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RMG 4015 Crack Depth Measurement

RMG 4015 Crack Depth Measurement

RMG 4015 Crack Depth Measurement

Product catalog summary
Introduction
The RMG 4015 is a crack depth gauge designed for measuring the depth of surface cracks in metals, particularly useful after Magnetic Particle Testing (MT) or Penetrant Testing (PT). It helps evaluate crack extension, orientation, and inclination, aiding in decisions regarding specimen rework and monitoring crack growth over time.

Advantages
The RMG 4015 utilizes alternating current (AC) to exploit the skin effect, ensuring accurate contour following of cracks. It is a portable, battery-operated device that combines current generation, measurement, and microprocessor-based evaluation. It is optimized for steel, iron, and austenitic materials, with calibration methods for precise measurements.

Measurement Technique
The device employs the potential drop method with AC, where a constant current is passed through the workpiece, and the voltage drop is measured to determine crack depth. It is effective for both normal and inclined cracks, with automatic frequency adjustments for inclined cracks.

Probes and Accessories
Various probes are available for different crack types and locations, including:
  • Probe RMSQ 0° for normal cracks in difficult locations.
  • Probe RMSL 90° for normal cracks in bore holes and tubes.
  • Special probes for complex surfaces and narrow gaps.
Each probe includes spare contact pins and other accessories.

Technical Specifications
The RMG 4015 measures cracks in ferrous materials up to 99.9 mm and in non-ferrous materials like aluminum up to 12 mm. It features a memory for 3850 values, statistical evaluation, and interfaces for printers and PCs. The device operates between 0°C and 45°C and is powered by AA batteries.

Conclusion
The RMG 4015 is a versatile and reliable tool for crack depth measurement, offering ease of use, portability, and adaptability to various materials and crack types. It is supported by a range of accessories and technical literature for enhanced functionality.
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Catalog excerpts

RMG 4015 Crack Depth Measurement-1

RMG 4015 Crack Depth Measurement

 Open the catalog to page 1
RMG 4015 Crack Depth Measurement-2

RMG 4015 Principle of Measurement You are looking for an easy-to-use instrument to bines current generation, measurement technique measure the depth of surface cracks in metals which you have detected by e.g. Magnetic Particle taken along conveniently to any job site. Testing (MT) or Penetrant Testing (PT)? You want The RMG is optimized for the use on steel, iron to evaluate the extension, the orientation or the and austenitic material. A material specific calibra- inclination angle of the crack so you are able to tion adapts the instrument to distinct electrical make a decision on a possible...

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RMG 4015 Crack Depth Measurement-3

All RMG properties at a glance • Ideal accessory for MT or PT • Small, battery-operated mobile instrument • Low weight (225 g / 8 oz) • Display of the crack depth in mm or inch • Menu-guided operation • Crack depth measurement also for inclined cracks in ferromagnetic material; resolution of 10° in steel is possible • Orientation of inclined cracks determinable with special probe setup • Robust probe design • Easy choice of the right probe: Three standard probes are suitable for most workpieces • Special probes for surfaces of complex shape and difficult to access crack locations Sturdy, exchangeable...

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RMG 4015 Crack Depth Measurement-4

Accessories RMG reference block (0-10 mm crack) Charger (230 V) for inserted rechargeable batteries Rechargeable battery set NiMH (2x1.2 V, size AA) External charger 230 V for NiCd/NiMH batteries (4 x size AA) Matrix printer (incl. 230 V mains unit, paper roll, printer ribbon) Printer cable RMG 4015 for matrix printer 6010 PC cable RMG 4015 for RS232C interface (PC) Fitting tool to replace probe contact pins Protective bag for RMG 4015 Literature: Crack depth measurement by Prof. Dr. V. Deutsch Order no. Crack depth gauge RMG 4015 4015.003Probes (incl. 1 set spare standard contact pins) Crack...

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