MJLorton Solar Power and Electronic Measurement Equipment Forum
Product Reviews => Product Reviews => Topic started by: Mr Eastwood on August 21, 2012, 09:08:37 AM
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For anyone interested.
(http://tinypixels.co.uk/test_equip/idm_305/front.jpg)
(http://tinypixels.co.uk/test_equip/idm_305/board_1_left.jpg)
(http://tinypixels.co.uk/test_equip/idm_305/board_1_right.jpg)
(http://tinypixels.co.uk/test_equip/idm_305/board_2.jpg)
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What I found as interesting is the 10A or 15A Fast Fuse,
it looks to be made by a brand called as Mitron, that I have never see before.
Can you take some good pictures just of the fuse? ( For my collection) :)
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What I found as interesting is the 10A or 15A Fast Fuse,
it looks to be made by a brand called as Mitron, that I have never see before.
Can you take some good pictures just of the fuse? ( For my collection) :)
Hi K, The fuse is actually by Limitron, the pic just didn't show the other few letters.
Digikey Part
http://www.digikey.com/product-detail/en/KTK-15/283-2467-ND/265006 (http://www.digikey.com/product-detail/en/KTK-15/283-2467-ND/265006)
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Thanks very much, I enjoyed seeing that.
Do you find the "menu" system a bit of a fiddle....or happy with it?
Cheers,
Martin.
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Do you find the "menu" system a bit of a fiddle....or happy with it?
Hi, I am happy with it; I would say the UI flow is more on the unintuitive side than the intuitive side, as I fumbled around and had to get the instruction book out to look-up some features; I would see that as a problem or possibly annoying if you have several DMM's; But for me because it's my main DMM it's fine.
I haven't tried the software but from your IDM 207 video - the software did look a bit clunky or programmed by engineers with no designer input;
I found the RS232 info for the 300 series DMM's so I was actually thinking of writing a version myself to show them how it's done ;-)
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Just checked the digikey link. OMG those are plain thieves, 22$ for a Fuse ?
I will start reselling Fuses from Greece to worldwide our retail prices with VAT are cheaper than digikey.
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You need to order 100, and 50 small Jiffy padded bags to pack them in 2's so all you need do is print an address label and place a stamp on.
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I thought the lcd screen display looked familar. See
http://www.idealindustries.com/media/pdfs/nd_2352-1_61-33_630_series.pdf
2 updates/sec at 40,000 count and 4 updates/sec at 4000 count.
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I thought the lcd screen display looked familar. See
http://www.idealindustries.com/media/pdfs/nd_2352-1_61-33_630_series.pdf
well spotted! - I didn't know that! So it's known as the APPA 305, the Iso-Tech 305 and the Ideal 61-635.
Also I've just found the that the APPA 500 Series, is sold as the Ideal 61-498, which I believe is 100,000 count, DCV accuracy is up to 0.015%.
With regard to the IDM 305; In a short conversation with the RS Online regarding calibration drift they remarked "We've had good reports from these, no reports or investigations into this on in the history we've had this. I know the Flukes are very well regarded but we've had no issues raised with the Isotechs"
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The factor of " X updates per second VS thousands of counts " are one from the most important quality factors in my reviews.
When the most low cost designs are strangled to deliver 2.1/2 or 3 at the 2,000 counts,
the 4 at the 4,000 counts it does not win the championship.
More widely accepted is the performance of those Fluke 87V & 28II with 4 updates at 6,000 counts.
But now days we do have even faster meters than that which will take the first prize when there is face to face comparisons.
The latest DEREE DE-208A at 6,700 counts comes also with 3 updates per second in theory, but it is even faster than that.
And I am correct about my findings due the written specification that is: nominal 3 updates/ second.
Naturally the ultimate winner up to date is the U1272A and similar which does 6 updates at 30,000 counts. :)
The Fluke 87V & 28II at the 20,000 counts range they can do just 2 updates per second.
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Although my IDM 305 was a good cheap end-of-line stock purchase on Ebay, these pictures clearly show why you should seriously consider other DMMs if you going to pay the full price for one of these.
Fuse accessibility....
ok the correct way to design a DMM, ie. make it easy to change a fuse.
(http://tinypixels.co.uk/test_equip/idm_305/agilent_u1272a.jpg)
ok now the wrong way; hide them under a board that you have to separate and then add some tiny screws.
