INSTRUCTION MANUAL (ATEX / IECEx)
Contents
1. When using the internal earth terminal ensure that the stainless steel M4 flat washer is between the incoming earth wire and the enclosure When using the external earth terminal a cable crimp lug must be used The cable lug should be located between the two M6 stainless steel flat washers The M5 stainless steel spring washer must be fixed between the outer flat washer and the M5 stainless steel nut to ensure that the cable lug is secured against loosening and twisting The internal earth bonding wire ensures that a good quality earth is maintained between the flameproof chamber casting and the flameproof cover casting BExBG21D_ Beacon Cover Internal View Internal Bonding Wire Terminal 2 off M20 Cable Entries 11 Cable Glands The BExBG21D beacon has dual cable gland entries which have an M20 x1 5 entry thread as standard Only cable glands approved for Ex d applications can be used which must be suitable for the type of cable being used and also meet the requirements of the Ex d flameproof installation standard EN60079 14 2008 IEC60079 14 2007 When only one cable entry is used the other one must be closed with an Ex d flameproof blanking plug which must be suitably approved for the installation requirements Internal Earth Terminal Flash Pattern For combustible dust applications the cable entry device and blanking elements shall be in type of explosion protection increased safety e or2. 35 C Ta lt 55 C Equipment Category 2G D Ambient Temperature Range 50 C to 70 C T3 lt 55 C 6 Beacon Location and Mounting The location of the beacon should be made with due regard to the area over which the warning signal must be visible They should only be fixed to services that can carry the weight of the unit SAFETY WARNING The BExBG21D beacon must be mounted with their flashdome in a position between upright and 90 as shown 90 The beacons should be securely bolted to a suitable surface using the 7mm diameter boltholes in the stainless steel U shaped mounting bracket see figure 1 The angle can then be adjusted as required but the mounting restrictions must be observed see above This can be achieved by loosening the two large bracket screws in the side of the unit which allow adjustment in steps of 18 On completion of the installation the two large bracket adjustment screws on the side of the unit must be fully tightened to ensure that the unit cannot move in service SAFETY WARNING The flashdome guard must not be removed from the unit at any time Flameproof Flashdome Chamber Flameproof Guard Cover Figure 1 S S Bracket 7 Access to the Flameproof Enclosure In order to connect the electrical supply cables to the beacon it is necessary to remove the flameproof cover to gain access to the flameproof chamber To achieve this remove the four M6 hexagon sock
3. INSTRUCTION MANUAL ATEX IECEx warning signals 1 Introduction The BExBG21D is a flameproof beacon certified to meet the requirements of the ATEX directive 94 9 EC and the IECEx scheme The beacon produces synchronised visual warning signals and can be used in hazardous areas where potentially flammable gas and dust atmospheres may be present The BExBG21D has can be used in Zone 1 and Zone 2 areas with gases in groups IIA IIB and IIC and Temperature Classifications of T1 T2 T3 and T4 in an ambient temperature up to 55 C The beacon can also be used at an ambient temperature up to 70 C with a temperature classification of T3 The units can be used in Zone 21 and Zone 22 areas for combustible dusts and have an IP rating of IP 67 and a surface temperature rating of T135 C if the upper ambient temperature is restricted to 55 C or T200 C with an the upper ambient temperature of 70 C The BExBG21D beacon has two xenon tubes and can produce three different flash patterns 2 Marking All units have a rating label which carries the following important information Unit Type No BExBG21D Input Voltage DC Units 24V or 48V AC Units 230V or 115V Code Ex d IIC T4 Ta 50 C to 55 C Ex d IIC T3 Ta 50 C to 70 C Ex tD A21 IP67 T135 C based on max Ta of 55 C Ex tD A21 IP67 T200 C based on max Ta of 70 C Certificate No s KEMA OOATEX2006 IECEx KEM 10 0002 Epsilon x Equipment Group and Ex ll 2G D Cate
4. P Issue D 18 03 10 Tel 44 0 208 743 8880 Fax 44 0 208 740 4200 sales e 2 s com www e 2 s com Sheet 3 of 4 3 Wires having a cross sectional area of up to 2 5mm can be connected to each terminal way If an input and output wire is required a 2 5mm wire can be connected to each terminal way When connecting wires to the terminals great care should be taken to dress the wires so that when the cover is inserted into the chamber the wires do not exert excess pressure on the terminal blocks This is particularly important when using cables with large cross sectional areas such as 2 5mm 13 Synchronised Operation All BExBG21D beacons that are connected to the same supply line will have synchronised flash patterns provided that they are set to the same flash pattern 14 Flash Patterns The BExBG21D beacons have two xenon tubes and can produce three different flash patterns as listed below The flash patterns are set internally by the selection of pin headers On the DC beacons the flash pattern set can be changed externally to produce a second stage by connecting terminal S2 to ve supply line The AC beacons do not have a second stage DC Beacons Stage 2 Single Flash 1Hz Both tubes flashing together AF Alternate Flash 2Hz Tubes flashing alternately SF Double Strike 1Hz One Tube flashing immediately SF after the other AJO O j Awe Single Flash Af J
