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Rest of MENAFerrite Meter MF300Fm+
Description
MF300Fm+ Product Information
Measurement of Ferrite Number and Ferrite Percentage in stainless steel.
Industrial processing and chemical plants work at high temperatures and pressures, often with aggressive media; stainless steel is often the material of 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 high stress or vibration. If the ferrite content is too high, the weld may be weaker and corrode.
To address the need to measure the amount of ferrite in a sample the Welding Research Council introduced the Ferrite Number (FN) as standardised value which related to the ferrite content of an equivalently magnetic weld metal. The volume percentage of ferrite can be estimated at 70% of the FN but the relationship depends upon the type and origin of the stainless steel used and the measurement technique. The MF300Fm+ uses a transfer curve to convert measured FN to F%.
The Diverse Ferrite meter MF300Fm+ measures the Ferrite number (FN) of austenitic and duplex stainless steel weld material. It has a probe that is sensitive to ferrite content in a 80mm² area to a depth of approximately 1mm. Alternatively there is a small area probe with a sensitive area of 24mm² (4mm×6mm)
The instrument is calibrated using the secondary world standards validated by National Institute of Standards and Technology (NIST) in the USA. All 16 standards are used in the calibration giving an instrument with a measurement range from 0 to 115FN. Transfer standards are supplied with the instrument allowing performance to be verified at any time.
There are 5 MF300Fm+ probe options: P10, P10AC, P46, P10-2, P46-2 (second probe options)
Features of MF300Fm+ Ferrite Meter
| Units | Ferrite Number FN
Ferrite percentage F% |
| Range | 0 – 115 FN
0 – 80.5% (percent ferrite) |
| Resolution | 0.1 FN
0.1 F% |
| Standard: Accuracy (10°C – 30°C)
FN 0 – 10 FN 10 – 30 FN 30 – 110 |
± 1 FN ± 10% of the reading ± 20% of the reading |
| Air cooled: Accuracy (30°C – 300°C)
FN 0 – 10 FN 10 – 30 FN 30 – 100 |
± 1 FN ± 10% of the reading ± 20% of the reading |
| Calibration | Factory calibration to NIST standards
User calibration to supplied transfer standards Up to 5 calibrations can be supplied (for 5 probes) |
| Transfer standards | Five transfer standards
Range typically 3FN to 115FN |
| Zero | Automatic on demand |
| Mode | Average or peak |
| Storage | 1000 records with 4 character records ID (characters available 0-9, A-Z and space) |
| PC Download and Upload | Optional RS232 and USB
Functions include download of record or part or entire database and upload of record IDs |
| Probe P46 | Pencil style, 15mm diameter length 130mm
Sensing area 4mm×6mm (24mm²) Sprung loaded sleeve |
| Probe P10 | Pencil style, 15mm diameter length 120mm
Sensing area 10mm diameter (- 80m²) |
| Operating temperature | Standard 0°C – 40°C (P46 and P10)
Air Cooled 0°C – 300°C (P10ac) |
| Air cooled operation | Air line supply regulated to 1 bar maximum
Oil filtered supply desirable Air temperature: ambient (10°C – 30°C) |
| Humidity | Non-condensing |
| Weight in case | 1.25Kg |
| Case dimensions | 210×100×45mm |
Request a free quotation.
Watch the MF300Fm+ in operation.
Additional information
Questions? Ask our specialist team for NDT help or advice