Hi All,
FYI, Solartron 7081 is on Ebay.
Best regards,Oleksandr Kokorin
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of precise voltage measurement'
Subject: Re: [volt-nuts] Solartron 7081 serial comms
Addendum: Serial port will talk to a Solartron 7151 OK.
-Original Message-
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of David C.
Partridge
Sent: 07 July 2017 13:44
To: 'Discussion of precise
Addendum: Serial port will talk to a Solartron 7151 OK.
-Original Message-
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of David C.
Partridge
Sent: 07 July 2017 13:44
To: 'Discussion of precise voltage measurement'
Subject: [volt-nuts] Solartron 7081 serial comms
Well
Well that's odd. I just tried to talk to three different 7081s from two
different computers via the serial port using Putty and a null-modem cable.
Port set for 9600,8,n,1 7081 dip switches in the OFF position.
Result a deafening silence even after an "OUTPUT,RS232,ON" command typed
blind at
nput
on the rear of the meter.
Dave
-Original Message-
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of David C.
Partridge
Sent: 21 April 2016 20:53
To: 'Discussion of precise voltage measurement';
solartron_schlumberger_equipm...@groups.io
Subject: [volt-nuts] Solar
C2 certainly holds off the reset, not sure if it's just for pwdn, or also
startup. If you can check voltages around the reset logic,
might give you some more clues. Not much else I can think of that could be
causing this, although I suppose if you have enough ripple
on the +5v to the
What Poul-Henning is alluding to is an EPROM is a device where
data bits are stored in little buckets of charge. How full a
bucket is determines whether it is a "1" or a "0". How full the
bucket appears to be depends on the 5V supply going to the chip.
If the EPROM has leaked off much of the
In message <001501d19632$743ab230$5cb01690$@perdrix.co.uk>, "David C. Partridge
" writes:
>Does anyone have any thoughts as to likely faults that would cause this?
EPROMs loosing bits is a good candidate.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@freebsd.org
] On Behalf Of David C.
Partridge
Sent: Thursday, April 14, 2016 6:09 AM
To: 'Discussion of precise voltage measurement'
Subject: Re: [volt-nuts] Solartron 7081 randomly re-initialises
That makes sense though +5V looked OK, I'll look a bit harder!
-Original Message-
From: volt-nuts [mailto:volt
That makes sense though +5V looked OK, I'll look a bit harder!
-Original Message-
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of acb...@gmx.de
Sent: 14 April 2016 11:26
To: volt-nuts@febo.com
Subject: Re: [volt-nuts] Solartron 7081 randomly re-initialises
guestimate
One of my 7081s will occasionally re-start from running in TRACK mode,
ending up with the INITIALIZED message on the display.
Does anyone have any thoughts as to likely faults that would cause this?
Dave
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Hi Pete,
a few years ago, the UK was flooded with ex-MOD 7150+ meters. They had been
stored in damp conditions and moisture was absorbed into one of the WIMA caps
inside the Schaffner filter.
The caps were only rated 250V and where I was living (half way between two
nukes) the line voltage
Pete,
Congrats! The 7081 is a good meter, although very slow when making 8.5 digit
measurements. The key is only necessary for calibrating the instrument and can
be bypassed with a clip lead to go into cal mode. I have the part number for
the matching input connector somewhere but I'm
s you refer to. I have
> the
> > specifics about the proper connectors if you need them. They are in the
> > 'archives' I think.
> >
> > Good meters but slow compared to the 3458A.
> >
> > Hope this helps.
> >
> > Joe
> >
> > -Original Message-
: [volt-nuts] Solartron 7081 With Bad WR057 Diode
My Solartron 7081 has a bad WR057 diode that needs to be replaced. It's a
three terminal device that looks like two silicon diodes in parallel.
It was making the meter read about 10.1V with a 10V input. Luckily it was
temperature sensitive
...
Regards,
David Partridge
-Original Message-
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of Charles
Black
Sent: 31 October 2014 00:09
To: volt-nuts@febo.com
Subject: [volt-nuts] Solartron 7081 With Bad WR057 Diode
My Solartron 7081 has a bad WR057 diode that needs
LittleDiode, they are the eBay shop
for LittleDiode Components ...
Regards,
David Partridge
-Original Message-
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of Charles
Black
Sent: 31 October 2014 00:09
To: volt-nuts@febo.com
Subject: [volt-nuts] Solartron 7081 With Bad
As a matter of interest which particular diode is causing these symptoms?
On 31 October 2014 15:18, Todd Micallef tmical...@gmail.com wrote:
Charlie,
Calogic appears to sell directly, they may even send you a sample. I guess
it wouldn't hurt to ask.
Todd
It's D110 on PCB6. After removing D110 the 7081 read about +2.5
microvolt with the input shorted with an external jumper. When I
shorted the HI amp input with the MYTCHETT test point the 7081 read
about -1.0 microvolt with low noise. I expect that the D101 (DPAD1) is
the culprit.
My Solartron 7081 has a bad WR057 diode that needs to be replaced. It's
a three terminal device that looks like two silicon diodes in parallel.
It was making the meter read about 10.1V with a 10V input. Luckily it
was temperature sensitive and was easy to find with freeze mist. Removal
caused
into all the 'meets performance and
specifications' tests perhaps?
Joe
-Original Message-
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of J May
Sent: Friday, September 26, 2014 8:30 AM
To: volt-nuts@febo.com
Subject: [volt-nuts] Solartron 7081 Calibration
I
not be available.
Regards,
David Partridge
-Original Message-
From: volt-nuts [mailto:volt-nuts-boun...@febo.com] On Behalf Of Todd Micallef
Sent: 28 September 2014 18:35
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] Solartron 7081 Calibration
I wonder if Ametek can
On 26/09/2014 15:24, M K wrote:
On 26/09/2014 14:29, J May wrote:
I need to have a Solartron 7081 calibrated - can anyone recommend
someplace in the UK (or the EU)?
Unfortunately Ametek no longer provide a calibration service for the
meter.
You could try testitnow.co.uk they are Transmille
Reading through the archives it appears that the calibration switch keys
are not unique.
Can someone with a key tell me if the key blanks are a common size, and
if they are would someone (preferably UK based) be prepared to send me a
key so that I could get a copy made?
I need to have a Solartron 7081 calibrated - can anyone recommend
someplace in the UK (or the EU)?
Unfortunately Ametek no longer provide a calibration service for the meter.
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On 26/09/2014 14:29, J May wrote:
I need to have a Solartron 7081 calibrated - can anyone recommend
someplace in the UK (or the EU)?
Unfortunately Ametek no longer provide a calibration service for the
meter.
You could try testitnow.co.uk they are Transmille agents and have their
own 8.5
.
Joe
-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of m k
Sent: Saturday, January 12, 2013 2:40 PM
To: volt-nuts@febo.com
Subject: [volt-nuts] solartron 7081 rom reading q
Hi,
Finally able to talk to the meter through RS232
Hi,
Finally able to talk to the meter through RS232.
Is there any way to dump the rom contents using the RS232? or do the chips have
to be put in a reader to get the values out?
MK
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