Determining calibration frequency | Emerson 00809-0100-4102 specification

Reference Manual	Section 5: Operation and Maintenance
00809-0100-4102, Rev AA	May 2013

For transmitters that are field installed, the manifolds discussed in “Rosemount 304, 305 and 306 integral manifolds” on page 47 allow the differential transmitter to be zeroed using the zero trim function. Both 3-valve and 5-valve manifolds are discussed. This field calibration will eliminate any pressure offsets caused by mounting effects (head effect of the oil fill) and static pressure effects of the process.

Determine the necessary trims with the following steps.

1.Apply Pressure

2.Check digital pressure, if the digital pressure does not match the applied pressure, perform a digital zero trim. See “Sensor Trim” on page 68.

Trimming with configuration buttons

Local configuration buttons are buttons located inside the housing of the transmitter. To access the buttons, remove the housing cover.

Digital Zero Trim (DZ): Used for performing a sensor zero trim. See “Recommended Calibration Tasks” on page 64 for trim instructions.

Figure 5-1shows the location of the digital zero button.

Figure 5-1. Digital zero button location

A

ZeroTrim Digital

A. Digital zero button

5.3.2Determining calibration frequency

Calibration frequency can vary greatly depending on the application, performance requirements, and process conditions. Use the following procedure to determine calibration frequency that meets the needs of your application.

1.Determine the performance required for your application.

2.Determine the operating conditions.

3.Calculate the Total Probable Error (TPE).

4.Calculate the stability per month.

5.Calculate the calibration frequency.

Operation and maintenance

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Emerson 00809-0100-4102 manual Determining calibration frequency, Trimming with configuration buttons

