Klaxon Syrex IS-XN User's Manual
Contents
1. been issued by the Notified Body Sira This confirms compliance with the European ATEX Directive 94 9 EC for Group ll Category 1G equipment The beacon carries the Community Mark and subject to local codes of practice may be installed in any of the EEA member countries following materials used in its construction Enclosure ABS Plastic Lens Polycarbonate If the equipment is likely to come into contact with aggressive substances then it is the responsibility of the user to take suitable precautions that prevent it from being adversely affected thus ensuring that the type of protection is not compromised Aggressive substances e g acidic liquids or gases that may attack metals or solvents that may affect polymeric materials Suitable precautions e g regular checks as part of routine inspections or establishing from the material s data sheet that it is resistant to specific chemicals Klaxon Signals Ltd Wrigley Street Oldham Lancashire UK OL4 1HW Document No Klaxon Syrex IS XN Issue A 11 11 05 sales klaxonsignals com www klaxonsignals com Sheet 1 of 3 Tel 44 0 161 287 5555 Fax 44 0 161 287 5511 SPECIAL CONDITIONS FOR SAFE USE as stated in the EC Type Examination Certificate SIRA 0O5ATEX2269X Conditions for Syrex IS XN Beacon The equipment has an ingress protection rating of IP65 However if it has been supplied without cable entry devices then the user shall ensure that the dev2. depends upon environmental conditions but initially we recommend that this should be done annually No attempt should be made to repair a faulty Syrex IS XN beacon Suspect beacons must be returned to Klaxon Signals Ltd or to your local agent for repair 13 GUARANTEE Beacons which fail within the guarantee period should be returned to Klaxon Signals Ltd or our local agent It is helpful if a brief description of the fault symptoms is provided Klaxon Signals Ltd Wrigley Street Oldham Lancashire UK OL4 1HW Document No Klaxon Syrex IS XN Issue A 11 11 05 sales klaxonsignals com www klaxonsignals com Tel 44 0 161 287 5555 Fax 44 0 161 287 5511 Sheet 3 of 3
3. INSTRUCTION MANUAL ATEX Syrex IS XN Intrinsically Safe LED Beacon klaxon This instruction sheet describes installations which conform to BS EN _ 60079 Part14 2003 Electrical Installation in Hazardous Areas When designing systems for installation outside the UK the local Code of Practice should be consulted The Syrex IS XN beacon is CE marked for compliance with the European Explosive Atmospheres Directive 94 9 EC and the European EMC Directive 89 336 EEC 1 INTRODUCTION The Syrex IS XN is an ATEX certified intrinsically safe 1 The certification marking is as follows Syrex IS XN Beacon 1G EEx ia IIC T4 40 C lt Ta lt 60 C Ui 28V Pi 1 2W SIRA OSATEX2269x C 0 H 0 Year Serial No 05 6MB000001 WARNING To AVOID A POSSIBLE ELECTROSTATIC CHARGE ONLY CLEAN WITH A DAMP CLOTH Oldham OL4 1HW UK Klaxon Signals Ltd www klaxonsignals com 0518 Soe beacon which will produce a visual warning in a hazardous 2 The equipment may be used in zones 0 1 and 2 area Red Amber Green and Blue output models are with flammable gases and vapours with apparatus available groups IIA IIB amp IIC and with temperature classes T1 T2 T3 and T4 3 The equipment is only certified for use in ambient 2 DESCRIPTION temperatures in the range 40 C to 60 C and The device will start to flash when power is applied to should not be used outside this range terminals and The beacon has two fla
4. age should be between 20V and the maximum working voltage of the barrier The circuit will continue to work at lower voltages but the beacon light output level will be reduced If the beacon is being operated from a lower voltage power supply of say 12V or less then a 15V 100 ohm barrier can be used which will improve the beacon light output levels at lower voltages Hazardous Area Safe Area Syrex IS XN Beacon 28V 1 2W x Positive Barrier On Off e Power Supply ov Fig 3 Using a single channel barrier If the beacon control switch is in the negative wire and the power supply OV is earthed the circuit shown in Fig 4 may be used For simplicity the two barriers may be combined into one package The power supply voltage should be between 21V and the maximum working voltage of the 28V barrier The circuit will continue to work at lower voltages but the beacon brilliance will be reduced Hazardous Area Safe Area Syrex IS XN Beacon 28V 1 2W paman 4 Positive Barrier Diode Return Barrier On off Fig 4 Single stage alarm using two channel barrier 7 ELECTRICAL SYSTEM DESIGN FOR INSTALLATION IN HAZARDOUS AREAS USING GALVANIC ISOLATORS Galvanic isolators do not require a high integrity earth connection For small systems where a high integrity earth is not already available the use of galvanic isolators often reduces the overal
5. and 1 2W Up to three Syrex IS XN beacons can be connected in parallel and be powered from a common barrier or isolator Parallel connection of beacons will significantly reduce the brightness of each device The maximum permitted cable parameters defined by the barrier or isolator certificate must not be exceeded Syrex IS XN Beacon Ail 2Hz 1Hz Flash Rate ie oes Flash Rate wW Header Pins Fig 1 Location of field terminals and controls 5 INSTALLATION In addition to the certification requirements shown in section 4 2 the environmental conditions must be within the limits shown on the product specification The beacon enclosure provides IP65 protection and is suitable for installation in an exterior location if an appropriate sealed cable entry is used Syrex IS XN beacons should only be installed by trained competent personnel 5 1 Mounting The Syrex IS XN beacon may be secured to any flat surface by inserting two mounting screws through the back of the round base see figure 2 The enclosure provides IP65 protection and is suitable for installation in exterior locations provided that the area around the two mounting screws through the back of the base moulding has been sealed and that suitable cable glands with the required IP rating have been used The lens should be aimed towards the area where maximum visibility is required 5 2 Installation procedure a Unscrew the beacon unit security screw
