Products > Test Equipment
Fluke 289 - yet a good investment nowadays?
arturmariojr:
Hi, experts!
After decades I could buy one pre-owned Fluke 289.
A big meter and I was workin and trying some measures on it's main characteristc, as I thought: the trend graphic and data logging.
I have to say I'm quite disappointed with its performance.
I put my function generator on step mode (just 8 steps) and at 1Hz (so, steps were at 1/8 s), and other frequencies, up to 10Hz. This shoild be much less faster than aquisitiion rate stated on manual (I believe 100ms).
But the trend graphic can't repesent the real signal.
On Burst mode, for simulating spurious signal, It can't detect them too (VDC, 10v pulse, 0.1s).
Beyond such bad real results, display just't can be read without back light.
Using constantly backlight will consume faster the batteries. I really don't worry about this, as I can adapt a LiIon battery and charge circuits and never more will need to replace batteries.
I'm wondering: nowadays, we have tens of multimeters with oscilloscope function, even Fluke has their scopemeters. They shine with color LCDs, rechargeable batteries too.
Is Fluke 289 still a good investment, considering it's high price? And for a datalogging tool, it lacks the connection adapter, sold for high prices too...
What are your opnion? Could a multimeter-oscilloscope like Owon HDS2202 - 200MHz do the same tasks?
Thanks for sharing your comments with me!
Artur
pcbcrew:
For me, reliability is crucial.
Around 4-5 years ago, I spent several hours troubleshooting a PCB I had designed. It wasn't functioning properly for some unknown reason. When I attempted to measure the VCC voltage of the microcontroller using a multimeter, I found that it was reading around 2.5V instead of the expected 3.3V. It made my time wasted a lot, until I found that the multimeter reading in 10V range was incorrect.
I was only measuring some DC voltages with it. I didn't think I had put some surge on it in anytime since I'd bought it.
Following this discovery, I decided to assess the accuracy of the readings from the handheld digital multimeters (DMMs) I owned at that time. I had models from Uni-T, Owon, Victor, and Fluke. Only Fluke and Owon consistently provided accurate readings for all DC voltage ranges.
As Fluke's interface was simpler than Owon, I've been using the Fluke multimeter for my daily tasks ever since.
In my opinion, investing on Fluke 110 multimeter was worth enough for my daily use of 3.5-digit multimeter.
And if I need 4.5-digit multimeter for daily use, I'll choose Fluke 289 (or similar) without any reservation.
kripton2035:
I don't like the display of the 289 at all. and I read here on eevblog that they empty their batteries very fast...
I don't have one, so I can't argue more, but I have a 189 for years that I really like.
I also bought it second hand for a lower price than a 289.
I also have a fluke 867b that I really like too, and I use it for the trend measurments.
BeBuLamar:
I tend to agree with the OP. I have the 189, 287 and 289. I like the 189 a lot more. I didn't have to buy either the 287 or 289. I don't know but I think I can only get the 289/287 to log about 1 reading per second.
arturmariojr:
Hummm, It seems It does measures between the minimal 1s interval. It is dificult to affirm this, but moving on measurents on graph It stops on intermediate points. So, the real signal can be aproximated. But It shows out data to seconds only, so, this is my conclusion.
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