[volt-nuts] Power consumption of 3458A reference board / fitting one in a 3457A

Tom Knox actast at hotmail.com
Sat Sep 23 13:03:04 EDT 2017

If you want I will send you a few to play with for a few months.

Thomas Knox
Sr Test and Measurement Engineer
Ascent Concepts and Technology
4475 Whitney Place
Boulder Colorado 80305
actast at hotmail.com

From: volt-nuts <volt-nuts-bounces at febo.com> on behalf of Dr. David Kirkby (Kirkby Microwave Ltd) <drkirkby at kirkbymicrowave.co.uk>
Sent: Saturday, September 23, 2017 8:45 AM
To: Discussion of precise voltage measurement
Subject: [volt-nuts] Power consumption of 3458A reference board / fitting one in a 3457A

I've got two different, but not totally unrelated questions.

1) Does anyone know what is the power consumption of the 3458A reference
board? I was thinking of getting one, boxing it up with a battery, that
allowed it to keep running without mains power. I would like to know the
energy storage the batteries would need to keep it running for 2 days.

2) Would there be any point fitting a similar board, with an LTZ1000A in a
3457A 6.5 digit meter? Would it be practical? I wonder if the drift on the
3457A's reference is significant, and so a LTZ1000A would be a worthwhile
upgrade. Or is the main drift not the voltage reference, and so such an
"upgrade" would be a total waste of time/money?

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