B&K 290 VOM calibrate procedure needed. 
Author Message
 B&K 290 VOM calibrate procedure needed.

My B&K 290 meter reads low on ac & dc volts.Can anyone share the calibration
procedure?
Resistance is close but a large rezero adj is needed when switching between
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.
John


Fri, 14 Sep 2007 14:16:22 GMT
 B&K 290 VOM calibrate procedure needed.


Quote:
> My B&K 290 meter reads low on ac & dc volts.Can anyone share the
calibration
> procedure?
> Resistance is close but a large rezero adj is needed when switching
between
> 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.
> John

Just a guess, but Bias = zero adjust, Bal = Neg/Pos equality.
--
N


Fri, 14 Sep 2007 15:22:26 GMT
 
 [ 2 post ] 

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