MFE ENTERPRISES, INC.

Magnetic Flux Leakage

Above Ground Storage Tank Floors

1) Electronics Module2) Battery Box3) Magnetic Bridge4) Sensor

Main Components:

MFE 2412 Mark 2 Floor Scanner

MFE ENTERPRISES, INC.

Alarm

30 12.54

Display

BatteryGain

LowHigh

ONOFF

ONOFF

Reset

MFE 2412 Mk2

MFE ENTERPRISES INC

1 2 3 4 5 6 7 8 9 0 1 2

MFE ENTERPRISES, INC.

MFE 2412 Mark 2 Electronics Module

30 12.54

Display

BatteryGain

LowHigh

ONOFF

Reset

MFE 2412 Mk2

MFE ENTERPRISES INC

1 2 3 4 5 6 7 8 9 0 1 2

ON

1 2

3 4

5 6

7 8

9 10

11

12

Bottomside Slot(Alarm Off)

Alarm

Reset

OFFON

MFE ENTERPRISES, INC.

MFE 2412 Mark 2 Magnetic Bridge

Magnetic FieldThrough Air

N S

Magnetic FieldThrough Steel Floor Plate

Sensor

MFE ENTERPRISES, INC.

Floor Plate

N SSensor

Magnetic FieldThrough Steel

MFE ENTERPRISES, INC.

N S

Floor Plate

Sensor

Corrosion Pit

MFE ENTERPRISES, INC.

Floor PlateCorrosion Pit

N SSensor

MFE ENTERPRISES, INC.

Floor PlateCorrosion Pit

N SSensor

30 12.54

Display

BatteryGain

LowHigh

ONOFF

Reset

MFE 2412 Mk2

MFE ENTERPRISES INC

1 2 3 4 5 6 7 8 9 0 1 2

ON

Alarm

Reset

OFFON

MFE ENTERPRISES, INC.

Influence of Magnet Lift Off on Signal Amplitude

Detection

Threshold

Detection

Threshold

A

B

MFE ENTERPRISES, INC.

Floor PlateCorrosion Pit

Sensor

MFE ENTERPRISES, INC.

MFE 2412 Mark 2

Effect of Magnet Lift Off

Influence of Sensor Lift Off on Signal Amplitude

Detection

Threshold

Detection

Threshold

A

B

MFE ENTERPRISES, INC.

Floor PlateCorrosion Pit

Sensor

MFE ENTERPRISES, INC.

MFE 2412 Mark 2

Effect of Sensor Lift Off

Influence and adjustment for coatings

Detection

Threshold

Detection

Threshold

Detection

Threshold

A

B

C

MFE ENTERPRISES, INC.

Floor PlateCorrosion Pit

Sensor

MFE ENTERPRISES, INC.

Floor PlateCorrosion Pit

Sensor

MFE ENTERPRISES, INC.

Sensor

Floor PlateCorrosion Pit

N SSensor

30 12.54

Display

BatteryGain

LowHigh

ONOFF

MFE 2412 Mk2

MFE ENTERPRISES INC

1 2 3 4 5 6 7 8 9 0 1 2

Alarm

Reset

ONOFF

ON

30 12.54

Display

BatteryGain

LowHigh

ONOFF

MFE 2412 Mk2

MFE ENTERPRISES INC

1 2 3 4 5 6 7 8 9 0 1 2

Alarm

Reset

ONOFF

ON

Floor Coating

MFE ENTERPRISES, INC.

Effects of plate curvature on signal amplitude

Detection

Threshold

Detection

Threshold

Detection

Threshold

A

B

C

MFE ENTERPRISES, INC.

Side to side effect on signal amplitude caused by plate curvature

Detection

Threshold

Detection

Threshold

Detection

Threshold

A

B

C

MFE ENTERPRISES, INC.

Scanner Wheelbase effect with curved surface

Detection

Threshold

Detection

Threshold

Detection

Threshold

A

B

C

MFE ENTERPRISES, INC.

Volumetric influence on signal amplitude

A

B Detection

Threshold

Detection

Threshold

C Detection

Threshold

MFE ENTERPRISES, INC.

MAGNETICCARRIAGE

Sensor

SIDE VIEW

MAGNETICCARRIAGE

Sensor

SIDE VIEW

Topside / Bottomside influence on signal Amplitude

A

B

Detection

Threshold

Detection

Threshold

MFE ENTERPRISES, INC.

30 12.54

Display

BatteryGain

LowHigh

ONOFF

Reset

MFE 2412 Mk2

MFE ENTERPRISES INC

1 2 3 4 5 6 7 8 9 0 1 2

ON

1 2

3 4

5 6

7 8

9 10

11

12

Bottomside Slot(Alarm Off)

Alarm

Reset

OFFON

Alarm

30 12.54

Display

BatteryGain

LowHigh

ONOFF

Reset

MFE 2412 Mk2

MFE ENTERPRISES INC

1 2 3 4 5 6 7 8 9 0 1 2

OFFON

1 2

3 4

5 6

7 8

9 10

11

12

Bottomside Slot(Alarm On)

Alarm

30 12.54

Display

BatteryGain

LowHigh

ONOFF

Reset

MFE 2412 Mk2

MFE ENTERPRISES INC

1 2 3 4 5 6 7 8 9 0 1 2

OFFON

1

2 3

4 5

6 7

8 9

0 1

2

Bottomside Pit(Alarm Off)

1

2 3

4 5

6 7

8 9

0 1

2

Bottomside Defectw/ Topside Pitting(Alarm Off)

30 12.54

Display

BatteryGain

LowHigh

ONOFF

Reset

MFE 2412 Mk2

MFE ENTERPRISES INC

1 2 3 4 5 6 7 8 9 0 1 2

ON

Alarm

Reset

OFFON