Ex d & Ex tD Gas & Dust installation
Contents
1. NOTE Either the L or the N wire may be made common to both the sounder and the beacon to reduce the number of cores in the cable Tel 44 0 208 743 8880 Document No IS 2463 P European Safety Systems Ltd Issue E Impress House Mansell Road Acton London W3 7QH 19 03 10 Sheet 6 of 6 sales e 2 s com www e 2 s com Fax 44 0 208 740 4200 EC DECLARATION OF CONFORMITY v2 Manufacturer European Safety Systems Ltd Impress House Mansell Road Acton 3 London W3 7QH UK warning signals Equipment Type BExCS110 05D BExDCS110 05D BExCL15 05D BExDCL15 05D BExCA110 05D BExDCA110 05D BExCTS110 05D BExDCTS110 05D BExCTV110 05D BExDCTV110 05D BExCS110L1D BExDCS110L1D 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 01ATEX2223X 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 IIB T4 Il 2 D Ex tD A21 IPGX T100 C or T115 C Standards applied EN 60079 0 2006 EN 60079 1 2007 EN 61241 0 2006 EN61241 1 2004 Directive 2004 108 EC Electromagnetic Compatibility Directive2. 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 wire ensures that a good quality earth is maintained between the sounder section casting and the beacon section casting 11 Cable Glands The BExDCS110 05D unit has dual cable gland entries which have an M20 x 1 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 For combustible dust applications the cable entry device and blanking elements shall be in type of explosion protection increased safety e or flameproof enclosure d and shall have an IP 6X rating according to EN60529 1992 SAFETY WARNING If the unit is used at high ambient temperatures i
3. European Safety Systems Ltd Impress House Mansell Road Acton London W3 7QH Document No IS 2463 P Issue E 19 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 6 To set the required output level adjust the potentiometer on the pcb For maximum output level the potentiometer should TONE SELECTION TABLE Note Switch No 6 is not used be set to the fully clockwise position DIP Switch Tone Selection Settings Stage Selection 15 End of Line Monitoring DC Units Siaced Frequency Desorption T2345 Staged Stages 1 Conti s 1000H 00000 Tone 31 Ti 11 On BExDCS110 05D DC units dc reverse line monitoring Dik gas alinn S se can be used if required All DC units have a blocking diode 2 Ri eg SOE eS 10238 OO Oe eee Y Toes a interva fitted in their supply input lines on both the sounder section 5 Slow Whoop 500 1200Hz at 03Hz 0 10 0 0 Tone Tone 5 and the beacon section An end of line monitoring diode or an with 0 5s gap repeated i a S 4 Sweeping 800 1000 at 1Hz 1 000 Tone 6 Tone 5 end of line monitoring resistor can be connected across the 5 Contes ar 2400H sooo Toe ee ve and ve terminals If an end of line resistor is used it 6 Sweeping 2400 2900Hz at 7Hz 101
4. NOT OPEN WHEN AN EXPLOSIVE GAS DUST ATMOSPHERE IS PESENT Epsilon x Equipment Group and Category CE Marking Notified Body No Warnings COVER BOLTS CLASS A4 80 USE HEAT RESISTING CABLES AND CABLEGLANDS Rated 110 C AT AMB TEMPERATURES OVER 40 C Year of Construction Serial No i e 10 1DCS21000001 BExDCS110 05D Flameproof Combined Sounder Beacon For use in Flammable Gas and Dust Atmospheres 3 Type Approval Standards The units have an EC Type examination certificate issued by KEMA and have 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 unit must be installed in accordance with the latest issues of the relevant parts of the EN60079 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 unit must also be in accordance with any local codes
5. Sweeping 800 1000Hz at 50Hz 1 101 Tone 29 Tone 5 m 25 Sweeping 2400 2900Hz at 50Hz 00011 Tone 29 Tone 5 17 Flip l Flop Operation 26 Simo aed bell som 1 0011 Tone 2 Tone 1 27 Continuous 554Hz 0 011 Tone 26 Tone 5 7 fs 28 Continuous 440Hz 1 011 Tone 2 Tone 5 Two units can be mounted close to each other to form a flip 29 Sweeping 800 1000Hz at 7Hz 00 DTI Tone7 Tone 5 flop operation where the beacons will flash alternately To 30 420Hz repeating 0 625s on 0 625s 1 0 1 1 1 Tone32 Tone5 achieve this mode of operation fit a pin header to the flip SE Ae aien siendi pi p i p 31 1200 500Hz at 1 Hz 0 111 Tone 11 Tone 1 flop header pins on the electronics board i e the two header Prepare to abandon platform pins are shorted together see figures 4 and 5 on one of the a ee re Be eh Ae Loe Tene a Tone two beacons The first flash on the beacon that has the header fitted will be delayed by second The two beacons will then flash alternately every 1 2 a second Unit No 1 Unit No 2 Unit No 3 NOTE Either the ve or the ve wire may a be made common to both the Beacon Sounder Beacon Sounder Beacon Sounder PCS apa ee bce BCE E sounder and the beacon to reduce A s2 s3 42 s2 s3 Fa s2 s3 the number of cores in the cable i L l 3 BExDCS110 05D DC Combined Sounder Unit Beacon and Sounder Wired for Independent Operation European Safety Systems Ltd I
