Siemens LC 500 user manual

User manual for the device Siemens LC 500

Device: Siemens LC 500
Category: Treadmill
Manufacturer: Siemens
Size: 3.53 MB
Added : 8/29/2014
Number of pages: 122
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Abstracts of contents
Summary of the content on the page No. 1

Instruction Manual January 2003
sitrans
LC 500

Summary of the content on the page No. 2

Safety Guidelines Warning notices must be observed to ensure personal safety as well as that of others, and to protect the product and the connected equipment. These warning notices are accompanied by a clarification of the level of caution to be observed. Qualified Personnel This device/system may only be set up and operated in conjunction with this manual. Qualified personnel are only authorized to install and operate this equipment in accordance with established safety practices and standards

Summary of the content on the page No. 3

mmmmm Table of Contents Table of Contents SITRANS LC 500 ..................................................................................................................1 Applications ....................................................................................................................................1 Safety Notes .............................................................................................................................................2 Safety marking symbols .

Summary of the content on the page No. 4

Cathodically Protected Metal Tanks ....................................................................................29 Non-Conductive Tanks ............................................................................................................29 Safety Grounding .........................................................................................................................30 Communications ..........................................................................................

Summary of the content on the page No. 5

mmmmm Table of Contents Appendix C: HART Documentation ...............................................................................75 HART Communications for the SITRANS LC 500 ..........................................................................75 HART Device Descriptor (DD) ..................................................................................................75 Simatic Process Device Manager (PDM) .............................................................................

Summary of the content on the page No. 6

Appendix F: Approvals .....................................................................................................96 CE Certificate ................................................................................................................................96 CE Certificate ................................................................................................................................97 Instrument label: SITRANS LC 500 .................................................

Summary of the content on the page No. 7

mmmmm Introduction SITRANS LC 500 SITRANS LC 500 is a high performance 2-wire capacitance instrument for continuous level and interface measurement in extreme or critical conditions. It uses a unique frequency- based measurement system and patented Active-Shield technology to deliver highly accurate, repeatable results. The measurement is unaffected by moisture, vapors, foam, temperature and pressure variations, or material build-up around the mounting glands. SITRANS LC 500 combines a sophi

Summary of the content on the page No. 8

Safety Notes Special attention must be paid to warnings and notes highlighted from the rest of the text by grey boxes. WARNING: relates to a caution symbol on the product, and means that failure to observe the necessary precautions can result in death, serious injury, and/or considerable material damage. WARNING: means that failure to observe the necessary precautions can result in death, serious injury, and/or considerable material damage. CAUTION: means that failure to observe the necessa

Summary of the content on the page No. 9

mmmmm Introduction Abbreviations and Identifications Short form Long Form Description Units A/D Analog to Digital Conformitè Europèene / Factory CE / FM / CSA Mutual / Canadian Standards safety approval Association D/A Digital to Analog DAC Digital Analog Converter DCS Distributed Control System control room apparatus ESD Electrostatic Discharge Ex Explosion Proof safety approval Exd Flame Proof safety approval FV Full Vacuum Highway Addressable Remote HART Transducer IS Intrinsically Safe saf

Summary of the content on the page No. 10

Technical Specifications: SITRANS LC 500 Power Supply voltage • maximum: 33 Vdc, (30 Vdc for IS) • minimum 12 Vdc at 3.6 mA (9.5 Vdc at 22 mA) Loop current 3.6 to 22 mA / 22 to 3.6 mA (2-wire current loop) Environmental Location indoor/outdoor Altitude 2000 m max. Ambient temperature o o o o •standard: –40 C to 85 C (–40 F to 185 F) o o o o • ATEX-Explosion Proof –40 C to 70 C (–40 F to 158 F) for T6 o o o o –40 C to 85 C (–40 F to 185 F) for T5 to T1 Relative humidity suitable for outdoor (Type

Summary of the content on the page No. 11

mmmmm Specifications Safety • current signalling according to NAMUR NE 43; 3.6 to 22 mA / 22 to 3.6 mA • probe input ESD protected to 55 kV • inputs/outputs fully galvanically isolated • polarity-insensitive current loop • fully potted • integrated safety barrier Diagnostics (Includes • primary variable (PV) out of limits fault alarm) • system failure measurement circuit • deviation between A/D and D/A converter values •check sum •watch dog • self-checking facility Outputs • galvanically isol

