Flowserve MX Actuators - Manual (Page 9)

Modutronic & Analog Position Transmitter (APT)
If you have these options, setting the open and close limits will automatically calibrate zero and span
of the Modutronic and APT (Analog Position Transmitter) actuators. The 4-20 mA signal will default
to 4 mA at close and 20 mA at open. To change from the default setting, see Bulletin LMENIM2306,
Installation and Operation for MX-05 through MX-140.
Set Options