6. and beacon sections can both be wired to the same power supply or to different power supplies 8 Power Supply Selection The following table shows the input current taken by the sounder section and beacon section of the various units Unit Type Input Sounder Max Voltage Current I P Volts BExDCS110 05D 24V DC 265mA 30V BExDCS110 05D 12V DC 195mA 15V BExDCS110 05D 48V DC 130mA 58V BExDCS110 05D 230V AC 56mA 264V BExDCS110 05D 115V AC 110mA 126V Unit Type Input Beacon Max Voltage Current UP Volts BExDCS110 05D 24V DC 300mA 30V BExDCS110 05D 12V DC 750mA 15V BExDCS110 05D 48V DC 1800mA 58V BExDCS110 05D 230V AC 55mA 264V BExDCS110 05D 115V AC 140mA 126V The above table also shows the maximum voltages at which the units can be operated Sounder Section The input current to the sounder section will vary according to the voltage input level and the frequency of the tone selected The current levels shown above are for the 440Hz Continuous tone nominal input voltage The 24V and 48V European Safety Systems Ltd Impress House Mansell Road Acton London W3 7QH Document No IS 2463 P Issue E 19 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 2 of 6 DC units and the 230V AC 115V AC units have a switching voltage regulator circuit and therefore the input current level will decrease slightly as the input voltage in increased and will increase slightly as the input
7. that may apply and should 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 BExDCS110 05D unit has been certified Ex d IIB T4 for Ta 50 C to 70 C for gas and Ex tD A21 IP6X T115 C based on max Ta of 70 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 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 2463 P Issue E 19 03 10 Sheet 1 of 6 sales e 2 s com Www e 2 s com Tel 44 0 208 743 8880 Fax 44 0 208 740 4200 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 T100 C Ta lt 55 C T115 C Ta lt 70 C Equipment Category 2G D Ambient Temperature Range 50 C to 70 C 6 Location and Mounting The lo
8. 00 Tone7 Tone 5 must have a minimum resistance value of 3k3 ohms and a i Sweeping 400 Pozat z c g Tong 2 wes a a DR iren zat 0 Z one one minimum wattage of 0 5 watts or a minimum resistance value 9 Sawtooth 1200 S00Hz at IE o 0010 Tone 151 Tone of 500 ohms and amin wattage of 2 watts If the sounder 10 Altemating 2400 2900Hz at 2Hz 10010 Tone7 Tone 5 and beacon sections are wired to separate power supplies i Ee Cae eee a koe one 3h Tone then an end of line monitoring component can be used in 2 Altemating 800 1000Hzat 0 875Hz 1 1 0 1 0 Toned Tone 5 each section 13 ntermittent 2400Hz at 1Hz 00110 Tone 15 Tone 5 14 ntermittent 800Hz 0 25s on Is off 10110 Tone 4 Tone 5 15 Continuous at 800Hz 0 110 Tone 2 Tone 5 16 Synchronised Operation 16 arene 660Hz 150mS on 1 110 one 18 Tone 5 17 Altemating 544Hz 00001 Tone 2 Tone 27 100mS 440H 2 400mS All BExDCS110 05D units that are connected to the same I8 ntemitent 660z 18 on L amp off 1 0 00 1 Tone Tones supply line will have a synchronized sound output and a 19 400Hz to 1600Hz sweep up over 0 1 0 0 1 Tone2 Tone 5 synchronised flash rate at one flash every second To ensure Se re that the units will be synchronised check that the pin header 20 Continuous 660Hz T1001 Tone2 Tone 5 j j i j 21 Altemating 554 440Hz at 1Hz 00101 Tone 2 Tone 5 Coa header PINS ate not shorted together 22 ntermittent 554Hz at 0 875Hz 10101 Tone 2 Tone 5 23 800Hz pulsing at 2Hz 0 101 Tone 6 Tone 5 24
9. 6 screws are Class A4 80 stainless steel and only screws of this category can be used on these units 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 beacon section casting ensure that it is square with the sounder section chamber casting before inserting Carefully push the beacon section in place allowing time for the air to be expelled Only after the beacon section casting 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 beacon section jams while it is being inserted carefully remove it and try again Never use the cover bolts to force the beacon section casting into position In case of repair contact the manufacturer for information on the dimensions of the flameproof joints External Earth Terminal L 4 off Cover Screws gt J It is important that a suitable power supply is used to run the unit The power supply selected must have the necessary capacity to provide the input current to all of the units connected to the system The sounder
