RE: A/R II voltage running up

You guys don't need my input on this, but I also advocate the Fluke
solution. I also have one of the older-style analog RS clamshell meters,
but I keep that in the RV for emergencies and use the Flukes for day-to-day
lab and shop work. I found that the zeroing dial got a little flakey after
extended periods of non-use, so I pulled out the batteries and now only use
the RS meter for VDC and VAC measurements (caution - it's not a true-RMS
measurement).

Alex

----
ayeckley@elektronforge.com
www.elektronforge.com
-----Original Message-----
From: owner-vectorlist@vectorlist.org
[mailto:owner-vectorlist@vectorlist.org] On Behalf Of Christopher X.
Candreva
Sent: Monday, March 23, 2009 9:17 AM
To: vectorlist@vectorlist.org
Subject: Re: VECTOR: A/R II voltage running up
On Mon, 23 Mar 2009, Kirk Spradling wrote:
> How do you calibrate a DMM?  Oh well, at least I learned something...  
> New
Back around 1988 I built a Heathkit DMM (that I believe was a kit version of
a Fluke, at least that was widely believed at the time). The calibration
method involved a 9V battery, a zener diode, and a calibration pot on the
DMM.
Really what you need is a known precise voltage source. The zener and
battery gives a known voltage, which you set the DMM to.
This is still my main DMM today.
==========================================================
Chris Candreva  -- chris@westnet.com -- (914) 948-3162 WestNet Internet
Services of Westchester http://www.westnet.com/
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