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Author Topic: ATTEN AT-90DH advanced soldering station, all their secrets in one picture.  (Read 9086 times)

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Offline Kiriakos GR

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ATTEN AT-90DH soldering station & significant electromagnetic design issue
« Reply #10 on: December 31, 2013, 12:33:32 PM »
We are not living in a perfect world, therefore when something gets spotted as issue in a new product it should be mentioned publically by a note.

In this case the note is regarding the AT90DH in which I have verified an issue caused by the transformer inside.

Title: The transformer inside cause’s electromagnetic effect when the soldering station is placed at the top of a metallic cabinet.

Side effects: Sound of hum which deviates according the electrical load of the transformer.
Work around: Avoid placing the soldering station over metallic cabinets made by iron.


I did inform ATTEN about this issue since November 25 with a video, in the beginning they took this subject very lightly, after some extra pressure they started mentioning that they are investigating it, after of three weeks of fake promises that I would be contacted back for getting a replacement, they came back to me today by saying that this issue possibly it will be resolved in the future.

This problem made me to further investigate of what solutions are used by others far more premium manufacturers (with even more experience in this field).
And I discovered pictures which are clearly demonstrating one far wiser transformer placement in their soldering stations (that came also with a plastic housing), or alternatively they use a toroid transformer.

The technical issue of the AT90DH it could possibly get solved if the inner transformer were shielded by a metallic cage,  by the same way that is shielded similar transformers’ designed to coexist close to other parts which they are prone to electromagnetic effect.

Up to date I have not verify that something like that is possible as design correction, this transformer is mounted on a plastic cage at the bottom of the soldering station base, and the dimensions of it were designed to host the transformer as is.

This all story it did made feel Mad because it did damaged my own Feng shui of how my working bench should be organized at it best.

Regarding ATTEN, other than getting back promptly to redesign this AT90DH, they will have their chance to win back the positive impressions, only when they will prove them self’s as worthy. 
Regarding the feeling of hard critique, I am tremendously hard to my own self first.

As about me, I did come up with an alternative Feng shui idea, which does not turn upside-down completely my own original planning.
Even so it is an reconciliation which I have to live with.

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Offline giorgos

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First of all ,I would like to send ,my best wishes for the new year, to all  members of ITTSB forum.
Regarding the topic, I think that a solution could be, by installing rubber/plastic feet like these
 http://www.takachi-enclosure.com/data/c1213/c_en_p225.pdf  in the bottom of soldering station.
They could ensure primarly a space between soldering station and any metal surface, and secondly the rubber matterial of them absorbs any vibrations caused by electromagnetic effect.

Offline Kiriakos GR

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Unfortunatly for ATTEN, the problem is still there even if the station elevates 15mm from the below metalic iron based surface.
This plastic orange case in which I store inside the Hot-Air station nonsless it is  30mm, which helps bypassing the problem.

By the way .. An very happy 2014 to you too mate :) 
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londrim

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Hi Kiriakos,

Nice soldering station. i hope it is good quality (with exception the problems you mention) because i ordered one for my self too.   :D

Im having a hard time to find tips. So i will try to order a weller tips (LT series) and give it a try as i read that it is compatible.

If you test the tips you ordered from Ali Express please let me know about the quality.

Thanks and happy new year.

Offline Kiriakos GR

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My luck with Ali Express was not good,  the seller send my order with tips and sponges that were totally wrong.
I got Hakko tips instead which I did made them a gift to a friend.

The actual compatibility between the Weller tips is something than even me I look forward to discover too.
Regarding ATTEN tips in Greece there is availability, but I have erase from my head the name of the Greek re-seller, because he charges for the station double price than Germany.

About the station, I have use it for 30 hours up to date,  in Greece we use to say that if something does not collapse in 24 hours then it is healthy.   ;D
« Last Edit: January 23, 2018, 08:49:05 PM by Kiriakos GR »
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londrim

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Hi Kiriakos,

Finally i got this station also and i did similar modification you did as well.

Atten Europe replied to my email and informed that tips cost about 5 Euros each. There are also just a couple of tips in ebw.gr website.

Anyway i'm happy that the Station is very quick on heating up and removing elements. However the tip that accompanies the station is useless at most cases.

Offline giorgos

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I hope you to enjoy your new tool, and also to find it useful to your job.
It would be interesting to check your station for electromagnetic issue that Kyriakos mentioned, to see if the failure is only at unit that Kyriakos owns.
If your station has the same problem, then we will be rather sure that is a general design failure.


Offline Kiriakos GR

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However the tip that accompanies the station is useless at most cases.

I did found the default tip as useful for SMD, and even small parts (soldered over flexible ribbon).
Therefore in my book, it is useful for micro surgery.   :)

For soldering wires and general use, I am still using my 20 Years old station.

I did not buy this ATTEN tool by the thought that it will replace my other four soldering tools.
 

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Offline Kiriakos GR

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Offline Kiriakos GR

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Since today I can verify 100% compatibility with soldering tips made by Weller.

 
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