10. 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 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 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 VA QeAEE Martin Streetz Date and Place of Issue London 04 07 2012 Quality Assurance Manager Document No DC 005 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. INSTRUCTION MANUAL ATEX IECEx warning signals 1 Introduction The BExDCS110 05D is flameproof combined sounder beacon which is certified to meet the requirements of the ATEX directive 94 9 EC and the IECEx scheme The sounder section produces loud audio warning signals and the beacon section produces a synchronised visual warning signal The unit can be used in hazardous areas where potentially flammable gas and dust atmospheres may be present Thirty two different first stage audio alarm sounds can be selected by internal switches and each one can be externally changed to a second or third stage alarm sound see tone table on Page 5 The sounder produces output levels in the 110dB A range and the beacon has a flash energy of 5 joules The unit can be used in Zone 1 and Zone 2 areas with gases in groups IIA and IIB and with Temperature Classifications of T1 T2 T3 and T4 and can also be used in Zone 21 and Zone 22 areas for combustible dusts and has an IP rating of IP 67 and a surface temperature rating of T115 C based on a Ta max of 70 C T100 C at 55 C 2 Marking All units have a rating label which carries the following important information Unit Type No BExDCS110 05D Input Voltage DC Units 12V or 24V or 48V AC Units 230V or 115V Codes Exd IIB T4 for Ta 50 C to 70 C Ex tD A21 IP6X T115 C based on max Ta of 70 C Certificate No KEMA 01ATEX2223X IECEx KEM 10 0025X Ex Il 2G D C 0518 DO
12. cation of the unit should be made with due regard to the area over which both the sounder and beacon warning signal must be audible and visible The unit should only be fixed to services that can carry the weight of the unit The unit 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 such that its warning signals can be both heard and seen 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 Plastic Acoustic Horn Anti static Plastic Sounder Beacon Section Section Flashdome TR Guard Bracket 7 Access to the Flameproof Enclosure In order to connect the electrical supply cables to the unit it is necessary to remove the beacon section to gain access to the flameproof chamber To achieve this remove the four M6 hexagon socket head screws see figure 2 and withdraw the beacon section taking extreme care not to damage the flameproof joints in the process Note the four M
13. 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 combined sounder beacon unit BExDCS110 05D has separate printed circuit boards in the sounder and beacon sections The terminals for the sounder are on the printed circuit board in the sounder section and the terminals for the beacon are on the printed circuit board in the beacon section see figures 4 amp 5 and 6 amp 7 See section 7 of this manual for access to the enclosure and the wiring diagrams at the end of this manual The sounder and beacon sections can be wired to the same input supply so that they operate simultaneously or they can be wired to separate input supplies so they can be operated independently see diagrams of pages 5 and 6 of this manual If the sounder and beacon sections are connected to the same input supply the incoming cables should be connected to the input terminals on the beacon board and the two connecting wires that are supplied with the unit should be used to link the supply from the interconnecting terminals on the beacon board down to the supply terminals on the sounder board SOUNDER SECTION CONECTIONS On the AC units a two way terminal block is provided for the live and neutral mains supply wires and a three way terminal block is provided for linking the second and third stages see fig
14. he BExDCS110 05D DC sounder section has the facility to use either ve or ve switching to change the tone to the second and third stages For ve switching connect the two headers on the pcb to the left hand marked ve and centre pins For ve switching connect the headers to the right hand marked ve and the centre pins To change to the second stage tone connect either a ve or ve supply line to terminal S2 depending on which switching mode is being used while maintaining the dc supply to the ve and ve terminals Similarly for the third stage tone connect a ve or ve supply line to terminal S3 The supply to the S3 terminal will automatically override a supply to the S2 terminal AC Units Second and Third Stage Tone Selection To select the second and third stage tones on the BExDCS110 05D AC sounder section the Common C terminal on the three way terminal block on the pcb is connected to the S2 terminal for the second stage tone and the S3 terminal for the third stage tone BExDCS110 05D DC Sounder Section Stage Headers Volume Control S2 s3 DC Input Terminals BExDCS110 05D AC Sounder Section Volume Control Stage Terminals 2 is o 7 o il rz O ce AC Input Terminals DIP Switch 14 Volume Control The BExDCS110 05D sounder section with the exception of 12V DC units has a volume control to adjust the output level
