10-29-2014 11:19 PM
Hello
I am using cRIO-9074 with NI9207 for current measurement from pressure transducer 4~20 mA signal. I have observed that the readings mentioned by equipment are slightly offset when compared to a standard digital multi meter for measuring current.
The pressure transducer was supposed to read 0bar and signal = 4mA, When measured with digital multimeter the reading is 4mA and when i use 9207 module to read the same channel i get 0.0037 which is equal to 3.7mA.
Is this the problem with calliberation of i am doing something wrong. All equipment was purchased brand new some months back.
Connection diagram is attached below.
Please help
Best Regards
Muhammad Usman
10-30-2014 04:30 AM
Have you measured in High speed mode or high resolution mode?
10-30-2014 07:50 PM
I have checked in both both resolution and high speed mode. Currently it is in high resolution mode. I am also considering to check the caliberation of the external digital mulimeter.