9207 current measurement inaccuracy / offset

[Usman777]

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

[Henrik_Volkers]

Have you measured in High speed mode or high resolution mode?

[Usman777]

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.