Damping, Low Flow Cutoff for PV4 | Honeywell SMV 3000 guide

6.9 FlowConf Configuration - PV4, Continued

Damping

ATTENTION

Adjust the damping time constant for flow measurement (PV4) to reduce the output noise. We suggest that you set the damping to the smallest value that is reasonable for the process.

The damping values (in seconds) for PV4 are:

0.00d, 0.5, 1.0, 2.0, 3.0, 4.0, 5.0, 10.0, 50.0 and100.0

d Factory setting.

The electrical noise effect on the output signal is partially related to the turndown ratio of the transmitter. As the turndown ratio increases, the peak-to-peak noise on the output signal increases. See the Damping paragraphs in subsection 6.6 for a formula to find the turndown ratio using the pressure range information for your transmitter.

Low Flow Cutoff for PV4

For calculated flow rate (PV4), set low and high cutoff limits between 0 and 30% of Upper Range Limit for PV4 in engineering units.

•Low Flow Cutoff: Low (0.0 = default) High (0.0 = default)

Background

ATTENTION

You can set low and high low flow cutoff limits for the transmitter output based on the calculated variable PV4. The transmitter will clamp the current output at zero percent flow when the flow rate reaches the configured low limit and will keep the output at zero percent until the flow rate rises to the configured high limit. This helps avoid errors caused by flow pulsations in range values close to zero. Note that you configure limit values in selected engineering units between 0 to 30% of the upper range limit for PV4.

Figure 25 gives a graphic representation of the low flow cutoff action for sample low and high limits in engineering units of liters per minute.

If the flow LRV is not zero, the low flow cutoff output value will be calculated on the LRV and will not be 0 %.

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Honeywell SMV 3000 user manual Damping, Low Flow Cutoff for PV4

