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- since 1996 -
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Technical Discussions
Mark Badrick
Inspection
Bahrain Petroleum Co, Bahrain, Joined Oct 1999, 11

Mark Badrick

Inspection
Bahrain Petroleum Co,
Bahrain,
Joined Oct 1999
11
03:05 May-01-1999
MFE 2412 Magnetic Flux Leakage Tank Floor Scanner

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.


 
 Reply 
 
Michael Trinidad
Consultant,
LMATS Pty Ltd , Australia, Joined Jan 2003, 138

Michael Trinidad

Consultant,
LMATS Pty Ltd ,
Australia,
Joined Jan 2003
138
06:02 Jun-04-1999
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.




 
 Reply 
 
Peter Simpson
Director,
Ashtead Technology Ltd, United Kingdom, Joined Oct 1999, 12

Peter Simpson

Director,
Ashtead Technology Ltd,
United Kingdom,
Joined Oct 1999
12
09:32 Jun-04-1999
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 ian@ashtead-technology.com


Ashtead Technology Ltd
Unit 3 Kirkton Avenue
Dyce
Aberdeen

AB21 0BF

Tel: +44 (0)1224 771888
Fax: +44 (0)1224 770129

www.ashtead-technology.com


: 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.




 
 Reply 
 
Dave Amos
Director, - Equipment design and manufacture
MFE Enterprises Incorporated, USA, Joined Oct 1999, 1

Dave Amos

Director, - Equipment design and manufacture
MFE Enterprises Incorporated,
USA,
Joined Oct 1999
1
07:18 Oct-18-1999
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


 
 Reply 
 

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