Answer / r_vaya

Your total lenth is 490 

Now in case of tank is fully filled with the Lighter fluid your transmiter will show 127.4 

And when tank is fully filled with the Heavier fliud tx will show 264.6

Thus ,
Lrv- 127.4
Urv- 264.6

Answer / ashish namdev, bina refineries

Your Que have some mistakes in SG Data

After removed mistakes you wll got
URV=264.6
LRV=127.4

Answer / narayan

TAKE THE DIFFERENCE IN SG
0.54-0.26, YOU GET 0.28
590 * 0.26=127.4 MM
HENCE LRV =0MM
URV=127.4MM

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