(http://tinypixels.co.uk/test_equip/idm_305/fuse.jpg)
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There is even more than that .. :)
Before I start making reviews I have download and read many Application Notes from FLUKE,
which most of them are loaded with 90% advertising, but they do hide 10% of pure knowledge. ;)
I will not get in to probably boring technical details, but I will say that its not enough to just use HRC fuses
so one meter to be called as safe.
The PCB must be also comply in some technical standards about the layout around the HRC fuse contacts.
And also additional plastic shields can limit the blast and protect the PCB and parts of the meter, so to remain usable after the accident.
Personally I consider as immature the meters which are capable to withstand a blow by sacrificing the multimeter as device,
due burned PCB or near by components.
In the European union we have a fresh law against developing products'' disposable'' at the slightest fail.
http://www.ittsb.eu/forum/index.php?topic=63.0 (http://www.ittsb.eu/forum/index.php?topic=63.0)
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In the European union we have a fresh law against developing products'' disposable'' at the slightest fail.
http://www.ittsb.eu/forum/index.php?topic=63.0 (http://www.ittsb.eu/forum/index.php?topic=63.0)
This is quite an interesting topic in itself; You should re-post to "General Discussion" as I'm sure other people might like to comment and discuss.
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About such matters there is no need for additional comments and discussions, what is needed are true actions.
Some of those actions is going to be made by the addition of new legislation.
The reviewers will have to ban all those suspicious products from their presentations ( as I do ).
The consumers will have to stop buying them, no mater of how sweet their pricing looks like in the pages of ebay or elsewhere.
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I've just bought another one of these meters on Ebay for £50; I think I'm starting to get a multimeter addiction, is this how it starts? ;-)
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If you buy seven, and if you have blue eyes, there is a possibility to become even a reviewer. LOL
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Kiriakos, contact lenses............
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hahahahaaaa ;D
Nop .. only the real thing wins.
The other way to succeed is to have blue multimeters. ;)
http://www.nieaf-smitt.com/installation-portfolio/portable-test-measuring-equipment/multimeters/ni-305r-true-rms-multimeter/ (http://www.nieaf-smitt.com/installation-portfolio/portable-test-measuring-equipment/multimeters/ni-305r-true-rms-multimeter/)
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I've just bought another one of these meters on Ebay for £50; I think I'm starting to get a multimeter addiction, is this how it starts? ;-)
I've just bought yet another one from Ebay for £50; it came with a yellow protective rubber and a recent calibration certificate which was a nice surprise. The extra one should come in handy for my next hobby project!
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Classic! Once I've got through a few more tutorials and other bits there are a couple of ISO-TECH meters that have caught my eye for review....Fluke have also announced a "cheapy" that I'll try get hold of too.
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there are a couple of ISO-TECH meters that have caught my eye for review....Fluke have also announced a "cheapy" that I'll try get hold of too.
I very much look forward to watching those!
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Hello; I own a multimeter ISOTECH IDM 305, with 4 resistors burned. Voiçi their benchmarks: R36, RB1, R92, R93. Can you give me their values ?? , Thanks in advance for your help. Cdt ;)
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Hello; I own a multimeter ISOTECH IDM 305, with 4 resistors burned. Voiçi their benchmarks: R36, RB1, R92, R93. Can you give me their values ?? , Thanks in advance for your help. Cdt ;)
Hi, oh dear! - how did you do that? can you post a photo of the board indicating the damaged parts location? also what year is the PCB board?
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Good Evening; I seek the values of the following resistances, which are on the multimeter ISOTECH IDM 305: R36; RB1; R92; R93. Thank you for your help
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Good Evening; I seek the values of the following resistances, which are on the multimeter ISOTECH IDM 305: R36; RB1; R92; R93. Thank you for your help
Hi, I can't see any attached pictures? can you upload to the forum?
[edit]
You mentioned in your PM that you had attached some pictures, but there was nothing attached to your email.
Anyway, no problem; here is a circuit diagram which might help you if the circuit matches your particular meter.
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Hi, in-circuit I measured; -
R36 @ 23.9K
RB1 @ 14.9K
I took some pictures but RB1 was hard to read; but looks like it could be 153.
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Hello; I seek the scheme of programmable laboratory power supply RACAL DANA 9232 DP: someone could you help me ??? Thanks in advance