06:02 Jun-04-1999 Michael Trinidad Consultant, API 510 570 & 653 Marine Inspection Service Pty Ltd (MIS), Australia, Joined Jan 2003 138
Re: MFE 2412 Magnetic Flux Leakage Tank Floor Scanner The problem with magnetic flux leakage floorscanning equipment is the sensors being either coil or hall effect are affected by changes in liftoff from the plate under test.
If the surface is extensively scalloped the bouncing around of the machine can give false indications. This can be rectified on some systems by lying thin plywood over the scalloped plate and scanning thru the ply after re-calibrating the instrument first. If the problem is wavy plates where the sensors get sharp changes in lift off not much can be done but to UT back up the area.
For your interest laminations in the plate also can give false indications. On some machines variations in the scanning speed can affect the the defect indications so UT backup is essential for most applications.
09:32 Jun-04-1999 Peter Simpson Director, Ashtead Technology Ltd, United Kingdom, Joined Oct 1999 12
Re: MFE 2412 Magnetic Flux Leakage Tank Floor Scanner We have purchased a number of MFE2412 units over the last few years and have free manufacturers training available on the 9th June at our Aberdeen premises. Anyone interested in attending and discussing these points with the manufacturer are more than welcome to attend.
For those wishing to attend please contact Ian Harvey at email@example.com
Ashtead Technology Ltd Unit 3 Kirkton Avenue Dyce Aberdeen
Tel: +44 (0)1224 771888 Fax: +44 (0)1224 770129
: Does anybody have any experience in using the MFE 2412 Tank Floor Scanner manufactured by MFE Enterprises Incorporated, Texas, USA. We are having problems with floor plates which are not exactly flat.
07:18 Oct-18-1999 Dave Amos Director, - Equipment design and manufacture MFE Enterprises Incorporated, USA, Joined Oct 1999 1
Re: MFE 2412 Magnetic Flux Leakage Tank Floor Scanner I have yet to come across tank floor plates that are exactly flat. May I suggest that attention is paid to wear on the scanner wheels which can lead to excessive grounding of the magnetic carriage. A change in the scanning direction can also help. If warping is extreme it may be necessary to use the smaller scanning head. Some more information on the limitations of this technique can be found on our web page www.mfescan.com