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Model 670-801-EX and 670-801-UL
SmartSeries Amplifiers
for CENELEC Zone 1 and UL Div. 1
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.
Introduction
The assembly described in this manual is an explosion-proof enclosure and intelligent speaker amplifier
designed to be installed in hazardous areas where combustible gases exist or may exist. The extra thick
cast aluminum enclosure, while not gas tight, is designed to withstand repeated internal explosions
without expelling gases hot enough to ignite the external atmosphere. This is accomplished through the
use of a precision-machined enclosure opening flame path that cools the exiting gases to a temperature
below the flash point of the external, explosive atmosphere.
How to Use the Assembly/Model
Application
The hazardous area SmartSeries amplifier is designed to provide clear communications even in high noise
areas where explosive atmospheres exist or may exist.
The Model 670-801-EX is BASEEFA approved to CENELEC Standards Ex dib for Zone 1, Group IIC
T5.
The Model 670-801-UL is approved by Underwriters Laboratories for:
•
Class 1, Div. 1, Groups C and D
•
Class II, Div. 1, Groups E, F, and G
•
Class III, Div. 1
The intelligent SmartSeries amplifier is designed for use on the GAI-Tronics single party or multi-party
system cable. It includes micro-controllers that are programmed to:
•
Receive and send data messages on the system cable
•
Measure ambient noise and adjust speaker level
•
Monitor and control optional external equipment
GAI-Tronics Corporation P.O. Box 1060, Reading, PA 19607-1060 USA
610-777-1374
V
ISIT WWW
G A I - T R O N I C S ® C O R P O R A T I O N
A H U B B E L L C O M P A N Y
800-492-1212
.
-
.
GAI
TRONICS
COM FOR PRODUCT LITERATURE AND MANUALS
Fax: 610-796-5954
Pub. 42004-615L2
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Table of Contents
Related Manuals for GAI-Tronics GAI-TRONICS 670-801-EX SmartSeries
Summary of Contents for GAI-Tronics GAI-TRONICS 670-801-EX SmartSeries
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Page 1: Confidentiality Notice
Pub. 42004-615L2 G A I - T R O N I C S ® C O R P O R A T I O N A H U B B E L L C O M P A N Y Model 670-801-EX and 670-801-UL SmartSeries Amplifiers for CENELEC Zone 1 and UL Div. -
Page 2: Hardware Configuration
Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 2 of 15 Hardware Configuration The exterior view of the cast aluminum explosion-proof enclosure is shown in Figure 1 below: Figure 1. Model 670-801-EX/UL SmartSeries Amplifier \\s_eng\gtcproddocs\standard ioms - current release\42004 instr. manuals\42004-615l2.doc 6/97... - Page 3 Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 3 of 15 External The enclosure and cover are fabricated from thick aluminum castings. The cover and the enclosure mate at machined rims to form the flame path seal. The cover is secured to the enclosure with bolts around the perimeter.
- Page 4 Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 4 of 15 Internal The SmartSeries amplifier contains the following components: 3.56 MAX • Chassis (90.42) • Bias Power Supply sub-assembly fixed to the front panel • Speaker transformer fixed at the top of the chassis •...
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Page 5: Block Diagram
Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 5 of 15 Block Diagram Figure 5. Model 670-801 Block Diagram As shown on Figure 5, P1 is the 16-pin male connector located on the back of the Base-16 PCBA. It plugs into the socket located inside the cast aluminum enclosure. - Page 6 Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 6 of 15 Interfaces The unit interfaces to the multi-party cable and to the external loudspeaker, and auxiliary devices via P1, a 16-pin connector. Pin No. Function Description Pin No. Function Description PL_L1 Party line (L1)
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Page 7: Installation
Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 7 of 15 Installation Before installing SmartSeries equipment, design the system layout taking into consideration personnel safety, operational function and convenience, and power cable length. In general, for 115 V ac systems the total power cable length should not exceed 1 mile (1.6 km), but the length of cable between the stations is not a critical factor. - Page 8 Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 8 of 15 UL Version 1. Install the conduits for system and speaker cable and make connection to the enclosure. External conduits in Class I, Groups C, and D must have gas seals located not more than 18 inches (457mm) from the amplifier enclosure.
- Page 9 Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 9 of 15 : If acoustical feedback occurs between the speaker associated with the amplifier and the handset on a nearby station, the speaker can be muted by moving the violet wire on the enclosure on TB1 to terminal 7.
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Page 10: Operation
Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 10 of 15 Operation This unit amplifies page audio for broadcast over external speaker(s). Adjustments CAUTION It is necessary to open the explosion-proof enclosure to make adjustments. Make adjustments only when the conditions at your facility are such that no explosive atmospheres can be present. This assembly includes one control that permits adjustments to be made while the assembly is mounted in its enclosure but with the bolted cover removed. -
Page 11: Internal Adjustments
Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 11 of 15 Offset Level The Offset Level adjustment causes the speaker amplifier to maintain a set difference between the ambient level and the speaker output level. The SmartVolume™ feature measures the ambient noise at the associated speaker and adds the Offset Level to set the speaker amplifier gain. -
Page 12: Maintenance
Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 12 of 15 Maintenance In order to verify and ensure explosion-proof integrity, perform regular preventive maintenance and inspection checks on the GAI-Tronics explosion-proof stations. The GAI-Tronics Field Service Department can formulate a service contract to suit specific preventive maintenance needs. CAUTION Remove power from the enclosure before performing any maintenance. -
Page 13: Software Configuration
Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 13 of 15 Software Configuration The unit has the following versions of software: PCBA Device Part Number Base-16 PCBA 50086-014 FSK modem PCBA 49023-030 The SmartSeries Amplifier has software on U2 of the Base-16 PCBA and on U1 of the FSK Modem PCBA. -
Page 14: Specifications
Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 14 of 15 Specifications Electrical Voltage ................90 to 140 V ac (120 V ac nominal) 50/60 Hz Power consumed ......Zero/maximum signal (12 watts): 15 VA, 10.5 watts/ 53 VA, 34 watts Speaker Amplifier Output................ -
Page 15: Replacement Parts
Pub. 42004-615L2 Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 15 of 15 Replacement Parts Model Number Description 751-801 Amplifier 12555-001 FSK PCBA Kit 12557-001 Base-16 PCBA Kit 12558-001 Bias Power Supply PCBA Kit 12530-001 Transformer/Connector Subassembly Reference Material Reference to Assembly/Model Drawings Published by Title GAI-Tronics Ref. -
Page 16: Warranty
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.
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