Electric-Light
Senior Member
Some Fluke meters have a digital filter they call "Lo-Pass" which ignores high frequency component of VSD output that motors ignore. Without using it, it will read high frequency components and read a higher value.
http://support.fluke.com/find-sales/download/asset/2155848_a_w.pdf
In another article on Fluke, it said that techs prefer to use analog meter on VFD, because "they display voltage as the motor sees it", but when I checked the specs on Simpson 260, the AC bandwidth is something like 100KHz.
So... when you hookup a Simpson 260 to a VSD, would it read just like a common DMM because of its 100KHz bandwidth, or would it see the voltage as seen with Lo-Pass enabled Fluke?
http://support.fluke.com/find-sales/download/asset/2155848_a_w.pdf
In another article on Fluke, it said that techs prefer to use analog meter on VFD, because "they display voltage as the motor sees it", but when I checked the specs on Simpson 260, the AC bandwidth is something like 100KHz.
So... when you hookup a Simpson 260 to a VSD, would it read just like a common DMM because of its 100KHz bandwidth, or would it see the voltage as seen with Lo-Pass enabled Fluke?