vega controls - continuous level measurement

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Vega Controls The Process Engineers Business Directory.

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  • 15

    Radar Continuous level measurement

    Overview Page 16

    VEGAPULS series 60 Page 18

    Antenna cover Page 36

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  • 16 Radar VEGAPULS

    VEGAPULSNon-contact measurement under all process conditions

    Measuring principleExtremelyshortmicrowaveimpulsesareemittedbytheantennasystemtothemeasuredproduct,reflectedby the product surface and received again by the antenna system. The time from emission to reception ofthe signals is proportional to the level in the vessel. A special time spreading procedure enables the reliableand precise measurement of the extremely short signal running times. The radar sensors are available indifferent C and K-band frequency ranges, this ensures the optimum solution for the different applications. TheprovenECHOFOXsignalprocessinganalysisthereflectionsinthevesselbasedonlong-standingexperienceand detects the level signal reliably. The adaptation to the respective application is really simple through theselection of the application parameters.

    Applications

    Level in liquidsTwo different emitting frequencies are available for these applications.The compact, high frequency K-band sensors VEGAPULS 61, 62 and63 are particularly suitable for applications for which high accuracyis required. Through the small antenna sizes, an excellent signalfocusing is reached and hence mounting on small mounting openingsis possible. The low frequency C-band sensors VEGAPULS 65 and 66can penetrate foam and strong condensation and are thus particularlysuitable for arduous process conditions. Unaffected by steam, gascomposition, pressure and temperature changes the radar sensorsdetect the product surface of different products reliably and ensurethus an optimum process.

    Level in bulk solidsThe high frequency sensors VEGAPULS 67 and 68 in K-bandtechnology are used for these applications. Thanks to the very goodfocusing of the signals, the level is detected reliably independent of siloinstallations or buildup on the vessel wall. A high sensitivity electronicsoptimized to the requirements of the bulk solids measurement, enablesa reliable level measurement of different products up to a distance of75 m. The measuring principle is unaffected by strong dust generation,fillingnoise,airturbulencebypneumaticfillingandtemperaturefluctuationsandensuresareliableandmaintenance-freeoperationof the systems. The application area covers applications in the foodprocessing industry and the plastic processing up to the steel generati-on and mineral rock processing.

  • 17Radar VEGAPULS

    Instrument type Measuring range Accuracy

    Process fitting Process tempe-rature

    Process pressure

    VEGAPULS WL 61Liquids, in the water and sewage management

    up to 15 m, +/- 2 mm

    Thread G1, mounting strap, compression flangesfrom DN 80, 3"

    -40 +80 C -1 +2 bar (-100 +200 kPa)

    VEGAPULS 61Liquids under easy process conditions

    up to 35 m, +/- 2 mm

    Thread G1, 1 NPT, mounting strap, compression flangesfromDN80,3"

    -40 +80 C -1 +3 bar (-100 +300 kPa)

    VEGAPULS 62Storage tanks, reactors and process vessels, also with arduous process conditions

    up to 35 m, +/- 2 mm

    Thread from G1, 1NPT,flangesfrom DN 50, 2"

    -200 +450 C -1 +160 bar (-100 +16000 kPa)

    VEGAPULS 63Aggressive liquids or with hygienic requirements

    up to 35 m, +/- 2 mm

    Hygienicfittings,boltings,flangesfrom DN 50, 2"

    -200 +200 C -1 +16 bar (-100 +1600 kPa)

    VEGAPULS 65Liquids under easy process conditions

    up to 35 m, +/- 8 mm

    Thread from G1, 1NPT,flangesfrom DN 50, 2"

    -40 +150 C -1 +16 bar (-100 +1600 kPa)

    VEGAPULS 66Storage tanks, process vessels or standpipes under arduous process conditions

    up to 35 m, +/- 8 mm

    Flanges from DN 50, 2"

    -60 +400 C -1 +160 bar (-100 +16000 kPa)

