Emerson Process Management CI-9110, 9110-00A Internal Access, Line Size, Venting, Body and Cover

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2.3.3 Line Size

For most installations 1/4 inch pipe or tubing is satisfactory. However, if the input or output lines run a great distance, the response lag time may become objectionable. In these instances the use of 3/8 inch tubing is recommended.

2.3.4 Venting

The user should note that the Remote Set Regulator bleeds a small amount of pressure into the atmosphere during operation. A 1/4 inch NPT vent is provided on the pressure regulator body for this purpose. The vent location is shown in Figure 2-3.

When air is used as the pressure source, the vent fitting may be allowed to bleed into the atmosphere. If fuel gas or other hazardous type gases are used as the pressure source for a Remote Set Regulator, the VENT port must be piped to a safe location.

** Warning **

Covers of Remote Set Regulators operating in hazardous areas should not be removed. If servicing is required, the environment should first be made safe or the supply power should be turned off, allowing the instrument to be discon- nected and removed to a safe area.

Figure 2-3 - Typical Pressure Connections

2.4 INTERNAL ACCESS

The subtopics that follow discuss the main mechanical and electrical assemblies that will be accessed during installation. They describe the method of removing and installing the cover, the use of the electrical conduit ports, and the installation precautions to be observed.

2.4.1 Body and Cover

The Remote Set Regulator is contained in a aluminum body with a gasketed screw-on cover as shown in Figure 2-2. Four raised lugs on the cover permit it to be loosened or tightened

Installation

2-4

CI-9110

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Contents Remote Set Regulator Model 9110-00A IMPORTANT! Read Instructions Before Starting Warranty Bristol Inc MailPhone Bristol Inc. Repair Authorization Form off-line completion Training Telephone Support Technical Questions 860 860 945-2213 FAXVisit our Site on the World Wide Web Training Courses Model 9110-00A Remote SET Regulator Supplemental Instructions Theory of Operation Product DescriptionAnalog Regulator Model Remote Set Regulator Block Diagram of Analog Type Regulator Guard Input Current OutputBlock Diagram of Raise/Lower Type Regulator Raise/Lower Regulator Model Data PlateModel Number Breakdown = Pneumatic Output = Mounting Arrangement Page Two-Inch Pipe Mounting GeneralMounting In-Line MountingPressure Connections General PipingRegulator Assembly Moisture in LinesVenting Internal AccessLine Size Body and CoverSafety Note Electrical Conduit PortPage Cradle Switches with Open Designation Using Option SwitchesSlide Switches with on Designation Analog Input Models Switch FunctionsRegulator Assembly Switch SW1 & SW2 Functions & Settings RAISE/LOWER Input ModelsContinuous Signal Incremental SignalSwitch SW1 1-5, Pulse Increments Input FilterStatic or Dynamic Guard Input Guard InputOutput Rate of Change Guard LogicSwitch SW2 2-5, Output Rate Of Change Analog Failure Modes Fail Hold & Fail ZeroFAIL-ZERO Mode Page Field Wiring Terminal Identification For Analog Input Models Terminal Identification For Raise/Lower ModelsAnalog Voltage Input with Guard Analog Current Input 4-20 mA with Guard RAISE/LOWER Inputs with GuardRaise/Lower & Guard Inputs from Relay Contacts DC Power Current Output to FSK Bi-State TransmitterOperating Notes Initial ChecksField Wiring CI-9110 Service Troubleshooting Hints Procedure Setting Output LimitsTest Setup General PrinciplesCalibration Test Setup Calibration PrecautionAnalog Test Setup Preliminary Calibration CheckCurrent Output Span & Load Detailed Calibration for Analog ModelFeedback Zero & Span Pressure Output CheckRaise/Lower Test Setup Detailed Calibration for RAISE/LOWER ModelPCB Reference Drawings CPU Board & Termination Board Reference TableAssembly, Analog Type CPU Board with Current Output Assembly, Raise/Lower Type CPU Board with Current Output Analog Input Model RAISE/LOWER Input ModelAccuracy RAISE/LOWER Models Analog OutputAccuracy Analog Models Stepper Drive MechanismEnvironmental Pressure Regulator AssemblyInstrument Enclosure Range Factory Calibrated withHumidity 10 to 95% over -20to +130 F -29to +55 Range Model 9110 Main Parts Parts Referenced in FigureRemote Set Regulator Actuator Unit Remote Set Regulator Actuator Unit Mounting Parts Remote Set Regulator Assembly Basic Parts Remote SET Regulator Basic PartsGuidelines for System Grounding Basic Ground Rod Installation Noise and Signal Errors General RecommendationsGrounding of Equipment Housing Transients and Interference Grounding of Transmitter Types of Earth Grounds AC Power Grounding System Sandy Soil Dry SoilRocky Soil Several DPCs Mounted in Metal Cabinet with Power Supply Following installation procedures applyGrounding for DPCs and Power Supplies Single Metal Cabinet Multiple DPC Cabinets Powered by Single Power Supply Elements of a Facility Ground System Multiple Clusters of DPC Cabinets Powered by Local Supplies ReferencesPage Remote Set Regulator Model 9110-00A