The first release pump control cards have three analog inputs for connection to transducers such as pressure and flow transducers.
Each 4-20mA has a dedicated positive terminal for loop powered transducers.
Many FLow meters are active outputs rather than loop powered.
The pump control card lacks a ground terminal for connection to active 4-20 mA transducers.
Use R1 of the RTD input as a ground terminal and all works well.
The R1 terminal is connected to the zero volt line in the pump control starter.