I'll say- I have one of the first HP nixie DC voltmeters (I forget the number); in auto mode it constantly cycles. I only keep it because it works flawlessly and it was the first piece of HP gear I acquired.
-Dave
On some meters pretty annoying, like my keithley 199 in autorange, click, click, click so I'm glad it does not start in autorange.
Fred
--- In hp_agilent_equipment@... , Bob Albert <bob91343@...> wrote:
I have too many meters. Well, too many I don't use, like the Ballantine 300, the HP410B, and the Heath AV-3. But I would love a 3456A or similar.
Oh and I have a 5-digit job from about 1962, Electro Instruments .01% with Nixie readout. And a Calibration Standards slideback DC voltmeter.
Bob
--- On Thu, 12/20/12, Jeff Machesky <jeff@...> wrote:
From: Jeff Machesky <jeff@...>
Subject: Re: [hp_agilent_equipment] 3456A Voltmeter
To: hp_agilent_equipment@...
Date: Thursday, December 20, 2012, 8:54 PM
So what's a fair price for the 3456A
without a known state of
calibration? I'm still looking at the 3478A's as well or
maybe even the
3468A. Something really intriguing about the 3456A however.
I did order
one of the fluke 8050A's just because. Found one that was
powered on and
appeared very clean. Doubt I'll have it before x-mas
however. Can one
really have too many meters ?
Thanks,
Jeff
On 12/20/2012 9:42 PM, David C. Partridge wrote:
Normal behaviour. They have VERY high input impedance
on the low
voltage ranges, so any stray charge can cause a
reading.
Dave
-----Original Message-----
From: hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>
[mailto: hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>]
On Behalf Of Michael Hong
Sent: 20 December 2012 23:23
To: hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>
Subject: [hp_agilent_equipment] 3456A Voltmeter
Hi everyone,
I just bought two 3456As from the same dealer off
eBay.
Both of them have the same problem. When they are
turned on, the
number drift from low mV number and goes up to -8.nnnnn
for one meter
and the other meter to -6.nnnn. And then float around
there. When I
short the leads at Ohm or Volt setting, they show the
near zero and
when disconnected, go to their the number again.
I expect they stay at very low mV or zero without any
input. What
seems be the problem?
Thank you.
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