5. et head screws see figure 2 and withdraw the flameproof cover taking extreme care not to damage the flameproof joints in the process Note the four M6 screws are Class A4 80 stainless steel and only screws of this category can be used on these beacons It is therefore important that these screws and their spring washers are kept in a safe place during installation On completion of the cable wiring installation the flameproof joints should be inspected to ensure that they are clean and that they have not been damaged during installation Also check that the earth bonding wire between the two casting sections is secure and the O ring seal is in place When replacing the flameproof cover casting ensure that it is square with the flameproof chamber casting before inserting Carefully push the cover in place allowing time for the air to be expelled Only after the cover is fully in place should the four M6 Stainless Steel A4 80 cover bolts and their spring washer be inserted and tightened down If the cover jams while it is being inserted carefully remove it and try again Never use the cover bolts to force the cover into position 4 off M6 Cover Screws amn N Q External Earth s Terminal nd Figure 2 8 Power Supply Selection It is important that a suitable power supply is used to run the beacon The power supply selected must have the necessary capacity to provide the i
6. flameproof enclosure d and shall have an IP 6X rating according to EN60529 1992 SAFETY WARNING If the BExBG21D beacon is used at high ambient temperatures i e over 40 C then the cable entry temperature may exceed 70 C and therefore suitable heat resisting cable glands must be used with a rated service temperature of at least 110 C 12 Cable Connections The cable connections are made into the terminal blocks on the electronic pcb assembly located in the flameproof enclosure See section 7 of this manual for access to the flameproof enclosure A four way terminal block is provided on the AC beacons with feeds both boards therefore there are two live terminals and two neutral terminals so that both input and output wiring can be terminated if more than one beacon is being wired to a single supply On the DC units there is a three way terminal on each of the boards making up the electronics assembly The terminal blocks are wired in parallel with each terminal having a ve terminal a ve terminal and an S2 second stage terminal Therefore both input and output wiring can be terminated if more than one beacon is being wired to a single supply BExBG21D DC 21 Joule Beacon Supply Terminals Flash Pattern Pin Header 7 Supply Terminals BExBG21D AC 21 Joule Beacon Pin Header Supply F Terminals Figure 5 European Safety Systems Ltd Impress House Mansell Road Acton London W3 7QH Document No IS 2492
7. gory CE Marking C 0518 Notified Body No DO NOT OPEN WHEN AN EXPLOSIVE GAS OR DUST ATMOSPHERE IS PRESENT Warnings COVER BOLTS CLASS A4 80 USE HEAT RESISTING CABLES AND CABLE GLANDS Rated 110 C AT AMB TEMPERATURES OVER 40 C 90 Year of Construction i e 10 1DB72000001 Serial No BExBG21D Flameproof Xenon Beacon For use in Flammable Gas and Dust Atmospheres 3 Type Approval Standards The beacon has EC Type Examination and IECEx certificates issued by KEMA and has been approved to the following standards EN60079 0 2006 IEC60079 0 2004 Ed4 General Requirements EN60079 1 2007 IEC60079 1 2007 Ed6 Flameproof Enclosure d EN61241 0 2006 1EC61241 0 2004 Ed1 Dust General Requirements EN61241 1 2004 IEC60079 1 2004 Ed1 Dust Enclosures tD 4 Installation Requirements The beacon must be installed in accordance with the latest issues of the relevant parts of the BS EN 60079 specifications or the equivalent IEC specifications Selection Installation and maintenance of electrical apparatus for use in potentially explosive atmospheres other than mining applications or explosive processing and manufacture EN60079 14 2008 IEC60079 14 2007 Ed4 Electrical Installations in Hazardous Areas other than mines EN60079 10 2003 IEC60079 10 2008 Ed1 Classification of Hazardous Areas The installation of the units must also be in accordance with any local codes that may apply and shou
