42004-161D
Pub. 42004-161D
GAI-TRONICS® CORPORATION
A HUB BEL L C OMP ANY
Model 670-001
Explosion-proof Speaker Station
Confidentiality Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains
sensitive business and technical information that is confidential and proprietary to GAI-Tronics.
GAI-Tronics retains all intellectual property and other rights in or to the information contained herein,
and such information may only be used in connection with the operation of your GAI-Tronics product or
system. This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any
third party.
General Information
The Model 670-001 Explosion-proof Speaker Station provides safe and clear communications in
hazardous areas, even in high-noise situations. This model is NRTL certified for use in the US and
Canada for the following areas: Class I, Div. 1, Groups C and D; Class II, Div. 1, Groups E, F, and G; and
Class III, Div. 1.
The Model 670-001 station enclosure is fabricated from cast aluminum and is suitable for indoor use. If
the station is to be mounted outdoors, it should be housed in a GAI-Tronics Model 10444-003
Weatherproof Non-metallic Enclosure. This enclosure is rated NEMA 4X, and can be purchased
separately.
This installation manual provides instructions on both the placement and mounting of the stations. Refer
to Pub. 42004-185 and 42004-237 (Canada), which show the conduit installation and station wiring
details necessary to maintain the explosion-proof integrity of the station.
WARNING
Explosion Hazard – Do not connect or disconnect equipment unless power
has been switched off or the area is known to be non-hazardous.
Installation
Whether installing an entire system or only an add-on station, consult the system layout diagrams at the
end of this manual. These figures, used in conjunction with the station installation information and the
cable layout guide, should provide all the information necessary to install the Page/Party® stations. These
figures do not show an explosion-proof station; however, the basic points of the system layout and design
still apply.
NOTE
A separate power feed is recommended for Page/Party® stations in Div. 1 areas. With
a separate power feed, the Page/Party® stations can be shut off for service or maintenance without
disrupting the power supply to the other equipment in the Div. 1 area.
GAI-Tronics Corporation P.O. Box 1060, Reading, PA 19607-1060 USA
610-777-1374 „ 800-492-1212 „ Fax: 610-796-5954
VISIT WWW .GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
Model 670-001 Explosion-proof Speaker Station
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Enclosure Placement
All GAI-Tronics Page/Party® units are wired in parallel. Good system layout design minimizes the cable
required for each installation. GAI-Tronics multi-conductor cable, designed especially for this
application, is recommended. The number, size, and color-coding of conductors are listed in the
accompanying system connection diagrams.
System layout and power cable length are important considerations when installing Page/Party®
equipment. The rules vary for different systems, but generally, the total power cable length should not
exceed one mile (5280 feet) for 115 V ac systems. The length of cable between the stations is not a
factor; the total cable length is the most important consideration.
Mounting
Refer to Pub. 42004-185 and 42004-237 (Canada), shipped with this unit. The suggested mounting
height for all station enclosures is 54 inches (137 cm) up to the centerline of the enclosure.
To maintain the explosion-proof integrity of these stations, all mounting hardware is located outside the
enclosure. The unit should be mounted using the two mounting straps that extend past the four corners of
the enclosure. See Figure 1.
Use the standard 3/8-inch bolts to secure the enclosure to the mounting surface. Secure the bottom two
bolts first, then the top bolts. The mounting strap design allows the station to be removed from its
mounting surface by removing only two of the bolts.
NOTE
If this unit is to be used outdoors, it should be mounted inside a GAI-Tronics Model
10444-003 Weatherproof Non-metallic Enclosure, which is equipped with a front door. This enclosure
has four mounting feet in the four corners and is suitable for mounting to many surfaces. It can be
purchased separately.
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Model 670-001 Explosion-proof Speaker Station
Figure 1. Model 670-001 Mounting Details
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Model 670-001 Explosion-proof Speaker Station
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Conduit Installation
Refer to Pub. 42004-185 or 42004-237 (Canada), which is shipped with this unit. These publications
detail how to maintain the explosion-proof integrity of the station.
NOTE
External conduits in areas with Class I, Group C and D areas must have gas seals
not more than 18 inches (457 mm) from the station enclosure. External conduits in Class II and
Class III areas must have seals if the conduit system is not dust-tight.
