Servo Gauges - Aguamarket

S t o r a g e Ta n k M e a s u r e m e n tServo Gauges

”The Tank Gauging People”Servo tank gauge - the advanced gauging toolEnraf introduced the automatic servo level gauging technology in the mid-fifties.Not long afterwards, we introduced the first Servo tank gauge in history to be certifiedby the leading Weights and Measures authorities.Innovative ideas are geared towards users satisfaction.After more than 40 years Enraf is still the driving force in tank gauging.Continuous development means: State of the art technologyLow maintenanceEasy to handleFlexible use of optionsCommunication to any systemComprehensive inventory informationCharacteristicsMeasuring range0 - 27,000 mm (0 - 88 ft)0 - 37,000 mm (0 - 121 ft)AccuracyLevel 1 mm ( 0.04”) *Housing materialStainless Steel AISI 316Cast aluminumOperating pressureup to 6 bar / 0.6 MPa (90 psi)up to 40 bar / 4 MPa (600 psi)Mounting2” flange on tank roof2“ flange on stilling well*)under reference conditionsEnraf tank farm management systems offer totalinventory control. With these systems and themodular functionality of the Servo gauges, you areprovided with on-line information including: Accurate liquid levelsAccurate interface levelsAccurate product and vapor temperatureVolumeMassTemperature and density profilesAlarmsAll measured and calculated data and parametersare available for higher level systems (DCS, MIS, etc.)via an extended number of communicationprotocols.

Outstanding AccuracyAlways exact on levelEnraf Servo gauges series ATG and XTG aremicroprocessor controlled tank level gauges. Themeasuring accuracy is superior to what has beenavailable up to now.Weights & MeasuresEnraf Servo gauges meet the internationalrequirements for custody transfer, confirmed bycertification from Custody & Excise and officialWeights & Measures authorities.Increased SafetyEnraf Servo gauges are approved for use inhazardous areas. The gauges are also provided with aunique lightning protection system to avoid damageby thunderstorms.FeaturesYour Benefits !Modular designSolutions for any applicationCompact and light weightEasy to installDensity measurementAverage density and density profile by the same gaugeGalvanic lightning protectionSafe and reliable under all weather conditionsUser-friendly programmingQuick start-up & programmingHydrostatic tank deformation compensationImproved accuracy without standpipeMultiple interface/level set pointsSediment level, water/product interface level and productinterface level from only one gaugeTurbulence integratorNo need for stilling wellExtended test function and diagnosticsEasy verification of accuracy, repeatability, etc.Few moving partsHigh MTBFOption slotEasy to upgrade

”The Tank Gauging People”The smart measuring principleLevel measurementThe displacer is suspended from a very strong andflexible measuring wire stored on a measuring drum.The density of the displacer is higher than the densityof the liquid. The displacer on level is partly immersedin the liquid.The basic idea is that the displacer in a liquid producesan upward force equal to the weight of the displacedproduct (Archimedes principle).The apparent weight is the weight of the displacerminus the weight of the displaced product.When emptying the tank, the liquid level startsmoving downwards. The force transducer willexperience an increasing weight, as upward force isno longer acting on the displacer.Smart communication between the force transducerand the servo controller will ensure that the displaceris lowered. The servo motor drives the measuringdrum to unwind measuring wire until the displacer ispartly immersed in liquid again until the measured orapparent weight equals the programmed weight.The process is reversed when filling the tank.The hart of the servo gauge is an advanced and veryaccurate force transducer that continuously measuresthe apparent weight of the displacer.A weight corresponding with the apparent weight ofthe displacer on level is programmed by softwaresettings.In equilibrium condition, the weight of the partlyimmersed displacer balances against the weightprogrammed to be measured by the force transducer.Interface level measurementMeasuring the interface level between two liquids isachieved by sending an interface command to thegauge. This causes the servo motor to move thedisplacer through the liquid to a position where theapparent weight of the displacer balances againstthe programmed interface set point.The programmed interface set point is the weight ofthe displacer minus the upward force achieved by thetwo liquids.Turbulent liquid surfacesThe weight of the displacer always keeps themeasuring wire tensioned, even on turbulent liquidsurfaces. This also means no drifting away from thedisplacer.

The Servo Gauge at a glimpseInterfaceControl roomInventory systemGPSGauge Power SupplySPUServo Processing UnitOutput options: Density Hardwiredalarm contactsXPUoptionsTPUFor connection ofSpot temperature RTDXmission Processing UnitOutput Enraf bi-phase mark For Tank Side Indicator RS-232 C and RS-485(consult factory)HPUFor connection of Hartprotocol transmittersPressure / WaterScoutMPUFor connection ofAverage temperatureelement-MTTAverage temperatureelement-MTTOPUOutput option:4 - 20 mA levelFor connection ofHoneywell protocolPressure transmittersOption boardsAverage temperatureelement-MTTTPUTemperature Processing UnitMPUMultiple Processing UnitHSUHPUHart Processing UnitFor connection ofHart protocol PressuretranmittersOPUHOneywell Processing UnitHSUHart Spot Processing UnitSpot temperatureRTD

