Products > Test Equipment
Old Fluke Multimeters
frozenfrogz:
It’s not in the power section though :)
There seems to have been some minor liquid intrusion that lead to disintegration of some traces. The general board quality is absolutely below grade - at least for what I would have expected from a professional 1990s made measurement device.
frozenfrogz:
Another 80xx meter has landed :) This time it is an 8024A.
What’s odd to me: The fuse holder is stuck on the back of the battery connector. Also it is only for a 2A 250V 5x20mm glass fuse (AGX-2).
The assembly is made out of riveted card board. There are also no rubber feet on the back.
Am I correct in guessing this meter is pre 1980s?
Would you be interested in tear down pictures?
Fungus:
--- Quote from: frozenfrogz on March 13, 2018, 12:43:48 pm ---Would you be interested in tear down pictures?
--- End quote ---
What do you think?
rsjsouza:
--- Quote from: frozenfrogz on March 13, 2018, 12:43:48 pm ---Another 80xx meter has landed :) This time it is an 8024A.
What’s odd to me: The fuse holder is stuck on the back of the battery connector. Also it is only for a 2A 250V 5x20mm glass fuse (AGX-2).
The assembly is made out of riveted card board. There are also no rubber feet on the back.
Am I correct in guessing this meter is pre 1980s?
Would you be interested in tear down pictures?
--- End quote ---
The design was done mid to late 1970s - that is how they rolled back then... 8)
The earlier 8020A/8022A/8024A family of portable Flukes usually had a single 2A fuse tied to the battery - the road to CAT ratings was still being paved.
The later "B" revisions of these meters replaced it with an HRC 3A fuse inside the meter.
The 8024A/8024B/8060A/8062A had two fuses: the glass and the HRC.
Modemhead's excellent teardown of an 8020B
This 8024B teardown from the user Spawn has pictures missing from the server (expired account). I'll ask him if they can be re-posted.
frozenfrogz:
--- Quote from: rsjsouza on March 13, 2018, 03:58:49 pm ---The earlier 8020A/8022A/8024A family of portable Flukes usually had a single 2A fuse tied to the battery - the road to CAT ratings was still being paved.
The later "B" revisions of these meters replaced it with an HRC 3A fuse inside the meter.
[...]
This 8024B teardown from the user Spawn has pictures missing from the server (expired account). I'll ask him if they can be re-posted.
--- End quote ---
Thanks for the info :) Funny enough, the copy of the 8024A manual I found features the same HRC + glass fuse configuration as the 8020B, 8060A you mentioned.
Given that the pictures are not accessible any more and me liking to take some photos, I will write a small article with pictures.
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