Sierra 241-VTP, 240-VTP instruction manual Flow Meter Electronics

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Chapter 1 Introduction

Series 24-HP Instruction Manual

 

 

Flow Meter Electronics

Innova-Mass Flow Meter electronics are available mounted directly to the flow body, or remotely mounted. The electronics housing may be used indoors or outdoors, including wet environments. Power require- ments are 100 milliamps at 12-36 VDC. An optional AC powered unit is available. Three analog output signals are available for your choice of three of the five process variables: mass flow rate, volumetric flow rate, temperature, pressure or fluid density.

Innova-Mass Flow Meters include a local 2 x 16 character LCD display housed within the enclosure. Local operation and reconfiguration is ac- complished using six pushbuttons operated via finger touch. For hazard- ous locations, the six buttons can be operated with the electronics enclo- sure sealed using a hand-held magnet, thereby not compromising the in- tegrity of the hazardous location certification.

The electronics include nonvolatile memory that stores all configuration information. The nonvolatile memory allows the flow meter to function immediately upon power up, or after an interruption in power.

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Contents Models 240-VT, 240-VTP, 241-VT, 241-VTP Customer Notice Copyright Sierra InstrumentsTable of Contents Troubleshooting and Repair Figures TablesTable of Contents Innova-MassMulti-Parameter Vortex Mass Flow Meters Using This ManualIntroduction Receipt of System Components Technical AssistanceHow the Innova-Mass Vortex Mass Flow Meter Operates Velocity MeasurementVortex Shedding Frequency Vortex Frequency SensingFlow Velocity Range Gas LiquidTemperature Measurement Reynolds Number Range for the Innova-MassFlow Meter Configurations Pressure MeasurementFlow Meter Electronics Flow Meter Installation Requirements InstallationInstallation Overview Unobstructed Flow Requirements Series 240 In-Line Flow Meter Installation Flange Bolt SpecificationsWafer-Style Flow Meter Installation Wafer-Style Flow Meter InstallationFlange-Style Flow Meter Installation Flange-Style Flow Meter InstallationIsolation Valve Selection Series 241 Insertion Flow Meter InstallationMounting Position Cold Tap Guidelines Hot Tap Guidelines FlowFlow Meter Insertion Use the Correct Insertion FormulaInstalling Flow Meters with a Compression Connection ExampleInsertion Procedure for Meters with a Compression Connection Example 2 NPT Style Meters Installing Flow Meters with a Packing Gland ConnectionExample 1 Flange Style Meters Flow Meter with Permanent Insertion Tool 10. Flow Meter with Removable Insertion Tool 11. Insertion Calculation Meters without Insertion Tool Installation Adjusting Meter Orientation Display/Keypad Adjustment All MetersEnclosure Adjustment Series 240 Only 13. Enclosure Viewing AdjustmentAC Power Wiring Wiring ConnectionsInput Power Connections DC Power WiringMA Output Connections 16. Load Resistance Versus Input VoltagePulse Output Connections 20. Isolated Pulse Output with External Power Supply Alarm Output Connections 23. Isolated Alarm Output with External Power SupplyRemote Electronics Wiring 25. Isolated Alarm Output Using Meter Provided Power SupplyOptional Input Electronics Wiring Optional Energy EMS Input Electronics WiringPage Sierra Operating InstructionsFlow Meter Display/Keypad Run Mode Screens Start-UpUsing the Setup Menus Programming the Flow MeterOutput Menu TimeConstSec XxxxExample for Setting an Output First, set the desired units of measurementExample for Changing a Run Mode Display Item Display MenuAlarms Menu Example for Setting an AlarmExample for Setting the Totalizer Totalizer #1 MenuTotalizer #2 Menu Configuration Energy Menu For EMS Energy Meters OnlyFluid Menu Units Menu Example for Setting the Time Time & Date MenuDiagnostics Menu Calibration Menu Password Menu Troubleshooting and Repair Hidden Diagnostics MenusColumn One Hidden Diagnostics Values IM-24-HP A2D Ref. Resistor = Factory Use Only Analog Output Calibration Troubleshooting the Flow Meter Symptom Output at no Flow Symptom No Output Symptom Meter Displays Temperature Fault Electronics Assembly Replacement All Meters Pressure Sensor Replacement Appendix a Product Specifications Appendix a Specifications Appendix a Specifications Cnpt IP66, Nema Page Appendix B Glossary C DK L S T Page Density Appendix C Fluid CalculationsCalculations for Steam T & P ViscosityCalculations for Gas Real Gas and Other Gas Density for real gases is calculated from the equationCalculations for Liquid Page Appendix D Hart Commands with DD Menu PV AOAppendix D Hart Commands without DD Menu PV AO PV LRV URVAppendix E Modbus Communication Applicable Flow Meter ModelsModbus Order Register Definitions Appendix E Modbus Commands Following registers contain the display units strings Control Register Definitions Examples An attempt to read registers that don’t exist 8C 3A CRC not the correct CRC EJS-02-06-07 Appendix E Modbus Commands