I think the only option for repair, out of warranty or out of repair agreement,
is 'Per Incident' which the KS website lists as $2851.00. This is a 'one
charge fits all' kind of repair price. It comes with a calibration as well.
It's what makes the repair agreement attractive as 'insurance'
Forgot to add. All were purchased on theBay.
Joe
-Original Message-
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of J. L. Trantham
Sent: Monday, January 15, 2018 9:12 PM
To: 'Discussion of precise voltage measurement'
Subject: Re: [volt-nuts] What's the probability
David,
I have had a similar issue with mine but only on days when my stand-by
generator turns on, takes the load for the house, then switches the load back
to the street and shuts down. There is clearly a brief 'power hit' when this
occurs. I've never tried to chase this down because it is
Frank,
Thanks for the picture of your board.
I have been interested in the 'plastic cap' on the LTZ1000A and you provided me
with information about this in the past.
Do you have a picture of the bottom of the board? I would love to see how the
bottom half of the 'cap' looks.
Thanks.
Joe
and what would it cost?
On Thu, Mar 26, 2015 at 8:03 PM, J. L. Trantham jlt...@att.net wrote:
A couple of years ago, I sat my 735C, a (at that time) recently
Agilent calibrated 3458A, and two 731B's on a bench and have left the
references on, with battery back-up for any power failure. I have
A couple of years ago, I sat my 735C, a (at that time) recently Agilent
calibrated 3458A, and two 731B's on a bench and have left the references on,
with battery back-up for any power failure. I have turned the 3458A off and on
a number of times in the interim.
When I set all this up, I
Frank,
Thanks for the info. I've wondered about that.
In the days of 3D printers and CAD/CAM, it might be possible to have a 'run' of
these 'made to order', so to speak.
I wonder if Linear Technology would have any information about them?
Thanks again.
Joe
-Original Message-
From:
When these boards are installed in a 3458A, the LTZ1000 is covered by a small,
white, 'hat' that mounts with screws that pass through the two holes on
opposite sides of the LTZ1000. I've never removed the board to see if there is
anything on the bottom of the board that would cover the bottom
Mark,
I am very interested in this.
I downloaded the file, saved it, double clicked the .EXE and got 'The program
can't start because gpibib.dll is missing from your computer'. What do I need
to do with the .CPP file? Do I need to install John Miles GPIBKIT library?
I already have MS
The .ZIP or the two individual files, .CPP and .EXE?
Thanks.
Joe
-Original Message-
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of Mark Sims
Sent: Wednesday, December 24, 2014 6:41 PM
To: volt-nuts@febo.com
Subject: [volt-nuts] HP3458A cal ram data dumper
Yes, the
I suspect it has the six EPROM version of the A5 board, where the '5' firmware
resides. The Ver 8 files are 'out there' and it should be a simple matter of
burning the six chips if you have a chip burner.
I don't know where the '1' firmware resides.
Joe
-Original Message-
From:
for repair.
Todd
Sent from my iPad
On Aug 23, 2014, at 6:42, J. L. Trantham jlt...@att.net wrote:
Randy,
The 'IN CAL' LED is turned on as Todd describes. It goes off if power
to the unit is lost and, thus, calibration is lost. It is not related
to the battery charge LED.
As I understand
Mark,
Would love to try it.
I think the main reason to hang onto the calibration data is to be able to
send the meter to Keysight and find out if the meter was 'in spec' when it
arrived for calibration. If so, gives great confidence that the meter is a
'good one'.
Joe
-Original
Bill,
Thanks for the insight.
I always thought that I lost my CALRAM data by trying to read the chip in my
programmer while the chip was still warm. What you are saying is that you
did not try to read your chip, just unsoldered, installed a socket, plugged
it back in and the data was
John,
I don't think I would worry too much about messing up the 'CALRAM'. If you
'mess up' the 'CALRAM', and your meter is, otherwise, OK, you will spend
about $500 with Keysight for a 'Keysight' calibration, which I would
recommend.
