Re: [volt-nuts] Datron 4000 DC/I/R Standard

2012-12-18 Thread JF PICARD
I am looking for the service manual of the Datron 4200A AC calibrator. I was unable to find anything neither on the net nor by manuals sellers ! Thanks From: Laurence Motteram To: Discussion of precise voltage measurement Sent: Tuesday, December 18, 2012 10:26

Re: [volt-nuts] Datron 4000 DC/I/R Standard

2012-12-18 Thread Laurence Motteram
I have seen a few Datron units with flickering or unstable displays that came up perfect when the display power supply electrolytic was replaced. Regards, Laurence Motteram -Original Message- From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On Behalf Of ed breya Sen

Re: [volt-nuts] Datron 4000 DC/I/R Standard

2012-12-18 Thread Andy Bardagjy
Mickle, wow thanks! Really great work you've done, I'm still digesting everything, spent quite a bit of time on that Russian forum. Also,I think I may have found a source for printed manuals but they are quite expensive. Really excited to see what shape my 4000 is in Andy Bardagjy bardagjy.com

Re: [volt-nuts] Datron 4000 DC/I/R Standard

2012-12-18 Thread Михаил
Hi, Andy! Thread you have found on bbs.38hot.net was created by me :) And there is another small message about Reference sub-board schematics on the russian http://www.radiokot.ru/forum/viewtopic.php?f=10&t=52829&start=180 All information I have about Datron 4000(A) is here: http://www.mediafire.co

Re: [volt-nuts] Datron 4000 DC/I/R Standard

2012-12-18 Thread Andy Bardagjy
Ed, thanks for your comments. In an image of the unit, it appears the front panel is a bit dented near the displays, and I'm worried they might be damaged - they are glass envelopes after all. I have managed to find a thread on a Chinese forum (possibly the same forum I've seen referenced in

Re: [volt-nuts] Datron 4000 DC/I/R Standard

2012-12-18 Thread ed breya
That seems like a nice piece of equipment if it works or is easily repairable. Why do you assume the displays are broken? If they used gas discharge displays, they would likely be Nixie or Panaplex type, which are pretty durable, and are still common enough to not be a problem with procurement.

[volt-nuts] Datron 4000 DC/I/R Standard

2012-12-18 Thread Andy Bardagjy
Hi folks, in a moment of weakness I picked up a (presumably broken) Datron 4000 Autocal Standard. It's a pretty neat device, the 4000A has a higher spec voltage reference and is claimed to be "suitable for 8.5 digit cal". Spec sheet: http://www.teknetelectronics.com/DataSheet/DATRON/DATRO_4000a