Eaton XB10 Technical Manual

1Xenon b e a c o n - Xb10 englishXenon beacon - Xb10 TM102.L May 2022 www.eaton.com1.0 IntroductionThese compact and lightweight 10 & 15 joule beaconshave been designed for use in potentially explosiveatmospheres and harsh environmental conditions.The beacon housing, including the flamepaths, ismanufactured completely from a UV stable glassreinforced polyester which is ideally suited for useoffshore and onshore, where light weight combined withcorrosion resistance is required.Stainless steel screws and mounting bracket areincorporated ensuring a totally corrosion free unit.An additional body clamp is available for highvibration environments.2.0 InstallationGeneralWhen installing and operating explosion-protectedequipment, requirements for selection, installationand operation should be referred to e.g. IEE WiringRegulations and the ‘National Electrical Code’ in NorthAmerica. Additional national and/or local requirementsmay apply.Ensure that all nuts, bolts and fixings are secure.Ensure that only the correct listed or certified stoppingplugs are used to blank off unused gland entry points andthat the NEMA/IP rating of the unit is maintained. MEDCrecommend the use of a sealing compound such asHYLOMAR PL32 on the threads of glands and stoppingplugs in order to maintain the IP rating of the unit.The beacon is mounted via the 3 off Ø9mm mountingholes in the standard L-shaped bracket fixed to the base ofthe unit. The holes have been designed to accept an M8screw or bolt.MEDC recommend the use of stainless steel fixings.Note that if the beacon is to be used in high amplitudevibration applications, a secondary restraint would beadvisable. Please contact MEDC for details.Cable terminationCAUTION: Before removing the cover assembly,ensure that the power to the unit is isolated.GeneralCable termination should be in accordance withspecifications applying to the required application. MEDCrecommends that all cables and cores should be correctlyidentified. Please refer to the wiring diagram providedwith the product.Ensure that only the correct listed or certified cableglands are used and that the assembly is shrouded andcorrectly earthed.All cable glands should be of an equivalent NEMA/IPrating to that of the beacon and integrated with the unitsuch that this rating is maintained.The internal earth terminal, where fitted, must be usedfor the equipment grounding connection and the externalterminal is for a supplementary bonding connectionwhere local codes or authorities permit or require sucha connection.Ensure there is not too much slack of cable cores withinthe unit due to space limitations.Exd unitUnscrew the set screw in the cover assembly one fullturn (2.0mm A/F hexagon key). Carefully unscrew andremove the cover assembly (using a 120mm hook wrenchif required). Once the cover assembly has been removed,slide the PCB assembly out of the unit until the terminalsclear the enclosure body.After cable termination has been completed, the PCB canbe fully inserted into the enclosure, ensuring the spaceron the bottom of the PCB snaps into the retaining clip onthe boss inside the enclosure base. Be aware of correctPCB orientation, illustrated by the label adhered to theinside wall of the enclosure body.To replace the cover, use the same procedure as abovebut in reverse manner, ensuring the O-ring is in goodcondition and fitted in the correct location at the top ofthe cover threads. Ensure the cover is screwed downtightly and that there is no damage to the thread surfacesor mating faces of the cover and enclosure. There shouldbe a maximum gap of 0.2mm between the faces of thecover and enclosure to ensure correct o-ring compression.Exde unitUnscrew and remove the 2 off M5 screws (4.0mm A/Fhexagon key) and lift the Exe cover away from the base ofthe unit.Terminate the field wiring as shown on the wiring diagramsupplied with the unit.Not more than one single or multiple strand lead shall beconnected into either side of any terminal, unless multipleconductors have been joined in a suitable manner, e.g.two conductors into a single insulated crimped bootlace ferrule.Leads connected to the terminals shall be insulated forthe appropriate voltage and this insulation shall extend towithin 1mm of the metal of the terminal throat.All terminal screws, used and unused, shall be tighteneddown to between 0.5Nm and 0.6Nm. Conductivemetalwork (inc. cable glands) must be a minimum of5mm away from the terminals After cable terminationhas been completed, replace the Exe cover onto theenclosure, ensuring there is no damage to the matingfaces and that the O-ring is correctly seated in its grooveto maintain the IP rating of the unit. Replace and tightenthe 2 off M5 cover screws (4.0mm A/F hexagon key).DO NOT over tighten the cover screws as this may causedamage to the unit.To maintain the IP rating of the unit, the recommendedtorque on the cover screws is between 2.5 – 3.0Nm.