If they get your meter and it is not 'suitable' for
Randy,
Congratulations on your 'new' 3458A.
The 'CALRAM' back-up was just recently covered. There are two options:
1. Remove the NVRAM, read its contents with a programmer, program a new
NVRAM and install the new NVRAM. I chose that option, installing sockets
for the 'CALRAM' and the two
Poul,
I would love to know where the CALNUM value is stored.
Any idea?
Thanks.
Joe
-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Poul-Henning Kamp
Sent: Thursday, August 07, 2014 12:36 AM
To: Discussion of precise voltage
that if I get a cheap 3458A that is complete but
doesn't work, Agilent will repair it and calibrate it for a fixed fee of
$2740.46, regardless of what is wrong with it?
Of course that means i would need to insure the unit is complete with no
missing parts.
Randy
On Sun, Jul 6, 2014 at 3:15 PM, J. L
-nuts] AC Voltage Measurement Standards
I like the 5200A for a good stable unit up to 110 volts but if you go above
that you would be better off with a 5100B which will do 1100 volts.
On Tue, Jul 8, 2014 at 6:46 PM, J. L. Trantham jlt...@att.net wrote:
I've been thinking about adding an AC Voltage
It is worth mentioning (re-mentioning) that once your 3458A passes calibration
with HP/Agilent/Keysight, etc., it becomes eligible for their 'repair
agreement' at $178.68 per year (with a small discount if you purchase multiple
years, up to a maximum of five years). This means that if it
Roy,
The 3458A is quite the instrument. I'm not familiar with the latest
'plug-in/power-up' devices of which you speak. I suspect you have Rev 9.2.
Mine have the single chip EPROM, through-hole, A5 board. I suspect yours
has the SMT version.
If you have just had Agilent calibrate the meter,
available
from Fluke ?
Regards
Roy Phillips.
-Original Message- From: J. L. Trantham
Sent: Saturday, March 08, 2014 10:09 PM
To: 'Discussion of precise voltage measurement'
Subject: Re: [volt-nuts] A Fluke 732A: Return it or keep it?
Charles,
What size batteries did you use for your
Willy,
I would encourage you to call Gary Bierman at Agilent/Keysight, Loveland,
CO, and ask him your questions.
He is very easy to talk to and open to any question or thought about how to
proceed. IMO, he takes a personal interest in these instruments and wants
to make them the best that
Charles,
Thanks for the info on batteries. I agree, some are definitely better than
others. However, I'm no 'connoisseur' of batteries yet. The 732A I got was
'unknown working condition' and I wanted the cheapest batteries I could find
to test the unit and see if I could get it up and running.
Charles,
What size batteries did you use for your external pack and where are you
located? In other words, how long can your external battery pack 'survive'
keeping the 732A 'hot'? Is the external pack recharged at Fluke or does it
have to make a round trip on the initial charge? Once I am
Michael,
I would recommend you download the manual if you have not already done so.
(Sorry, just noticed you had looked at the manual.)
I don't think you are going to have enough resolution with the 3457A to
characterize the 732A, other than a rough idea of stability. You will need
a 3458A, a
Michael,
Definitely need to keep it on, ship it hot, and have an external battery
pack attached. IIRC, the internal batteries are good only for about 4
hours. I have not tested that though. I think I read this in the manual or
one of the list members mentioned it. That's why the connector is
Oh!! THAT's what they mean by 'male' and 'female'. I get it! :^))
My 732A has male pins on the battery module and female sockets on the mating
connector/plug.
BTW, the mating connector is not easy to find. Several phone calls to Fluke
led me to Fluke Item Number 2181497, Description:
I just spoke with Fluke about calibration options for the 732A and how to
connect an external battery pack.
There are three calibration options:
1.Z540 $700
2. Accredited $1000
3. Primary Standards Lab
through the Pomona catalog.
When you find out from Fluke what services they offer and prices please
let all of us know.
