I’m trying to connect an IR temperature sensor (PC151MT-0) to the PR33-10 as in the following picture, but when I follow that connection, I don’t get a good result (~0.07mA) [image] If I omit the external power supply I do get the results. What would be the correct way to connect multiple sensors…

[image] michael.m: PR33-10 Apologies my bad. i didnt realize that you are using PR33-10. this board provides the loop power supply and does NOT need external power supply. Yes, you can use multiple sensor and supply will be able to provide power to those.

4-20mA receiver PR33-10 interfacing with externally powered sensor

Hardware

Bhaskar December 21, 2021, 4:41pm 10

this wont work.
for external power you will need this one

here if how you can modify the board you have