Martel Electronics 320 - Manual (Page 24)

Note that the input will be a pressure value for P/I or
P/P transmitters, and will be a voltage or milliamp
value for an I/P or E/P transmitter.
After the input zero is entered, the next screens will
prompt for input full scale, output zero, and output full
scale:
After the zero and full scale values are entered, the
operator will be prompted to define the type of
instrument being calibrated.
22
enter input FS
+ 100 ?????
enter output z
+ 4 ?????
enter output FS
+ 20 ?????