Thanks JLSeagull, that's correct I'm only looking for a suitable barrier for the 4-20mA signal. The flow meter,(alrady purchased) is a siemens FUS060 with the values stated above.
Can anyone assist in sourcing an IS Barrier for Ultrasonic Transmitter for a 4-20mA loop powered signal?
I've contacted MTL already who state that a suitable barrier cannot be found based on the figures quoted in the instrument operation manual as follows:
Ui = 23V
Ii = 40mA
Pi = 70mW
Typical...