At 12:47 AM 4/29/2005 -0500, you wrote:
>So I finally fixed the Fluke 8600A DMM I got on ebay.  It appears to
>use its bank of four D-size NiCads instead of an input filter
>capacitor... when the cells go bad, the meter stops working, becase
>the 5V DC line is more like 2V DC +3V AC.
>
>Even though the DMM is as old as I am, Fluke has the serivce manual as
>a free download from their website.  First class!
>
>Anyway, I'm trying to get this thing into calibration as best I can.
>My only other meter is a 3.5 digit Radio Shack meter that's at least a
>decade old, so it's not much good as a calibration reference.
>
>0 V is pretty easy to obtain.   Any creative ideas on how to get other
>reference voltages to calibrate this meter?

Borrow another meter.

Alternatively, you can buy a 0.1% LM4041AIZ-1.2
from Digikey for 2.39 one-off (TO-92, 1.2V). Or a 10V 0.05% 5ppm/=B0C
LT1019CN8-10 for $6.88. You can also buy 0.1% resistors for a dollar
or so, which could allow you to check the resistance and low current
ranges, and make a divider for low voltage ranges.


Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the rew=
ard"
speff@interlog.com             Info for manufacturers: http://www.trexon.=
com
Embedded software/hardware/analog  Info for designers:  http://www.speff.=
com





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