Bill
- Original Message -
From: J. L. Trantham jlt...@att.net
To: 'Discussion of precise voltage measurement' volt-nuts@febo.com
Sent: Tuesday, December 31, 2013 5:13 PM
Charles,
I would like to find the mating plug for J10 for several reasons, being able
to get it to calibration being just one of them. However, I was hoping it
would be good enough to make it to calibration on the internal batteries.
I seem to recall reading that the internal batteries were
the thermistor value and its recorded value - I asked Fluke this
question and the answer was, they did supply the individual 732A's value in
written form to the original purchaser, but unfortunately they did not
maintain a separate record.
Roy
-Original Message-
From: J. L. Trantham
Sent
Jeff,
Too late.
I have already moved the jumpers and adjusted all of the front panel
adjustments to achieve the desired output voltages.
Since I don't have any 'historical' data about the performance of my specific
unit, I will 'start from scratch' on the unit I now have. Whether to send it
Interesting thought. I love it when guys of that caliber compete.
Joe
-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of John Phillips
Sent: Tuesday, December 31, 2013 5:51 PM
To: Discussion of precise voltage measurement
Subject: Re:
.
Happy New Year
Bill
- Original Message -
From: J. L. Trantham jlt...@att.net
To: 'Discussion of precise voltage measurement' volt-nuts@febo.com
Sent: Monday, December 30, 2013 6:28 PM
Subject: Re: [volt-nuts] Fluke 732A Questions
Bill,
Sounds like you are further along
I called them this AM and they only had a 'copy' of the manual and not an
original.
If I understand what you are saying, you got a copy as well.
If so, were the 'change sheets' part of the 'copy'? When I asked about
that, I was told that there were no 'change sheets' in the copy she was
looking
Charles,
I just assumed that it was obsolete. I'll contact Fluke.
Thanks.
Joe
-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Charles Steinmetz
Sent: Monday, December 30, 2013 5:52 PM
To: Discussion of precise voltage measurement
for the 1 volt
output, and 10.0 volts for the 10 volt output (how I miss that final
digit).
Looking forward to your further results and any other owners comments.
Best regards
Roy
-Original Message-
From: J. L. Trantham
Sent: Saturday, December 28, 2013 10:51 PM
To: volt-nuts@febo.com
Todd,
Very good information.
Sounds like we are getting close to the correct P/N for the mating plug for
the socket.
My 732A has only a single transistor mounted to the frame from the A4
Regulator Assembly, in the position of Q4, and the resistance is 4230 ohms
after the unit is 'warmed up' and
I have reviewed the prior postings on Volt-nuts (a very rewarding review,
BTW)) regarding the 732A and have two questions:
1.Has anyone determined the part number, or a source, for the mating
plug to J10, the external power connector for the 732A-7005 battery pack? I
noted some
Thanks to everyone for their thoughts about the 735C 10.0 VDC standard.
I cleaned up the 'corrosion', rebuilt the NiCd battery packs, and plugged it
in. It measured about 10.00010 VDC after being on for 24 hours or so.
I reviewed the manual for the 732A and found quite a similarity,
Worked fine with Win7Pro and Adobe Reader X.
Joe
-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Didier Juges
Sent: Saturday, September 21, 2013 5:13 PM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] VS330
I do
, 2013 at 6:50 PM, J. L. Trantham jlt...@att.net wrote:
John,
Can you give us more information? Serial number, Rev. number, CALNUM?
How much to invest will be determined by age and other condition.
It doesn't sound like a simple CALRAM issue but changing the CALRAM is
relatively easy. I
did.
On Wed, Sep 18, 2013 at 9:17 AM, J. L. Trantham jlt...@att.net wrote:
I agree with your assessment of an 'old' meter being more desirable.
I would recommend a conversation with Gary Bierman if you have not already
done that.
Joe
-Original Message-
From: volt-nuts-boun
did.