6. and remove the beacon section from the base by turning it anti clockwise Ensure that the O ring seal remains in place b Remove the required 20mm knockout section s depending on system wiring and mount the base to a flat surface by inserting two screws through the back of the base c Fit the required number of 20mm cable glands or conduit entries into the base and connect the field wiring to the appropriate beacon terminals as shown in section 6 and Fig 1 of this manual d Check that the O ring seal is correctly located on the beacon section see Fig 1 and insert the beacon section into the base Push it fully home and turn it clockwise to align the mouldings before tightening the security screw Fit mounting screws through base __ Fig 2 Mounting Beacon Base Klaxon Signals Ltd Wrigley Street Oldham Lancashire UK OL4 1HW Document No Klaxon Syrex IS XN Issue A 11 11 05 Sheet 2 of sales klaxonsignals com www klaxonsignals com Tel 44 0 161 287 5555 Fax 44 0 161 287 5511 6 ELECTRICAL SYSTEM DESIGN FOR INSTALLATION IN HAZARDOUS AREAS USING ZENER BARRIERS If the beacon is controlled by a switch in the positive supply or the power supply is being turned on and off only a single channel Zener barrier is required as shown in Fig 3 This circuit may also be used if the beacon is being controlled by a mechanically activated switch on the hazardous area side of the barrier The power supply volt
7. ices that are fitted will provide an ingress protection that is appropriate to the environment in which it is installed i e IP20 or better If only one of the two cable entries are used then the unused entry knockout shall be left intact or fitted with a blanking device that ensures ingress protection appropriate to the environment in which it is installed i e IP20 or better The equipment shall not be directly installed in any process where its enclosure might be electro statically charged by the rapid flow of a non conductive media 4 2 Zones Gas Groups and T Rating The Syrex IS XN beacon has been certified EEx ia IIC T4 When connected to an approved system it may be installed in Zone 0 explosive gas air mixture continuously present 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 Be used with gases in groups Group A propane Group B ethylene Group C hydrogen Having a temperature classification of T1 450 C T2 300 C T3 200 C T4 135 C 4 3 Terminals and power supply Power is supplied to the beacon via terminals and which have maximum input safety parameters of Ui 28V Pi 1 2W Ci 0 Li 0 Syrex IS XN beacons may be powered from ATEX certified Zener barriers or galvanic isolators certified by an EC Approved Body which have output parameters equal to or less than 28V
8. l installation cost and simplifies design The Syrex IS XN beacon may be powered by any galvanic isolator having output parameters within the limits specified in section 4 3 which has been certified EEx ia by an EC Notified Body The beacon may be controlled by turning the galvanic isolator on and off or by a mechanically activated switch on the hazardous area side of the isolator Hazardous Area Safe Area Klaxon IS XN Galvanic Isolator Ar On Off Power Supply ov Fig 5 Basic circuit for use with a galvanic isolator The control arrangement will vary depending upon the isolator chosen The galvanic isolator must be able to supply an output of 30mA at about 16V 10 CABLE PARAMETERS The maximum permitted cable parameters are as specified on the certificate of the Zener barrier or galvanic isolator that has been selected for the installation Normally the limits are not restrictive but care should be taken not to exceed a capacitive limit of 83nF for IIC installations when very long cables are used 11 BEACON FLASH RATE The Syrex IS XN can be set to two flash rates 1 double flash per second 1Hz slow rate or two double flashes per second 2Hz fast rate The flash rate is selected by the position of the pin header next to the input terminal block see fig 1 12 MAINTENANCE The beacon should be regularly inspected to ensure that it has not been damaged Frequency of inspection
9. sh rates one double Pa yy flash per second and two double flashes per second The 4 U ee di oat X ee flash rate is selected by setting an internal pin header The eae Wey ME Sane COMANS One ot MOTS unit is factory set to produce two double flashes per second special conditions for safe use Those installing or inspecting the equipment should refer to this section 3 SUPPLY VOLTAGE of the certificate The Syrex IS XN beacon has been designed to operate in a 5 The equipment has not been assessed as a safety hazardous area via a 28V 300 ohm ATEX certified Zener related device as referred to by Directive 94 9 EC barrier or galvanic isolator The beacon may be tested or Annex II clause 1 5 ae oe Sion E os la la ee 6 Installation of this equipment shall be carried out by limit will function and the brightness may be reduced The rare nen sk in accordance with the beacon should not be continuously operated without a barrier appre Cee OL pases or isolator with a supply voltage greater than 16V 7 iee pe equipment se only ii out by e manufacturer or in accordance wi e applicable code of practice 4 INTRINSIC SAFETY CERTIFICATION 8 The certification of this equipment relies on the 4 1 ATEX certificate The Syrex IS XN beacon complies with the following standards EN50014 1997 A1 and A2 EN50020 2002 EN50284 1999 Ex IMG EEx ia IIC T4 40 C lt Ta lt 60 C x J The EC Type Examination Certificate SIRA 05ATEX2269X has
Download Pdf Manuals
Related Search