13
Getting Started
(continued)
Step Two
Example #4 – Cone Bottom Tank
Tank G
and
Tank H
are both vertical tanks that are
being supported above ground level with tank
stands. The location of the Sensor Height (Tank G
- bottom of tank or Tank H – ground level) will
influence the Fill-Height setting.
Note:
Fill-Height
must always be referenced to the
lowest location of the Sensor Height.
Since
Tank G
is off of the ground, the lowest
location may be difficult to identify/measure. This
location is required if the Volumetric Mode in
LVCN414-SW software is used.
Tank H
uses ground level as the main reference
location. This method is easiest to use and ideal
for using the Distance Mode of LVCN414-SW
software.
Cone and Rounded Bottom Tanks
The location of an LVU500 series
installed along the top of a cone or rounded bottom tank may have an effect
on the installation of the sensor. Be sure to understand the geometry directly underneath the sensor. Cone or
rounded bottom tanks will provide off angled surfaces that can reflect the ultrasonic sound energy away from
the sensor as the liquid level is lowered.
#1 Center of Cone
#2 Above an Angled Tank
Bottom (straight side only)
#3 Above an Angled Tank
Bottom (full range)
Tank
Geometry
Does not impede sensor’s
performance. Sensor is able
to track the entire range of
the tank.
Does not impede sensor’s
performance as long as the
level remains within the
straight side of the tank wall.
Does
impede
sensor’s
performance. The angled
bottom will reflect ultrasonic
energy away from the
sensor.
Distance
Reading
Sensor Height
is typically
set to the bottom of the tank.
Sensor will track the full
range of the tank.
Sensor Height
is typically
set to the bottom of the
straight side. Sensor will
only tack the straight side of
the tank.
Sensor Height
is set to the
bottom of the tank; the
sensor will function as long
as the level is within the
straight side of the tank.
