Transmitter Variables

•Transmitter Variable 0 (TV0) is the capacitance as measured by the device.

•Transmitter Variable 1 (TV1) is a computed variable: the dynamic value is a computed derivative from the range settings for TV0.

Transmitter Variable	User-defined Functions	Units
TV0	URV, LRV, Damping, USL and LSL	pF

TV1		Can be user-defined
TV1		Can be user-defined

User Interface

7ML19985GE01

SITRANS LC 500 – INSTRUCTION MANUAL

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Siemens Sitrans, LC 500 instruction manual Transmitter Variables, Transmitter Variable User-defined Functions Units

Contents

Sitrans Safety Guidelines Qualified Personnel Technical data subject to changeTechnical Publications Table of Contents Maintenance Appendix C Hart Documentation Iii 113 Introduction Applications Safety Notes Safety marking symbolsManual Short form Abbreviations and IdentificationsLong Form Description Specifications PowerEnvironmental Performance Outputs User InterfaceCommunications Electrodes WeightWetted Parts Enclosure electronic Approvals Process Conditions Operating Principles Sitrans LC 500 TransmitterOperation & Application Capacitance measurement in a cylindrical metal tank Non-conductive or conductive contents Sitrans LC 500 electrode A non-conductive or irregular tankStilling well Active Active shieldMeasurement Section Probe seal Inactive Application Sitrans LC USL Level Measurement Interface Measurement Switch action Via the loop current Fault SignallingVia Hart Via the solid-state output Probe Configuration Sitrans LC 500 Probe Configuration Electrode Assembly Process ConnectionsSeal Types Pressure and Temperature Considerations Non-standard applications Non-Standard Application Sitrans LC 500 Configuration Sitrans LC 500 Installation InstallationHandling Electrodes Protection for solid-state switch Mounting InstructionsProcess Cautions Sitrans LC 500 Standard Level Version Interconnection Sitrans LC WiringSupply Interconnection Selecting the correct instrumentation cable Cable Multi-drop applications maximum cable length Is applications maximum cable lengthSubtract the capacitance for the device Which allows for 560 meters on that side Connecting Sitrans LC Connection DiagramTerminals Grounding instructions Where the stilling well is welded to the tank 7ML19985GE01 Grounding Examples Sitrans LC System Grounding referencingMetal Tanks Non-Conductive Tanks Cathodically Protected Metal Tanks Example Safety Grounding Hazardous area Non-hazardous area Diagnostics Typical PLC configuration with HartCommunications Applications for Solid-state Output Current values used as signals from digital transmitters Switch Protection Diode Factory SettingsSettings Setting Description Interconnection Setting Sitrans LC 500 User Interface LCD displayUser Interface How to access the data Menu Levels 00 to 0F and 10 to 1FDescription Menu Group Details Access to a menu item Rotary switchAdjusting the value Push-buttons Transmitter Variable User-defined Functions Units Transmitter Variables Quick Start Start-up Sitrans LCStart Up Quick Start Sequence Num Rotary Switch Positions Quick Reference Menu levels 0 To change from menu 00 to menuTo change from menu 10 to menu Calibration using push-button adjustment Changing stepsize value menu 100% value is setCurrent percent of span = 14/20 = 70% Start Up Calibration using Hart Start Up Number Description Number Maintenance MaintenanceTest function Inspections Maintenance Troubleshooting Sitrans LC TroubleshootingIf you are unable to change settings Error Messages push-button operation Error Messages and Error CodesError Codes Hart Error Description Cause Message Appendix a Menu Groups Stepsize Update Value Transmitter Variable Settings menu levelRotary Left Switch Description Values Position Arrow Menu Items Set the rotary switch to B DampingLower Sensor Limit Delta Range Setting Rotary SwitchUpper Sensor Limit Description Values Position Affected Rotary Left Switch Mode Description Affected Rotary Left Switch ModeLower Range Value Transmitter Variable Values