Olympus NDT Canada 505, boul. du Parc-Technologique Tel. : (418) 872-1155 Québec (Québec) G1P 4S9 Fax. : (418) 872-5431 Canada Web site : www.olympusndt.com

EDDY CURRENT: ECT EXTENDED ASME CALIBRATION TUBE

RECOMMENDED CALIBRATION TUBES

The CT02 ECT calibration tube below provides every defect that is required to perform a good ECT calibration and build strong phase-to-depth curves. In fact, this tube is not only conforming to the ASME standards. In addition, it also provides wall thinning defects in order to help users to perform a more accurate calibration.

ARTIFICIAL DEFECT PARAMETERS IN FUNCTION OF TUBE WT AND OD

Defect Depth (%WT) Diameter Defect Depth (%WT) Diameter

GR10 10 % (internal) - H80 80 % 0.078”

GR20 20 % - H60 60% 0.125”

GR40 40 % - H40 40% 0.188”

GR60 60 % - H20 20% 0.188” (4 holes)

H100a Thru If OD>0.75”, 0.067” Else: 0.052”

H100b Thru If OD>0.75”, 0.125” Else: 0.078”

VARIABLE CHART IN FUNCTION OF TUBE OD

Variable Value

Variable Value

Variable Value

in mm in mm in mm

A 1.25” 32mm D 3.00” 76mm TL 20.50” 521mm

B 1.50” 38mm GLa 1/16” 1.6mm SP_OD OD + 3/4" OD + 19mm

C 3.50” 89mm GLb 1/2" 13mm SP_TCK 3/8” 10mm

GR10 GR20 H100a H80 H60 H40 H20 H100b GR40 GR60

SP01-XXX

GR10

(internal) GR20 H100a H80 H60 H40 H20 H100b GR40 GR60

DIFF (pits)

ABS (wall thinning)