Hey all,
Using an RTD to measure temperature in a fluid flow line. When a VFD
gets turned on to start a fan (600V) the temperature reading drops by
~4°C. Using National Instruments Fieldpoint RTD module to read
temperature. It is my understanding that noise that causes an offset
like this has a DC component. Is this true? If so, Why (or how)would a
variable frequency drive cause DC level noise? Any ideas on how to
remedy this?