Endress+Hauser Prosonic S FMU90 - Actual Distance N; Check Distance; Distance too Small; Distance too Big

The "level" menu
30
2.1.8 "LVL N check value" (N = 1 or 2)
L00-FMU90xxx-19-00-00-de-016
"actual distance N" (N = 1 or 2)
Displays the currently measured distance D
display
.
"check distance"
Use this parameter to state if the displayed distance D
display
matches the real distance D (measured
by a rule for example). Based on your selection, the Prosonic S automatically proposes a suitable
range of mapping.
You have got the following options:
• distance = ok
Choose this option if the displayed value D
display
matches the real distance D.
After selecting this option, the Prosonic S changes to the "LVL N distance mapping" parameter
set. The preset range of mapping is identical to D. That means: all interference echos above the
current product surface will be suppressed by the mapping curve.
• distance too small
Choose this option if the displayed value D
display
is smaller than the real distance D.
In this case the currently evaluated echo is an interference echo.
After selecting this option, the Prosonic S changes to the "LVL N distance mapping" parameter
set. The preset range of mapping is slightly larger than D
display
. Therefore, the currently evaluated
interference echo is suppressed by the mapping curve.
If after the mapping D
display
is still too small, repeat the mapping until D
display
matches the real
distance D.
• distance too big
Choose this option if the displayed value D
display
exceeds the real distance D.
This error is not caused by interference echos. Therefore, no interference echo suppression is
performed and the Prosonic S returns to the "level 1(2)" submenu. Check the calibration
parameters, especially the "empty calibration" and the "application parameters".
• distance unknown
Choose this option if you do not know the real distance D.
In this case, an interference echo suppression can not be performed and the Prosonic S returns to
the "level 1(2)" submenu.
• manual
Choose this option if you want to define the range of mapping manually.
⇒
LVL1 check value L100B
act. distance 1:
check distance:
L100B
LVL1 dist. corr.
act. distance:D
D
display
D
display
=D
D
display
>D
D
display
<D
?
check distance: