Eaton Crouse-hinds Series Instruction Sheet

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MTL GIR6000replacement modulesIndividual sensor, pump & filter modulesNovember 2016INS MTL GIR6000 Rev 2Instruction sheetMTL gas analysers & systemsEaton Electric Limited,Great Marlings, Butterfield, LutonBeds, LU2 8DL, UK.Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283E-mail: mtlenquiry@eaton.comwww.mtl-inst.com© 2016 EatonAll Rights ReservedPublication No. INS MTL GIR6000 Rev 2November 20161The given data is only intended as a productdescription and should not be regarded as a legalwarranty of properties or guarantee. In the interestof further technical developments, we reserve theright to make design changes.EUROPE (EMEA):+44 (0)1582 723633mtlenquiry@eaton.comTHE AMERICAS:+1 800 835 7075mtl-us-info@eaton.comASIA-PACIFIC:+65 6 645 9888sales.mtlsing@eaton.comIntroductionModular Gas Sensors are the key feature of the MTL GIR6000Biogas Analyser design. They are designed to be replaceable,on-site, with minimal interruption to the operation of theinstrument, given that the location of the instrument is in arecognised hazardous area.In addition to the main Gas Sensor modules there are three othermodule types, namely, the Pump module, the Filter moduleand the Link module. This document describes the replacementprocess for any of these module types.CAUTIONREAD THE SAFETY INFORMATION OVERLEAF!Do not begin work until you have read and understood theinformation provided there.These instructions should be read in conjunction with theInstruction Manual – INM MTL GIR6000.Initial instrument shutdownTo add or change any replaceable module, it is important tofollow the procedure described here.1. Isolate the sample gas inlet supply - using the local manualisolation valve.2. Disconnect the sample gas inlet pipe from the analyser.WARNING!Failure to isolate the sample gas supply pipebefore disconnection may result in toxicgas escaping.3. Leave the analyser running for 5 minutes (to purge airthrough system)NOTEPurging the gas analyser will result in gas readings falling tozero, which may generate alarms.4. Power down the analyser using the external AC powerisolation switch.WARNING!Failure to shut down the MTL GIR6000before replacing a module may result in anexplosion risk.5. Open the outer door.Module removal and replacementCAUTIONIt is advised that any person handling an unpluggedmodule should wear an ESD grounding wrist strap toprevent inadvertent static damage to any of the module’selectrical components. The ESD COMMON GROUND jacksocket provided at the lower left corner of the inner doormay be used if the enclosure is provided with a suitableground connection.Each module is held in place with two threaded bolts at the top andbottom of its front panel. The modules are keyed and will only fit inthe door panel at the appropriate location. A Phillips or flat-bladedscrewdriver is required to loosen the bolts after which they can befreed by hand.The module should be drawn straight out of the panel (seephotograph), which will disconnect both the gas and electricalconnections at the rear of the module automatically.Additional effort will be required to remove a Filter Modulebecause of the additional O-rings it uses. Remove the Moduleby exerting equal force on the both the handle and top bolt.Module removal Module insertion

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