Ex de Gas installation
Contents
1. warning signals 1 Introduction The BExL25E and BExL15E are flameproof increased safety loudspeakers which are certified to meet the requirements of the ATEX directive 94 9 EC and the IECEx scheme The loudspeakers can be used in hazardous areas where potentially flammable atmospheres may be present There are four versions of each loudspeaker 8 ohm or 16 ohm and 70V or 100V Line transformer On 70V and 100V line transformer units there are four output tappings for each size of loudspeaker The BExL25E unit produces output levels in the 117dB A range and the BExL15E unit produces output levels in the 112dB A range Both loudspeakers 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 For ambient temperatures over 55 C the gas groups are limited to IIA and IIB 2 Marking All units have a rating label which carries the following important information Unit Type No BExL25E or BExL15E Impedance 8 ohm or 16 ohm 70V Line or 100V Line Codes Ex de IIC T4 for Ta 50 C to 55 C Ex de IIB T4 for Ta 50 C to 70 C Certificate Nos KEMA 99ATEX6312 IECEx KEM 10 0003 Epsilon x Equipment Group 2G and Category C s 0518 DO NOT OPEN WHEN AN EXPLOSIVE GAS ATMOSPHERE IS PRESENT CE Marking Notified Body No Warnings COVER BOLTS CLASS A4 80 USE HEAT RESISTING CABLES AND CABLE GLANDS Rated 110 C AT AMB TEMPERATURES OVER2. end of line unit Note the monitoring resistor MUST be European Safety Systems Ltd Impress House Mansell Road Acton London W3 Document No IS 2424 P Issue G 13 01 10 Tel 44 0 208 743 8880 Fax 44 0 208 740 4200 sales e2s com www e2s com Sheet 3 of 4 BExL25E and BExL15E 8 ohm and 16 ohm Loudspeakers connect to the terminals in the flameproof enclosure it MUST NOT be connect to the terminals in the Increased Safety termination enclosure see section 8 of this manual Flameproof Enclosure for access to the flameproof enclosure Figures 4 and 5 show the terminals in the flameproof enclosures for the 70V and 100V Line and low impedance units respectively On the low impedance units care must be taken with the polarity of the monitoring voltage Link On 70V and 100V line units the end of line resistor used must have a minimum resistance value of 4k7 ohms and a minimum wattage of 2 5 watts The terminal numbers across which the resistor should be fitted will depend on the output levels selected and are given in the following table Terminals BExL25E 25W BExL15E 15W A B 250 sw A C 12 5W 7 5W A D 6W 3W A E 2W 1W BExL25E and BExL15E 70V and 100V Line Loudspeakers Flameproof Enclosure On low impedance units the end of line resistor used must have a minimum resistance value of 2k ohms and a minimum wattage of 0 5 watts or
3. 0518 Rake Lane Eccleston Chester CH4 9JN UK Quality Assurance Notification SIRA 05 ATEX M342 Provisions fulfilled by the equipment 12 G Ex d IIB or IIC T4 or 112 G Ex de IIB or IIC T4 112 D Ex tD A21 IP66 or IP67 T100 C or T115 C Standards applied EN 60079 0 2006 EN 60079 1 2007 EN 60079 7 2003 EN 61241 0 2006 EN 61241 1 2004 Directive 89 106 EEC Construction Products Directive CPD BExS110D24DC BExS120D24DC tones 2 3 9 15 16 17 only Notified Body for EC type Examination VdS Schadensverhiitung GmbH Notified Body No 0786 Amsterdamer Str 172 174 50735 K ln Germany EC type Examination Certificate 0708 CPD 20225 Standards applied EN 54 3 2001 A1 2002 Directive 2009 26 EC Marine Equipment Directive MED BExS110D24DC M onl Notified Body for EC type Examination Germanischer Lloyd SE Notified Body No 0098 Brooktorkai 18 20457 Hamburg Germany EC type Examination Certificate 19 702 11 HH Standards applied EN 54 3 2001 A1 2002 A2 2006 IEC 60092 504 2001 IEC 60533 1999 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 2
4. 40 C Year of Construction Serial No i e 10 1L43000001 3 Type Approval Standards The loudspeakers have EC Type Examination and IECEx certificates issued by KEMA and have been approved to the folowing standards INSTRUCTION MANUAL ATEX IECEx BExL25E and BExL15E Flameproof Increased Safety Loudspeakers EN60079 0 2006 IEC60079 0 2004 Ed4 General Requirements EN60079 1 2007 IEC60079 1 2007 Ed6 Flameproof Enclosure d EN60079 7 2003 IEC60079 7 2001 Ed3 Increased Safety e 4 Installation Requirements The loudspeakers must be installed in accordance with the latest issues of the relevant parts of the EN60079 and IEC60079 standards 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 should only be carried out by a competent electrical engineer who has the necessary training 5 Zones Gas Group Category and Temperature Classification The BExL25E and BExL15E loudspeakers have been certified Ex de IIC T4 for Ta 50 C to 55 C and Ex de IIB T4 for Ta 50 C to 70 C This means tha