Wiring
After the station has been mounted, use a 7/16-inch wrench to open the front panel of the station to access
the Termination PCBA. Refer to Pub. 42004-185 or 42004-237 (Canada) for wiring details.
Feed the wiring through the conduit and into the enclosure. Follow the wire colors carefully—these
colors correspond to GAI-Tronics 60029 or 60038 Series cable. The wires must be spade-lugged and
connected carefully and completely to the terminal block. An improper termination may result in
diminished station performance.
Before closing the station, plug the power interconnect cable from the front of the enclosure into the
connector on the power supply card in the rear enclosure.
NOTE
All the bolts must be installed to maintain the integrity of the explosion-proof
construction.
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Model 670-001 Explosion-proof Speaker Station
Speaker Muting Information
This station is equipped with a muting feature that is used if the station is located near other
handset/speaker stations. This feature prevents acoustic feedback between stations during paging by
muting the station’s associated speaker. This station is shipped from the factory with the mute feature
enabled.
To disable the muting feature, remove jumper W6 located on the 10489-001 Termination PCBA. The
chart below describes how the muting function operates when specific combinations of wire jumpers W3,
W4, W5, and W6 are installed on the Termination PCBA.
W3
W4
W5
W6
O
X
X
X
AUX/PAGE inputs to the amplifier are muted during station page (as
shipped from GAI-Tronics—see the note).
O
X
X
O
AUX/PAGE inputs to the amplifier are not muted during a station page.
O
X
O
X
PAGE input is muted only during a station page.
X
X
O
X
PAGE input is muted during a station page or by contact closure between
the Mute A and B inputs.
X
O
X
X
PAGE/AUX inputs are muted during a station page or by contact closure
between the Mute A and B inputs.
X
O
O
O
PAGE/AUX inputs are not muted. Isolated normally open relay contact
output between the Mute A and B terminals is closed during station
pages.
X = Installed
Description of Operation
O = Not Installed.
Mutual Muting
NOTE: Jumpers W4, W5, and W6 must be installed.
Stations that are located closely together may require mutual muting of the page amplifiers. To
accomplish mutual muting between stations, connect the orange (spare) wire in the GAI-Tronics station
cable to TB2-A on each of the Div. 1 stations that require muting. All the mutually muted stations are
muted when any connected station is paging.
Mutual muting can be accomplished between the Div. 1 stations and Div. 2 enclosures using most
GAI-Tronics 600 or 700 Series enclosures by connecting the orange (spare) wire between TB2-11(A) on
the Div. 1 station and TB1-7 on the Div. 2 enclosure:
Div. 1 Stations
(TB2-A)
Div. 2 Enclosures (TB1-7)
670-001
702A
733-001
780-001
732-101
7335-001
7805-001
7325-101
758-001
703A
Consult GAI-Tronics for any enclosures not listed.
NOTE: The auxiliary speaker amplifier input is a balanced 10 kilohm audio input.
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Model 670-001 Explosion-proof Speaker Station
Specifications
Power input ....................................................90–140 V ac; 120 V ac nominal, 50–60 Hz; 0.5A maximum
Dimensions .............................................................13.1 H × 7.9 W × 5.6 D inches (332 × 200 × 143 mm)
Temperature range............................................................................ -22 °F to +158 °F (-30 °C to +70 °C)
Shipping weight ............................................................................................................... 27 lbs. (12.2 kg)
Speaker Amplifier
Output.................................................................... @ 120 V ac: 12 watt minimum into 8- or 16-ohm load
Voltage gain ....................................................................................................20 dB minimum, adjustable
Frequency response ......................................................................... 250–4,000 Hz., +0/-3 dB ref @ 1 kHz
Distortion .........................................................................................1% maximum THD @ 1 kHz/12 watt
Input impedance ...................................................................................... 50,000 ohm, minimum @ 1 kHz
Controls ........................................................................................................................... Speaker volume
Enclosure
Material/finish................................................................................................... No. 359.2 aluminum alloy
Mounting ...................................................................Wall or column, four 3/8-inch slotted mounting feet
Connections .............................................................................Internal screw-type barrier terminal blocks
Conduit entries ..................................................................................................Standard top: ¾-inch NPT
Standard bottom: 1.5-inches NPT
Optional bottom: 2-inch NPT
Approvals
NRTL certified for use in US and Canada for the following locations: ............Class I, Div. 1, Groups C, D
Class II, Div. 1, Groups E, F, G
Class III, Div. 1
Replacement Parts
Part No.
