Products > Test Equipment

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

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dr.diesel:

--- Quote from: BravoV on November 10, 2013, 04:21:52 pm ---Just fyi, at the CDE type ELDR ultracap I pointed previously, after the exposure of 2000 h at +85 ºC ,still capable of maintaining ±30% of the initial measured value.

--- End quote ---

You are correct Sir, I should have put forth a bit more research into retrofitting a better cap, time got the best of me.

I'll be doing this exercise again in the future.    |O

smoothtalker:
is this leaking cap issue affecting all fluke 289? i'm disappointed with fluke how can this happen to their top of the line modal.

I'm thinking of buying 289, but now i guess i've to stick with 87v. fluke 289 is disappointing.. leaking cap, the ghosting dot matrix lcd, the poor battery life. expensive usb cable, and lack of thermal probe compared to 87v etc.

other than graphing are there advantages for 289 over 87v? ok i can see loz and crest factor calculation.

dr.diesel:
Really depends on your requirements.  I am not happy with my 289, it's huge and bulky, battery life is not good.  If they made the 289 in a compact bench unit I'd be a happy camper.

Note, there is an available TC probe for the 289, which I do use all the time.

BravoV:
I suspect the decaying cap has something to do with poor battery life ? :-//

dr.diesel:

--- Quote from: BravoV on November 13, 2013, 05:15:51 am ---I suspect the decaying cap has something to do with poor battery life ? :-//

--- End quote ---

Very true, but even with a properly working cap the battery life is not too good IMO.  If memory serves the 289 is rated for just under 200 hours, with no back-light use.  Probably fine for light duty use, but in heavy industrial applications your having to change the batteries every 2 week.

Here in the dark depths of a power plant, the auto power off and auto back-light off are always disabled. 

The 287/289 should have come with a rechargeable pack, charging nightly or every few nights would have sealed the deal.

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