Scott59 Posted March 16, 2016 Report Share Posted March 16, 2016 Hello All I am trying to get a Weed Instrument 611 RTD to give me a Temperature reading of a Caustic Solution, The Manufactures Information says "Quote" ( Current: A Continues current of 20 mA (RMS) and a short term pulsed current of 40 mA (RMS) shall not Damage the sensor. Standard Operating current 1 to 4 mA ) So with this information I concluded the the Jumpers need to be set on Current and the Output needs to be a mA setup..I have tried 0-20 and 4-20 with no results. I have 24V going to OV and V2 on the 24VDC Analog I/O connection and wired the RTD per the PT100 layout in the instructions with no results. The RTD wires ( 3 of them ) are Yellow,Black,Black, when i put my multi-meter that is set on ohms across the yellow and one of the black wires, i get a ohms value that converts to room temperature, I get the same value when I touch the other black wire, so I concluded that the yellow wire could possibly be the positive and put it on the + connection on I/O 0 and one of the Black wires on the negative connection with the second Black wire connected to the common. No results Now after watching the Unitronics Video's on U-Tube they say that Linearization of the signal should not be needed, I have tried this as well and almost every combination of setup's there is...including some that i knew wouldn't work...At this point I am totally frustrated with trying to figure this out. I have been working on this particular part of the program for over two days with no results. None of the Project Examples provided show how to build a setup for an RTD...they show everything else, but no RTD. Can anyone out there in the Forum walk me thru this? P.S. Sorry for the long drawn-out explanation. Quote Link to comment Share on other sites More sharing options...
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