AnsweredAssumed Answered

VRF-Hp34970A Opening multiple channels

Question asked by VRFuser on Jul 8, 1999

i think the answer to your question is no, at the hardware level...
the 34970a has only a single DMM, therefore can only make one measurement.
if you require true simultaniety for these two measurements, try two 34970a
using external trigger signal.
(a 34970a and a 34401a would also work... )


Phil Van Heurck
Test Engineer
Trace Laboratories - Central
1150 West Euclid Avenue
Palatine, IL  60067
voice 847.934.5300
fax    847.934.4600

-----Original Message-----
From: rick hart <>
To: <>
Date: Thursday, July 08, 1999 7:58 PM
Subject: VRF-Hp34970A; Opening multiple channels

>Using an HP34970A with...
>1) 20 Chan MUX
>2) Multifunction Module
>I'm in need of help in the following area:
>measuring both DC voltage and current when Chan 1 is closed. I can get the
>voltage on chan 1 but when I try to go to Chan 21 for the current
>measurement it Opens Chan 1 back up and no Cigar. Is there a way to open
>multiple Channels when taking a single measurement?