A-A-58049B
3.2 The unit shall be capable of performing magnetic particle inspection processes as described
3.3 The unit shall be capable of magnetizing a work piece in the longitudinal and circular
directions.
3.4 The maximum contact head:
Size I 52 + 2 inches
Size II 100 + 2 inches
3.5 The overall length of the unit shall be as follows:
Size I no greater than 73 inches
Size II no greater than 124 inches
3.6. Instruments for inspection shall be conveniently located to permit the operator manipulation
and viewing from the inspection station.
3.6.1 Digital ammeter shall display AC root mean square (RMS) amperes or DC amperes at the
coil or contact. The meter shall incorporate a sample and hold the display that will be reset after
magnetizing or demagnetizing current push button is depressed.
3.6.2 The current control shall be continuously variable.
3.6.3 The magnetization activation switch shall be of a type that can be activated by a knee push
bar.
3.6.4 The magnetization time shall be variable from 0.20 to 2.0 seconds.
3.6.5 The headstock pressurization shall be foot switch activated
3.6.6 The coil shall be rail mounted, have an inside diameter of 16 inches, and be capable of
producing 15,000 Ampere-turns AC and DC.
3.7 The unit shall be capable of demagnetizing any work piece previously magnetized by the
same unit to less than three gausses in any directions. Both reversing DC and AC ramp
demagnetization capabilities shall be built into the unit.
3.8 The operating air pressure range shall be at least 60 to 110 PSI.
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