Contents

Rosemount 2051 Wireless Pressure Transmitters Page Reference Manual Rosemount 2051 Wireless Pressure, Flow, and Level Solutions Explosions could result in death or serious injury Iii Reference Manual Contents Table of Contents Reference Manual Installation Commissioning Operation and maintenanceTroubleshooting Appendix B Product Certifications Appendix a Specifications Reference Data Appendix D Network design best practices Appendix C Field Communicator Menu Trees and Fast Keys Table of Contents Reference Manual Models covered Using this manualRosemount 2051C Coplanar Pressure Transmitter Rosemount 2051T in-line Pressure Transmitter Introduction Reference Manual Rosemount 2051L Level TransmitterRosemount 2051CF Flowmeters WirelessHART installation flowchart WirelessHART installation flowchart LCD Display Transmitter overview Wireless considerations Considerations before transmitter installationPower up sequence Antenna position Electrical Mechanical Environmental Service supportTemperature effects Product Recycling/Disposal Overview Safety messages Configuration Reference Manual Required bench top configurationAMS Wireless Configurator Connection diagrams Basic setupSet device tag Bench hook-up Select 1 Guided Setup Select 3 Join Device to Network Configure update rateSelect 1 Guided Setup Select 4 Configure Update Rate Join device to network Remove Power Module Configure for PressureSelect 2 Manual Setup Select 2 Pressure Set process variable units Re-mapping using AMS Device Manager Re-mapping using a Field CommunicatorSet range points Variable Mapping Set transmitter percent of range transfer function Setting transmitter output with a Field CommunicatorSetting transmitter output with AMS Device Manager Configuring scaled variable Configure for Level and FlowConfiguring Scaled Variable using a Field Communicator Configuring Scaled Variable using AMS Device Manager DP Flow example Scaled Variable Configuration for Tank ApplicationDP Level Example Scaled Variable Configuration for Flow Application Set range points Select 2 Manual Setup Select 9 Device Information Review configuration dataReview pressure information Review device information Review operating parameters Review radio informationSelect 7 Device Information Select 2 Variables Configuring LCD display with a Field Communicator Configuring the LCD displayConfiguring LCD display with AMS Device Manager Click Manual Setup, select the Display tab Configure process alerts Detailed transmitter setupSelect 1 Guided Setup Damping Write protect Diagnostics and service Join status Device reset Number of available neighbors Field Communicator Saving, Recalling, and Cloning Configuration DataAdvanced Functions for Hart Protocol AMS creating a Reusable Copy AMS Applying a User Configuration Section Installation Installation Reference Manual Considerations Installation considerationsReference Manual Installation Mechanical considerations Steam serviceEnvironmental considerations Internal antenna position Draft range considerations Installation Flowchart Reference side filtering Reducing process noiseOutput damping Consider housing rotation Installation proceduresPower Module side of electronics housing Circuit side of electronics housing Mount the transmitter Environmental seal for housingMounting brackets Mounting brackets Mounting bracket option code B4 Flange bolts Bolt Material Initial Torque Value Final Torque Value Bolt Installation Torque Values Description Qty Size Panel mounting bracket option codes B2 and B8 Best practices Impulse piping Liquid Flow Measurement Mounting Requirements Coplanar or traditional process connection Process connectionsFlange adapters Drain/vent valves Inline gage transmitter orientation Inline process connection 13. Power Module Power Module installation Installing the LCD display 14. Optional LCD Display Rosemount 304, 305 and 306 integral manifolds 15. Integral Manifold Designs Rosemount 305 Integral Manifold installation procedure 16. Bolt tightening pattern Rosemount 306 Integral Manifold installation procedure Manifold operation Rosemount 304 Conventional Manifold installation procedure Transmitter to service Configuration for zeroingTo zero the 2051, close Block valve to the low Pressure downstream side Transmitter first Test Transmitter. The manifold is Open the equalize valve on Low pressure Downstream sideNow in the proper Close the equalize valve on High pressure upstream Side Installation Section Commissioning Reference Manual Local Display Viewing network statusVerifying operation Function Key Sequence Menu Items Smart Wireless Gateway Device Manager Smart Wireless Gateway Explorer Smart Wireless Gateway Network Settings Using the Field Communicator Rosemount 2051 Wireless Fast Key Sequence Configuring transmitter securityHart lock Reference Manual Commissioning Configuration Button lock Configuring Hart Lock using Field CommunicatorConfiguring Hart Lock using AMS Device Manager Calibration overview Operation and maintenance Determining necessary Sensor Trims Operation and Maintenance Reference ManualRecommended Calibration Tasks Transmitter Bench Calibration Tasks Field Calibration Tasks Determining calibration frequency Trimming with configuration buttons Calculate calibration frequency Sensor Trim Overview Trim the pressure signalExample HT = URV S/100 x P/1000 x LRV Sensor Trim example Sensor Trim Performing a Sensor Trim with a Field Communicator Select 5 Maintenance Select 1 Pressure CalibrationPerforming a Sensor Trim with AMS Device Manager Performing a Digital Zero Trim option DZ Compensating for Line Pressure Range 4 and Range Recall Factory Trim-Sensor TrimLine Pressure Effect Range 2 and Range Zero Effect LT = 500 + 0.01/10005001200 506 inH2O 1.26 bar Startup Screen Sequence LCD Screen Messages S R 13 0 Diagnostic Button Screen Sequence T w k K n w n Network Diagnostic Status Screens C H N G Operation and maintenance I l u r Device Diagnostic Screens C d e D i o I l u r N f g R n Troubleshooting Device Status Description Recommended Action Troubleshooting Reference ManualRosemount 2051 Wireless Device Status Information Check process for possible saturation condition Reference Manual Troubleshooting Check the buttons for obstructions Wireless Network Troubleshooting Rosemount 2051 Wireless TroubleshootingSymptom Recommended Actions Removing from service Digital output Performance SpecificationsConformance to specification ±3σ Sigma Total Performance Reference Accuracy1Appendix a Reference Data Reference Manual Models Standard Line Pressure Effect per 1000 psi 6,9 MPa1 Long Term StabilityDynamic Performance Ambient Temperature Effect per 50F 28C ServiceMounting Position Effects Vibration Effect Range and Sensor Limits Wireless Self-Organizing Networks Overpressure limits Burst pressure limits Temperature limitsStatic pressure limit Process Temperature Limits Volumetric DisplacementHumidity Limits 2051C Coplanar Process-Wetted parts Physical specificationsElectrical connections Non-Wetted Parts Rosemount 2051L Process Wetted Parts Sensor Module Fill Fluid Table A-2. Transmitter weights without options Shipping Weights for 2051 Wireless Pressure TransmitterTable A-3 L weights without options Table A-4. Transmitter option weights Dimensional Drawings Pipe Process Lower Housing G Class Size Side F NPT Table A-5 L Dimensional SpecificationsOutside Extension Pipe Diameter Gasket Class Size Ordering Information Wireless Transmit Rate, Operating Frequency and Protocol Housing Material Conduit Entry SizeAntenna and SmartPower Manifold Assembly59 All-Welded Seal Assemblies for high vacuum applications9 Seal Assemblies9Mounting Bracket Product Certifications Software Configuration Hardware AdjustmentsPressure Testing Cleaning Process Area Max Static Line Pressure RC1/4 RC1/2 Process ConnectionSurface Finish Toolkit Total System Performance Reports Options Wireless Sensor Module Zero/Span AdjustmentCalibration Certification Process Area8 Typical Model Number 2051T G 5 X 2A 2 1 P WA3 WP5 B4 M5 Mounting Flange Size, Rating, Material High Side ModelCode Process Connection Size Material Extension Length Low Pressure Side Flange Configuration Adapter Material Traceability Certification Standard Bolting Material StandardCalibration Certification Standard Software Configuration Standard Hardware Adjustments StandardToolkit Total System Performance Reports Standard Ring Material Number Size NPT Standard Pipe I.D. Range Model Product DescriptionLine Size Piping Orientation Pipe Material / Mounting Assembly MaterialAnnubar Type Sensor Material Transmitter Housing Material Conduit Entry Size Temperature MeasurementOpposite Side Support or Packing Gland Isolation Valve for Flo-Tap Models QC1 Fluid and O-ring Options Standard Primary Element Type Primary Element TechnologyMaterial Type Transmitter Housing Material ANSI/ASME B31.1 ANSI/ASME B31.3 ANSI/ASME B31.8 Process Connection Body MaterialOrifice Plate Material Bore Size Option Differential Pressure Ranges Options LCD Display Hardware Adjustments Standard Options Output information Configuration buttonsDisplay and interface options Bolts for flanges and adapters Rosemount 2051C Traditional Flange bracket options Spare parts Approved manufacturing locations Wireless CertificationsEuropean directive information Telecommunication compliance North American certifications Ordinary location certification for FMCSA Canadian Standards Association European certifications 注意！ 134 Field Communicator menu trees Appendix C Field Communicator Menu Trees and Fast Keys Appendix C Field Communicator Menu Trees Reference Manual Guided Setup 137 138 Effective range Appendix D Network design best practices Appendix D Network design best practices Appendix D Network design best practices Reference ManualPage Latin America