Mitutoyo SJ-210 - Rmax (ANSI, VDA), Rz1 Max (ISO1997): Maximum Height

18. Reference Information
No.99MBB122A
18-29
18.5.15 Rmax (ANSI, VDA), Rz1max (ISO1997): Maximum height
Rmax is the sum of the height (Yp) of the highest point from the mean line and the depth
(Yv) of the lowest point from the mean line. (Maximum height)
Divide the evaluation profile into segments based on the sampling length. Then, for each
segment, obtain the sum (Zi) of the highest point from the mean line (Pi) and the lowest
point from the mean line (Vi). Rmax (ANSI, VDA) is the maximum value from among Zi (Zn
in the figure below).
4max ZR 
(In the following figure, the 4th segment, Z4 is the maximum)
Maximum height of Rmax
Evaluation length
SamplingNGPIVJ
Z1
P1
V1
Zi Pi
Vi
Zn
Pn
Vn
//
Rmax