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Instruction ManualForm 5739February 2002IntroductionType 846 and Model 3311 Current-to-PressureTransducersContents5.TroubleshootingDiagnostic Features1.IntroductionStroke Port..........Scope of ManualRemote Pressure Reading(RPR)Description.....................Using the HART Communicator toSpecifications...................-2Read the RPR Signal2.InstallationUsing a Frequency Counter toRead the RPR Signal.............MountingIn-service Troubleshooting-3Pressure ConnectionsTroubleshooting in the ShopSupply PressureOutput Pressure2-56.MaintenanceElectrical Connections2-7Stroke Port.............................2-7Module Final AssemblyExhaust Port.....................2-8Removing the Module Final AssemblySignal Interruption...............2-8Replacing the Module Final Assembly6-3Electronic Circuit Board ..643.CalibrationOptional Remote Pressure Reading(RPR)Standard Performance:JumperFull Range Input,Direct Action3-1Range Jumper6-5Multirange Performance:Action .....6Full Range Input.Direct Action-2Removing the Electronic Circuit Board6-5Standard Performance:Product Change..........6-5Split Range Input,Direct Action3-3Replacing the Electronic Circuit Board664 to 12 mA Input Signal3-3Pilot/Actuator Assembly...................6-612 to 20 mA Input SignalB-3Action...6-6Standard Performance:Removing the Pilot/Actuator Assembly66Full Range Input,Reverse Action-3Replacing the Pilot/Actuator AssemblyMultirange Performance:Module Subassembly.....................Full Range Input,Reverse Action-3Terminal CompartmentStandard Performance:Exhaust and Stroke Port Screens6-8Split Range Input,Reverse Action3 44 to 12 mA Input Signal...............7.Parts List12 to 20 mA Input Signal10 to 50 mA Input Signal3-58.Loop SchematicsTransporting the Module Final Assembly3-54.Principle of OperationElectronic Circuit.......................41Magnetic Actuator.....................Pilot Stage..……Booster StageFISHEREMERSONwww.Fisher.comProcess Management
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