Get Current with NI 9227

[Emna20]

hi ,

i want to know how i could  mesure the current  of a machine using NI 9227 ,(without messing up with the machine ) .

see the picture below  .

[marcelmorin]

What is the machine in question? 

What do you mean by 'measure the current of a machine' ?

Are you trying to measure the current being sourced to the machine? The current produced by the machine?

The Operation and Specification sheet for the 9227 is a good place to get started if you have questions on how to connect the module in question to get a current reading.

How to Measure Current & Current Measurements: How-To Guide are also good resources for you.

[Henrik_Volkers]

Read the fanatastic manual of the machine, buy an appropriate current transformer (inrush current migth be 10 times the value) , find someone who known how to correctly (and savely) wire it . Together with the cal-sheet (or at least the datasheet) of the current transformer, configure the data aquisition to read the current.

Hint: you will need to read the supply voltage in sync to the current to measure the energy consumption.