9 mV noise on AC voltmeter
- From: Andre Majorel <cheney@xxxxxxxxxxxxxxx>
- Date: Wed, 1 Oct 2008 10:05:27 +0000 (UTC)
I've got a Chauvin Arnoux C.A 5220 DMM that bottoms out at 9 mV.
Even with the inputs shorted and in "Velec" mode (270 k input
impedance), it never goes below 9 mV.
The problem is only for AC. In DC mode, it *does* go down to 0.
Any idea what could be the problem ?
It's built around a JRC NJU9210BFC.
--
André Majorel <URL:http://www.teaser.fr/~amajorel/>
"Je regrette le Concorde. Au moins il vous amenait directement à
l'hôtel." -- Cyrano
.
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