re-range the transmitter via a wet calibration method using the external zero adjustment screw and the range setting switch on the integral indicator. the required level range for this step is 20 to 80% (i.e. when the level in the vessel is 20% the tx output should be 4 mA, and when the level in the vessel is 80% the tx output should be 20mA). the procedure for re-ranging using the external zero adjustment screw and the range setting switch on the integral indicator is described
after performing the re=range of the transmitter, repeat step2, this time filling in table5