Contents

SMV Copyright, Notices, and Trademarks Copyright 1999 by Honeywell Inc Revision 0 January 18 Conventions and Symbol Definitions About This Publication SMV 3000 Transmitter User’s Manual Table of Contents 103 111119 137 Figures and Tables 100 Table A-9 Acronyms Parameters References Technical Assistance Section Contents About This Section  Overview First Time Users Only IntroductionThis section includes these topics Topic CE Conformity Europe About Conformity SMV 3000 Smart Multivariable Transmitters Meter Body Factory Characterization Data Electronics Housing Transmitter adjustments SMV Operating Modes Smartline Configuration Toolkit SCT Smartline Configuration Toolkit Using the SFC with the SMV Smart Field Communicator SFCAbout SFC Communications Smart Field Communicator SFC Transmitter Order Order Components Smart Field Communicator Model STS103 Operating Guide  Quick Start Reference Introduction Getting SMV 3000 Transmitter On-Line Quickly Task Description Reference Section  Preinstallation Considerations Introduction Considerations for SMV 3000 Transmitter Electronic pressure transmittersEvaluate conditions Operating Temperature Limits RTD requirements Thermocouple requirementsType Rated Range Limits Standard Considerations for SCT SCT 3000 Requirements SMV 3000 Transmitter User’s Manual  Installation Introduction Mounting SMV 3000 Transmitter Action If you are using an… Then… Mounting SMV 3000 Transmitter to a BracketBracket mounting Step Step Action Leveling a Transmitter with a Small Absolute Pressure Span Piping SMV 3000 Transmitter Flange for manifolds on 2, 2-1/8, or 2-1/4 inch centersPressure lines to the transmitter Suggested mounting location for the transmitter depends on Process to be measured. shows the transmitter located aboveDrain away from the transmitter Transmitter location Piping SMV 3000 Transmitter General piping guidelines Installing flange adapter Installing 1/2 inch NPT Flange Adapter Installing RTD or Thermocouple Considerations CE Conformity Special Conditions Europe Wiring SMV 3000 Transmitter CE Conformity Special Conditions Europe Summary For the given probe type PolarityRefer to .2 CE Conformity Europe Notice for special Conditions Optional meter Wiring connections TPS/TDC 3000 reference Wiring connections Step If input is from … Then… RTD Input Wiring Connections AWG American Wire Gauge or KCM Kilo Circular Mils bare or Green covered wireOptional lightning protection Ground Connection for Lightning Protection Conduit seals and Hazardous Location Installations  Getting Started Introduction Off-line Versus On- line SMV Configuration Off-line Configuration Procedures SCT Hardware ConnectionsEstablishing Communications SCT 3000 On-line Connections to Establishing On-line Communications with the SMV Making On-line Connections to Checking Communication Mode Firmware Version DE Communication ModeChanging Communication Mode Making Initial Checks Write Protect Option Want to change itModule for SMV 3000 transmitters Write Protect Option SMV 3000 Transmitter User’s Manual  Configuration Introduction To Print On-line Manual and Help Topics Changing database parameters configuration About ConfigurationConfiguration Summary Overview Overview Configuring the SMV 3000 with The SCT Using the SCT for SMV 3000 ConfigurationSMV Process Variable SCT Template Tab Card Device Configuration PV1 PriorityBackground Device Data Fields General Configuration PV Type Selecting PVs for BroadcastIf You Select PV Type These PVs are Broadcast to Control System To represent the output Background Analog Output SelectionDetermine which PV is desired as SMV Output Then Select… Line Filter Background DPConf Configuration PV1 Engineering UnitsEngineering Unit Meaning LRV and URV PV1 DP Range Values Output Conformity Background About Square Root Output About Square Root Output Square Root Dropout Flow 0utput Full MA dc ScaleDifferential Pressure % Full Scale Damping Background AP/GPConf Configuration PV2 Absolute PressureSTG170 Gauge Pressure Flow calculation Pressure readingPV2 AP/GP or SP Range Values LRV and URV TempConf Configuration PV3 Selecting PV3 Engineering UnitsEngineering Unit Meaning Cold Junction Compensation Background Output Linearization Sensor Type Rated Temperature Range Limits Sensor Type Fault Detect Background PV3 Temperature Range Values LRV and URV Typical RTD Range Configuration Current Range Settings Range Settings After LRV is Changed to Zero Damping Background FlowConf Configuration PV4 Pre-programmed Mass Flow Engineering Units for PV4 PV4 Engineering Lower Range Limit LRL and Upper Range Limit URL identify PV4 Flow Upper Range Limit URL Range Values LRV and URVAbout URL and LRL Typical Volumetric Flow Range Setting Values LRV and URV set the desired zero and span points for yourAbout LRV and URV M3/h Damping Low Flow Cutoff for PV4 Graphic Representation of Sample Low Flow Cutoff Action Using Custom Engineering Units Using Custom Units for PV4 Flow Measurement Flow Compensation Wizard Description Standard EquationDynamic Compensation Equation Primary Element Dynamic compensation flow equation for mass applications is Flow = N Saving, Downloading and Printing a Configuration File Saving, Downloading Printing a Configuration File Verifying Flow Configuration Verify Flow Configuration  Startup Introduction About Startup Step Procedures Startup TasksBAD PV displayed on TPS/TDC systems Background Analog Output Mode Procedure Running Output Check Procedure Step Output Check Procedure for SMV Transmitters in DE mode Output Check for SMV Transmitters in DE Mode FlowOutCal, for PV4 Using Transmitter to Simulate PV Input Using SMV Transmitter in Input Mode APInCal, for PV2 Procedure SMV Model SMA125 Start-up ProcedureStarting Up Transmitter Starting Up Transmitter SMV Draft Range Start-up Procedure Starting Up Transmitter SCT Black  Operation Introduction Accessing Operation Data Summary ProcedureIf you want to view… Select the SCT If you want to view… Select the SCT Window or Tab Card