Products > Test Equipment
Fluke 8600A Battery / Power Supply Conversion
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xrunner:
The solution I'm going to use is coming out of this box, but there's more to it than just soldering up a couple of wires.  8)

edavid:

--- Quote from: xrunner on March 14, 2015, 10:17:18 pm ---The solution I'm going to use is coming out of this box, but there's more to it than just soldering up a couple of wires.  8)

--- End quote ---

The trouble with that is that some of the 8600A DC-DC converter modules are not really happy at 5.0V, they need 5.5V or so.
xrunner:

--- Quote from: edavid on March 14, 2015, 10:22:53 pm ---The trouble with that is that some of the 8600A DC-DC converter modules are not really happy at 5.0V, they need 5.5V or so.

--- End quote ---

Oh I already checked it out with 5V from my bench supply - it's happy.  ;)

But I have found a candidate. I've patched it in and the meter works perfectly. I'm going to integrate the little board into the meter, this is just a test. The little switcher can handle 700 mA A. It ran all afternoon with no problems at all. The meter will still use the same line cord as usual.

xrunner:
I removed the little supply from it's "wart" and will be mounting it inside the meter along with the mounting parts for the batteries, so as to keep all the original parts inside. It turns out I have to do little to make this work. First off I'm pulling the input wires for the transformer and bundling them inside some heat shrink - they will be unused. The mods I'm making are shown in the schematic.





SeanB:
Add the optional MOV to that little board, it will help it last longer.
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