Fluke 867, 863, 865 or 867B Charging Adapter Connector Physical Dimensions - Page 1
Forum section: electronics / repair

author: Maniac303
author_rank: Newbie
timestamp: October 09, 2021, 08:18:16 pm
content: Hello, my first post!I have purchased a used, damaged Fluke 867 Multimeter (which I intend to fix), and it has no charging adapter and those of you who own one of these will know that they, the instrument themselves and their adapters, are relatively rare. To make matters worse, the adapter uses a 'proprietary' barrel connector. (Also used by the 863, 865, 867B)The adapters themselves sell for as much as $300, though I have found an aftermarket knock off for ~$65USD, I am considering building one, which will involve sourcing the barrel and casting the plastic end using a mold.To that end, might there be some kind soul who owns one of these units that could measure the connector and provide me with the data I need to make my own?To facilitate, I have drawn up the diagram below, and am looking for the following measurements;A: Plastic Barrel Length :B: Metal Barrel Length :C: Plastic Barrel Diameter :D: Metal Barrel Diameter :E: Tip Hole Diameter :Thanks in advance to anyone who is willing to take this on for me. I did search the forum, no luck.

author: shakalnokturn
author_rank: Super Contributor
timestamp: October 09, 2021, 11:28:57 pm
content: I have a 867B if no one beats me to it, I should get back to you in a couple of days with dimensions.What symptoms/history does your faulty meter have?

author: Maniac303
author_rank: Newbie
timestamp: October 10, 2021, 12:00:33 am
content: Shakal,I am not sure what the symptoms are yet, as I have yet to get it in my hands, it is being shipped to me.It looks pretty beat up. I purchased it as a 'parts' unit, at a low price, and am hopeful that the processor and memory are intact. If so I think I might be able to manage a repair (famous last words!).It has been opened up, the battery has been removed as well as missing the charger.If you can grab the dimensions of the adapter that would be great, thank you.Has yours behaved itself? Any common faults that come to mind?

author: shakalnokturn
author_rank: Super Contributor
timestamp: October 10, 2021, 04:37:37 pm
content: A: 20mmB: 8.3mmC: 4.9mmD: 3.46mmE: 1.2<E<1.38 (Bracketed with my precision screwdrivers, 1.3mm should be very close to actual diameter.)I bought my second 867B a few days ago, it's working, battery is dead of course, it had a few dead lines on the LCD when first powered on that have gone back to normal since, still not good news for the LCD.The first one had been dissolved in battery juices. Rechargeable battery is also on the end of it's life and I'd like to convert them to Li-Ion one day.Repair topic for this one is here:https://www.eevblog.com/forum/repair/after-three-evenings-with-a-fluke-867b/Includes a ROM dump if needed.As for common problems: Can't say not experienced enough, I'm sure you'll get a clue if you search the forum and www a little.

author: onlooker
author_rank: Frequent Contributor
timestamp: October 10, 2021, 05:21:55 pm
content: A while back, I made my own with scrapped materials. Two layers of heat shrink wrap made it rigid enough.I also made the optical port adapter. But, I remember the Fluke software works only in WinXP..

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: October 10, 2021, 05:28:55 pm
content: Quote from: shakalnokturn on October 10, 2021, 04:37:37 pmShakalnokturn, are YOU also lacking a vernier caliper? tsk, tsk, tsk!

author: shakalnokturn
author_rank: Super Contributor
timestamp: October 10, 2021, 06:44:10 pm
content: Quote from: Neomys Sapiens on October 10, 2021, 05:28:55 pmI have a cheap digital sliding caliper and a few quality micrometric ones, but I don't have anything that really suits measuring the diameter of small bores. I measured in between what fitted and the next size up that didn't quite.

author: Maniac303
author_rank: Newbie
timestamp: October 10, 2021, 08:54:06 pm
content: Thanks so much for getting back to me with those dimensions! I’ll post on my repair attempts when it arrives. Cheers!

author: Maniac303
author_rank: Newbie
timestamp: October 19, 2021, 08:49:35 pm
content: My Fluke 867 has arrived (purchased "as is for parts/repair) and upon inspection I may be fortunate in that there is an obvious fault, the bridge rectifier CR1 and what I assume is or was CR13 have let out a lot of magic smoke.I have yet to check any other components, or attempt to power it up but hopefully little else is 'blown' (famous last words).All I can find on line is the SM for the 867B and this is an 867. Are they the same schematic and BOM or are there material differences other than in the software?This meter was obviously well used, it seem to have come from the oil patch in Alberta, and looks as if it might have been thrown down an (oil) well.

author: mdubinko
author_rank: Contributor
timestamp: October 19, 2021, 08:53:07 pm
content: You might also be interested in the notes I've compiled herehttps://github.com/mdubinko/Fluke-BE860-series-restoration(I'll double-check my pixel-inferred numbers against the measurements in this thread)I've also constructed a working adapter -- notes in the README.-m

author: Maniac303
author_rank: Newbie
timestamp: October 19, 2021, 09:16:49 pm
content: Thanks Micah!

author: mdubinko
author_rank: Contributor
timestamp: October 20, 2021, 01:18:44 am
content: My homemade connector (instructions for which are on Github)

author: jsantoro
author_rank: Regular Contributor
timestamp: October 20, 2021, 04:36:12 pm
content: I have the opposite problem. I have the charger but the jack on the meter is hosed. Took it apart ad someone tried gluing it together. No clue where to find one other than from a trashed meter.

author: mdubinko
author_rank: Contributor
timestamp: October 21, 2021, 07:44:57 am
content: Please post pictures. (In a new thread, if warranted)

author: shakalnokturn
author_rank: Super Contributor
timestamp: October 21, 2021, 09:07:04 am
content: My recently acquired 867B has a poor contact on the socket, I'll have to look into that soon too.

author: kdl1950
author_rank: Contributor
timestamp: February 25, 2023, 08:05:32 pm
content: Hello everyone,I also found a cheap solution to making a replacement charger.I ordered the following from a well-known Internet auction house in China:3.5mm x 1.3mm USB cableI used a grinder to grind the plug down to the right diameter.The end reinforced with shrink tubing.The result can be seen in the pictures.A good solid 12V charger connected.The result speaks for itself.One more note why 3 pins are connected to the meter socket. Although the charging plug only has two poles.The red wire is the + pole 12V (middle)The black wire of the - pole GND (outside)The green wire has the following function. If no charging connector is plugged in, the green pin is connected to the black pin.When plugging in, the contact opens and only the ground GND is placed on the black cable. Green is not connected.Good luck with rebuilding. For questions, just let me know.

author: kdl1950
author_rank: Contributor
timestamp: February 25, 2023, 08:07:31 pm
content: Here is the finished result.