15. mpress House Mansell Road Acton London W3 7QH Document No IS 2463 P Issue E 19 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 5 of 6 Unit No 1 Unit No 2 Unit No 3 Beacon Sounder Beacon Sounder Beacon Sounder PCB 4 PCB PCB 4 PCB PCB 4 PCB S2 S3 S2 S3 S2 S3 2 s3 BExDCS110 05D DC Combined Sounder Unit Beacon and Sounder Wired for Simultaneous Operation Unit No 1 Unit No 2 Unit No 3 Beacon Sounder Beacon Sounder Beacon Sounder PCB PCB PCB PCB PCB PCB LN LN C8283 L N LN C8283 L N LN CS2S3 BExDCS110 05D AC Combined Sounder Unit Beacon and Sounder Wired for Independent Operation Unit No 1 Unit No 2 Unit No 3 Beacon Sounder Beacon Sounder Beacon Sounder PCB PCB PCB PCB PCB PCB LN N LN cs2s3 LN N LN cs2s3 LN N LN cs2s3 BExDCS110 05D AC Combined Sounder Unit Beacon and Sounder Wired for Simultaneous Operation
16. oss sectional area of up to 4mm can be connected to each terminal way When connecting wires to the terminals great care should be taken to dress the wires so that 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 and above BExDCS110 05D_ AC Beacon Section Interconnecting Terminals to sounder pcb simultaneous mode of operation AC Input Terminals Flip Flop Pin Header BExDCS110 05D DC Beacon Section Interconnecting Terminals to sounder pcb simultaneous mode of operation DC Input Terminals Flip Flop Pin Header 13 Tone Selection and 2nd and 3rd Stage Alarms The BExDCS110 05D sounder section has 32 different tones that can be selected for the first stage alarm The sounders can then be switched to sound second and third stage alarm tones The tones are selected by operation of a DIP switch on the sounder pcb for both DC and AC units The tone table on page five shows the switch positions for the 32 tones and which tones are available for the second and third stages To operate the sounder on stage one simply connect the supply voltage to the normal supply terminals ve and ve for DC units L and N for AC units The operation of the second and third stages is different for DC and AC units DC Units Second and Third Stage Tone Selection T
17. ure 7 On the DC units a four way terminal block is provided for ve and ve supply input and second and third stage modes of operation see figure 6 A single wire with a cross sectional area of up to 4mm can be connected to each terminal way or if an input and output wire is required two 2 5mm wires can be connected to each terminal way When connecting wires to the terminals great care should be taken to dress the wire so that when the beacon section 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 European Safety Systems Ltd Impress House Mansell Road Acton London W3 7QH Document No IS 2463 P Issue E 19 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 3 of 6 sectional areas such as 2 5mm and above If the sounder is wired to the same power supply as the beacon always use the flexible interconnecting wires provided BEACON SECTION CONNECTIONS The cable connections are made into the terminal blocks on the electronic pcb assembly located in the beacon section enclosure A four way terminal block is provided on both AC and DC beacons Therefore there are two live terminals and two neutral terminals for the input and output wiring on AC units On the DC units there are two ve terminals and two ve terminals for the input and output wiring Wires having a cr
18. voltage is reduced The 12V units do not have a voltage regulator and therefore their input current will increase when the input voltage is increased Beacon Section The input current to the beacon section will vary according to the voltage input level The current levels shown above are for nominal input voltage The 12V 24V and 48V DC units have a converter circuit and therefore the input current level will decrease slightly as the input voltage in increased and will increase slightly as the input voltage is reduced 9 Cable Selection When selecting the cable size consideration must be given to the input current that each unit draws see table above the number of units 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 units connected to the line SAFETY WARNING If the unit 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 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 beacon section of the unit see figures 2 and 3 Internal Bonding Wire Terminal Internal Earth Terminal 2 off M20 Cable Entries Figure 3
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