Author Topic: Difference between fluke 289 and 287 ?  (Read 7908 times)

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Offline fa2ality

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Difference between fluke 289 and 287 ?
« on: December 27, 2011, 03:59:21 PM »
As it says in the subject. The only thing I found on google is this:

"Both the 289 and 287 have data logging capability.  The only additional features of the 289 are a low pass filter to eliminate high frequency interference, a low impedance AC Volts function, and a low ohms range for measuring resistances less than 50 ohms."

I will be using it for computer and laptop motherboard probing. Which will better fit my needs?

Offline Richard W.

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Re: Difference between fluke 289 and 287 ?
« Reply #1 on: December 28, 2011, 12:52:48 AM »
You already mentioned the only differences. LoZ, LoOhm, 1kHz LowPass
LoZ is handy for checking sockets, LoOhm for checking cables, connectors and that stuff, and the low pass filter is good for vf motor drives.

Difference in price isn't that much. The extra features are worth it.

I'd recommend to buy the kit with the usb-interface, software, bag, ect.

Offline Axel1973

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Re: Difference between fluke 289 and 287 ?
« Reply #2 on: December 28, 2011, 04:06:15 AM »
i bought me the 289 as a kit a few weeks ago and must say its an EXCELENT Multimeter. as you statet there are just small differences. like the low ohm range.

fluke mentioned it as to be usefull for someone who does lots of "high current motor stuff" going on. well i dont do that, but i found it handy on meassuring cables, low ohm resistors or connections, since it seems this low ohm range is even more precisely as the normal ohms range.

to me it was not important, but i just wanted the lil extra "just in case" i would need it one day, and i already used it few times yet.

So i thing its more a question of "commitment" (dont know a better word yet), or the question of beeing ready to pay the lil extra.

if the extra money is a problem and u do not work with this kind of topics, you will not need it. else i found it usefull and my decicion to select the 289 been correct yet.

and im just an "amateur" :) not a everyday electronics engineer. but i love good tools.

best wishes
Axel

Offline fa2ality

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Re: Difference between fluke 289 and 287 ?
« Reply #3 on: December 28, 2011, 04:20:06 PM »
Can it test esr in circuit?
Will i still need an esr meter if i have the 289?
« Last Edit: December 28, 2011, 05:38:28 PM by fa2ality »

Offline Axel1973

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Re: Difference between fluke 289 and 287 ?
« Reply #4 on: December 28, 2011, 07:59:59 PM »
Can it test esr in circuit?
Will i still need an esr meter if i have the 289?

i didnt checked the manual yet for ESR testing, but as far as i remember, i did not see any feature like that on the datasheets. so i guess NO. Its not cooking coffee neither :) maybe after some firmware update.

I also need some kind of ESR Test equipment too. but i want to try a simple cheap DIY version. not a "fancy/precise" one for the beginning.

OH and BTW: the logging feature and those fancy "curves" that are shown on some datasheet/prospect ARE NOT an equivalent for an oscilloscope! Those are JUST trend graphes of the long term data that has been captured over time.

best wishes
Axel

Offline Bored@Work

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Re: Difference between fluke 289 and 287 ?
« Reply #5 on: December 29, 2011, 05:08:42 AM »
Difference between fluke 289 and 287 ?
Someone just has to give that answer :-

2
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Offline ipman

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Re: Difference between fluke 289 and 287 ?
« Reply #6 on: December 29, 2011, 05:29:09 AM »
It will not test in-circuit.
An ESR-meter is just an AC ohm-meter, testing with a voltage lower than 0.6 volts and a frequency of around 100kHz. It's very precise for measuring low resistances, compared to my Fluke 189. My ESR-meter can go down to 0.01ohm, so does the 189, but the main thing is AC instead of DC in Fluke DMM. Being that sensitive, I've made a special pair of probes, around 10cm short, with good banana jacks soldered on one end and alligators on the other, which I highly recommend to anyone uses ESR-meters.
Wife hates words like Fluke, Ersa ...

Offline samgab

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Re: Difference between fluke 289 and 287 ?
« Reply #7 on: December 29, 2011, 05:57:03 AM »
Difference between fluke 289 and 287 ?
Someone just has to give that answer :-

2

It already has been answered, both in the original post, and in the second post of this thread.
The 3 differences listed are the only differences.

Offline Axel1973

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Re: Difference between fluke 289 and 287 ?
« Reply #8 on: December 29, 2011, 06:04:16 AM »
So what ?!


Offline Bored@Work

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Re: Difference between fluke 289 and 287 ?
« Reply #9 on: December 29, 2011, 07:30:58 AM »
Difference between fluke 289 and 287 ?
Someone just has to give that answer :-

2

It already has been answered, both in the original post, and in the second post of this thread.
The 3 differences listed are the only differences.

Subtract 287 from 289 ...
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Offline Axel1973

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Re: Difference between fluke 289 and 287 ?
« Reply #10 on: December 29, 2011, 09:29:37 AM »
duh.. oh realy?!

the point is, why do u start arguing about that redundant question and the redundant, but "to the point" anwser? id say its at least "as useless".

Offline samgab

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Re: Difference between fluke 289 and 287 ?
« Reply #11 on: December 29, 2011, 10:58:31 AM »
Difference between fluke 289 and 287 ?
Someone just has to give that answer :-

2

It already has been answered, both in the original post, and in the second post of this thread.
The 3 differences listed are the only differences.

Subtract 287 from 289 ...

lol :D Don't I feel like a dunce!


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