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Summary of Contents for Pepperl+Fuchs LGC2
- Page 1 PROCESS AUTOMATION MANUAL Level Probe LGC2 Hydrostatic Level Measurement 4 to 20 mA Analog ISO9001...
- Page 2 Level Probe LGC2 With regard to the supply of products, the current issue of the following document is applicable: The General Terms of Delivery for Products and Services of the Electrical Industry, published by the Central Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most recent version as well as the supplementary clause:...
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Page 3: Table Of Contents
Level Probe LGC2 Content Important Document Information ....... . . 6 Document Function . - Page 4 Level Probe LGC2 Content Mounting the Terminal Block for the passive Pt100 Resistance Thermometer (without HUT Temperature Head Transmitter) ..26 Cable Marking ..........26 5.10 Cable Shortening Kit.
- Page 5 Level Probe LGC2 Content 12 Technical Specifications........42 12.1 Input .
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Page 6: Important Document Information
Level Probe LGC2 Important Document Information Important Document Information Document Function This document contains all the information that is required in various phases of the life cycle of the device: from product identification, incoming acceptance and storage, to mounting, connection, operation and commissioning through to troubleshooting, maintenance and disposal. - Page 7 Level Probe LGC2 Important Document Information 1.2.2 Electrical symbols Symbol Meaning Direct current A terminal to which DC voltage is applied or through which direct current flows. Alternating current A terminal to which alternating voltage is applied or through which alternating current flows.
- Page 8 Level Probe LGC2 Important Document Information 1.2.4 Symbols for certain types of information Symbol Meaning Allowed Indicates procedures, processes or actions that are allowed. Preferred Indicates procedures, processes or actions that are preferred. Forbidden Indicates procedures, processes or actions that are forbidden.
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Page 9: Documentation
Level Probe LGC2 Important Document Information Documentation The documents listed are available on the product detail page of the appropriate product. 1.3.1 Technical Information (TI) Planning aid for your device: TI00431O The document contains all the technical data on the device and provides an overview of the accessories and other products that can be ordered for the device. -
Page 10: Terms And Abbreviations
Level Probe LGC2 Important Document Information Terms and Abbreviations Figure 1.1... - Page 11 Level Probe LGC2 Important Document Information Position Terms/abbreviations Explanation The OPL (over pressure limit = sensor overload limit) for the measuring device depends on the lowest-rated element, with regard to pressure, of the selected components, i. e. the process connection has to be taken into consideration in addition to the measuring cell.
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Page 12: Turn Down Calculation
Level Probe LGC2 Important Document Information Turn down calculation 1 = 2 Figure 1.2 Calibrated/adjusted span Zero point-based span (4 to 20 mA analog: customer-specific span can only be set at the factory when ordered) Upper range value Example • Sensor: 10 bar (150 psi) •... -
Page 13: Basic Safety Instructions
The manufacturer is not liable for damage caused by improper or non-designated use. Verification for borderline cases: For special fluids and fluids for cleaning, Pepperl+Fuchs is glad to provide assistance in verifying the corrosion resistance of fluid-wetted materials, but does not accept any warranty or liability. -
Page 14: Product Safety
It meets general safety standards and legal requirements. It also complies with the EU directives listed in the device-specific EU Declaration of Conformity. Pepperl+Fuchs confirms this by affixing the CE mark to the device. -
Page 15: Product Description
Level Probe LGC2 Product Description Product Description Function The ceramic measuring cell is a dry measuring cell i. e. the pressure acts directly on the robust, ceramic process isolating diaphragm of the device. Changes in air pressure are guided via a pressure compensation tube through the extension cable to the rear of the ceramic process isolating diaphragm and are compensated for. -
Page 16: Incoming Acceptance And Product Identification
Do the data on the nameplates correspond to the order specifications on the delivery note? Is the documentation available? If required (see nameplate): Are the instruction manuals (SI) present? Table 4.1 Note! If one of these conditions is not met, please contact your Pepperl+Fuchs sales office. -
Page 17: Product Identification
Level Probe LGC2 Incoming Acceptance and Product Identification Product Identification The following options are available for identification of the measuring device: • Nameplate data • Order code with breakdown of the device features on the delivery note • Scan the 2-D matrix code (QR code) on the nameplate: all the information for the measuring device is displayed. - Page 18 Level Probe LGC2 Incoming Acceptance and Product Identification 4.3.2 Additional nameplate for devices with approvals Mat.: 316L/1.4435/1.4404, Al O , PE, EPDM, PPO For use in drinking water according to: Figure 4.2 Approval symbol Reference to associated documentation Approval number 4.3.3...