”The Tank Gauging People”Servo gauges - guarantee for accuracy and reliabilityOrganizations and StandardsEnraf Servo gauges are approved and fully certifiedby numerous organizations all over the world,including Weight & Measures, Excise andMetrological Institutes.Enraf instruments comply with regulations fromworld leading standardization organizations in thestorage industry.Accreditation’s include:CENELEC EuropeUL/FM USACSA CanadaBASEEFA United KingdomPTB GermanySIM FranceNMI the NetherlandsSEV SwitzerlandBEV/TÜV AustriaKDB/Prochem PolandSAA AustraliaSAA CanadaSIRIM MalaysiaGOS Standard RussiaNEPSI ChinaCCE IndiaMIGAS IndonesiaEnraf is an ISO 9001 certified companyOIMLAPICENISOOrganization International de MétrologieLégaleAmerican Petroleum InstituteComité Européen de NormalisationInternational Standardization Organization.and many others.For all your applicationsEnraf Servo gauges are in use by most leadingcompanies throughout the world. They can be foundon all kinds of bulk storage tanks, storing a widerange of liquids, including:Petrochemical industriesRefineriesIndependent terminalsMarketing terminalsPipeline terminalsGas terminalsChemical industriesFood and beverage industriesAviation fuel supply companiesUtilitiesStrategic oil & gas storage organisationsFor more detailed informationIf you would like more information on the technicalspecifications, please contact your nearest Enrafoffice. Full details are given on the back of thisbrochure.The following Enraf Product Sheets are available ofthe individual Servo gauges: 854ATG series854XTG series

Other Tank Gauging productsSmartRadarThis unique tank gauge - complete with the newest radar technology - isthe very latest development in non-intrusive level measurement systems forbulk liquid storage tanks. SmartRadar gives optimal measuringperformance in any application. Its small size and flexible constructionensure that there are no problems integrating it with existing servo,hydrostatic, or hybrid gauging installations.Hydrostatic Tank GaugingThe Enraf HTG system - the ultimate solution for accurate direct massmeasurement - is an example of trend-setting technology at its best. Thesystem's highly accurate digital pressure transmitters also providecontinuous product density data.Hybrid Inventory Management SystemsIntroduced by Enraf, the Hybrid Inventory Management System (HIMS) is aneasy-to-install combination of hydrostatic and level gauging technology.The system unites the best of Smart Radar and servo gauging techniqueswith digital pressure transmitter technology - for maximum accuracy whengauging level, mass, density, and volume.Tank Inventory Management SystemsEnraf's systems collect and calculate data for effective tank farmmanagement, and can be fully customized to meet specific needs.Information is provided in a range of formats over a series of user-friendlyscreens. A variety of documents and reports can easily be produced.The system includes its own diagnostics routines. Enraf's Tank InventoryManagement Systems have received official recognition from a number ofinternational measurement authorities.DataDIP Tank Gauge SystemThe total tank inventory system that puts you in control. Developed fortanks situated above or below ground - especially at service stations.The system makes use of proven solid-state technology to provide highlyefficient inventory control. It is an effective early warning system forproduct loss and leaks.Other instruments in the Enraf range WaterScout - for product/water interface measurement Multi Temperature Sensor Thermometer (MTT) - for liquid and vapor temperature measurement Portable Enraf Terminal (PET) - for easy commissioning and field configuration Communication Interface Unit (CIU) - for communication between field instruments and management systems Indicators - remote and local, for data in the field or any location AlarmScout level and interface sensors - to prevent overfill and spills

Enraf B.V.Röntgenweg 1, 2624 BD DelftP.O. Box 812, 2600 AV DelftThe NetherlandsTel.: 31 (0)15 269 86 00, Fax: 31 (0)15 261 95 74Email: info@enraf.nlhttp://www.enraf.comChina: Enraf B.V. (Shanghai Rep. Office)# 18-01, Suncome Liauw's Plaza,738 Shangchen Road, Pudong, Shanghai 200120Tel.: 86 21 58311611, Fax: 86 21 58313011France: ENRAF S.a.r.l.ZAC Les Beaudottes, 15 rue Paul Langevin,93270 SEVRANTel.: 33 (0)1 49 36 20 80, Fax: 33 (0)1 43 85 26 48Germany: Enraf GmbHObere Dammstrasse 10, 42653 SolingenPostfach 101023, 42648 SolingenTel.: 49 (0)212 58 750, Fax: 49 (0)212 58 7549Singapore: Enraf B.V. (Singapore Rep. Office)Lam Soon Industrial Building63 Hillview Avenue, # 05 - 03, Singapore 669569Tel.: 65 76 94 857, Fax: 65 76 94 348United Kingdom: Enraf Ltd.Unit 11, Sandridge Park, Porters WoodSt. Albans, Herts AL3 6PHTel.: 44 (0)1 727 843 376, Fax: 44 (0)1 727 842 185USA: ENRAF Inc.500 Century Plaza Drive, Suite 120Houston, Texas 77073Tel.: 1 281 443 4291, Fax: 1 281 443 6776Ch-US-4416.044 - V- 2.1Russia: Enraf B.V. (Moscow Rep. Office)c/o Nucletron - Oldelft2nd Donskoy Proezd, Building 6/4117071 MoscowTel.: 7 095 935 7877, Fax: 7 095 935 7877Ch-IN-4416.043 -V- 2.1

”The Tank Gauging People” Servo tank gauge - the advanced gauging tool Enraf introduced the automatic servo level gauging technology in the mid-fifties. Not long afterwards, we introduced the first Servo tank gauge in history to be certified by the leading Weights and Measures authorities. Innovative ideas are geared towards users satisfaction.