What is a Loop Powered Device?

[@InstrumentCalibration]

Can you share some of the examples that are not loop-powered devices? Thank You .

[@erhirendrasinhzala5293]

Current transformer CT output...is mv!?

[@shubhajitmondal7325]

I have an Infrared Temperature Pyrometer senser from Micro epsilon. I have also bought an CN8DPt Platinum series from Omega engineering. Can this model able to read this 4-20 mA process current into Temperature??

[@DwyerOmega]

That's a great question! Yes the platinum series can be used with a mA signal. If the device is a 2 wire loop powered device the platinum controller is compatible. If the device has separate excitation requirements (4-wire connection) then a separate power supply is needed.

[@HanZhang-rz7vg]

Can they using batteries as power supply?