[volt-nuts] 7071 noisy?

[Jean-Louis Noel]

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