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Page 19: Storage And Transport
• Follow the safety instructions and transport conditions for devices weighing more than 18 kg (39.6 lbs). Scope of Delivery The scope of delivery comprises: • Level probe LGC2, optionally with integrated Pt100 resistance thermometer • Optional accessories Documentation supplied: • The BA01605O manual are available on the internet. -
Page 20: Installation
Level Probe LGC2 Installation Installation Installation Instructions OPEN 90° CLOSE 90° Figure 5.1 Cable mounting screw can be ordered as an accessory Terminal box can be ordered as an accessory Bending radius of extension cable > 120 mm (4.72 inch) -
Page 21: Additional Mounting Instructions
• Cable length tolerance: < 5 m (16 foot): ±17.5 mm (0.69 inch); > 5 m (16 foot): ±0.2 % • If the cable is shortened, the filter at the pressure compensation tube must be reattached. Pepperl+Fuchs offers a cable shortening kit for this purpose, see chapter 11. • Pepperl+Fuchs recommends using twisted, shielded cable. -
Page 22: Mounting The Device With A Mounting Clamp
Level Probe LGC2 Installation Mounting the Device with a Mounting Clamp Figure 5.3 Probe connection (extension cable) Suspension clamp Clamping jaws Mounting the Suspension Clamp 1. Mount the suspension clamp (2). Take the weight of the extension cable (1) and the device into account when selecting the fastening point. -
Page 23: Mounting The Device With A Cable Mounting Screw
Level Probe LGC2 Installation Mounting the Device with a Cable Mounting Screw Figure 5.4 Probe connection (extension cable) Cover for cable mounting screw Sealing ring Clamping sleeves Adapter for cable mounting screw Top edge of clamping sleeve Desired length of extension cable and device probe prior to assembly... -
Page 24: Mounting The Terminal Box
Level Probe LGC2 Installation Note! To remove the cable mounting screw, perform this sequence of steps in reverse. Warning! Risk of injury from working on containers Installation works on containers under pressure can result in injuries. Only mount the device with cable mounting screw in unpressurized containers. - Page 25 Level Probe LGC2 Installation Mounting the Temperature Head Transmitter 1. Guide the mounting screws (1) with the mounting springs (2) through the bore of the temperature head transmitter (3). 2. Secure the mounting screws with the circlips (4). Circlips, mounting screws and springs are included in the scope of delivery for the temperature head transmitter.
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Page 26: Mounting The Terminal Block For The Passive Pt100 Resistance Thermometer (Without Hut Temperature Head Transmitter)
Level Probe LGC2 Installation Mounting the Terminal Block for the passive Pt100 Resistance Thermometer (without HUT Temperature Head Transmitter) If the device with optional Pt100 resistance thermometer is supplied without the optional HUT temperature head transmitter, a terminal block is provided with the terminal box for the purpose of wiring the Pt100 resistance thermometer. -
Page 27: Cable Shortening Kit
Level Probe LGC2 Installation • To make installation easier, Pepperl+Fuchs marks the extension cable if a customer specific length has been ordered. Ordering information: product structure, feature "Service", option "RI" or "SI". • Cable marking tolerance (distance to lower end of level probe): Cable length <... -
Page 28: Electrical Connection
Level Probe LGC2 Electrical Connection Electrical Connection Warning! Danger to life from wrong electrical connection Incorrect electrical connection of the device can compromise its function and its electrical safety. When using the measuring device in a hazardous area, the relevant national standards and guidelines as well as the instruction manuals (SI) or installation or control drawings (ZD) must be adhered to. - Page 29 Level Probe LGC2 Electrical Connection Level probe LGC Level probe and Pt100 resistance thermometer (not for use in hazardous areas), ordering information, feature "Accessories", option "BN" Not for the level probe with external diameter of 29 mm (1.14 inch) 10.5 to 30 V DC (hazardous area), 10.5 to 35 V DC...
