Digital Magnetic Field Strength Meter TFT RT1 is suitable for continuous, pulsating, alternate, tangential magnetic fields and residual magnetism with polarity indication − two devices in one. The probes are specifically designed for magnetic field measurements during magnetic particle inspection.

The Quantitative Quality Indicators (QQIs) are one of the most used method of assuring proper field direction and adequate field strength. A Gaussmeter is frequently used together with QQIs to set up the inspection procedure for a specific component. Wet method is the only one applicable, and like other verification devices, they can only be used with continuous magnetization.

The QQI is a thin strip of either 0.002” or 0.004”-inch-thick AISI 1005 steel. A photoengraving process is used to inscribe a specific pattern, such as concentric circles or a plus sign. QQIs are normally 3/4 inch square, but smaller shims are also available. QQIs must be positioned in close contact with the tested piece.

In compliance with: ASTM E 1444; ASME V ART.7

The Reference Block Type I / MTU Test Block is a prompt test of magnetic ink effectiveness. The cracks on both surfaces are obtained by quenching and range from 0.1 to 1µm in size. The Reference Block Type I / MTU Test Block can be used with fluorescent or visible magnetic particles.

In compliance with: UNI EN ISO 9934-2; ASTM E1444

The digital luxmeter is an instrument used for measuring light intensity (white light), with spectral sensitivity close to the standard Cie photopic curve. The light meter is equipped with a sensor connected by flexible cable, which allows to easily take readings where necessary, with 3 1/2 digit LCD display for quick and accurate reading of measurements, and it includes a support stand for further convenience.

The radiometer is an easy-to-use tool that measures the light intensity of UV lamps (Wood lamps). The measure is expressed directly in μW/cm², as required by standards.

The standards require periodical checks of magnetic particle inspection equipment has to be periodically checked to maintain its original performance (calibration verification). One of such checks has to be performed on the ammeters installed on the MT system. For this purpose, CGM offers a set including standard ammeters for alternating and rectified current and the related shunts.

This very complex sample, 400 x 30 x 10 mm H in size, containing a series of holes of various diameters positioned at different depths and directions that simulate subsurface discontinuities, allows an extremely effective verification of the MT system performance. The sample can be placed between the heads or inside a low fill factor coil (coil diameter at least ten times larger than the sample).