Summary of the content on the page No. 12

Electrodes Process connections • threaded connection AISI 316 L stainless steel, 3/4”, 1”, 1-1/4”, 1-1/2”, 2” , NPT, BSPT, JIS 1 • flat-faced flanges AISI 316 L stainless steel (optional C 22.8 N, Monel 400, 2 3 Hastelloy C22, Duplex) ANSI, DIN Probe diameter •Cable: 9 mm (0.35”) • Rod: 16 mm (0.63”) or 24 mm (0.95”) Probe length • Rod version: up to 3500 mm (138”) with 16 mm (0.63”) diameter probe up to 5500 mm (216”) with 24 mm (0.95”) diameter probe • Cable version: 35 m (15 ft.) 4 Prob

Summary of the content on the page No. 13

mmmmm Specifications Process Conditions 1 Pressure rating • standard FV (full vacuum) to 200 bar (2920 psi) • option up to 525 bar (7665 psi) 1 Temperature rating • standard –200 °C to 200 °C (–328 °F to 392 °F) • option up to 400 °C (752 °F) Approvals CE Complies with the requirements of E.C.C. as per EN 55011 and EN 61326 Dust Ignition Proof (DIP) ATEX II 3GD (EEx nA [ib] IIC T4...T6) FM/CSA: Class I, Div. 2, Gr. A,B,C,D T4 Class II, Div. 1, Gr. E,F,G T4 Class III, Div. 1, Gr. E,F,G T4 I

Summary of the content on the page No. 14

SITRANS LC 500: Transmitter Operating Principles 1 Capacitance measurement operates by forming a variable capacitor resulting from the installation of a vertical measurement electrode in a vessel or silo. The tank wall usually forms the reference electrode of the capacitor. Whatever material is sandwiched between the two electrodes forms the dielectric. This will be composed of the vessel contents (air, vapor, liquid, solid, or a combination) and, if the measurement electrode is insulated,

Summary of the content on the page No. 15

mmmmm Operation & Application K × ε ×L 1 The formula is: C = ----------------- -------- - Log() D ⁄d where C = capacitance K = constant ε = dielectric constant L = active measurement length D = diameter of tank d = probe diameter. (For detailed application examples, see page 91.) The transmitter measures the capacitance of the measurement electrode relative to the tank wall (reference electrode) and transforms it to a 4-20 mA signal. Any material that covers the probe will cause an increase i

Summary of the content on the page No. 16

In a non-conductive or irregular tank Where the vessel contents are non-conductive: • a reference electrode parallel to the measurement electrode is required • the reference electrode must be grounded to the instrument • a stilling well can form the reference electrode. Where the vessel contents are conductive: • the interface between the contents and the electrode insulation acts as the reference electrode • a connection from the vessel contents to the instrument ground is required • a still

Summary of the content on the page No. 17

mmmmm Operation & Application SITRANS LC 500 Conventional Capacitance with Active Shield Measurement R = (C1 + C2 + C3) + Ca R = Ca (C1 + C2 + C3) + Ca + Cm Ca + Cm R = Ratio between initial capacitance and total Measuring- Measuring- capacitance Circuit Circuit Ca = Initial capacitance (air) Cm = Capacitance Increase (product) C1 C1 = Capacitance connection C2 point C3 C2 = Capacitance connection cable Ca Ca C3 = Capacitance Process Cm Cm connection (includes active part) The measureme

Summary of the content on the page No. 18

The entire SITRANS LC 500 transmitter is potted in epoxy resin as part of the intrinsic safety protection. The potting also protects the electronics against mechanical vibration and moisture influences. The transmitter is connected to the electrode by a mini coaxial cable, and grounded to a connection point inside the enclosure. The external ground lug on the enclosure provides 1 a means of connecting the instrument system ground to a grounded tank or stilling well . (For more detailed inf

Summary of the content on the page No. 19

mmmmm Operation & Application operationLC500.fm Page 13 Monday, January 27, 2003 6:22 PM Indicator - dynamic Primary Variable (units or % of range) 0-100% auxiliary power solid- pump state current loop connection power output Active Shield section P USL URV = 100% Upper Threshold Setting = % solid- (activation hysteresis) state switch output or 2-state (deactivation hysteresis) mA output Lower Threshold Setting = % LRV = 0% LSL 3. Upper Threshold Setting and Lower Threshold Setting

Summary of the content on the page No. 20

Interface Measurement The capacitance of the electrode system is dependent on the dielectric constant of the product surrounding the probe. By comparing the capacitances resulting from different products with different dielectric constants, it is possible to determine which product is surrounding the probe. For miscible products: Contamination of one product by another can be measured: 100% product A 4 mA 100% product B 20 mA Values in between 4 and 20 mA represent the ratio of the two produc


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