Answer Posted / ravi

measure the height of the tank, up to which this 30000
liter of water makes. take this height as H. By the formula
P=rho*g*h. You can calculate the pressue exerted by this
3000 liers of water in terms of KG/cm2. then convert this
KG in to MMWC, through the relation 1kg=10000mmwc. by
having the HP in terms of mmWc. You can calibrate the DP
level transmitter.

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