yeah you are right , I'll help you with that, quick explanation, empty the displacer chamber by 0% level check and adjust zero screw of the transmitter for 4mA transmitter output next is fill the displacer chamber with 100% liquid, and check adjust the spam screw of transmitter for 20mA transmitter output. I hope I manage to help you.
This explains the "why." The title suggests you are going to explain the "how." :P
yeah you are right , I'll help you with that, quick explanation, empty the displacer chamber by 0% level check and adjust zero screw of the transmitter for 4mA transmitter output next is fill the displacer chamber with 100% liquid, and check adjust the spam screw of transmitter for 20mA transmitter output. I hope I manage to help you.