5. __ Figure 3 2 off M20 Cable Entries terminal cover ensure that the earth bonding wire between the two castings is secure and that the O ring seal is in place Insert the four M4 hexagon screws and their spring washers and tighten them down 10 Power Amplifier Selection It is important that the loudspeakers are connected to power amplifiers that have outputs that are compatible to the type of loudspeaker being used Loudspeakers with a 70V or 100V line matching transformer fitted must be connected to a power European Safety Systems Ltd Impress House Mansell Road Acton London W3 Document No IS 2424 P Issue G 13 01 10 sales e2s com www e2s com Tel 44 0 208 743 8880 Fax 44 0 208 740 4200 Sheet 2 of 4 amplifier with a 70V or 100V line output Low impedance 8 ohm or 16 ohm loudspeakers must be connected to amplifiers with a suitable low impedance output The following table shows the range of loudspeakers Unit Type Input Wattage Max I P Volts BExL25E 100V Line 25W 100V BExL25E 70V Line 25W 70V BExL25E 8 ohm 25W 14 14V BExL25E 16 ohm 25W 20V BExL15E 100V Line 15W 100V BExL15E 70V Line 15W 70V BExL15E 8 ohm 15W 10 95V BExL15E 16 ohm 15W 15 49V The above table also shows the maximum AC signal voltages at which the loudspeakers can be operated The current levels taken by the each loudspeaker will depend on which output tapping has been selected
6. 009 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 London 04 07 2012 Quality Assurance Manager Document No DC 001 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
7. a minimum resistance value of 500 ohms and a minimum wattage of 2 watts On the low impedance units care must be taken with the polarity of the monitoring voltage If an end of line resistor is fitted to a unit the links on the printed circuit boards of all loudspeakers in the line must be cut for the dc blocking capacitors to be in circuit in order to dc monitor the line see figure 5 European Safety Systems Ltd Impress House Mansell Road Acton London W3 sales e2s com Tel 44 0 208 743 8880 www e2s com Fax 44 0 208 740 4200 Document No IS 2424 P Issue G 13 01 10 Sheet 4 of 4 EC DECLARATION OF CONFORMITY amp Manufacturer European Safety Systems Ltd Impress House Mansell Road Acton s London W3 7QH UK warning signals Equipment Type BExS110D BExS120D BExS110E BExS120E BExDS120D BExDS110D BExDS120E BExDS110E BExL25D BExL15D BExL25E BExL15E BExDL25D BExDL15D BExDL25E BExDL15E BExA110D BExA120D BExA110E BExA120E BExDA110D BExDA120D BExDA110E BExDA120E BExTS110D BExDTS110D BExH120D BExDH120D BExL25GD BExDL25GD Directive 94 9 EC Electrical and Mechanical equipment for use in explosive 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 99ATEX6312 Notified Body for Quality Assurance Notification Sira Certification Service Notified Body No
8. ck Therefore in order that loudspeakers can be connected in a parallel line the terminal block is fitted with approved connecting combs so that each electrical connection has two terminals in parallel Terminal No s 1 and 12 1 and 6 on low impedance units must not be used on any units Cables with a cross sectional area of up to 4mm can be connected to the terminal block Cables that have a small cross sectional area should be fitted with crimp ferules The low impedance loudspeakers are fitted with two pairs of terminals 2 3 and 4 5 The 70V and 100V Line loudspeakers are fitted with five pairs of terminals Terminals 10 11 which are the common and one of the other four pairs of terminals 8 9 6 7 4 5 or 2 3 should be selected depending on what output level is required see the following table BExL25E 25W BExL15E 15W Terminals 70V and 100V Line 70V and 100V Line 10 11 to 8 9 25W 15W 10 11 to 6 7 12 5W 7 5W 10 11 to 4 5 6W 3W 10 11 to 2 3 2W 1W 15 End of Line DC Monitoring On BExL25E and BExL15E loudspeakers dc line monitoring can be used if required Both the 70V and 100V Line units and the Low Impedance units have blocking capacitors fitted It should be noted that each loudspeaker has a 1M ohm bleed resistor connected across the blocking capacitor and this should be taken into account when selecting the value of the end of line monitoring resistance The end of line monitoring resistor can be connected to the
9. e monitoring component 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 that the O ring seal is in place When replacing the terminal chamber section casting ensure that it is square with the flameproof chamber casting before inserting Carefully push the section in place allowing time for the air to be expelled Only after the section is fully in place should the four M6 Stainless Steel A4 80 cover bolts and their spring washers be inserted and tightened down If the section jams while it is being inserted carefully remove it and try again Never use the M6 cover bolts to force the cover into position Flameproof Chamber 4 off M6 Cover Screws Increased Safety Chamber 4 off M4 Cover Screws External Earth Terminal 9 Access to the Increased Safety Terminal Chamber To connect the cables to the loudspeaker it is necessary to remove the terminal cover to gain access to the termination chamber To achieve this remove the four M4 hexagon socket head screws see figure 2 The four M4 screws and their spring washers are grade A4 stainless steel and they should be kept in a safe place during installation Before replacing the Internal Bonding O O Wire Terminal Internal Earth Terminal SPSNSSNSSNISS_S 6 696896555 All
