Answer / mohamed yousuf

i will give u an example how to calibrate the pressure
transmitter,if u calibrate the pressure transmitter in the
range of 4 to 50psi, by using the hart callibrator we can
clibrate it

step1:apply the preesure of 4psi and adjust the transmitter
to 4ma
step2:apply the pressur of 50psi and adjust the transmitter
exactly to 20ma this is called span setting

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