I read in !emc-pstc that Helge Knudsen h.knud...@niros.com wrote (in
e84b3b17b051c048b2a7fff6f8b49ddd431...@mail2.daniro.dk) about 'SV:
Standards process' on Wed, 19 Nov 2003:
You may download primer on Standards in pdf format free from:
This is a multi-part message in MIME format.
Dave,
I agree the USB spec didn't take into account the more strict industrial
applications and immunity tests. We use the USB interface to communicate with
an
instrument that can be used in a light industrial environment. The interface
will not
Hello,
Has anyone had any experiance with this receiver
that they would be willing to share with me (on or
off the listserve?) Interested, also if you are using
any other EMI control S/W package to control this
guy. I am interested in it's price and it's advertised
compliant cispr 16
Gents,
You might be happy to know, that according to the
USB 1.1 2.0 Specification standard,
http://www.usb.org/developers/docs/
the defined shield coverage for 1.1 2.0 USB cable is:
a minimum of a 65% tinned copper braided + aluminum
metalized polyester inner shield.
I can't help asking
My 1996 release of IEC 1000-4-6 has an informative Appendix B that states the
start frequency is the speed of light divided by the sum of the cable length
and EUT size. If people are not doing this for short cable runs, they are
over-testing at low frequencies by orders of magnitude.
From:
The EM clamp can be used but the preferred method would be using a CDN or
direct injection to the screen. I could not find the reference to start the
testing at higher than 150kHz within 61000-4-6. [Perhaps I missed that bit?]
I am surprised that the CDN for the screen did not work as I have
Group,
Before Richard or Jim has to intervene, I think we should stop this thread of
bad-mouthing Hipotronics and Haefely. We must inform while resisting to vent.
To answer the original question, as far as I know Hipotronics is the service
repair organization for Haefely in the US. If anyone
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Ton,
Yes, the USB cable/interface should be tested for conducted immunity.
USB cables are shielded (screened) so I believe the Direct Coupling method
would be the method to use.
Brian Kunde
LECO
Compliance Testing Center
Reply
All,
I have had the same problem in getting my EFT_Burst tester repaired by them,
and found their service to be unacceptable also.
After submitting my tester to them, 3k dollars and one and half month later
, I finally got back the tester ( from Switzerland, HQ for them ).
Their (Hipotronics)
Hi Group,
You may download primer on Standards in pdf format free from:
http://www.cenelec.org/Cenelec/CENELEC+in+action/News+Centre/Primer+on+stand
ards/Default.htm
Best regards
Helge Knudsen
Test Approval
Niros Telecommunication
Hirsemarken 5
DK-3520 Farum
Tel +45 44 34 22 51
Fax +45 44 99
This is a multi-part message in MIME format.
All,
The 9th annual Northeast Product Safety Society Vendor’s Night will be
held tonight, November 19th, at the Marlborough Holiday Inn from 5 to
9:30 PM. You can visit as many as 50 booths featuring the latest in
safety and EMC compliance equipment
Hi Brent!
We also have a PC6-288.1 Surge Tester (great machine!), and have had similar
service issues with Hipotronics. I may be able to help. Give me a call.
Jim Ericson
Acme Testing Company
Acme WA
(360) 595-2785
j...@acmetesting.com
Brent DeWitt wrote:
I have a Haefely PC6-288.1 surge
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