Solved: Fluke 110 Plus - No means to calibrate? - Page 1
Forum section: electronics / testgear

author: JP16A60
author_rank: Unknown
timestamp: July 07, 2016, 11:33:55 pm
content: Bought a new-old-stock Fluke "110 Plus" DMM that is definitely out of spec, but cannot locate any cogent calibration steps.The owner's manual that came with it (and every online manual I could find) refers to calibration steps that don't jibe with the actual meter that I have (i.e., there is no "recessed button" under the calibration sticker--heck, there's no calibration sticker, either). Various button presses while turning the meter on only produce the expected, documented "power-on" behaviors (e.g., turn the backlight or beep functions off).I took it apart and there are definitely no mechanical mechanisms (i.e., adjustment pots) available inside.I spoke to Fluke support, who referenced the same manual that I already had, and said, "Sorry, I don't have any additional information available for you." They suggested that I send my $52 eBay DMM to them for what would almost certainly be a $200 repair/calibration.It's shiny, new, and useless. I'm seriously ready to just set this thing on fire and walk away.JP

author: Monkeh
author_rank: Super Contributor
timestamp: July 07, 2016, 11:46:04 pm
content: Hold the hold button and switch it on directly into ohms.

author: JP16A60
author_rank: Unknown
timestamp: July 08, 2016, 12:20:25 am
content: Quote from: Monkeh on July 07, 2016, 11:46:04 pmYep, just found this in a manual from another model (Fluke 114). Now I have to figure out the calibration password, which does not appear to be the documented "1234".Based upon the 114 instructions, I'm assuming that once I enter the last correct digit, it should go to to "C 01". I've tried just about every common four-number combination without any success.There is a documented procedure to restore the default factory password, but as this was unopened when I purchased it, I'm pretty sure it's just a case of the default not being "1234" on this meter, so no benefit from trying to reset.JP

author: Monkeh
author_rank: Super Contributor
timestamp: July 08, 2016, 12:23:14 am
content: Is the calibration counter >1? Even if not, if the logical default password (why would it NOT be 1234?) does not work, then there's a benefit from trying to reset.

author: JP16A60
author_rank: Unknown
timestamp: July 08, 2016, 12:31:35 am
content: The password is "4411"...I brute-forced it (i.e., worked my way sequentially through every combination). Grrrr.Well, at least I'm in!JP

author: JP16A60
author_rank: Unknown
timestamp: July 08, 2016, 12:36:30 am
content: Quote from: Monkeh on July 08, 2016, 12:23:14 amCounter was at "n001" (which I expected, since it was still sealed in the blister pack when I received it).Maybe I'll try to reset it just for giggles and see what it defaults back to.Thanks again for the help!JP

author: Monkeh
author_rank: Super Contributor
timestamp: July 08, 2016, 12:37:26 am
content: Good luck! Brand new it should've been bang on, so odds are something is wrong.

author: JP16A60
author_rank: Unknown
timestamp: July 08, 2016, 12:38:46 am
content: Quote from: Monkeh on July 08, 2016, 12:37:26 amWell, at least I won't have to set it on fire now.JP

author: retiredcaps
author_rank: Super Contributor
timestamp: July 08, 2016, 03:39:36 am
content: Can you provide an example of how far it is out of calibration? For example, on a 5V reference, what does the 110+ read?It is strange that Fluke reused an old model number and put a + on the end when the two look nothing alike.PS. There is another eevblog member that said their brand new Fluke 17 was out of calibration, but since there is no warranty outside China and the cost of sending it back was too much $$$, he has a meter that is out of cal.

author: BMack
author_rank: Regular Contributor
timestamp: July 10, 2016, 04:14:41 am
content: Are you sure the 110 Plus is new old stock? Lowe's started carrying them later last year...I thought they seemed like a SMU because it was different from the old 110 and I couldn't find any info on it, the 110 Plus looks essentially like a Fluke 114.

author: Monkeh
author_rank: Super Contributor
timestamp: July 10, 2016, 04:41:37 am
content: Far as I can tell, a 110 Plus is just a 114 sold by Lowes.