8. ive atmospheres ATEX Notified Body for EC type Examination KEMA Quality B V Notified Body No 0344 Utrechtseweg 310 6812 AR Arnhem The Netherlands EC type Examination Certificate KEMA O0ATEX2006 Notified Body for Quality Assurance Notification Sira Certification Service Notified Body No 0518 Rake Lane Eccleston Chester CH4 9JN UK Quality Assurance Notification SIRA 05 ATEX M342 Provisions fulfilled by the equipment 12 G Ex d IIC T3 to T6 or I2 G Exde IIC T4 to T6 2 D Ex tD A21 IP66 or IP67 T85 C to T200 C Standards applied EN 60079 0 2006 EN 60079 1 2007 EN 60079 7 2003 EN 61241 0 2006 EN61241 1 2004 Directive 2004 108 EC Electromagnetic Compatibility Directive EMC Standards applied EN 61000 6 1 2007 EN 61000 6 2 2005 EN 61000 6 3 2007 EN 61000 6 4 2007 The standards EN 60079 0 2006 EN 60079 7 2003 EN 61241 0 2006 and EN 61241 1 2004 are no longer harmonized The requirements of these standards have been checked against the harmonized standards EN 60079 0 2009 EN 60079 7 2007 and EN 60079 31 2009 and there were no major technical changes affecting the latest technical knowledge for the products listed above On behalf of European Safety Systems Ltd declare that on the date the equipment accompanied by this declaration is placed on the market the equipment conforms with all technical and regulatory requirements of the above listed directives Martin Streetz Date and Place of Issue Lo
9. ld only be carried out by a competent electrical engineer who has the necessary training 5 Zones Gas Group Category IP Rating and Temperature Classification The BExBG21D beacon has been certified Ex d IIC T3 Ta 50 C to 70 C and Ex d IIC T4 Ta 50 C to 55 C for gas and Ex tD IP67 T200 C based on max Ta 70 C and T135 C based on max Ta 55 C for dust This means that the units can be installed in locations with the following conditions Area Classification Gas Zone 1 Explosive gas air mixture likely to occur in normal operation Zone 2 Explosive gas air mixture not likely to occur and if it does it will only exist for a short time Gas Groupings Group IIA Propane Group IIB Ethylene Group IIC Hydrogen and Acetylene Temperature Classification T1 400 C Amb 70 C T2 300 C Amb 70 C T3 200 C Amb 70 C T4 135 C Amb 55 C European Safety Systems Ltd Impress House Mansell Road Acton London W3 7QH Document No IS 2492 P Issue D 18 03 10 sales e 2 s com www e 2 s com Tel 44 0 208 743 8880 Fax 44 0 208 740 4200 Sheet 1 of 4 1 Area Classification Dust Zone 21 Explosive dust air mixture likely to occur in normal operation Zone 22 Explosive dust air mixture not likely to occur and if it does it will only exist for a short time IP Rating IP67 T200 C Ta lt 70 C T1
10. ndon 04 07 2012 Quality Assurance Manager Document No DC 004 Issue_C Telephone 44 0 20 8743 8880 European Safety Systems Ltd Facsimile 44 0 20 8740 4200 Company Registration No 2763350 E mail sales e2s com Registered Office Impress House www e2s com Mansell Road London UK W3 7QH UK
11. nput current to all of the beacons connected to the system The following table shows the input current taken by the various units Unit Type Nominal I P Input Max Voltage Current I P Volts BExBG21D 24V DC 1 2A 28V BExBG21D 48V DC 600mA 56V BExBG21D 230V AC 280mA 253V BExBG21D 115V AC 560mA 126 5V The above table also shows the maximum voltages at which the beacons can be operated 9 Cable Selection When selecting the cable size consideration must be given to the input current that each unit draws see table above the European Safety Systems Ltd Impress House Mansell Road Acton London W3 7QH sales e 2 s com Tel 44 0 208 743 8880 www e 2 s com Fax 44 0 208 740 4200 Document No IS 2492 P Issue D 18 03 10 Sheet 2 of 4 2 number of beacons on the line and the length of the cable runs The cable size selected must have the necessary capacity to provide the input current to all of the beacons connected to the line SAFETY WARNING If the BExBG21D beacon is used at high ambient temperatures i e over 40 C then the cable entry temperature may exceed 70 C and therefore suitable heat resisting cables must be used with a rated service temperature of at least 110 C 10 Earthing Both AC and DC beacon units must be connected to a good quality earth The units are provided with internal and external earthing terminals which are both located on the terminal chamber section of the unit see figures 2 and 3
12. o Alternate Flash AIO O B O BIO O Q Double Strike AC Beacons Single Flash 1Hz Both tubes flashing together Alternate Flash 2Hz Tubes flashing alternately Double Strike 1Hz One Tube flashing immediately after the other A B Q Q Single Flash A O Alternate Flash AIO O B JO BIOO 5 Double Strike 15 End of Line Monitoring DC Units On the BExBG21D DC beacon dc reverse line monitoring can be used if required All DC beacons have a blocking diode fitted in their supply input lines An end of line monitoring diode or an end of line monitoring resistor can be connected across the ve and ve terminals If an end of line resistor is used it must have a minimum resistance value of 3k3 ohms and a minimum wattage of 0 5 watts or a minimum resistance value of 500 ohms and a minimum wattage of 2 watts European Safety Systems Ltd Impress House Mansell Road Acton London W3 7QH Document No IS 2492 P Issue D 18 03 10 sales e 2 s com www e 2 s com Tel 44 0 208 743 8880 Fax 44 0 208 740 4200 Sheet 4 of 4 4 EC DECLARATION OF CONFORMITY v2 Manufacturer European Safety Systems Ltd Impress House Mansell Road Acton s London W3 7QH UK warning signals Equipment Type BExBG05D BExBGO5E BExBG10D BExBG10E BExBG15D BExBG15E BExBG21D BExTBGO5D BExBGL1D Directive 94 9 EC Electrical and Mechanical equipment for use in explos
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