On Wed, Sep 18, 2013 at 9:17 AM, J. L. Trantham jlt...@att.net wrote:
I agree with your assessment of an 'old' meter being more desirable.
I would recommend a conversation with Gary Bierman if you have not already
done that.
Joe
-Original Message-
From: volt-nuts-boun
John,
Can you give us more information? Serial number, Rev. number, CALNUM? How
much to invest will be determined by age and other condition.
It doesn't sound like a simple CALRAM issue but changing the CALRAM is
relatively easy. I removed all three DALLAS chips in mine and installed
sockets.
recall the exact order, but there is a big connection between GE,
Gould, and GATES batteries.
... both Nicads and SLA's.
-Chuck Harris
J. L. Trantham wrote:
Chuck,
Do you mean 'commercialize the cylindrical sealed LEAD cells'? The
cylindrical cells in the 6 V battery that powers the HP 5315A
- Information Needed
735C = prototype version of the 732A. 10V output only, no 1V divider.
As far as I know it was used for DC transfer experiments from the Fluke
primary lab to their other calibration sites.
2013/9/7, J. L. Trantham jlt...@att.net:
Does anyone have any information about the Fluke 735C
Does anyone have any information about the Fluke 735C 10.0 DC Voltage
Standard?
Thanks.
Joe
___
volt-nuts mailing list -- volt-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
and follow the
Joe,
Do you have any data about prior measurements of these cells or their
history?
I read somewhere there is a predicted decline rate based on time and
temperature IIRC.
Once you get the meter calibrated, you can 'track' their measurements.
Might also be time for a 'differential voltmeter' to
...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Dr. David Kirkby
Sent: Tuesday, August 20, 2013 12:39 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] HP 3457A calibration?
On 20 August 2013 02:59, J. L. Trantham jlt...@att.net wrote:
Interesting video.
A bit
to change that out before sending
it for calibration. I know that I have to keep the SRAM powered, so I don't
loose the data already there.
Joe Gray
W5JG
On Mon, Aug 19, 2013 at 7:59 PM, J. L. Trantham jlt...@att.net wrote:
Interesting video.
His 'cal certificate' shows no data other than
Joe,
Sorry to be so late answering this post but I'm 'tied up' right now and
can't get to all my data.
However, I have sent DMM's to Agilent (3458A), Fluke (289 and 8846A), and
Ametek - Solartron (7081).
Agilent was for their 'Agilent Cal' and it included 'As Found' and 'As Left'
data with
Joe,
I looked at the listing you posted. The unit looks very nice. However, the
units are selling in the $150 - $250 range, although I note some of the
units you linked to have sold for the price asked.
There has been considerable discussion on the list about the 3457A and some
differences
measurement
Subject: Re: [volt-nuts] EDC VS330 Voltage Standard
Just a follow up. You were lucky getting a manual. I just got a reply from
Krohn-Hite, saying that no manual was avaialble.
Joe Gray
W5JG
On Sun, Jul 28, 2013 at 4:11 PM, J. L. Trantham jlt...@att.net wrote:
Do you have a manual? I
, but the 1030A
partial manual looks like it would be very similar. Would you please
send me the email contact at K-H that sent you the manual?
Joe Gray
W5JG
On Sun, Jul 28, 2013 at 4:11 PM, J. L. Trantham jlt...@att.net wrote:
Joe,
Pardon my adding a 'subject' to the thread.
If all
I probably have it. Can you give me the specifics of what you are looking
for?
Joe
-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Sam Reaves
Sent: Friday, May 10, 2013 7:46 PM
To: volt-nuts@febo.com
Subject: [volt-nuts] Solartron
Dave,
My knowledge of 'FOD' comes from the Navy, in particular, aircraft carriers.
It is an acronym standing for 'Foreign Object Damage' or 'Foreign Object
Debris'.
On an aircraft carrier, there are periodic 'FOD patrols' whereby the crew
walk the flight deck, shoulder to shoulder, stern to bow
.
