That's a little high, a bit worse that what I remember mine being.
According to the specs, you should expect about 0.1/0.6/4 uV for those
ranges.
So, your 10V seems a bit noisy.
Question, what was your warmup time? These really take about 24 hours to
fully stabilize.
Do you have the service guide? There are several internal adjustments
that affect the total noise, might just need tweaking.
But, don't try to recalibrate the actual reference voltage unless you
have a very good standard, of which a single Weston cell is not one of.
I'll give mine a check.
On 7/23/2014 12:00 PM, volt-nuts-requ...@febo.com wrote:
Hi Everyone,
I have a problem. I bought a Solartron 7071 on Ebay.
That Voltmeter seems working properly but I think it's too noisy.
It passes Self Test and Initialize and the reading is consistent against
a Weston Cell to the µV.
But, when left with a short circuit as input the noise (maximum during 5
min) is:
0.2µV for 0.1V scale
0.4µV for 1V scale
8µV for 10V scale
Is it acceptable?
Thanks for your help.
Bye,
Jean-Louis
--
Bill Ezell
----------
The day Microsoft makes something that doesn't suck
will be the day they make vacuum cleaners.
_______________________________________________
volt-nuts mailing list -- volt-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
and follow the instructions there.
