Emerson 3051N manual Detailed Setup, Diagnostics Service

Page 24

Rosemount 3051N

Reference Manual

00809-0100-4808, Rev CA June 2008

Damping

HART Comm.

1, 3, 6

 

 

LCD Meter Options

HART Comm.

1, 4, 3, 4

 

 

The process variable (PV) Damp command changes the response time of the transmitter to smooth variations in output readings caused by rapid changes in input. Determine the appropriate damping setting based on the necessary response time, signal stability, and other requirements of the of loop dynamics of your system. The default damping value is 0.4 seconds,(1) and can be reset to any of eleven pre-configured, nominal damping values between 0 and 25.6 seconds.

The Meter Options command allows you to customize the LCD meter for use in your application. You can configure the meter to display the

following information:

•Engineering Units

•Percent of Range

•User-Configurable LCD Scale

•Alternating between any two of the above

The user-configurable scale is a feature that enables you to configure the LCD meter to a custom scale using a HART Communicator. With this feature you can define the decimal point position, the upper range value, the lower range value, the engineering units, and the transfer function. Refer to “Custom Meter Configuration” in Section 6 for complete configuration information.

DETAILED SETUP

Local Span and Zero Control (Local Keys)

HART Comm.

1, 4, 4, 1, 7

 

 

Sensor Temperature Output Unit Selection

HART Comm.

1, 4, 1, 2, 2

 

 

DIAGNOSTICS AND

SERVICE

The Local keys command allows software control over the use of the local span and zero adjustments. To enable or disable the span and zero adjustment buttons on your transmitter, perform the fast key sequence at left.

NOTE

Disabling the local keys does not disable all transmitter configuration changes. With the local keys disabled, you can still make changes to the transmitter configuration—including range values—using a HART Communicator.

The Sensor Temperature Output Unit Selection command selects between Celsius and Fahrenheit units for output of the sensor temperature. The sensor temperature output is accessible via HART only.

The diagnostics and service functions listed here are primarily for use after you install the transmitter in the field. The transmitter test feature is designed to verify that the transmitter is operating properly, and can be performed either on the bench or in the field. The loop test feature is designed to verify proper loop wiring and transmitter output, and should only be performed after you install the transmitter.

(1)Rosemount 3051ND0 default damping is 3.2 seconds. Rosemount 3051ND1, with calibra- tions below 2.5 inH2O (0,62 kPa), have damping set at 3.2 seconds.

2-12

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Contents Reference Manual Important Notice -- Errata Rosemount 3051N Return of Material Changes from June 2006 to June OldChanges Rosemount 3051N Table of Contents Installation TroubleshootingSpecifications Reference Data Options Appendix aHart Communicator Glossary Index Using this Manual Section IntroductionRosemount 3051N Overview Safety Messages Transmitter FunctionsAlarm Level Verification TransmitterSecurity Configuring Transmitter Alarm and Security Jumper Procedure Physical Removal Local Zero and Span Local KeysElectronics Board Setting the Loop to Manual Wiring Diagrams Bench Hook-up Wiring Diagrams Field Hook-up Review Configuration Data Check OutputProcess Variables Sensor Temperature Basic SetupSet Process Variable Units Set OutputRerange Rerange with a Communicator OnlyRerange with a Pressure Input Source and a Communicator Span and Zero Adjustment Buttons Detailed Setup Diagnostics ServiceTransmitter Test Loop TestCalibration Transmitter Bench Calibration Tasks Field Calibration Tasks Configure the Analog Output Parameters Calibration OverviewSensor Trim URVZero Trim Typical Zero vs Non-zero-Based Application IllustrationsFull Trim Digital Trim Connection Drawing 4-20 mA TransmittersDigital-to-Analog Trim Using Other Scale Recall Factory Trim Recall Factory Trim- Sensor TrimRecall Factory Trim- Analog Output Analog Output TrimZero Effect HTc = URV + S URV Ps Rosemount 3051N Section Installation Rosemount 3051N Typical Installation Flowchart General Considerations Special Draft Range ConsiderationsMechanical Considerations 156 181 16 x 11/4 Bolts for Mounting to 54.1 Transmitter 120 127 66.8 Traditional Flange Option Code H2 Dimensional Drawing Mounting Rosemount 3051N GAS or Liquid Service GAS Service Steam Service Process Connections Housing Rotation Power SupplyElectrical Considerations Wiring Power Supply Load LimitationsAccess Requirements Cover Installation Grounding the Transmitter CaseEnvironmental Considerations Troubleshooting Symptom Corrective Actions Returning Rosemount Products and MaterialsNuclear Specifications SeismicModel Range Code Hydrostatic Test Pressure Performance Specifications Ambient Temperature Effect12Reference Accuracy DriftPower Supply Effect Load Effect Mounting Position Effect Overpressure Effect Static Pressure EffectRange Code Overpressure Effect Range Code Static Pressure Zero Effect1Functional Specifications ServiceTemperature Limits OutputSpan and Zero, Zero Elevation, Suppression Range Minimum Span Upper URL Lower LRLRange Code Minimum Time Constant Tc Including Dead Time Td Maximum Working Pressure12Static Pressure Limits Overpressure Limits Burst PressurePhysical Specifications Materials of Construction Option Code Description Add Ordering Information Configuration Information Housing Material Conduit Entry SizeMounting Bracket Options Meters optionalDate  On Rosemount 3051N Exploded View with Coplanar Process Flange Rosemount 3051N Rosemount 3051N Overview Safety Messages LCD Meter Section OptionsCustom Meter Configuration Installing the Meter Exploded View of the Rosemount 3051N with Optional LCD MeterRosemount 3051N Diagnostic Messages ErrorPress Limit Operation Mounting BracketsTraditional Flange H2 Transient Protection Terminal Block T1Transient Protection Terminal Block T1 Rosemount 3051N Introduction Safety Messages Appendix a Hart CommunicatorRosemount 3051N Online Menu Function Hart Fast Key Sequence Figure A-3. Rosemount Hart terminal access door Connections and HardwareFigure A-4. Bench Hook-up MA Transmitters Rosemount Communicator KeysAction Keys Function Keys Alphanumeric and Shift KeysData Entry Fast Key Sequences Fast Key Sequence Conventions Fast Key Sequence ExampleMenus Functions Main MenuOnline Menu Touch Alphanumeric Keys Multifunction LEDTouch Screen Multifunction LED Processing IndicationRosemount 3051N Diagnostic Messages Fast Key Sequences Hot Key optionsMessage Description Rosemount 3051N Uploadvariable Rosemount 3051N Rosemount 3051N Glossary Smart Family Index 00809-0100-4808, Rev CA June Security Page ¢00809-0100-4801V¤
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