Products > Test Equipment
FLUKE 107 - absolute garbage lasted 2 years
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thm_w:

--- Quote from: floobydust on July 03, 2024, 08:51:24 pm ---Fluke - battery compartment designed to funnel leaky battery goo right onto the jungle IC and kill it.
--- End quote ---

Given the low cost of the meter it feels acceptable. Their priority is making it cheap and quick to assemble/program/calibrate through those back holes.
Though if this were a $500 meter, they should have sprung for the ~25c cost to glue up the battery contacts to prevent liquid passing through the shell at all.

floobydust:

--- Quote from: wraper on July 03, 2024, 09:09:51 pm ---[...] I basically said fuck alkalines and I got rid of them in all of my devices and use LSD NiMH rechargeable batteries instead.

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Problem is many multimeters don't specify battery compatibility with different chemistries.
Fluke 107 "Battery Type 2 AAA, NEDA 24A, IEC LR03" wow so much info. What voltage range?

LSD Eneloop are a bit lower voltage than alkaline for a brief period initially, guessing around 1.35V and not sure when DMM low batt icon comes on. I'll try some out.
Energizer Ultimate Lithium L92 peak at 1.8V briefly when new, most DMM IC's will take 3.6V
Caliaxy:

--- Quote from: floobydust on July 03, 2024, 11:15:33 pm ---Energizer Ultimate Lithium L92 peak at 1.8V briefly when new, most DMM IC's will take 3.6V

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So just a friendly reminder: don't try that at home if you have a BM235...
najrao:
Not a DMM, but an Anritsu 'Sitemaster' spectrum analyser. When I got it, it was still snugly in it's beautiful carry bag, complete with two software CD's and 'standard accessories'.
The original 18V 1.8Ah NiMH 'SM-Energy' made in USA custom battery was still inside the compartment. It used Panasonic cells, and, unusual for such a battery pack, a 'BMS' with its own custom  IC, not to mention two thermistors for temperature reporting.
Now, the battery would not pull out from the instrument, so I parted the case halves to look inside. Attach 1. The battery had spewed so much liquid that it was wet everywhere around the case walls on both halves. The dried up disaster had to be seen to be believed.
After much vinegar, isopropyl , and elbow grease, just you look how I made all the goo go away. Attach 2-6. Damage to boards was only on just one inconsequential edge each.
The sitemaster works without battery, and it did, perfectly, on first power up.

Edit: Attach 1 has become the last, I am afraid.
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