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Page 30: Supply Voltage
Level Probe LGC2 Electrical Connection 6.1.3 Wire Colors RD = red, BK = black, WH = white, YE = yellow, BU = blue, BR = brown 6.1.4 Connection Data Connection classification as per IEC 61010-1: • Overvoltage category 1 • Pollution level 1 Connection Data in the Hazardous Area See relevant instruction manuals (SI, ZD). -
Page 31: Cable Specifications
Level Probe LGC2 Electrical Connection Cable Specifications Pepperl+Fuchs recommends using shielded, twisted-pair two-wire cables. Note! The probe cables are shielded for device versions with outer diameters of 22 mm (0.87 inch) and 42 mm (1.65 inch). 6.3.1 Level probe and Pt100 (optional) •... -
Page 32: Maximum Load For Device 4 To 20 Ma Analog
Level Probe LGC2 Electrical Connection Maximum Load for Device 4 to 20 mA Analog The maximum load resistance depends on the supply voltage (U) and must be determined individually for each current loop, see formula and diagrams for device and temperature head transmitter. -
Page 33: Connecting The Measuring Unit
6.7.1 Overvoltage Protection To protect the device and the temperature head transmitter from large interference voltage peaks, Pepperl+Fuchs recommends installing overvoltage protection upstream and downstream of the display and/or evaluation unit as shown in the graphic. Figure 6.4 Power supply, display and evaluation unit with one input for Pt100 resistance... -
Page 34: Post-Connection Check
Level Probe LGC2 Electrical Connection Post-connection check • Are cables or the device undamaged (visual inspection)? • Do the cables comply with the requirements? • Do the cables have adequate strain relief? • Are all cable glands installed, firmly tightened and correctly sealed? •... -
Page 35: Operation
HUT temperature head transmitter. Note! Your Pepperl+Fuchs service organization would be glad to be of service if you have any other questions. Contact addresses can be found on the website at www.pepperl-fuchs.com. Overview of Operation... -
Page 36: Diagnostics And Troubleshooting
Level Probe LGC2 Diagnostics and Troubleshooting Diagnostics and Troubleshooting Troubleshooting General Errors Error Possible reason Solution Device is not Supply voltage does not match the Apply correct voltage. responding. specification on the nameplate. Supply voltage has incorrect Reverse polarity of supply voltage. -
Page 37: Troubleshooting Specific To Hut Temperature Head Transmitter
Level Probe LGC2 Diagnostics and Troubleshooting Troubleshooting Specific to HUT Temperature Head Transmitter Error Reason Solution No measuring 4 to 20 mA cable not connected Connect device, see chapter 6. signal correctly. No power supplied via the Check current loop. -
Page 38: Maintenance
Level Probe LGC2 Maintenance Maintenance • Terminal box: Keep the GORE-TEX filter free from contamination. ® • Probe connection (extension cable): Keep the PTFE filter in the pressure compensation tube free from contamination. • Check the process isolating diaphragm for buildup at suitable intervals. -
Page 39: Repairs
The measuring device must be returned if repairs or a factory calibration are required, or if the wrong measuring device has been ordered or delivered. According to legal regulations, Pepperl+Fuchs, as an ISO-certified company, is required to follow certain procedures when handling returned products that are in contact with medium. -
Page 40: Accessories
Level Probe LGC2 Accessories Accessories Note! Observe the additional information in the individual sections "Mechanical Construction", "Ambient Conditions", "Process Conditions", and "Installation" in the technical information TI00431O, see chapter 1.3. Designation Figure Description Ordering information Suspension clamp For easy installation of... - Page 41 Level Probe LGC2 Accessories Designation Figure Description Ordering information Cable shortening kit The cable shortening kit Product structure, feature is used to shorten a cable "Accessories", option easily and professionally. "WP" Testing adapter for Pepperl+Fuchs offers a Product structure, feature...
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Page 42: Technical Specifications
Level Probe LGC2 Technical Specifications Technical Specifications 12.1 Input 12.1.1 Measured Value Level probe and Pt100 (optional) • Hydrostatic pressure of a liquid • Pt100: temperature HUT temperature head transmitter (optional) for device with 4 to 20 mA Analog Temperature 12.1.2... -
Page 43: Output
Level Probe LGC2 Technical Specifications Absolute pressure Measuring Lowest calibratable span Vacuum resistance Option range [bar (psi)] [bar (psi [bar (psi)] 2.0 (30.0) 0.2 (3.0) 4.0 (60.0) 0.4 (6.0) 10.0 (150) 1.0 (15) 20.0 (300) 2.0 (30) Table 12.2 Largest turn down that can be configured at the factory: 10:1, higher turn down can be configured on request. - Page 44 Level Probe LGC2 Technical Specifications 12.2.3 Maximum Load The maximum load resistance depends on the supply voltage (U) and must be determined individually for each current loop, see formula and diagrams for device and temperature head transmitter. The total resistance resulting from the resistances of the connected devices, the connecting cable and, where applicable, the resistance of the probe connection may not exceed the load resistance value.
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Page 45: Performance Characteristics
Level Probe LGC2 Technical Specifications 12.3 Performance Characteristics 12.3.1 Reference Conditions Level probe and Pt100 (optional) • As per IEC 60770 • Ambient temperature T = constant, in the range: +21 to +33 °C (+70 to +91 °F) • Humidity = constant, in the range: 20 to 80 % r.F •... - Page 46 Level Probe LGC2 Technical Specifications 12.3.4 Long-Term Stability Level probe and Pt100 (optional) • 0.1 % of URL/year • 0.25 % of URL/5 years HUT temperature head transmitter (optional) for device with 4 to 20 mA Analog 0.1 K per year 12.3.5...
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Page 47: Ambient Conditions
Level Probe LGC2 Technical Specifications 12.4 Ambient Conditions 12.4.1 Ambient Temperature Range Level probe and Pt100 (optional) • With external diameter of 22 mm (0.87 inch) and 42 mm (1.65 inch): -10 to +70 °C (+14 to +158 °F) (= medium temperature) •... - Page 48 Level Probe LGC2 Technical Specifications 12.4.3 Degree of Protection Level probe and Pt100 (optional) IP68, permanently hermetically sealed at 20 bar (290 psi) (~200 m H2O) Terminal box (optional) IP66, IP67 HUT temperature head transmitter (optional) for device with 4 to 20 mA Analog...
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Page 49: Process Conditions
Level Probe LGC2 Technical Specifications 12.5 Process Conditions 12.5.1 Medium Temperature Range Level probe and Pt100 (optional) • With external diameter of 22 mm (0.87 inch) and 42 mm (1.65 inch): -10 to +70 °C (+14 to +158 °F) • With external diameter of 29 mm (1.14 inch): 0 to +50 °C (+32 to +122 °F) -
Page 50: Index
Level Probe LGC2 Index Application ................13 Borderline cases . - Page 51 Level Probe LGC2 Index Safety instructions ............... . . 13 Scope of delivery .
- Page 52 PROCESS AUTOMATION – PROTECTING YOUR PROCESS Worldwide Headquarters Pepperl+Fuchs GmbH 68307 Mannheim · Germany Tel. +49 621 776-0 BA01605O/98/EN/01.16 E-mail: info@de.pepperl-fuchs.com For the Pepperl+Fuchs representative closest to you check www.pepperl-fuchs.com/contact www.pepperl-fuchs.com Subject to modifications DOCT-5517 Copyright PEPPERL+FUCHS • Printed in Germany 02/2017...
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