NM014418001

The Karl Deutsch RMG-4015 Crack depth probe RMSQ 0° is a specialized probe designed for use with the Karl Deutsch RMG-4015 Crack Depth Meter. It is a straight (0°) probe that employs the AC potential drop (ACPD) method to measure the depth of surface-breaking cracks in electrically conductive materials.

The key characteristic of the RMSQ series of probes is its square-shaped arrangement of the four contact pins. This unique configuration is particularly advantageous for taking measurements on very small or strongly curved surfaces where traditional linear pin arrangements might not make consistent contact.

Like other probes compatible with the RMG-4015, the RMSQ 0° probe utilizes a four-pole technique. Two outer contact pins introduce a controlled alternating current into the material being tested, while the two inner pins precisely measure the resulting voltage drop across the crack. The RMG-4015 instrument then uses this voltage drop to calculate and display the crack depth based on the material's electrical properties.

Karl Deutsch probes are known for their quality construction, and the RMSQ 0° likely features spring-loaded and gilded contact pins. This design ensures reliable and consistent electrical contact with the test surface, which is crucial for accurate ACPD measurements, even on slightly uneven materials. The contact pins are typically designed to be exchangeable to prolong the life of the probe.

Unlike some other probes in the RMG-4015 range, such as the RMSL-S series, the RMSQ 0° probe does not include an external magnet. Therefore, the user will need to ensure stable and consistent positioning of the probe on the test surface by hand during the measurement process.

The 0° orientation of this probe makes it ideal for measuring the depth of surface cracks that are generally perpendicular to the material's surface. The RMSQ 0° probe can be used on a variety of electrically conductive materials, including steel, iron, austenite, aluminum, copper, and brass, although the specific measuring range may vary depending on the material's conductivity.