10. of chamber casting the terminal section casting and the terminal cover casting 13 Cable Glands The BExL25E and BExL15E loudspeakers have dual cable gland entries which have an M20 x 1 5 entry thread as standard Only cable glands approved for Ex e applications or better i e Ex d applications can be used They must be suitable for the type of cable to be used and also meet the requirements of the Ex equipment installation standards EN60079 14 2008 IEC60079 14 2007 SAFETY WARNING If the loudspeakers are 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 If a high IP Ingress Protection rating is required then a suitable sealing washer must be fitted under the cable gland When only one cable entry is used the other one must be closed with an Ex e blanking plug which must be suitably approved for the installation requirements 14 Cable Connections The cable connections are made into an Ex e Il approved twelve way terminal block six way on low impedance units which is located in the Increased Safety Area terminal chamber see figure 3 See section 9 of this manual for access to the terminal chamber When wiring into Increased Safety Area terminal enclosures you are only permitted to connect one wire into each way on the terminal blo
11. see section 14 of this instruction manual BExL25E 70V and 100V Line units have output levels of 25W 12 5W 6W and 2W BExL15E 70V and 100V Line units have output levels of 15W 7 5W 3W and 1W 11 Cable Selection When selecting the cable size consideration must be given to the current that each unit draws the number of loudspeakers on the line and the length of the cable runs SAFETY WARNING If the loudspeakers are 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 12 Earthing All loudspeakers 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 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 M5 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 wires ensure that a good quality earth is maintained between the flamepro
12. t the units can be installed in locations with the following conditions Area Classification Zone 1 Explosive gas air mixture likely to occur in normal operation Zone2 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 Up to 55 C only Hydrogen and Acetylene Equipment Category 2G Temperature Classification T1 400 C T2 300 C T3 200 C T4 135 C European Safety Systems Ltd Impress House Mansell Road Acton London W3 7QH Document No IS 2424 P IssueG 13 01 10 sales e2s com www e2s com Tel 44 0 208 743 8880 Fax 44 0 208 740 4200 Sheet 1 of 4 Ambient Temperature Range 50 C to 55 C Gas Groups IIA IIB and IIC 50 C to 70 C Gas Group IIA and IIB 6 Loudspeaker Location and Mounting The location of the loudspeakers should be made with due regard to the area over which the unit must be audible The loudspeakers should only be fixed to services that can carry the weight of the unit The loudspeakers 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 in the direction that the sound is primarily required to cover This can be achieved by loosening the two large bracket screws in
13. 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 loudspeaker cannot move in service Flameproof Terminal Terminal Chamber Chamber Cover Plastic Acoustic Horn Please see Safety Waming in Section 7 of this manual F S S Mounting 7 Safety Warning Electrostatic Hazard The acoustic horn section is made of ABS Plastic therefore to avoid a possible ELECTROSTACTIC CHARGE the unit must only be cleaned with a damp cloth 8 Access to the Flameproof Enclosure Access to the flameproof enclosure wil not normally be necessary as the cables enter the unit in the Ex e Increased Safety Termination enclosure Access will only be required if you need to fit an end on line monitoring component see section 15 of this manual To gain access to the flameproof enclosure remove the four M6 hexagon socket head screws see figure 2 and withdraw the terminal chamber 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 loudspeakers It is therefore important that these screws and their spring washers are kept in a safe place during installation On completion of the fitting of th
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