May 2016
Reference Manual
00809-0100-4530, Rev DD
311
Figure C-10. The Probe End Projection Function
Note
It is important that the Probe Length and product Dielectric Constant are given with high
accuracy.
Note
This function is only available for Liquid/solid product
level
measurement modes (i.e. not
available for interface or fully submerged interface measurement modes) and a well defined
probe end echo (i.e. ensure that the probe end/centering disc/weight is either always in
contact with the tank wall or never in contact with the tank wall).
C.5.1
Guided Probe End Projection setup
Note
Assure that the Mounting Type, Probe Type, and Probe Length have been assigned correct
values before configuring the Probe End Projection.
Probe End Projection can be configured using a guide. When the tank is empty, the guided
setup will be able to accurately calibrate probe end offset and probe end pulse polarity. You
will be asked to insert an initial value for the Product DC. This is the value for the product
dielectric constant that the device uses as a start point for estimation. This value must be as
accurate to the actual value of the dielectric constant as possible.
When the tank is filled, the guided setup will be able to estimate the Product DC. This value
is used as an initial value for future estimation of the Product DC.
Apparent Probe End position
Surface pulse is
missing due to low
product reflectivity
Actual Probe End position
D
Probe End pulse
The product Level is given by
the relation between Probe
End displacement
, the
Dielectric Constant of the
product, and distance D