B&K 290 VOM calibrate procedure needed.
> My B&K 290 meter reads low on ac & dc volts.Can anyone share the
> Resistance is close but a large rezero adj is needed when switching
> low & high power resistance
> It has the following pots
> + and - DC Cal
> AC cal
> Bias adj and Bal Adj (I have no idea about these)
> One unlabled pot mounted on the range switch.
Just a guess, but Bias = zero adjust, Bal = Neg/Pos equality.