Description
12604-001
Fuse, Slow, 0.7 amp (10 pack)
61514-004
Harness Assembly
12542-001
Replacement Front Cover Bolts (14 pack)
69488-105
PCBA, Speaker Amplifier
69489-001
PCBA, Termination
12571-001
Maintenance Cover Kit
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Warranty
Equipment.
GAI-Tronics warrants for a period of one (1) year from the date of shipment, that any
GAI-Tronics equipment supplied hereunder shall be free of defects in material and workmanship, shall
comply with the then-current product specifications and product literature, and if applicable, shall be fit
for the purpose specified in the agreed-upon quotation or proposal document. If (a) Seller’s goods prove
to be defective in workmanship and/or material under normal and proper usage, or unfit for the purpose
specified and agreed upon, and (b) Buyer’s claim is made within the warranty period set forth above,
Buyer may return such goods to GAI-Tronics’ nearest depot repair facility, freight prepaid, at which time
they will be repaired or replaced, at Seller’s option, without charge to Buyer. Repair or replacement shall
be Buyer’s sole and exclusive remedy. The warranty period on any repaired or replacement equipment
shall be the greater of the ninety (90) day repair warranty or one (1) year from the date the original
equipment was shipped. In no event shall GAI-Tronics warranty obligations with respect to equipment
exceed 100% of the total cost of the equipment supplied hereunder. Buyer may also be entitled to the
manufacturer’s warranty on any third-party goods supplied by GAI-Tronics hereunder. The applicability
of any such third-party warranty will be determined by GAI-Tronics.
Services.
Any services GAI-Tronics provides hereunder, whether directly or through subcontractors,
shall be performed in accordance with the standard of care with which such services are normally
provided in the industry. If the services fail to meet the applicable industry standard, GAI-Tronics will
re-perform such services at no cost to buyer to correct said deficiency to Company's satisfaction provided
any and all issues are identified prior to the demobilization of the Contractor’s personnel from the work
site. Re-performance of services shall be Buyer’s sole and exclusive remedy, and in no event shall GAITronics warranty obligations with respect to services exceed 100% of the total cost of the services
provided hereunder.
Warranty Periods.
Every claim by Buyer alleging a defect in the goods and/or services provided
hereunder shall be deemed waived unless such claim is made in writing within the applicable warranty
periods as set forth above. Provided, however, that if the defect complained of is latent and not
discoverable within the above warranty periods, every claim arising on account of such latent defect shall
be deemed waived unless it is made in writing within a reasonable time after such latent defect is or
should have been discovered by Buyer.
Limitations / Exclusions.
The warranties herein shall not apply to, and GAI-Tronics shall not be
responsible for, any damage to the goods or failure of the services supplied hereunder, to the extent
caused by Buyer’s neglect, failure to follow operational and maintenance procedures provided with the
equipment, or the use of technicians not specifically authorized by GAI-Tronics to maintain or service the
equipment. THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE IN LIEU OF AND
EXCLUDE ALL OTHER WARRANTIES AND REMEDIES, WHETHER EXPRESS OR IMPLIED BY
OPERATION OF LAW OR OTHERWISE, INCLUDING ANY WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Return Policy
If the equipment requires service, contact your Regional Service Center for a return authorization number
(RA#). Equipment should be shipped prepaid to GAI-Tronics with a return authorization number and a
purchase order number. If the equipment is under warranty, repairs or a replacement will be made in
accordance with the warranty policy set forth above. Please include a written explanation of all defects to
assist our technicians in their troubleshooting efforts.
Call 800-492-1212 (inside the USA) or 610-777-1374 (outside the USA) for help identifying the
Regional Service Center closest to you.
(Rev. 10/06)
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