Endress+Hauser Proservo NMS83 Operating Instructions Manual page 250

Operating menu
250
"Tank calculation" submenu
Navigation  Setup → Advanced setup → Application → Tank calculation
"HyTD" submenu
Overview
Hydrostatic Tank Deformation can be used to compensate the vertical movement of the
Gauge Reference Height (GRH) due to bulging of the tank shell caused by the hydrostatic
pressure exerted by the liquid stored in the tank. The compensation is based on a linear
approximation obtained from manual hand dips at several levels divided over the full
range of the tank.
 70 Correction of the hydrostatic tank deformation (HyTD)
A "Distance" (level below L → "HyTD correction value" = 0)
0
B Gauge Reference Height (GRH)
C HyTD correction value
D "Distance" (level above L → "HyTD correction value" > 0)
0
Proservo NMS83
A0028723
Endress+Hauser