[Test-Equipment] Need recommendation for accurate low level DVM

[David DiGiacomo]

On Tue, Mar 20, 2012 at 4:31 PM, John Hensley <w5jv at hotmail.com> wrote:
>
> Subject sort of says it all: I've been using some inexpensive DVM's over the yearswhich have done all I needed to do.  Lately, however, I am working some areaswhere the low end ranges of those cheap meters aren't doing the job.  For example:resistance measures in the 0 to 100 ohm range; voltage readings in the 1 to 3 voltrange.

For low level voltage measurements, check out the Keithley 177 and 197
"microvolt DMMs".

For accurate low resistance measurements, you really need 4 wire ohms
(e.g. Fluke 8840A or even 8800A), or a specialized milliohmmeter (HP
4328A is common, but often missing its special probes).