Hope some one can help with this one, strictly not a DIY job, but I have been asked at work to measure a 8 Khz, 650 Volt RMS AC voltage to a accuracy of plus or minus 5 volts.
Tried several good quality digital meters but they don't appear to respond accurately to AC of that frequency.
Did intend to try a Scope with a special HV attenuation probe, but I don't think a difference of 5 volts will not show up as any measurable size difference on the trace.
Does any one know of a meter or type of meter that would do the job (not yet tried my old AVO
Any comments and help appreciated.
Tried several good quality digital meters but they don't appear to respond accurately to AC of that frequency.
Did intend to try a Scope with a special HV attenuation probe, but I don't think a difference of 5 volts will not show up as any measurable size difference on the trace.
Does any one know of a meter or type of meter that would do the job (not yet tried my old AVO
Any comments and help appreciated.