[volt-nuts] Fluke 732A Questions
J. L. Trantham
jltran at att.net
Tue Dec 31 20:02:15 EST 2013
Interesting thought. I love it when guys of that caliber compete.
From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com] On
Behalf Of John Phillips
Sent: Tuesday, December 31, 2013 5:51 PM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] Fluke 732A Questions
Call Agilent about 3458A calibration then tell them that you really want
your fluke calibrated and see what they will do for you.
On Tue, Dec 31, 2013 at 3:48 PM, John Phillips
<john.phillips0 at gmail.com>wrote:
> Any thing you do other than record the current voltage reading will
> introduce more uncertainty and increase drift unless you have a defect.
> Replacing a defective part will start the aging process over again for
> that part. Do not change anything if you can help it.
> Agilent is a good cal lab to use as well. They will run it for a few
> days and take readings a few different times and give you a report.
> Most of the time the battery is not enough to keep the box hot until
> they plug it in so they count on warming up a few days.
> Hope that helps.
> On Tue, Dec 31, 2013 at 3:31 PM, Chuck Harris <cfharris at erols.com> wrote:
>> The obvious reason for that suggestion is the adjustment pot is
>> likely to be noisy and is likely to introduce uncertainty.
>> The big question that comes to my mind is if you care about that
>> level of uncertainty, why not replace the pot with a voltage divider
>> made of some low thermal coefficient fixed value resistors?
>> -Chuck Harris
>> jeffhook at comcast.net wrote:
>>> Are you guys adjusting your 732As?
>>> I have a friend that works in a large CAL lab and he told me to
>>> never adjust my 732As, just compare them.
>>> They send out their 732 Bs to Fluke but are never adjusted, just
>>> compared and sent back with current voltage reading ??
>>> Thanks - Jeff
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> John Phillips
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