Products > Test Equipment

Fluke 189 with leaking surface mount supercap (also Fluke 287, Fluke 289)

<< < (20/64) > >>

Huluvu:
Just watched Martins Video and checked the behavior of my Fluke 189 which shows the same residues on the super-cap surface.
I found this remark in the Datasheet from Panasonic (page 20):


--- Quote ---7. Brown extraction
Brown extraction may occur around the sealing part depending on use conditions. This extraction is electrically nonconductive. Therefore, it does not influence in the electric characteristics.
--- End quote ---

For myself I will monitor the part periodically if something changed, but it is not that dramatically as described by the OP
i'm more concerned about leaking batteries by storing a meter for a long time period.

mimmus78:
Mine 287 is from 2007 or 2008 and supercap is corroded.

I think this should be changed ...

BravoV:

--- Quote from: winluk on January 03, 2014, 07:59:58 am ---Just had a look in my 289 - no corrosion on the cap.
I bought it in mid 2013 but the setup menu / info says it was built 25 Jun 2010 but calibrated 25 Apr 2013.
The board is Rev. 015.

--- End quote ---
That is weird, what is the current cal count ? If its still 1 (one), then this must be strange, manufactured in 2010 but with 2013 factory cal date is quite long time.  :o

Are you sure you're not mistaken by the bootloader's date at the info screen ?

Also "assuming" the marking at the cap represents the cap's date code, then your cap there is quite new (made at 2013), while at my 287 is manufactured in April 2013 (check post #14), and with the cap's date code at 2012.

Here my 287 info screen and it's box which stated its manufactured at April 2013, and yes, both serial no (blurred here  :P) are identical at the meter and at the box.



SeanB:
Bootloader build is the firmware build date, it would have been programmed later than that, and the cal date says it was finally assembled and tested probably the day before and then left running overnight for burn in prior to calibration. AFAIK Fluke uses an ATE bed to do cal, so the date would be the time of manufacture within a week at most before, and the first cal is the factory one.

winluk:

--- Quote ---That is weird, what is the current cal count ? If its still 1 (one), then this must be strange, manufactured in 2010 but with 2013 factory cal date is quite long time.  :o

Are you sure you're not mistaken by the bootloader's date at the info screen
--- End quote ---

Calibration Date: 25/04/13
Calibration Counter: 1
Board ID: 3
The rest is same as per your screen...

 |O  I'm DOPE!!!
The 'built' part is for the 2 liner... "ARM bootloader..... built 08:38:05, Jun 25 2010"  :)   

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod