National Instruments Network Device DAQ S - Manual (Page 151)

Appendix A Device-Specific Information
© National Instruments Corporation A-13 NI 6124/6154 User Manual
• Improved accuracy—Isolation improves measurement accuracy by
physically preventing ground loops. Ground loops, a common source
of error and noise, are the result of a measurement system having
multiple grounds at different potentials.
• Improved safety—Isolation creates an insulation barrier so you can
make floating measurements while protecting against large transient
voltage spikes.
NI 6154 Specifications
Refer to the NI 6154 Specifications for more detailed information about the
device.