Flowline LI40-1001 PodView - Manual (Page 9)

Rev A MN204260 9 of 16
UNDERSTANDING PODVIEW® Step Six
Example #2 (Current Output): in the illustrations below, the 4mA signal is set at 0” (0.0 gallons) and the 20
mA signal is set to 60” (600.0 gallons). In the Vertical Cylindrical Tank, 40” of liquid will output a current signal
of 14.67mA. However, in the Horizontal Cylindrical Tank with End Caps, 50” of liquid will output a current
signal of 15.41mA. A simple loop display set with 4mA = 0 gallons and 20 mA = 600 gallons will show two
different volumes based upon the tank shape configuration. Vertical Cylindrical Tank will show 400.0 gallons
while Horizontal Cylindrical Tank with End Caps will show 428.0 gallons.
Vertical Cylindrical Tank
 10” of liquid will always be equal to 100 gallons
of liquid (1” = 10 gallons).
Horizontal Cylinder Tank with End Caps
 1” of liquid does not equal 10 gallons. The 10”
at the bottom represents a rise of 62.8 gallons
where the change between 10” and 20”
represents an increase of 109.6 gallons.