Author Topic: Why is BK Precision still in business? BK8500 programmable load OEM found  (Read 19114 times)

0 Members and 2 Guests are viewing this topic.

Offline Wartex

  • Frequent Contributor
  • **
  • Posts: 404
  • Country: ca
    • http://headsplosive.com
Hi everyone, talked to a large test gear distributor in Canada today, found the real OEM for BK's bench multimeters and programmable loads as well as other stuff. It's not "itech", it's maynuo. I played with the DC sourcemeter and it's awesome. They are coming out with an AC sourcemeter.


Looks familiar? http://maynuo.com/english/pro.asp?tid=26

Online EEVblog

  • Administrator
  • *****
  • Posts: 13605
  • Country: au
    • EEVblog
I was told by BK Precision directly that the 8500 electronic load was designed and manufactured by iTech, a subsidiarity company of the BK Precision group.
So I'm not sure what's going on here?

Dave.

Online EEVblog

  • Administrator
  • *****
  • Posts: 13605
  • Country: au
    • EEVblog
I notice that the display is different to the BK precision/Itech unit. Dual line instead of single.

Dave.

Offline T4P

  • Super Contributor
  • ***
  • Posts: 3706
  • Country: sg
    • T4P
I notice that the display is different to the BK precision/Itech unit. Dual line instead of single.

Dave.

That might require just a minor OEM change, but yeah who am i to argue ...
http://the4thpin.comeze.com <-- Rants and Reviews! sorry my english  :palm:

Offline Wartex

  • Frequent Contributor
  • **
  • Posts: 404
  • Country: ca
    • http://headsplosive.com
I was told by BK Precision directly that the 8500 electronic load was designed and manufactured by iTech, a subsidiarity company of the BK Precision group.
So I'm not sure what's going on here?

Dave.

I was told by BK directly that BK879 LCR was made from the scratch. It's a blatant lie as it's a stripped down Tonghui. Also whenever they say "subsidiary" it's usually an independent company that makes gear for 20 other companies. I have lost all respect for BK, they are nothing but a badgeneering shop. I'll shit bricks the day they grow a pair and respond to criticism and admit they design ZERO products.

Offline FenderBender

  • Super Contributor
  • ***
  • Posts: 1118
  • Country: us
    • The Solid State Workshop
Yeah I used to think "BK Precision. Good stuff right? Like a cheaper Tek/Fluke, right?" Wrong. There's nothing special about their products. They're not bad, just not unique...and how can you be when some overseas company is doing the engineering and production?

Only thing they might provide is customer service if you need it..

Offline olsenn

  • Frequent Contributor
  • **
  • Posts: 995
Nah, this isn't the same as the BK/Itech ones; the specs are different, the displays are different, and I tried out their software with my IT8511 and it doesn't communicate with it, meaning the PC interface is different as well. They just look similar... in fact it was probably the Maynuo that copied BK, as BK is the most popular/famous company of the bunch.

Offline T4P

  • Super Contributor
  • ***
  • Posts: 3706
  • Country: sg
    • T4P
Nah, this isn't the same as the BK/Itech ones; the specs are different, the displays are different, and I tried out their software with my IT8511 and it doesn't communicate with it, meaning the PC interface is different as well. They just look similar... in fact it was probably the Maynuo that copied BK, as BK is the most popular/famous company of the bunch.

And also a high probability "Itech" copied Maynuo and changed many things

Yeah I used to think "BK Precision. Good stuff right? Like a cheaper Tek/Fluke, right?" Wrong. There's nothing special about their products. They're not bad, just not unique...and how can you be when some overseas company is doing the engineering and production?

Only thing they might provide is customer service if you need it..
That's what they did with their scopes also ...
http://the4thpin.comeze.com <-- Rants and Reviews! sorry my english  :palm:

Offline Christe4nM

  • Supporter
  • ****
  • Posts: 169
  • Country: nl
Since I'm wondering what is going on here I took a moment to compare the specs of BK Precision's 8500 vs Maynuo's M9711. At first glance the Maynuo actually seems to have a bit better specs; at least greater accuracy than the BK.

Now I have no idea how to know whether to trust the specs stated by a manufacturer, nor how to now whether a Chinese manufacturer is only 'Chinese' (the common way we know their products...) or actually a high quality manufacturer. Yet since Manyuo's DC load is marketed as new, I don't think it to be odd that their specs are better; BK's one is around for quite a while now. I just wish we could see a teardown of the Maynuo to see the build & component quality.

There's very little information on the web about Maynuo, and so far I haven't been able to connect BK and Maynuo. Maybe the OP can shed a bit more light on this?

