Emerson Rosemount 5408 Reference Manual page 127

Figure 7-11
emptied.
Figure 7-11:
Procedure
1.
2.
3.
4.
5.
Bottom product dielectric constant
Enter the product dielectric constant for the product in the bottom of the tank.
Maximum projection distance
This defines the range in which the function operates. Enter the maximum distance from
the zero level (tank bottom). It is recommended to use the default setting.
Minimum tank bottom echo amplitude
Enter the minimum allowed amplitude for the echo from the tank bottom before this
function is activated. It is recommended to use the default setting.
Enable bottom echo visible when tank is empty
Enable the Bottom echo visible when tank is empty parameter if a bottom echo is visible
when tank is empty (i.e. for flat tank bottoms). The bottom echo will then be treated as a
disturbance echo to facilitate tracking of weak surface echoes close to the tank bottom.
This function may be useful for products which are relatively transparent for microwaves,
such as oil.
Rosemount 5408 and 5408:SIS Level Transmitters
illustrates an example of the Tank Bottom Projection when the tank is being
Tank Bottom Projection
Level
Enabled
In Rosemount Radar Master Plus, under Configure, select Level Setup > Advanced.
Under More Advanced Options, select Empty Tank Handling.
In the Tank Bottom Projection list, select Enabled or Disabled.
If you enabled Tank Bottom Projection, then:
a. Set the Bottom Product Dielectric Constant.
b. Enter Maximum Projection Distance.
c. Enter Minimum Tank Bottom Echo Amplitude.
Select Save.
Level
Disabled
Time
Service and Troubleshooting
Time
117