KROHNE OPTIWAVE-M 7400 C Short Manual page 48

OPERATION
4
Menu Function
No.
C2.7 Mult. Refl.
Enable
C2.8 Empty
Spectrum
Enable
C3 Conversion
C3.1 Edit Table
C3.1.1 Erase Table?
C3.1.3 Select
Conversion
C3.2 Input Table
C3.2.2 Point
48
Function description
Multiple reflections will cause the device to
display smaller level readings. Installation of
the device on a manhole or at the centre of a
dome roof, and high dielectric products (εr >5)
can cause multiple reflections. A very calm
surface or a tank with a small convex or flat
roof can also cause multiple reflections.
If this function is in operation, the device looks
for the first signal peak below the process
connection. This signal peak is then used to
measure the level of the tank contents. If this
function is not in operation, the device looks for
the largest signal below the process connection.
Minimum access level to change the
setting: Expert
This function starts and stops the interference
signal filter. Interference signals are the result
of fixed and moving obstacles inside the tank. If
you must do a spectrum analysis, record an
empty spectrum first. Do the "Empty Spectrum"
procedure (menu A4.2) in the Quick Setup
menu.
Minimum access level to change the
setting: Expert
Before you can make a conversion table, you
must delete the data that is stored in the device
at this time. If you set this menu item to "No"
you will go back to menu C3.1. If you set it to
"Yes", you will go to menu item C3.1.3 Select
Conversion.
Minimum access level to change the
setting: Expert
If you must make a volume conversion table, set
this menu item to "Volume". If you must make a
mass conversion table, set this menu item to
"Mass". If you must make a linearization table
to make sure that the readings always agree
with reference measurements, set this menu
item to "Linearization".
Minimum access level to change the
setting: Expert
This adds a point on the conversion table. Each
time you enter this menu item, this number
will automatically increment by 1 point. If it is
necessary to change the data for a point,
change the point number. When you push [^],
you go to menu item C3.2.4 Level.
Minimum access level to do the procedure:
Expert
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OPTIWAVE-M 7400 C
Selection list
Disabled, Enabled
Disabled, Enabled
Yes, No
Volume, Mass,
Linearization
min-max:
001...050
02/2019 - MA OPTIWAVE-M 7400 C R01 en
Marine Default
Disabled
1
Disabled
No
Volume
001