WTB: Voltage reference  based off LTZ1000 etc - Page 1
Forum section: electronics / general

author: TheSteve
author_rank: Unknown
timestamp: December 24, 2016, 03:35:59 am
content: I am looking to buy a voltage reference based off the LTZ1000Anyone have anything they wish to part with?

author: TheSteve
author_rank: Unknown
timestamp: December 26, 2016, 09:39:21 pm
content: I should edit my post I guess. I am looking for an assembled reference based off the LTZ1000. I can order all of the needed parts and assemble one, especially with TiN's help, but it is a slow process as they need proper aging. It would be fun to get one that is ready to go so I can connect it to my 3458A to see how it is doing.

author: bills
author_rank: Frequent Contributor
timestamp: December 26, 2016, 09:50:58 pm
content: How about this?http://www.ebay.com/itm/DMM-Check-Calibrator-Tester-AC-DC-Voltage-Current-Freq-Reference-Standard-/272469112760?hash=item3f706cb7b8:g:BAEAAOSwgQ9VpHlx

author: TheSteve
author_rank: Unknown
timestamp: December 26, 2016, 09:57:32 pm
content: Quote from: bills on December 26, 2016, 09:50:58 pmLooks nice but that isn't up to the task of verifying the performance of an HP 3458A.

author: Macbeth
author_rank: Super Contributor
timestamp: December 26, 2016, 09:59:12 pm
content: A very fine reference but only 5V and 70ppm. 3458A stuff has to be 10V and 1ppm at least, preferably <0.1ppm

author: Kleinstein
author_rank: Super Contributor
timestamp: December 26, 2016, 10:06:05 pm
content: You might be lucky an find a used Fluke 731 or similar on ebay.

author: bills
author_rank: Frequent Contributor
timestamp: December 26, 2016, 10:12:23 pm
content: Quote from: Macbeth on December 26, 2016, 09:59:12 pmThey also have a 10v. version .003%http://www.ebay.com/itm/10VDC-003-Precision-Voltage-Reference-Standard-/282156304382?hash=item41b1d387fe:g:DekAAOSwxH1T7CTN

author: Macbeth
author_rank: Super Contributor
timestamp: December 26, 2016, 10:23:58 pm
content: Quote from: bills on December 26, 2016, 10:12:23 pm30ppm is still way out of line. It looks great for 6.5 digit meters but for 8.5 digit you need the famousCalibratory snake oil "2ppm reference"Just look at his wall-of-text. If that doesn't convince you nothing will!Or perhaps a portable LTZ1000 based ref like OP wants. It seems there is certainly a market amongst the volt nuts for a very precise portable standard that can be swapped around...

author: Vgkid
author_rank: Super Contributor
timestamp: December 26, 2016, 11:39:41 pm
content: This one might be a 10v output, but i haven't researched it.http://m.intl.taobao.com/detail/detail.html?spm=a1z5f.7632060.0.0&id=526154072652The boardhttp://m.intl.taobao.com/detail/detail.html?spm=a1z5f.7632060.0.0&id=524128498209I haven't looked into it, but it looks good.http://m.intl.taobao.com/detail/detail.html?spm=a1z5f.7632060.0.0&id=15204955373

author: bills
author_rank: Frequent Contributor
timestamp: December 27, 2016, 01:40:24 am
content: Here is one 0.0002%.http://www.ebay.com/itm/10-Volt-10-V-DC-Prec-Voltage-Reference-Standard-Nulled-to-Fluke-732A-or-732B/251756273626?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D38530%26meid%3Dab4cc281df944d28bc61a2bf19e1bc5c%26pid%3D100005%26rk%3D4%26rkt%3D6%26sd%3D272486808317BTW I am also looking for inexpensive one as well.

author: SvanGool
author_rank: Regular Contributor
timestamp: December 27, 2016, 10:05:23 am
content: @billshttps://www.eevblog.com/forum/metrology/calibratory-d-105-dc-precision-voltage-reference-standard/

author: Andreas
author_rank: Super Contributor
timestamp: December 27, 2016, 10:58:37 am
content: Hello,I think that this is a more serious offer:http://www.friedrich-messtechnik.de/index.php/allgemein/93-dc-reference-standard-esn-2010-ltzwith best regardsAndreas

author: bills
author_rank: Frequent Contributor
timestamp: December 27, 2016, 09:37:35 pm
content: Quote from: SvanGool on December 27, 2016, 10:05:23 amI was thinking about getting one, but God told me not to.

author: guenthert
author_rank: Frequent Contributor
timestamp: December 28, 2016, 12:57:36 am
content: Quote from: Andreas on December 27, 2016, 10:58:37 amIt sure looks well done, claims to have the right ingredients and the fellow seems to have the right tools to calibrate and monitor it. Beyond that I was unable to figure out, whether he offers it for sale or whether that was an one-off for private use. Neither could I figure out, whether the web site belongs to an engineering company or an electronics enthusiast. The web site superficially looks professionally done, but fails to communicate the essentials.But perhaps I'm just too dense?

author: TiN
author_rank: Super Contributor
timestamp: December 28, 2016, 04:58:32 am
content: My offer to build you one, very similar tothis modulestill stands, using second-market resistors and brand new LTZ1000A/non-A chip. I can also provide +/-1ppm calibration with it.

author: Theboel
author_rank: Frequent Contributor
timestamp: December 28, 2016, 12:52:47 pm
content: Quote from: TiN on December 28, 2016, 04:58:32 amwow its very generous offer