Mounting Instructions, Process Cautions | Siemens Sitrans, LC 500

Mounting Instructions

The SITRANS LC 500 is easily installed: simply mount the instrument on the process connection of the vessel.

Notes:

•The transmitter is specified for use at temperatures ranging from –40 °C to 85 °C (–40 oF to 185 oF): if your process temperature is outside this range, a standard option is available with a thermal isolator.

•Before mounting the SITRANS LC 500, check to ensure the threads are matching to avoid damaging them.

Protection for solid-state switch

•for dc circuits: connect protection diodes in the correct polarity across the relay coil

•for ac circuits: connect a Voltage Dependent Resistor (VDR) or other ac compatible component (such as zeners and protection diodes in combination) in the correct polarity across the relay coil

Process Cautions

CAUTION: Consider material surface configuration when installing unit.

CAUTIONS:

•With a centrally mounted cable version, take care that the tensile load does not exceed probe or vessel rating

•With a cable version mounted close to the tank wall, take care that the product does not push the cable against the tank wall: a spring can be used as a retainer.

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500mm

(20”) min.

7ML19985GE01

SITRANS LC 500 – INSTRUCTION MANUAL

Page 21

Installation

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Siemens Sitrans, LC 500 instruction manual Mounting Instructions, Protection for solid-state switch, Process Cautions

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 Description Abbreviations and IdentificationsShort form Long Form Performance PowerSpecifications Environmental Outputs User InterfaceCommunications Enclosure electronic WeightElectrodes Wetted Parts Approvals Process Conditions Capacitance measurement in a cylindrical metal tank Sitrans LC 500 TransmitterOperating Principles Operation & Application Non-conductive or conductive contents Sitrans LC 500 electrode A non-conductive or irregular tankStilling well Inactive Active shieldActive Measurement Section Probe seal Application Sitrans LC USL Level Measurement Interface Measurement Switch action Via the solid-state output Fault SignallingVia the loop current Via Hart 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 WiringInterconnection Sitrans LC Supply Selecting the correct instrumentation cable Cable Which allows for 560 meters on that side Is applications maximum cable lengthMulti-drop applications maximum cable length Subtract the capacitance for the device 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 Setting Description Factory SettingsSwitch Protection Diode Settings 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 Push-buttons Rotary switchAccess to a menu item Adjusting the value Transmitter Variable User-defined Functions Units Transmitter Variables Quick Start Sequence Start-up Sitrans LCQuick Start Start Up 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 Inspections MaintenanceMaintenance Test function Maintenance Troubleshooting Sitrans LC TroubleshootingIf you are unable to change settings Error Description Cause Message Error Messages and Error CodesError Messages push-button operation Error Codes Hart Appendix a Menu Groups Menu Items Transmitter Variable Settings menu levelStepsize Update Value Rotary Left Switch Description Values Position Arrow Set the rotary switch to B DampingLower Sensor Limit Description Values Position Rotary SwitchDelta Range Setting Upper Sensor Limit 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 Display the Highest / Lowest Recorded Value Rotary Left Description Values SwitchRotary Switch Left Arrow Description Position To change from menu 10 to menu Set the rotary switch to Transmitter Variables Dynamic Value menu level Rotary Left Switch Mode Description Action Values Indicator Analog Output Signalling proportional or 2-state menu levelUpper Threshold Delay 2-state mode Rotary Left Added Switch Arrow Mode Description Values Position Rotary Left Added SwitchArrow Indicator Upper Threshold Setting 2-state mode Lower Threshold Setting 2-state mode Analog Signalling Mode 2-state menu level Rotary Left Mode State HighState State Low 22.0 mA Analog Fault Signalling 2-stateState mode must be selected at menu For detailed information, see Fault Signalling on Identifier Cription Digital Output Signalling solid-state output menu levelUpper Threshold Delay solid-state output Rotary Left Des Switch Lower Threshold Delay solid-state output Upper Threshold Setting solid-state outputValue Indicator Cription Rotary Left Des Switch ModeLower Threshold Setting solid-state output Rotary Left Added Des Switch Mode Digital Signalling Mode solid-state output Rotary Left Des Switch Arrow Mode Cription Action= cc Digital Fault Signalling Rotary Left Switch ModeAction Values Miscellaneous Output Signal Processing TestFactory Settings Switch Left Arrow Description Display Meaning Position Range Inversion Rotary Switch Left Arrow Description Mode Values PositionProtection Display Switch Local Settings Appendix B LCD display examples LCD alphanumeric display examplesAppendix B Simatic Process Device Manager PDM Appendix C Hart DocumentationHart information Hart Device Descriptor DD Sitrans LC 500 DD Menu/Variable Organization Hart Response Code Information Command Description Usage Number Hart Conformance and Command Class Non-volatile Memory Data Storage Command Description UsageGeneral Transmitter Information Damping information Units conversions Additional Universal Command SpecificationsBurst mode MultiDrop operation 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 Appendix E Standard VersionStandard Version S-Series, Threaded Series Threaded Series Cable Version With weight With anchor Features Standard Version S-Series, Threaded Series, Welded Flange Features Standard Version S-Series, Flanged Series Features Standard Version D-SeriesFeatures Standard Version DD-Series Standard Version D-Series, Machined Flange Thermal isolator to prevent Features Standard Version, Probe/ Thermal IsolatorSD-Series Probe/Thermal Isolator All wetted parts made of PFA Interface Version, threaded optional sanitary and flanged Interface Version Sanitary Version Features Sanitary Version, Tri-Clamp Flange Standards Flanges Capacitance in oil Examples using dimensions above Capacitance in airApplications Examples Generic Application Calculations PF = 33.2 pF Larger tank, dimensions in feet 08.0 Device settingsCAn 90.0 CHi Application Analog fault signalling 2-state outputCurrent loop is in 2-state mode C Hi selected State fault signalling enabled F Hi selected LSL is set to 7.3 pF USL is set to 83.50 pF Appendix F Appendix F ApprovalsCE Certificate Sitrans LC 500 / Pointek CLS 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