NI9217 + CompactRio to measure Two-Wire RTD Resistance thermometer

[iamnewhere]

I have 4 two-wire PT1000 RTDs. How can I use NI9217 with cRio 9024 to measure the temperature?

I followed the link below, but I don't know where to set the module to 3 wire mode. Right now I am getting +-1200 C, which must be wrong. And now only RTD0-3 are available, but I need to use all 12 terminals to measure 4 RTD. I would appreciate any idea and help. Thank you in advance. I attached two screen shots, which show the property page of NI9217 and only 4 terminals are available to use in each NI9217.

http://digital.ni.com/public.nsf/allkb/09E99F60C481D613862572C300637341

[JÞB · Accepted solution]

Well, the device has a range of 0-400 Ohms (it expects a 100ohm RTD)  so tossing a PT1000 in the system will certainly give it a max value temperature output all day long.

[iamnewhere]

Dear Jeff,

thank you for your answer. I did not read the manual carefully and missed the measuring range of the device. So it is impossible to use NI9217 to meausre PT1000 in another way? Or I have to use another module to properly meausre the Temperature from PT1000?

I tried to use NI9217 as a constant current souce (1mA) and then meausre the voltage accrose the PT1000 using 9205. This however gave me lower temperature than expected. I suspected some current leaked through the 9205 Module and only part of the current flowed through the PT1000.