TempConf Changing Default Failsafe Direction Background Analog and DE Mode DifferencesJumper on the main PWA of the electronics module Cutting Failsafe Jumper Main PWA Saving and Restoring SMV Configuration Database Saving and Restoring a Database  Maintenance Introduction Section ContentsTopic See Preventive Maintenance Maintenance Routines And Schedules Inspecting and Cleaning Barrier Diaphragms Background Procedure 22519 Prom number using the SCT See .2 in this manual for details Replacing Electronics Module or PromPlug-in Prom on the main PWA is uniquely characterized to Required Replacing Electronics Module or Prom 104 SMV 3000 Transmitter User’s Manual If you are replacing the… Then… Main PCB If the new electronics module has the write protect Main PCB Replacing Meter Body Center Section Center section is supplied with a new matching PromMatching Prom Replacing Meter Body Center Section SMV 3000 Transmitter User’s Manual 109 22519  Calibration Introduction About Calibration Using the SFC or SCT for Calibration Test Equipment Required Calibrating Analog Output Signal Using the SFC Calibrating PV1 and PV2 Range Values Typical PV1 or PV2 Range Calibration Hookup Resetting Calibration About Reset Accuracy for PV1 and PV2 118 SMV 3000 Transmitter User’s Manual  Troubleshooting Introduction Diagnostics Troubleshooting Tools Troubleshooting Using the SCT You can clear fault conditions Diagnostic Messages Diagnostic Messages Diagnostic Message Table Headings Critical Status Diagnostic Message Table Diagnostic Messages 124 SMV 3000 Transmitter User’s Manual SMV 3000 Transmitter User’s Manual 125 Non-Critical Status Diagnostic Message Table Status TAG ID.# Corrects RST PV1 SMV 3000 Transmitter User’s Manual 127 128 SMV 3000 Transmitter User’s Manual SMV 3000 Transmitter User’s Manual 129 130 SMV 3000 Transmitter User’s Manual Non-Critical Status Diagnostic Message Table Communication Status Message Table TAG no Illegal Response URV 3 . TAG ID Invalid Request SMV 3000 Transmitter User’s Manual 133 Status TAG ID Wire RTD PV3 Informational Status Message Table SFC Diagnostic Message Table Page  Parts List Replacement Parts Part Identification 138 SMV 3000 Transmitter User’s Manual SMV 3000 Electronics Housing Key Part Number Description Quantity Per Unit Parts Identification for Callouts in Figure KeyQuantity Per Kit SMV 3000 Terminal Block Assembly Key Part Number SMV 3000 Meter Body Description Quantity Per Unit Quantity Per Unit Flange Adapter Kits two heads K10 K11 Process Head Kits one head with Viton head gasket K10 K13 Summary of Recommended Spare Parts Part Number Description ReferenceSpares for Wiring Diagrams SMV Multivariable Transmitter Wiring Diagrams forUsing Mounting Bracket Type See Drawing Number 148 SMV 3000 Transmitter User’s Manual Appendix Contents Appendix a PM/APM/HPM SMV 3000 Integration OverviewThis appendix includes these topics Purpose of this appendix Description Definition Communications Link Compatibility Diagram Typical Integration Hierarchy DE/ DigitalSMV3000 Transmitter Data Exchange Functions Exchange of data over the bi-directional data path betweenSMV 3000 transmitter and the PM/APM/HPM is based on imaging Stimv IOP for each transmitter PV. This is done by mapping Points per Stimv IOP SMV 3000 Transmitters Figure A-4 AI Point for Each Transmitter Input Four Points Per Transmitter Broadcast using the SCT Application. Table A-1 shows what PVs represent in the SMVSee Deconf parameter in subsection A.5 and Deconf Changes SMV PV Number About Database Broadcast Installation Other Smartline transmitter. See in the PM/APM SmartlineMounting Assumptions Connection Rule Figure A-5 Connection Rule Example Configuration About Configuration Getting StartedBuilding Points Point Building Rules PED Entries Eudesc ParameterIf Process Variable Number is… Then base engineering unit is … Listed in Table A-5 Table A-5 PV Characterization Selections for SMV 3000 PVsSo the value is the same regardless of EU Mind, that the URL, LRL, URV, and LRV are displayed in base If PED Deconf entry is … URL ParameterThen URL is … If Process Variable Number is… PV1 or PV2 Then Damping Value can be …Piuotdcf Parameter Cjtact Parameter After Point is Built Operation Notes Generic Operations Detail Display DifferenceDatabase Mismatch Parameters Figure A-7 Example of Deconf Download Error Message Deconf Changes Table A-10 Conversion Values for PV3 Temperature Engineering Unit Conversion for PV4 Conversion MultiplierConversion Offset Table A-12 Conversion Values for PV4 as Mass Flow Rate Conversion Offset Secondary Variable Reference Problem Status MessagesMessage Corrective Action 170 SMV 3000 Transmitter User’s Manual Appendix B  SMV 3000 Configuration Record Sheet Appendix B- Configuration Record Sheet 1b. Static Pressure PV2 Configuration Section SMV 3000 Transmitter User’s Manual 173 174 SMV 3000 Transmitter User’s Manual Appendix C -PV4 Flow Variable Equations Overview Reference Data Sources Standard Flow Equation Example Air Through a Venturi 178 SMV 3000 Transmitter User’s Manual Example Superheated Steam Using an Averaging Pitot Tube Standard Flow Equation Dynamic Compensation Flow Equation Table C-3 Liquid Propane Configuration Example SMV 3000 Transmitter User’s Manual 183 184 SMV 3000 Transmitter User’s Manual Table C-4 Air Configuration Example Example Air 186 SMV 3000 Transmitter User’s Manual SMV 3000 Transmitter User’s Manual 187 SMV Operation in a Steam Application Example Superheated Steam Table C-5 Superheated Steam Configuration Example 190 SMV 3000 Transmitter User’s Manual Dynamic Compensation Flow Equation Page SMV 3000 Smart Multivariable Transmitter # in User Sub-Section Description of Change Torque Table Process Head Bolts/Nuts ································ ··································· 34-SM-99-01 Addendum to 33-SM-25-02 03/04 Psi 03/04 34-SM-99-01 Addendum to 33-SM-25-02 Index Cont’d 194 SMV 3000 Transmitter User’s Manual SMV 3000 Transmitter User’s Manual 195 Industrial Automation and Control