Author Topic: Fluke 8842A Repair  (Read 15490 times)

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Offline fixitanonymous354

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Re: Fluke 8842A Repair
« Reply #25 on: March 11, 2018, 03:28:32 am »
Hi does anyone know where I can find a replacement 10M divider network for 8842A, part Z302, marked Fluke 5087 756130 1 ??
 

Offline lowimpedance

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Re: Fluke 8842A Repair
« Reply #26 on: March 11, 2018, 10:42:00 pm »
Transformer was the first thing I checked and resoldered (just to be sure).

My multimeter is working with some intermittent faults. Sometimes everything is fine and all self tests pass. Sometimes it start to show some strange results (like relatively large current with zero actual current) and start to fail some tests.

Looks like I should check and resolder everything, especially heavier parts, as it was subjected to a stress (rear bezel is destroyed completely, just a couple of pieces around screws remains - looks like it was dropped). 

Still unable to find photos of rear bezel "from inside". I'm planning to try to make rear bezel replacement on a 3D printer, but have to make a 3D model first.

 Okay, I have attached some pictures of the rear bezel on my 8840a (both the same!), so hopefully you can estimate the dimensions needed to draw up a replacement for 3D printing, (from the leftover peices you have  :) ).
Note on the photos the parts of the bezel which slide in between the outer casing and the inner frame.
« Last Edit: March 11, 2018, 10:44:27 pm by lowimpedance »
The odd multimeter or 2 or 3 or 4...or........can't remember !.
 
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Offline lowimpedance

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Re: Fluke 8842A Repair
« Reply #27 on: March 11, 2018, 10:48:22 pm »
Hi does anyone know where I can find a replacement 10M divider network for 8842A, part Z302, marked Fluke 5087 756130 1 ??
I'm afraid the most likely place would be from a parts unit. So keep an eye out for a 'junker' on your favorite website.
The odd multimeter or 2 or 3 or 4...or........can't remember !.
 
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