Hi,
I need to measure the current from a device which generates constant current 4 & 20mA at 24Vdc i.e device acts as constant current source. From the PXI-6238 manual I understand that Method 2 as shown in below figure is good for making measurements up to 20mA. Though manual says that this type of connection ensures that positive and negative side are within the common-mode input range.
I am worried about connecting the device directly to the PXI card might damage the PXI module. Is it safe to connect the device directly with out any signal conditioning and does it satisfy the maximum working range of device.
Can any one please help me on this or provide suggestions.
Thanks.