3 March 2015, 00:00
The latest development from ifm electronic features an innovative operating principle and has a pressure rating of up to 500 bar. With a one-piece metal housing, the MFH / M9H series units are extremely robust. Moreover, they offer protection rating IP 65/68/69K for harsh environments and temperature stability from -25 to 120 °C.
New function principle and many applications
The technology relies on an MR measuring cell biased with a permanent magnet all in one housing, so only ferrous metals, like tool steel, are detected and an external magnet is not necessary. Other metals such as aluminium or stainless steel do not have any effect on the sensor. The units can not only be used as limit switches in hydraulic cylinders, but also on other hydraulic components like valves or pumps, in mechanical engineering or in the process industry.
The MFH design offers a bursting pressure exceeding 2000 bar.
Advantages
The full-metal housing is made from a single piece and assures permanent mechanical resistance to pressure fluctuations, shock and vibration. By contrast, ceramic active surfaces, however, can be easily damaged by impacts. The high temperature stability allows the unit to maintain its full functionality both in extremely hot machines and in outdoor applications in direct sunlight. The new easy-to-mount sensors come with a M12 or M14 housing. High performance at a very attractive price.
Source: ifm electronic gmbh