As far as look go I like Maynuo's load better, the light blue touch is kinda fresh ;-)

Maynuo M9700 specs
BK Precision 8500 Datasheet

Edit: Maynuo actually has a valid CE certificate. I know CE marking doesn't say anything, but at least we know it's not China Export. (This is of yet only for their PSU range though)
« Last Edit: August 15, 2012, 06:10:35 PM by Christe4nM »

Offline Christe4nM

  • Supporter
  • ****
  • Posts: 169
  • Country: nl
To add to the confusion:
This is the Maynuo with Atten brand added. Zooming in on the upperleft corner shows Maynuo's name next to the Atten brand logo.

Does this mean Atten just rebranded this instrument, or that it's Atten quality :-(

Online EEVblog

  • Administrator
  • *****
  • Posts: 13605
  • Country: au
    • EEVblog
Guys, I have asked BK Precision and they have responded and cleared this up.

To quote them:
Quote
To answer your question: Maynou was found by a former Itech engineer who left the company and took with him the technical documentation of the Itech line, which made it easy for him to copy many products in a very short time. As you may know this is a common practice in China. For the skeptics amongst your readers: Itech has been around since 2004 and this DC loads series was one of their first products. We started selling the 8500 shortly thereafter. Evidence of this can be found here : http://wayback.archive.org/web/*/http://itech.sh
Plug in the Maynuo URL and you can see that they have been around for only 2 years.


And there is more on how they add value to the Itech products, but I'll leave it up to BK to fill you in directly here. Just wanted to clear up the OEM confusion quickly.

Dave.

Offline FenderBender

  • Super Contributor
  • ***
  • Posts: 1118
  • Country: us
    • The Solid State Workshop
So much incest in this test equipment industry!

Offline Wartex

  • Frequent Contributor
  • **
  • Posts: 404
  • Country: ca
    • http://headsplosive.com
Guys, I have asked BK Precision and they have responded and cleared this up.

To quote them:
Quote
To answer your question: Maynou was found by a former Itech engineer who left the company and took with him the technical documentation of the Itech line, which made it easy for him to copy many products in a very short time. As you may know this is a common practice in China. For the skeptics amongst your readers: Itech has been around since 2004 and this DC loads series was one of their first products. We started selling the 8500 shortly thereafter. Evidence of this can be found here : http://wayback.archive.org/web/*/http://itech.sh
Plug in the Maynuo URL and you can see that they have been around for only 2 years.


And there is more on how they add value to the Itech products, but I'll leave it up to BK to fill you in directly here. Just wanted to clear up the OEM confusion quickly.

Dave.


"Joy at MCS" messaged me today, he sells the BK stuff and they told him the same thing. So the ODM is iTech, and BK is a rebrand and Maynuo is a redesign of the original iTech product.

PS: Any chance you can ask them where they copied the BK879 LCR from (honest answer this time hopefully)?

Offline Bored@Work

  • Super Contributor
  • ***
  • Posts: 3940
  • Country: 00
So the ODM is iTech, and BK is a rebrand

BK owns iTech (both BK and iTech say so). So I guess we can forgive them for putting a BK label on an iTech device.

As for the Maynuo story, I don't know if I should laugh or cry. Laugh, because an Asian company stealing technical documentation from another Asian company instead of a Western company. Cry, because yet another Asian company stealing ...
I delete PMs unread. If you have something to say, say it in public.
For all else: Profile->[Modify Profile]Buddies/Ignore List->Edit Ignore List

Offline LaurenceW

  • Regular Contributor
  • *
  • Posts: 219
  • Country: gb
    • It's Time, Jim, but not as we know it
This is an interesting thread for me, as i am in the market for an electronic load. it is for home/hobby use, so my budget is limited, and i cannot stretch to a "genuine" Itech or BK load. The Maynuo range had caught my eye, and they can be had on ebay (for the spec I want - >300V DC rated M9712B) for about GBP£470, landed.

The two products are indeed so incredibly similar, that I am prepared to believe (as BK appear to have confirmed) that the Maynuo is a pretty direct and simple-ish copy, albeit with a more detailed display. Maynuo must have had access to the original microcontroller source code, and recompiled it for a different display. The specs are very similar, so I am now left wondering whether the Maynuo does perform to the quoted spec, or they just copied the spec sheet, too!?

VERY little info about on Maynuo, but I did find this
Power Supply Comparison (Part 1)
. It seems to exist, and work (not an in-depth test, but prrof the device is out there)

I have looked at cheaper Beich and Array "brands" of electronic loads but I suspect these may be "slower" to react to load changes. Also, markedly poorer (if still not actually poor) accuracy quoted for these.

And yes, Maynuo loads appear in ATTEN variants, too. No doubt about that.

If I do land one (in final negotiations with the Financial Controller at the moment!), I will of course "do a Dave"  - Dahnt turnit on, taykit apairt! (sorry, Dave ;))

Oh, and I think Joy at MCS would like me to confirm her gender. Definitely a lady of the female persuasion.
If you don't measure, you don't get.


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf