User Manual
CHAPTER 3. OPERATION 37
Figure 3.26: Statistics Display Screen
Figure 3.27: Statistics Measurements
C
p
=
Hi − Lo
6s
C
p
KProcess Capability Index (Deviation)
C
p
K =
|Hi − Lo| − |Hi + Lo − 2x|
6s
Where,
n Denotes the total number of measurement samples used
for the statistical measurement calculation (equivalent
to Number parameter on display).
x Denotes the measurements. Data are saved into the in-
strument buer for the calculation.
Hi Denotes the upper limit value, which corresponds to the
Hi[] parameter.
Lo Denotes the lower limit value, which corresponds to the
Lo[] parameter.
C
p
, C
p
K > 1.33 Working capacity is Ideal.
1.33 ≥ C
p
Working capacity is qualified.
C
p
K > 1.00, 1.00 ≥ C
p
, C
p
K Working capacity is insuicient.