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This facilitates direct marking of the defectpositions on the bottom plate surface forfurther investigation. Additionally,there are“sketch”plates or other restricted areas thatthe standard bottom scanner will not fit on orscan.To reduce the areas which cannot bescanned,the smaller motorized MFL Mini-Scanner and MFL Manual Scanner are available.HMT’s inspection reports generate a fullfingerprint of the tank bottom. These reportsinclude on which side the defect is located;andby using an x,y coordinate system,indicatespecific positions on the individual plate,andits depth and remaining plate thickness.Thesefeatures give the tank owner/operator apowerful,cost effective tool to highlight all of the areas requiring repair,usuallykeyfactorsinestablishingcorrosion rates and next inspectionintervals for API Standard 653.Contact your local HMT representative todiscuss the full suite of products and servicesthat will satisfy all your AST needs.HMT offers the latest in NDE equipment fortank bottom inspection including the MagneticFlux Leakage (MFL) bottom scanners. MFLbottom scanning is also known as MFE(Magnetic Flux Exclusion/Evaluation). MFL isthe“best”method to evaluate a tank bottomcondition quickly and cost effectively.HMT’s bottom scanner is a steerable motorizedcorrosion detection instrument used inaboveground storage tanks to detect metalloss due to corrosion. MFL technology inducesa magnetic field into the steel plates and thenevaluates any disturbance in the magneticfield. When the magnetic field is disturbed,possible metal loss (either product side or soilside) has occurred and must be evaluated“proved-up”. The HMT bottom scanner features“stop on defect”functionality.When metal lossis detected the machine automatically stops,thus reducing human error resulting frommissing a screen signal. TankBottomScannersMagneticFluxLeakage(MFL) Key Benefits Provided byHMT’s Inspection Serviceswith the Magnetic FluxLeakage (MFL) Include: ã EvaluatesTank Bottom Condition on BottomPlates of Ferrous Materialã Quick and Cost Effective and Requires noCouplant thus is a“Dry Application”ã Steerable Fast Motor Driven Scannerã Features“Stop on Defect”Functionalityã RuggedizedTouch ScreenTechnology forEase of UseWithin the StorageTank Environmentã Available with the Full Sized MFL Scannerand/or with the Smaller Motorized MFLMini-Scanner and MFL Manual Scanner HMT Inc. 24Waterway Avenue, Suite 400 TheWoodlands,Texas 77380Ph: +1.281.681.7000Fax: +1.281.419.7689Locations worldwide to serviceall your AST needs.Visit us at www.hmttank.com 3/09
