Unipulse f395 Operation Manual page 131

16.Code Setting
117
A
X
B
R
Q
P
2X
O
1.5X
A
X
B
A'
A
B'
B
True Relative Maximum Value
True Relative Minimum Value
Relative
Maximum Value
Relative
Minimum Value
First, when difference X between point A
and point B is larger than the "Minimum
Peak and Valley Difference", point A is
judged as the relative maximum value,
and point B as the relative minimum
value.
When relative maximum value A and
relative minimum value B are detected
and difference X between them exceeds
4X
the set detection level (1/4 ~ 4 times), A is
3X
displayed in the relative maximum value
hold mode at each point in time (point R
on a 4-times level, for example), or B is
displayed in the relative minimum value
hold mode, when the state is brought into
a hold condition.
If two or more relative maximum and
relative minimum values appear in the
waveform, the relative maximum and
r e l a t i v e m i n i m u m v a l u e s a r e h e l d
a ccording to the "Peak and Va lley
Ordinal" setting. For example, if "2" is
set, A' and B' are held as the relative
m a x i m u m v a l u e a n d t h e r e l a t i v e
minimum value, respectively.
I f t h e " M i n i m u m P e a k a n d Va l l e y
Difference" value is too small, when the
waveform contains noise as shown in the
illustration on the left-hand side, the noise
may be regarded as the relative maximum
value and relative minimum value, so that
correct values may not be able to be held.
Confirm the input waveform on the
screen, and set appropriate values.