    VEGAPULS 67Bulk solids under easy pro-cess conditions

    up to 15 m, +/- 2 mm

    Mounting strap, compression flangesfrom DN 80, 3"

    -40 +80 C -1 +2 bar (-100 +200 kPa)

    VEGAPULS SR 68Bulk solids also under arduous process conditions

    up to 30 m, +/- 2 mm

    Thread G1, 1NPT,flangesfrom DN 50, 2"

    -40 +250 C -1 +100 bar (-100 +10000 kPa)

    VEGAPULS 68Bulk solids also under arduous process conditions

    up to 75 m,+/- 2 mm

    Thread G1, 1NPT,flangesfrom DN 50, 2"

    -200 +450 C -1 +160 bar (-100 +16000 kPa)

    Overview

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  • 18

    21

    15 m

    m(0

    .59"

    )98

    mm

    (3.8

    6")

    300

    mm

    (11.

    81")

    42,5

    mm

    (1.6

    7")

    18,5

    mm

    (0.7

    3")

    75 mm(2.95")

    115 mm(4.53")

    72 mm(2.84")

    8 mm(0.32")

    G1 1/2

    170 mm / 300 mm(6.69") / (11.81")

    Radar VEGAPULS WL61

    1 Mounting strap2Combicompressionflange

    Youwillfindfurtherprocessfittingsandoptionsunderwww.vega.com/configurator.Youwillfindfurtherdrawingsandtablesunderwww.vega.com/downloads.Youwillfindmountingaccessory,weldedsocketsandhousingoverviewsinchapter"Accessory".

    VEGAPULS WL 61 Radar sensor for continuous level measurement of water and waste water Application area The VEGAPULS WL 61 is the ideal sensor for all applications in water and sewage water applications. It is particularly suitable for use in water processing, pump stations as well as overflow basins, for flow measurement in open flumes and gauge monitoring. The VEGAPULS WL 61 is an economical solution through versatile and simple mounting options. The flood-proof IP 68 housing ensures a maintenance-free permanent operation. Your benefit Maintenance-free operation through non-contact measuring principle High plant availability, because wear and maintenance-free Exact measuring results independent of product, process and ambient conditions Technical data Measuring range: up to 15 m Process fitting: thread G1 mounting strap compression flanges from DN 80, 3" Process temperature: -40 +80 C Process pressure: -1 +2 bar (-100 +200 kPa) Accuracy: +/- 2 mm

  • 19Radar VEGAPULS WL61

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    lApprovalXX without ...................................................................................................................................................................................................................................................AX ATEX II 3G Ex nA IIC T6 Gc X ..............................................................................................................................................................................................................................CX ATEX II 1G, 1/2G, 2G Ex ia IIC T6 Ga, Ga/Gb, Gb ...........................................................................................................................................................................................................CX IEC Ex ia IIC T6 Ga, Ga/Gb, Gb ............................................................................................................................................................................................................................

    Version / Material / Process temperatureB with plastic horn antenna 80mm / PP / -40...80C .........................................................................................................................................................................................................

    Process fitting / MaterialXX without compression flange ................................................................................................................................................................................................................................XG Counter nut G1 / PPH .....................................................................................................................................................................................................................................XB Mounting bracket with 45 - Reflector / 316L ..............................................................................................................................................................................................................XC Mounting strap 170mm / 316L ...............................................................................................................................................................................................................................XD Mounting strap 300 mm / 316L ..............................................................................................................................................................................................................................YD Combi compr.flange DN80PN16, ANSI3", 150 lb / PPH .........................................................................................................................................................................................................

    ElectronicsH Two-wire 4...20mA/HART ...................................................................................................................................................................................................................................P Profibus PA ...............................................................................................................................................................................................................................................F Foundation Fieldbus .......................................................................................................................................................................................................................................

    Housing / ProtectionK Plastic / IP68 (2bar) / with cable outlet .............................

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