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Hubbell GAI-Tronics SmartSeries 7805-821-EX Manual

Handset station with rtu for atex zone 1
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Model 7805-821-EX SmartSeries Handset
Station with RTU for ATEX Zone 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, an intelligent speaker amplifier,
and handset 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 Model 7805-821-EX SmartSeries Handset Station is designed to provide clear paging
communications even in high noise areas where explosive atmospheres exist or may exist.
The Model 7805-821-EX is BASEEFA approved to ATEX Standards Ex dib for Zone 1 Group IIC T5.
The intelligent SmartSeries Handset Station is designed for use on the GAI-Tronics multi-party system
cable or with an ADVANCE system. It includes micro-controllers that are programmed to:
•
Receive and send data messages on the system cable
•
Monitor and control handset
•
Measure ambient noise and adjust speaker volume 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
Pub. 42004-653L2B
Fax: 610-796-5954

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Summary of Contents for Hubbell GAI-Tronics SmartSeries 7805-821-EX

  • Page 1 Pub. 42004-653L2B 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 7805-821-EX SmartSeries Handset Station with RTU for ATEX Zone 1 Confidentiality Notice This manual is provided solely as an operational, installation, and maintenance guide and contains...

  • Page 2: Hardware Configuration

    Pub. 42004-653L2B 2 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page The SmartSeries station RTU is designed to be used with the SmartSeries amplifiers and handsets for use ® in a standard multi-party Page/Party system or with an ADVANCE system. It is also possible to control an external device by activating and deactivating a single relay circuit located in the SmartSeries station enclosure.
  • Page 3 Pub. 42004-653L2B 3 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page See Figure 2 for the Model 7805-821-EX cable gland entries. The base contains three M25 entries (two fitted with plugs), two M20 entries, and one M16 entry. Figure 2.
  • Page 4 Pub. 42004-653L2B 4 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Internal The SmartSeries Handset Station contains: • Chassis • Speaker Amplifier/ Power Supply sub-assembly fixed to the front panel; • Handset/FSK Modem/microcontroller with a plug at the top, pointing to the rear. Figure 3.

  • Page 5: Configuration Inputs

    Pub. 42004-653L2B 5 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Block Diagram Figure 4. Model 701-902-EX SmartSeries Handset Station Block Diagram P1 is the 16-pin male connector located on the back of the Speaker Amp/Power Supply PCBA. It plugs into the socket located inside the cast aluminum enclosure.
  • Page 6 Pub. 42004-653L2B 6 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Configuration 1 In the first configuration, the relay output is supervised to continually ensure the integrity of the external circuit. The first input, IN 1, is used to support supervision of the relay output circuit. This wiring method requires the use of a 20 k-ohm, 2-watt resistor placed in parallel to the relay output device (e.g.
  • Page 7 Pub. 42004-653L2B 7 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Configuration 2 The second configuration uses two supervised input circuits and does not make use of the single relay output. This configuration is accomplished by interfacing to terminal block TB2 pins 12 and 13 for IN 1 and pins 14 and 15 for IN 2.

  • Page 8: Function Description

    Pub. 42004-653L2B 8 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Configuration 3 In the third configuration, the relay output circuit is non-supervised. This means the RTU can command a system device to activate or deactivate without the integrity of the external circuit being verified. In this configuration, both inputs are available.

  • Page 9: Installation

    Pub. 42004-653L2B 9 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Wiring to the RTU is performed by connecting the external circuits to the appropriate lugs on the TB2 terminal block located on the rear panel on the enclosure. The following table shows the wiring for the terminal blocks: Terminal Block Lug Number...
  • Page 10 Pub. 42004-653L2B 10 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Mounting : The mounting surface must be able to support 55 lbs. (25 kg). 1. Remove the front panel. Allow the front panel to hang from the rear of the enclosure by means of two retaining straps during installation.
  • Page 11 Pub. 42004-653L2B 11 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Follow the mounting instructions described above. 1. Make up cable core ends as required for connection to the terminal blocks in the enclosure base. 2. 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.
  • Page 12 Pub. 42004-653L2B 12 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Figure 10. Multi-Party Wiring Detail \\s_eng\gtcproddocs\standard ioms - current release\42004 instr. manuals\42004-653l2b.doc 09/04...

  • Page 13: Operation

    Pub. 42004-653L2B 13 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Operation Complete the following steps to make a page announcement: 1. Lift the handset from the cradle. 2. Rotate the selector switch on the front cover to an unoccupied party line. 3.

  • Page 14: Minimum Level

    Pub. 42004-653L2B 14 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Adjustments This assembly includes one external control that permits adjustments to be made while the assembly is mounted in its enclosure and several internal controls that are accessible only by removing the assembly from its enclosure.

  • Page 15: Offset Level

    Pub. 42004-653L2B 15 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page 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 station’s speaker and adds the Offset Level to set the speaker amplifier gain.

  • Page 16: Internal Adjustments

    Pub. 42004-653L2B 16 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Internal Adjustments Although they typically require no adjustments, the following volume levels can be set with internal controls: Audio Transmit Level and Handset Receiver Volume. To make an adjustment, it is necessary to remove the assembly from its enclosure and make a temporary connection between the assembly and the enclosure.

  • Page 17: Other Controls

    Pub. 42004-653L2B 17 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Other Controls This assembly includes the following additional controls. These controls affect system performance; therefore, only qualified GAI-Tronics personnel with the appropriate test equipment should make adjustments. Tampering with these controls may void your warranty. AGC Threshold The control labeled AGC THRESH (on the Handset/FSK/µP PCBA) sets the level at which automatic gain control (AGC) limits the handset microphone signal.

  • Page 18: Maintenance

    Pub. 42004-653L2B 18 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Maintenance In order to verify and ensure explosion-proof integrity, perform regular preventive maintenance and inspection checks on the GAI-Tronics explosion-proof enclosure. 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 19: Troubleshooting

    Pub. 42004-653L2B 19 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Troubleshooting The following suggestions are provided to aid a technician in troubleshooting: Problem Solution Integral speaker level requires Adjust the speaker volume control at the amplifier. adjustment. Outgoing conversation level requires Adjust microphone gain at the amplifier.

  • Page 20: Specifications

    Pub. 42004-653L2B 20 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Specifications Electrical Voltage..................90 to 140 V ac (120 V ac nominal) 50/60 Hz Power consumed ........Zero/maximum signal (12 watts): 15 VA, 9 watts; 59 VA, 32 watts Speaker Amplifier Output: ................
  • Page 21 Pub. 42004-653L2B 21 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Mechanical Dimensions ..........14.4 H × 14.4 W × 7.83 D inches (367 × 367 × 199 mm) overall Enclosure material ........................LM25TF, epoxy Handset material ..........................Gray ABS Handset microphone ....................Dynamic, noise canceling Handset receiver..............

  • Page 22: Reference Material

    Pub. 42004-653L2B 22 of 22 Model 7805-821-EX SmartSeries Handset Station With RTU Page Replacement Parts Model Number Description ® 10111-007 Handset Assembly with 6-foot Hytrel Cord without gland 12514-004 Coil Cord Kit, 6-foot without gland 12511-001 Dynamic Transmitter and Cap 12530-001 Transformer/Connector Subassembly 13204-002...

  • Page 23: 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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