DP Level Calibration (Diaphragm Seal) with Capillary

H = 100 Inch (Center to Center)
SG Process Liquid = 1
h = 50 Inch
Fill fluid SG = 2.1
What is the calibrated range? what is the required URV and LRV of DP transmitter for cases below:
1. The first case (atmospheric) are as follows: 





To find the range 0% -100% level of process fluid in the tank with the DP value of the corresponding Type Level Instruments are as follows:
0% -> In this condition, fluid fills in the capillaries has been applying pressure to the sensor even though the tank is empty. DP received by the sensor is of the fill fluid in capilary InFillFluid or 50 h for InFillFluid that has SG = 1.2. To make bersatuan InH2O then converted InFillFluid 50 = 50 x 1.2 = 60 InH2O.
100% -> In this situation experienced by the DP is the pressure sensor (process fluid) + (fill fluid). The pressure sensor is received (100 InH2O) + (60 InH2O) = 160 InH2O.
60 InH2O Rangenya is calibrated to 160 InH2O.
2. The second case (atmospheric) are as follows: 




To find the range 0% -100% level of process fluid with DP values of the corresponding Type Level Instruments are as follows:
0% -> On the conditions of process liquid tank is empty, the sensor will receive a negative DP because it is situated higher than the tapping point kapilary (Zero Elevation). Is this because of pressure disuck vacuum conditions or aspirated? I do not think so. DP nagative because the head process liquid level h and H will push each other in opposite directions. The higher level of process liquid, the higher the pressure the opposite of the head h. Head pressure amounted to 50 h InFillFluid = 60 InH2O but negative or - 60 InH2O.
100% -> In this case DP suffered from the pressure sensor is the process of fluid-pressure fluid fills. The pressure sensor is received (100 InH2O) - (60 InH2O) = 40 InH2O.
-60 InH2O Rangenya is calibrated to 40 InH2O.
3. The third case (the roof closed tanks) are as follows:
To find the range 0% -100% level of process fluid with DP values of the corresponding Type Level Instruments are as follows: 




0% -> In this case fill fluid in the capillaries has been applying pressure to the sensor on both sides although the tank is empty. The pressure received by the sensor from the Hi-side (under the tapping point) is approximately h or 50 InFillFluid InFillFluid that has SG = 1.2. To make the 50 InFillFluid bersatuan InH2O converted into 50 x 1.2 = 60 InH2O from the Hi-side. Lo received the pressure-side sensor (tapping point above) is approximately H + h InFillFluid or 150 InFillFluid that has SG = 1.2. To make bersatuan InH2O InFillFluid then converted 150 into 150 x 1.2 = 180 InH2O. Well yes both sides of the pressure tank is empty even though huh? DP at the level of 0% is obtained by subtracting the pressure (Hi-side) - (Lo-side). Level 0% = (60 InH2O) - (180 InH2O) = - 120 InH2O. Why if the tanks are there in a gas or vapor and with Hi-and Lo-side tapping point then by subtracting each method (remember DP = difference) is the pressure of gas / vapor at the liquid surface will eliminate each other by itself.
100% -> In this situation experienced by the DP sensor is of the (process fluid pressure) + (Hi pressure fluid fills) - (Lo pressure fluid fills). DP received by the sensor is (100 InH2O) + (60 InH2O) - (180 InH2O) = -20 InH2O. Gas or vapor pressure above the liquid does not need to be considered because it would eliminate each other on the Hi and Lo side by itself.
Rangenya is calibrated to -20 -120 InH2O InH2O.
4. The fourth case (roof closed tanks) are as follows: 




To find the range 0% -100% level of process fluid with DP values of the corresponding Type Level Instruments are as follows:
0% -> In this condition, fluid fills in the capillaries has been applying pressure to the sensor from both sides even though the tank is empty. The pressure received by the sensor from the Hi-side (under the tapping point) is approximately h or 50 InFillFluid InFillFluid that has SG = 1.2, but negative. To make bersatuan InH2O then converted into InFillFluid -50 -50 -60 InH2O x 2.1 = Hi-side from the side. Lo received the pressure-side sensor (tapping point above) is for HH InFillFluid or 50 InFillFluid that has SG = 1.2. To make the 50 InFillFluid bersatuan InH2O converted into 50 x 1.2 = 60 InH2O. Well yes both sides of the pressure tank is empty even though huh? DP at the level of 0% is obtained by subtracting the pressure (Hi-side) - (Lo-side). DP on Level 0% = (-60 InH2O) - (60 InH2O) = - 120 InH2O. Well if, in the tanks already have a gas or vapor and with Hi and Lo-side methods of tapping points with each other then subtracting (remember DP = the difference) is the pressure of gas / vapor at the surface of the liquid will eliminate each other by itself.
100% -> In this situation experienced by the DP sensor is of the (process fluid pressure) - (Hi pressure fluid fills) - (Lo pressure fluid fills). DP received by the sensor is (100 InH2O) - (60 InH2O) - (60 InH2O) = -20 InH2O. Gas or vapor pressure above the liquid does not need to be considered because it would eliminate each other on the Hi and Lo side by itself.
Rangenya is calibrated to -20 -120 InH2O InH2O.