menu level Upper Range ValueDynamic Value, Primary Variable PV menu 00 and menu Rotary Switch Left Arrow Description Position Rotary Left Description Values SwitchTo change from menu 10 to menu Set the rotary switch to Display the Highest / Lowest Recorded Value Transmitter Variables Dynamic Value menu level Rotary Left Switch Mode Description Action Values Upper Threshold Delay 2-state mode Analog Output Signalling proportional or 2-state menu levelRotary Left Added Switch Arrow Indicator Arrow Indicator Rotary Left Added SwitchUpper Threshold Setting 2-state mode Mode Description Values Position Lower Threshold Setting 2-state mode Analog Signalling Mode 2-state menu level Rotary Left Mode State HighState State Low State mode must be selected at menu Analog Fault Signalling 2-stateFor detailed information, see Fault Signalling on 22.0 mA Upper Threshold Delay solid-state output Digital Output Signalling solid-state output menu levelRotary Left Des Switch Identifier Cription Lower Threshold Delay solid-state output Upper Threshold Setting solid-state outputValue Lower Threshold Setting solid-state output Rotary Left Des Switch ModeRotary Left Added Des Switch Mode Indicator Cription Digital Signalling Mode solid-state output Rotary Left Des Switch Arrow Mode Cription Action= cc Digital Fault Signalling Rotary Left Switch ModeAction Values Factory Settings Output Signal Processing TestSwitch Left Arrow Description Display Meaning Position Miscellaneous Protection Display Switch Local Rotary Switch Left Arrow Description Mode Values PositionSettings Range Inversion Appendix B LCD display examples LCD alphanumeric display examplesAppendix B Hart information Appendix C Hart DocumentationHart Device Descriptor DD Simatic Process Device Manager PDM Sitrans LC 500 DD Menu/Variable Organization Hart Response Code Information Command Description Usage Number Hart Conformance and Command Class General Transmitter Information Command Description UsageDamping information Non-volatile Memory Data Storage Burst mode Additional Universal Command SpecificationsMultiDrop operation Units conversions Sitrans LC 500 Block Diagram Appendix D Block Diagram, and Correlation table, mA to % Correlation % 100% to 4-20 mA or 20-4 mA Range 0 100 % Current in mAAppendix D Standard Version S-Series, Threaded Standard VersionSeries Threaded Appendix E Series Cable Version With weight With anchor Features Standard Version S-Series, Threaded Series, Welded Flange Features Standard Version S-Series, Flanged Features Standard Version DD-Series Features Standard Version D-SeriesStandard Version D-Series, Machined Flange Series SD-Series Probe/Thermal Isolator Features Standard Version, Probe/ Thermal IsolatorAll wetted parts made of PFA Thermal isolator to prevent Interface Version, threaded optional sanitary and flanged Interface Version Sanitary Version Features Sanitary Version, Tri-Clamp Flange Standards Flanges Applications Examples Examples using dimensions above Capacitance in airGeneric Application Calculations Capacitance in oil PF = 33.2 pF Larger tank, dimensions in feet CAn Device settings90.0 08.0 Current loop is in 2-state mode C Hi selected Application Analog fault signalling 2-state outputState fault signalling enabled F Hi selected CHi LSL is set to 7.3 pF USL is set to 83.50 pF CE Certificate Appendix F ApprovalsSitrans LC 500 / Pointek CLS Appendix F CE Bescheinigung Wir erklären hiermit auf eigene Verantwortung, dass derHinweis Instrument label Sitrans LC Kema certificate and schedules Appendix F Appendix F Appendix F Appendix F Appendix F Appendix F Appendix F Application Specifications Certificates and ApprovalsNamur recommendation NE Approval Glossary Glossary 7ML19985GE01 Index NumericsIndex Index Wiring Quick Reference Quick Reference Sitrans LC Rotary Switch Positions Quick Reference Page 7ml19985GE01

Siemens Sitrans, LC 500 Transmitter Variables, Transmitter Variable User-defined Functions Units

Models: LC 500 Sitrans

Transmitter Variables

Transmitter Variable

User-defined Functions

Units

User Interface