Keithley 2010 Preliminary Porn - Page 1
Forum section: electronics / testgear

author: dr.diesel
author_rank: Super Contributor
timestamp: February 19, 2014, 03:04:43 pm
content: I hold Keithley's low measurement handbook and robrenz directly responsible for this purchase!In reality I simply needed another eye on the bench and thought I'd improve my resolution, with DCV and resistance measurements being the focus.For whatever reason the 2010 is not particularly popular, but it does offer 7-1/2 digits and offset compensation to help reduce thermal EMFs. A few highlights:A few internal picts, I can't get the aluminum cover off without pulling the entire board. My new capacitors haven't arrived yet, but once they do I'll pull the board and take further picts. The voltage reference appears to be the SL40057 from LT, which I can't find any info on? It's a 4-pin device which would lead me to a LM399, however I didn't think it was quite up to the task of this resolution. Note the temperature of the -15v reg in the second pict, a bit high for my comfort level.The 2010 is a single board, shares the same high speed, low noise A/D converter technology as the Models 2000, 2001, and 2002 according to their website. This one was manufactured in late 99 with the last and only cal being 2/25/2000. The power supply caps appear fine, but I'm planning to replacement them, then ship it off to Keithley for a firmware update and full cal.

author: Vgkid
author_rank: Super Contributor
timestamp: February 19, 2014, 03:15:43 pm
content: Thanks for opening her up, the vref could be a selected low noise sample of the lm399. Does it say anything on the side of the package?

author: dr.diesel
author_rank: Super Contributor
timestamp: February 19, 2014, 03:18:18 pm
content: Quote from: Vgkid on February 19, 2014, 03:15:43 pmNot too much on the side, Philippines E94022.

author: don.r
author_rank: Frequent Contributor
timestamp: February 19, 2014, 03:28:40 pm
content: and the Keithley strip tease just continues...Thanks, Doc.

author: robrenz
author_rank: Super Contributor
timestamp: February 19, 2014, 03:37:37 pm
content: I am sorry for being a bad influenceYou may want to make a box connector like towards the end ofthis videobut without the switching for connecting your Kelvin clips to your beautifull new Keithley

author: dr.diesel
author_rank: Super Contributor
timestamp: February 19, 2014, 03:41:36 pm
content: Quote from: robrenz on February 19, 2014, 03:37:37 pmYou canneverhave enough equipment, just let me know what to buy next!

author: robrenz
author_rank: Super Contributor
timestamp: February 19, 2014, 04:12:02 pm
content: You askedIf you really want to measure low ohms to high accuracy I have a IET/Cambridge Technology 510A Micro-Ohmmeter for sale.It is .02% + 2 counts + 2µOhm accuracy. On its lowest 19.999mOhm range measuring 1mOhm that's 0.42% of reading.

author: dr.diesel
author_rank: Super Contributor
timestamp: February 19, 2014, 04:29:41 pm
content: Quote from: robrenz on February 19, 2014, 04:12:02 pmI've had one in my eBay search list for months,, I'll shoot you an email.

author: TiN
author_rank: Super Contributor
timestamp: February 20, 2014, 12:44:22 am
content: That's selected LM199/399. My 2001's have same one, and I chopped plastic cover on one of them, it was LM399.In some sources some were LM199...Moar photos!

author: dr.diesel
author_rank: Super Contributor
timestamp: February 21, 2014, 07:34:53 pm
content: Front and back, with the cover removed:

author: chickenHeadKnob
author_rank: Super Contributor
timestamp: February 22, 2014, 10:47:18 am
content: Is it really the same analogue multi-slope AD board (or section) in all of 2001, 2002. 2010 ? This would imply possible home uprating on 2001's hmm....Noticed in one of TiN's reveals they were using OP177's, not a bad op amp but I thought there might be better now-a-days.Thank you for the pics

author: dr.diesel
author_rank: Super Contributor
timestamp: March 29, 2014, 03:44:19 pm
content: Update, finally back (received March 28th) from Keithley!This is my first cal process outside of the corporate environment. It took two rounds with Keithley to even get a cal quote, first one came back as a quote for a new 2010! Anyhow, here is the breakdown:Calibration std price: $315, Optional Data: $65, $180 for a firmware update and $12.50 return shipping. I had no personal reason for the data, just thought it might be of some interest to others here. From the documentation I knew there was at min 6 newer firmware revisions, so I opted for the latest.Keithley received the meter on March 10th. On March 18th I received an email stating the meter was "noisy" and required repair with a new quote:Repair with Cal: $1120, Optional Data: $65 and $12.50 return shipping. It would have cost me the $180 and $12.50 to have them simply return it without repair. Note this is total, not in addition to the above first cal quote.For those interested in what a "noisy" Keithley 2010 with a 14 year old cal reads:I tested the meter thoroughly before sending in for cal, but I'm not going to call them out, I am for the most part satisfied with how to went. The repair included an entirely new board, rubber keyboard membrane, and I'm pretty sure VFD. A lot of good those new caps did me, ha ha.Summary:Used 2010 for: $1000New PS Caps: ~$30Repair/Cal total: $1197.50In total about 2/3s of a new unit.

author: Vgkid
author_rank: Super Contributor
timestamp: March 29, 2014, 04:31:03 pm
content: Thanks for the update, it is interesting to note the ranges that it failled.

author: TiN
author_rank: Super Contributor
timestamp: March 29, 2014, 04:58:23 pm
content: Thanks for data, interesting to find lots of values in 8.5 digit mode. None of my 2001's data cal have even 7.5 there.180$ for replacing ROM chip with firmware? WowI had mine 2001 replaced for free, no cost increase.Do you know what was repaired?From cost it would look like they replaced whole board maybe.

author: dr.diesel
author_rank: Super Contributor
timestamp: March 29, 2014, 05:05:47 pm
content: Quote from: TiN on March 29, 2014, 04:58:23 pmYup, the 2010 is a single board aside from the VFD. The board was for-sure replaced and I think they also swapped the VFD, noticeably brighter and no more soft spots around the edges of some of the characters.

author: TiN
author_rank: Super Contributor
timestamp: March 29, 2014, 05:12:54 pm
content: Cool, so you got all new meter basicallyPhotos?

author: dr.diesel
author_rank: Super Contributor
timestamp: March 29, 2014, 05:15:35 pm
content: Quote from: TiN on March 29, 2014, 05:12:54 pmYup! Give it a few days powered up, then I'll peel off the new cal/warranty sticker

author: saturnin
author_rank: Regular Contributor
timestamp: November 27, 2017, 04:16:01 pm
content: dr.diesel,since the warranty sticker is several years old, would you open your unit and share a couple of photos from inside? I am curious whether Keithley updated K2010 design as they did in K2000 case. Thanks!

author: dr.diesel
author_rank: Super Contributor
timestamp: November 29, 2017, 06:40:57 pm
content: Quote from: saturnin on November 27, 2017, 04:16:01 pmA recent change would surprise me, but hang tight, I'll pop it open before long, just been SUPER busy lately!

author: chekhov
author_rank: Regular Contributor
timestamp: September 26, 2022, 05:00:39 pm
content: Here is part of K2010 updated board that allows to replace TF-245 with off-the-shelf resistor networks.