Author Topic: Windows GPIB App (multi-purpose)  (Read 54809 times)

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Offline Labrat101

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Re: Windows GPIB App (multi-purpose)
« Reply #375 on: May 18, 2021, 12:18:09 pm »
Hi Ian ,
 I have to say Thanks for this wonderful article .. you save me from going Mad with getting
my HP3457A to connect to my HP82357B GPIB to USB .

Thanks for the kind words!

Let me know how you get on in terms of reliability with the 82357B, it's been a long while since I used my own one and there's been one report of issues with them.
Also, is yours an Ebay copy, or a legit HP unit?........the price paid if it was by Ebay is the dead give away.
NB. Mine is the cheap copy.

Ian.
My Hp82357B is an Ebay the Guy quoted it as an original the paper work was fake.
I opened it up as I was getting errors from it there was a bad connection on the chip 2 of the legs were shorting so I made good . The board looks like an original but has failed quality control or its a
really good clone as it has the Agilent marking and codes on the PCB.
 for $80 it now works first class .
    https://www.ebay.com/itm/192183274642
With your Program it works really good . I had to play with one or two settings
having the NRDGS set @ 100 made my screen plank out on the HP3457A so setting to10 .. OK
also it complained about end of line .. thing check box . 
I had it running on test for a few hours and it crashed but that was my mistake . it seems very
stable and the graph is  :-+ :popcorn:  :-+ .
Being an old time electronic hobbyist .

Just finished refurbishing an old 47 yr (1974) Dolby tape deck RS-676US for a friend .

The one thing that would be good to further is the CalRam backup .
I tried it and it seems to work OK it went though all the processes and saved 448 bytes which as far as I know is correct .  This was one thing I also wanted . as I have done a battery mode on the CalRam to ensure my cal is safe .. know is correct as per other posts .

Thanks Ian
« Last Edit: May 18, 2021, 12:21:09 pm by Labrat101 »
"   All Started With A BIG Bang!! .  .   & Magic Smoke  "
 
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Offline Labrat101

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Re: Windows GPIB App (multi-purpose)
« Reply #376 on: May 20, 2021, 09:49:18 pm »
Hi Ian
Just been play with your Program .
After fixing an old Fluke 515A calibrater which I picked up from Ebay  4 parts or not working.
It had a very ruff life .  after a week of sorting it out and recalibrating . I tried running  your program in Linux in VM Virtualbox works a charm  :-+
Left my fluke on the Graph for 2 hours to watch the 1.000001 volt, drifts  8uv max if I turn the AC off its less .  Its better than the original specs.
BTW graph as it sometimes off the screen as the screen is not resizeable in VM . Not a complaint  . Maybe in your  next update make the interface resizeable .

I noticed a few others have had trouble with there 82357B's if they were like mine they need to be opened and visually  checked some of the chip legs were not straight . and some of the SMD components were off set. after a 5 minuet clean up Good to GO.
Also on some versions there is a bad or damaged connection .

 :popcorn:  :-+
« Last Edit: May 20, 2021, 10:29:24 pm by Labrat101 »
"   All Started With A BIG Bang!! .  .   & Magic Smoke  "
 

Offline Labrat101

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Re: Windows GPIB App (multi-purpose)
« Reply #377 on: May 24, 2021, 02:19:50 pm »
Hi Ian,
Sorry I have a question about the Cal Location.
My HP3457A is date coded 92 and so are most of the chips.
on the back it it has purchest date of 95 by the company .
I have load a picture of VMram does this give any clues .
The Cal Ram (old Map)::  gave me 448 bytes with the last byte 22. which 34 the number of cals
this true also from the cal? = 34 . or have I just thinking wild .
Cal Ram New map  gives about a 1k of data and looks like the program section as it has a lot of the display commands visible .
I have a feeling the old Ram Map is good but Murphy nudge me ... Go 4 it !! :scared:

Thanks . Sorry for being a dummy at the software stuff .
PS the program works great and the graft very nice  :-+

Great Work .

"   All Started With A BIG Bang!! .  .   & Magic Smoke  "
 

Offline IanJ

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Re: Windows GPIB App (multi-purpose)
« Reply #378 on: May 29, 2021, 11:46:01 am »
Hi Ian,
Sorry I have a question about the Cal Location.
My HP3457A is date coded 92 and so are most of the chips.
on the back it it has purchest date of 95 by the company .
I have load a picture of VMram does this give any clues .
The Cal Ram (old Map)::  gave me 448 bytes with the last byte 22. which 34 the number of cals
this true also from the cal? = 34 . or have I just thinking wild .
Cal Ram New map  gives about a 1k of data and looks like the program section as it has a lot of the display commands visible .
I have a feeling the old Ram Map is good but Murphy nudge me ... Go 4 it !! :scared:

Thanks . Sorry for being a dummy at the software stuff .
PS the program works great and the graft very nice  :-+

Great Work .

I haven't investigated the ins/outs of the various cal ram maps for the 3457A too much........I did verify that my export matched one of the DOS cal ram extracts out there and thats about it. It's all theory until either I or somebody else confirms.
If I get a hold of another 3457A then perhaps I will be able to test more.

Ian.
Ian Johnston
www.ianjohnston.com
Manufacturer of the PDVS2 & PDVS2mini
 

Offline IanJ

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Re: Windows GPIB App (multi-purpose)
« Reply #379 on: June 05, 2021, 11:51:13 am »
Hi all,

New version V3.26 in Post #1 available for download.
[Virus acanned using Kaspersky Antivirus & Malwarebytes Premium]

This version is just some general minor bug fixes, and some changes to the PDVS2mini auto-calibration utility.

Ian.
Ian Johnston
www.ianjohnston.com
Manufacturer of the PDVS2 & PDVS2mini
 
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