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Ferrite detector - This domain has been registered by BT

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<strong>Ferrite</strong> Meter MF300F+Measure <strong>Ferrite</strong> Content of Austenitic & Duplex Steel• Non-destructive test of the ferrite content in a range of 0.1 to 115FN equivalent to 0.1 to 83% Fe in austenitic and duplex steel.• Robust and portable• Standard or peak measurement of <strong>Ferrite</strong> Number• Estimate of ferrite percentage (70% of FN)• Automatic zero on demandAn Overview• Supplied with 5 transfer standards allowing veracity of instrumentto be checkedIndustrial processing and chemical,plants work at high temperatures andpressures, with often aggressive media and stainless steel is often the materialof choice for these applications. If the ferrite content of the steel steel is too low,then welding of stainless material may crack at elevated temperature or with highstress or vibration. Alternatively, if the ferrite content is too high, the weld may beweaker and corrode.To address the need to measure the amount of ferrite in a sample the WeldingResearch Council introduced the <strong>Ferrite</strong> Number (FN) as standardised value whichrelated to the ferrite content of an equivalently magnetic weld metal.The volume percentage of ferrite can be estimated as about 70% of the FN butthe relationship depends upon the type and origin of the stainless steel used andthe measurement technique.The Diverse <strong>Ferrite</strong> meter MF300F+ measures the <strong>Ferrite</strong> number (FN) ofaustenitic and duplex stainless steel weld material. It <strong>has</strong> a probe that is sensitiveto ferrite content in a 10 mm area to a depth of approximately 1 mm. The instrument is calibrated using thesecondary world standards held at The WeldingFeatures of MF300F+ <strong>Ferrite</strong> MeterInstitute. All 16 standards are used in thecalibration giving an instrument with ameasurement range from 0 to 115 FN. Transferstandards are supplied with the instrumentallowing performance to be verified at any time.• Storage of 52 measurements, downloaded to PC withRS232/USB option• Use with high temperature samples (air-cooled probe option)• Simple measurement with small sample area.• Units selectable between WRC-FN and %Fe.• Calibration with standards traceable to TWI secondary standards• Supplied in carry caseKingfisher House, High Green, Gt. Shelford, Cambridge, UK CB22 5EGTel: +44 (0)1223 84 44 44EMail: sales@diverse-technologies.netWeb: http://www.diverse-technologies.netApplications• Measure ferrite content of stainless steel• Measure ferrite content of alloy• Measure ferrite content of weld depositsOptions• RS232/USB• Charger and rechargeables• Air-cooled probe


About the MF300F+MF300F+ is the latest instrument in the popular range ofmagnetic meters from Diverse. The robust slimline probebenefits from a novel magnetic design with excellentcoupling to the measurement sample. <strong>This</strong> results insensitivity to a small well defined volume and excellentresponse over the full range of ferrite samples.An air-cooled version of the probe allows <strong>Ferrite</strong>measurement of hot samples.The latest software supports calibration over the wholerange of secondary ferrite sample held <strong>by</strong> the TWI. Transfersamples are supplied with a range of FN allowing userverification of the calibration.A new peak mode <strong>has</strong> <strong>been</strong> included. Storage of up to 52measurements is included on the standard instrument.Communication with a PC, via RS232 or USB, is providedas an option including downloading of the measurement log.Calibration/StandardsSpecificationUnitsRangeResolutionAccuracy (10°C-30°C)FN 0 - 10FN 10 - 30FN 30 - 100Accuracy (30°C-300°C)FN 0 - 10FN 10 - 30FN 30 - 100TransferstandardsZeroModeStoragePC DownloadProbeOperating temperatureHumidityWeight in case<strong>Ferrite</strong> Number FN<strong>Ferrite</strong> percentage F%0 - 115 FN0 - 83% F%0.1 FN0.1F%± 0.5 FN± 5% of the reading± 10% of the reading± 1 FN± 10% of the reading± 20% of the readingFive standards,range typically 3 FN to 115 FNAutomatic on demandAverage or peak52 recordsRS232 or USBPencil style, 15mm diameterlength 120mmStandard 0°C-40°CAir cooled 0°C-300°CNon-condensing1.25 kgThe Diverse MF300F+ is calibrated using standards thatare traceable to internationally accepted secondarystandards. The International Institute of Welding in the UK(IIW) developed secondary standards that have <strong>been</strong>tested <strong>by</strong> The Welding Institute,(TWI) according tomethods described in DIN EN ISO 8249 and ANSI/AWSA4.2.The master calibration of the instrument is made againstthese standards. The transfer calibration standardssupplied with the MF300F+ are simulations of themagnetic effect of ferrite number and are each calibratedfor this effect against the IIW standards.Case dimensions210 x 100 x 45 mmMeasurement MethodThe MF300F+ measures using magnetic induction. Amagnetic field is induced from a rare earth magnet intothe sample via a complex magnetic path. Themagnetic field strength is measured and this value isthen used to compute the ferrite content.Ordering OptionsKingfisher House, High Green, Gt. Shelford, Cambridge, UK CB22 5EGTel: +44 (0)1223 84 44 44EMail: sales@diverse-technologies.netWeb: http://www.diverse-technologies.netStandard <strong>Ferrite</strong> meter<strong>Ferrite</strong> meter with air-cooled probeSerial software<strong>Ferrite</strong> meter with thickness optionMF300F+MF300F+ACRS232/USBMF300F+THDIVERSE own the copyright and patents in respect of its products. Due to continuing development, we reserve the right to change any specifications without notice.

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