Hello,
Iam asking if it is possible that connect ultrasonic sensor type SFDU91 (ENDRESS HAUSER) to transmeter type RMA42.
If it possible to what point in transmitter I should connect colored sensor cable?
Thanks

 

The FDU91 ultrasonic level sensor needs to connect to a device that
- generates an excitation signal,
- knows how to read the echo signal,
- can interpret the temperature signal AND
- can interpret the echo signal.
The RMA42 does none of that.

The manual for the SFDU91, page 4, says it connects to a Prosonic S transmitter.
https://portal.endress.com/dla/5001127/3443/000/01/TI01470FEN_0221.pdf