alled by trained, qualif ied and
competent personnel. I nsta llation mus t comply with s tat e and
national regulations, as well as safety practices for this type of
equipment.

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CAUTION

Do not install this e quipment in
hazardous areas other than those indicated on the approval
listing in the Specifications section of this manual. Such
installation may cause a safety hazard and consequent injury
or property damage.

The mounti ng loc ation must be flat and pr ovide p roper
clearance, rigidity and strength to support the enclosure and all
contained devices. The enclosu res a re equipp ed with fac tory­installed hinges. The enclosures shou ld be mounted with hinges
on the left.

WARNING

Do not mount the enclosu re with hinges
on the top or bottom side.

Securely fasten the enclos ure to the mounting location, using
1/ 2-inch diameter steel mounting bolts a nd wash ers , or washer
head bolts.

WARNING

Do not disconnect equipment while energized.
Insure proper grounding to protective earthing.

Figure 1. The Model 7085-005-UL/EX

Inspect and c lean the machined flange fla me joint sur f aces of both the cover and b ox. Surfaces must be
smooth, f ree of nicks, scrat c hes , dirt or any foreign p article build-up that wou ld prevent a pr oper seal.
Surfa c es must seat fully aga inst ea c h other to provide a prop er explos ion- proof joint. C l ean surfaces by
wiping with a clean lint-free cloth.

Apply a light coat of Killa rk “LUBG” lub rica nt to flange surfac es and close t he cover. Ins tall and tight en
all cover bolts to 30 f t.-lb s. M ake cert ain no cover bolts are omitt ed. Use only thos e b olts supplied with
the enclos ure.

When installing an add-on st ation, consu lt the appr opriate sys tem layout diagrams. These figu res, when
used in conju nction with t he s tat ion insta llation information and ca b l e layout gu ide, should p rovide all t he
information necessary t o insta ll additional Pa ge/ Party< stat ions.

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Enclos ure Placement

All GAI-Tronics Pa ge/ Party® units are wired in parallel. G ood system layout design minimizes the cable
required for ea ch insta llation. GAI-Tronics multi-condu c tor cable, des igned especially for this applic ation,
is rec ommended. For the numb er, s iz e, and color-coding of c onductors refer to the approp riate system
connection diagra ms .

®

System layout and power c able length are ver y important when inst alling Page/Party

equipment.
Although it vari es f or differ ent systems, the general guideline is t hat t he t otal p ower cable length should not
exceed one mile (5280 feet) for 120 V ac systems. The total cable length is the most important
consideration while cable length between the sta tions is generally not a fa c tor.

Hardware Configuration

External

The multi-party enclosur es each contain a handset with an approved gland, push- to-page operator , a party
line selector switch, and ap plicable app roval labeling. The handset rests on a c radle, whic h has a magnetic
reed switc h loc ated behind it to signa l an off-hook c ondition. The enclosure itself has 12 cover mount ing
bolts loc ated a round t he p erimeter of the enclosure, a nd a set of aluminum hinges located on the left side.
See Figu re 2.

GAI-T R ONICS COR P ORATIO N

P.O. BOX 1060 READING, PA 19607

NO USER SERVICEABLE PARTS INSIDE.

REFER SERVI CING TO QUAL IFIED PERSONNE L ONLY.

GAI-TRONI CS SERVICE CEN TERS

Outside USA: 1-610-777-1374In USA: 1-800-492-1212

Figure 2. Model 7085-005-UL/EX Outline Drawing

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Internal

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The multi- party enclosures contain three ter mina l blocks, an int erior mount ing plat e, an a mp lif ier br idging
plate, a nd a connect or for the mating M odel 709-901 Amplifier. The amplifier bridging plate is hinged on
one side and attached on the opposite side with two #10-32 screws. For system cable installation, the
screws to t his pla te must be removed and the b ridging plate swu ng open 90º. Upon installation of the
wiring cable, the amplifier bridging plate can be rotated closed and reattached with the two #10-32 screws.
This plat e will then serve as a pr otection for the amplifier and t he switches fr om the s ystem cable when the
unit is complet ely closed. Refer to Figure 3.

The RTU cont rol adds an a dditional 8-point terminal block, f use holder wit h insta lled f u se, a nd RTU
contr ol PCBA. These it ems are mounted t o the interior mounting p late a nd b ackside of the amplifier
bridging plate. Care s hould be taken to keep wir es out from behind the RTU PCBA so as not to dama ge
the components when t he b ridging plate is s wung closed. The RTU PCBA is connect ed t o the amplifier
with a 10-point ribbon cable. Refer to Figure 3.

The part y line s elect or swit c h c an be disconnected from the a mplifier bridging pla te by means of the 12-p in
connector. Upon insta llation of system cable, after the amplif ier br idging plat e has been r eattached, p l ug
the 12- pin connector bac k into its receptacle.

N

OTE: The front door ca n be swung a ppr oximately 120º before the plug must be disconnected.

Figure 3. Model 7085-005-UL/EX Amplifier Enclosures interior view

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Mounting

NOTE: The mounting surface must be able to support the weight of the aluminum enclosure. See the
Specif ic ation s ection for the weights a nd dimensions of the unit.

The enclosure comes s tandard with mounting feet c apable of being rota ted 90º . This allows f or top and
bottom mounting feet or side-to-side mounting f eet . The enclosure ships wit h the mounting feet in the top­to-bottom configu ration, for ease of insta llation. Refer to Figu re 4 for both sets of dimensions .

Figure 4. Model 7085-005-UL/EX Enclosure Mounting Details

The en clos ure must be s ecurely fastened with 1/2-inch d i ameter s teel moun ting bolt s loc ated o n all four
mounting feet. St ainless steel hardware is r ecommended in outdoor ap plications.

N

OTE: Refer to the K illark Insta llation, Operation, and M aintenanc e D ata Sheet enclosed with t he u nit for

additi onal information.

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