NUS-4
Seite 24
NUS-4 K05/0216
P25: - - - a Selection of Echo within the measuring window
A so-called measuring window is formed around the echo signal. The position of this
measuring window determines the flight time for calculation of the distance to the target. (the
picture below can be seen on the test oscilloscope)
Received
signal
amplitude
Echo 1.
Echo 2.
Some applications involve multiple ( disturbing) echoes even within the measuring
window. Basic echo selection will be done by the Quest + software automatically. This
parameter only influences the echo selection within the measuring window.
a
Echo in the
window to be
selected
Remark
0
With the highest
amplitude
For most applications (both with liquids and solids)
1
First one
For liquids applications with multiple
echoes within the Measuring Window
FACTORY DEFAULT: 0
P26:
Level elevation rate (filling speed) (m/h)
P27:
Level descent rate (emptying speed) (m/h)
These parameters provide additional protection against echo loss in applications involving very
heavy fuming.
The parameters must not be smaller than the fastest possible filling/emptying rate of the actual
technology.
For all other applications, use the factory default setting.
FACTORY DEFAULT
:
2000 for both
P26
and
P27
