- The ALPA FACEtest 25 roughness tester is simple and extremely easy to use | Ideal for measuring parts even directly on workstations or in production machines | Thanks to its internal memory, easy handling and integrated battery ALPA FACEtest 25 is suitable for measurements under difficult conditions on large or complex parts | Allows measurement of 31 parameters with graphical display | Provides advanced analysis typical of a laboratory instrument | Immediately displays roughness profile, primary profile and lift profile graphs | Equipped with 90° rotatable touch probe and 2" TFT graphical display | Measuring range µm ±300 | Resolution µm 0.001
ISO 4287 | Ra, Rq, Rt, Rz, Rp, Rc, Rv, Rsm, Rdc, Pa, Pq, Pt, Pp, Pc, Pv, Psm, Pdc, RPc, PPc - Rk, Rpk, Pvk, Mr1, Mr2 - Pt, R, Rx, AR-R3, R3zm, Rmax