Joe
-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of J. L. Trantham
Sent: Wednesday, January 30, 2013 1:50 PM
To: 'Discussion of precise voltage measurement'
Subject: Re: [volt-nuts] Solartron 7071 beeping about twice a second
I wonder
Is it possible that it is, somehow, 'picking up interference' from your
'house standard'? How close to 10.000 000 000 MHz is it?
100 mV P-P is fairly substantial. Otherwise, is it oscillating?
Good luck.
Joe
-Original Message-
From: volt-nuts-boun...@febo.com
MK,
I am not aware of a way to read the EPROM's without removing them. Dave
Partridge has done a lot of work on these along with Mickle, both on the
list.
Dave Partridge's EPROM images are on Didier's site. I have read the EPROM's
from two of these units, of two different vintages IIRC, and
I am not familiar with the HP 740B. It looks like it needs a special
connector for the front panel to get an output or input. If true, I would
score that as a negative.
I have a 335A that had some problems when I got it. Turned out it was just
some dead electrolytic caps that were identifiable
I just added a 'new' (manufacture date late 1998) 3458A to the collection
that had Option 001 and 002 noted on the rear panel. When it arrived, all
seemed well, passed self test, seemed accurate but with OPT? and ENTER, it
returned OPT 1,0 which implies OPT 001 is installed. However, I thought
Anyone heard from Bob Smither lately? I emailed him direct but have had no
response.
Thanks.
Joe
___
volt-nuts mailing list -- volt-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
and follow the
Can't recall if I posted this here or not but the Cal Key for my 7081 also
fits the 7061.
Joe
-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Fabio Eboli
Sent: Wednesday, August 22, 2012 2:58 AM
To: Discussion of precise voltage
Fred,
700 euro seems a bit high, at least by US standards, for a 3457A. It is a
good meter and I have one. Though no longer supported, Agilent will still
calibrate one for $200.22, according to their website.
You might want to consider a Fluke 8846A. I have seen them sell for $900
new. I
I am considering adding some 'standards' to my shop. I am interested in the
ability to calibrate DMM's, using my Agilent Calibrated 3458A as a 'transfer
standard'.
I have a Fluke 731B 10 VDC standard, a Fluke 335A DC Voltage Standard that
goes to 1000 VDC, and some selected standard resistors
that the standard deviation calculation is
wrong:
http://www.febo.com/pipermail/volt-nuts/2012-April/001793.html
If you have time to test yours for this I would be grateful.
Another thing is that on mine SP1 and SP2 on floating board are both
open circuit.
Fabio.
J. L. Trantham jlt...@att.net ha scritto:
Fabio
...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Dave M
Sent: Sunday, June 24, 2012 8:08 AM
To: volt-nuts@febo.com
Subject: Re: [volt-nuts] Solartron 7061 Service Manual - Does anyone
haveone?
Date: Sat, 23 Jun 2012 11:12:59 -0500
From: J. L. Trantham jlt...@att.net
I am looking
My 7061 has a single battery installed, B501, a 3.6 V Ni-MH Rechargeable 3
pin battery. My 7081 has two batteries installed, the same 3.6 V Ni-MH
Rechargeable battery and a ½ AA Lithium Battery that serves as the onboard
clock backup battery. It is connected with its negative pin to a 47K
The Cal Key I received for my 7081 also works for the 7061.
If anyone needs one, let me know.
Joe
___
volt-nuts mailing list -- volt-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
and follow the
...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Jean-Louis Noel
Sent: Friday, June 22, 2012 3:58 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] Calibration Sources for Solartron 7081
Hi J. L.
From: J. L. Trantham jlt...@att.net
What source could/should I
I recently added another Solartron 7081 to my collection that seems to be
working correctly, is stable and I have upgraded it to the latest firmware.
However, it is clearly not accurate, at least on the 10 VDC scale, measuring
my 10.000 000 standard at about 10.000 840 V while my other meters are
73 matches
Mail list logo
