Re: Performance Criterion B in EN 55024

2007-05-10 Thread emc-p...@ieee.org
In message , dated Thu, 10 May 2007, jim.hulb...@pb.com writes: >My question is, what are the limits of an "operator response" to return >to normal operation? Is there any futher guidance or explanation as to >what is acceptable operator response? I don't think so, beyond the general idea tha

RE: Performance Criterion B in EN 55024

2007-05-10 Thread emc-p...@ieee.org
Jim, we've tossed the "operator response" thing around here for many years. We've tried to keep it as simple as possible. For instance, if a printer stops and recognizes an image quality fault as a result of an ESD or EFT test, and then the printer prompts the operator to discard the faulted print

RE: Performance Criterion B in EN 55024

2007-05-10 Thread emc-p...@ieee.org
Criterion B is "Self-Recoverable" without user intervention which means it must return to normal operation on its own after the test. BUT during the test, your printer is allowed to degrade in performance such as print incorrectly or stop printing or reset itself. After the test, the printer must

Re: Performance Criterion B in EN 55024

2007-05-10 Thread emc-p...@ieee.org
Jim, my thoughts an issue like this is not to be concerned with trying to interpret what the standard means but what will the customer put up with. The customer after all is the ultimate "standard" that must be complied with. If a customer has to do it once a year, it is not a big deal but 30 times

RE: Performance Criterion

2003-04-30 Thread Ralph McDiarmid
From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: April 25, 2003 11:26 PM To: emc-p...@majordomo.ieee.org Subject: Re: Performance Criterion I read in !emc-pstc that Ralph McDiarmid wrote (in <67C475A5ECE7D4118AEC0002B325CAB602D2F9E0@BCMAIL1>) about 'Performance Criterion' on Fri, 2

RE: Performance Criterion

2003-04-30 Thread Gordon,Ian
Ralph et al A lawyer could have a field day with this sort of thing (at considerable expense!). The standards we all use from day to day are merely methods of demonstrating compliance with the law of the land i.e. (in Britain) the statutory instruments, passed by Parliament, which implement the EM

Re: Performance Criterion

2003-04-29 Thread John Woodgate
I read in !emc-pstc that Ralph McDiarmid wrote (in <67C475A5ECE7D4118AEC0002B325CAB602D2F9F1@BCMAIL1>) about 'Performance Criterion' on Mon, 28 Apr 2003: >I suggest each Performance Criterion might be re-written as follows: > >"Criterion A - No loss of function or performance allowed during or af

RE: Performance Criterion

2003-04-28 Thread Pettit, Ghery
Ralph, You'll never make it on a standards committee. You don't use enough words to say what you mean. ;-) Ghery Pettit From: Ralph McDiarmid [mailto:ralph.mcdiar...@xantrex.com] Sent: Monday, April 28, 2003 2:23 PM To: emc-p...@majordomo.ieee.org Subject: RE: Performance Cri

RE: Performance Criterion

2003-04-28 Thread Frazee, Douglas (Douglas)
hery [mailto:ghery.pet...@intel.com] Sent: Thursday, April 24, 2003 4:51 PM To: 'Frazee, Douglas (Douglas)'; Pettit, Ghery; 'Ralph McDiarmid'; 'EMC-PSTC' Subject: RE: Performance Criterion I'm going to contest this, but only slightly. CISPR 24 defines Performance

RE: Performance Criterion

2003-04-28 Thread Wagner, John P (John)
0234-2726 Phone/Fax: (303) 538-4241 johnwag...@avaya.com From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: Friday, April 25, 2003 12:11 AM To: emc-p...@majordomo.ieee.org Subject: Re: Performance Criterion I read in !emc-pstc that Pettit, Ghery wrote (in ) about 'Performance

Re: Performance Criterion

2003-04-28 Thread John Woodgate
I read in !emc-pstc that Ralph McDiarmid wrote (in <67C475A5ECE7D4118AEC0002B325CAB602D2F9E0@BCMAIL1>) about 'Performance Criterion' on Fri, 25 Apr 2003: >They might just as well say, "It is the manufacturer's responsibility for >defining an acceptable level of performance and functionality for

RE: Performance Criterion

2003-04-25 Thread Ralph McDiarmid
r user documentation which accompanies the equipment". (no more Criteria A,B or C) Ralph McDiarmid, AScT Compliance Engineering Group Xantrex Technology Inc. From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: April 25, 2003 2:19 PM To: emc-p...@majordomo.ieee.org Subject: Re: Performa

Re: Performance Criterion

2003-04-25 Thread John Woodgate
I read in !emc-pstc that Pettit, Ghery wrote (in ) about 'Performance Criterion' on Fri, 25 Apr 2003: > Sure glad these standards are crystal clear, aren't you? > The standard is crystal-clear; it's real life that's grey and fuzzy. (;-) -- Regards, John Woodgate, OOO - Own Opinions Only. ht

Re: Performance Criterion

2003-04-25 Thread John Woodgate
I read in !emc-pstc that Ralph McDiarmid wrote (in <67C475A5ECE7D4118AEC0002B325CAB602D2F9D2@BCMAIL1>) about 'Performance Criterion' on Fri, 25 Apr 2003: >Why would these standards call up specific levels of disturbances, voltage, >frequency and so on, and then leave the performance cri

RE: Performance Criterion

2003-04-25 Thread Grasso, Charles
422 2622 fax: (604) 420 1591 From: Frazee, Douglas (Douglas) [mailto:dfra...@lucent.com] Sent: April 25, 2003 9:43 AM To: 'Pettit, Ghery'; Frazee, Douglas (Douglas); 'Ralph McDiarmid'; 'EMC-PSTC' Subject: RE: Performance Criterion Ghery, I was hoping my response

RE: Performance Criterion

2003-04-25 Thread Pettit, Ghery
Douglas (Douglas) [mailto:dfra...@lucent.com] Sent: Friday, April 25, 2003 9:43 AM To: 'Pettit, Ghery'; Frazee, Douglas (Douglas); 'Ralph McDiarmid'; 'EMC-PSTC' Subject: RE: Performance Criterion Ghery, I was hoping my response would get a discussion going and am pl

RE: Performance Criterion

2003-04-25 Thread Ralph McDiarmid
s) [mailto:dfra...@lucent.com] Sent: April 25, 2003 9:43 AM To: 'Pettit, Ghery'; Frazee, Douglas (Douglas); 'Ralph McDiarmid'; 'EMC-PSTC' Subject: RE: Performance Criterion Ghery, I was hoping my response would get a discussion going and am pleased that you respon

Re: Performance Criterion

2003-04-25 Thread John Woodgate
I read in !emc-pstc that Wagner, John P (John) wrote (in <4203D61676D0AE468AA5CEA90A891C130288F00D@cof110avexu4.global. avaya.com>) about 'Performance Criterion' on Fri, 25 Apr 2003: >Nonsense! Both the basic standard and the CISPR standard have words to the >effect that performance degradation

RE: Performance Criterion

2003-04-25 Thread Pettit, Ghery
Ralph, If a product self-recovers without operator intervention, then you can say it meets criterion B. The manufacturer has the ability within these criteria to define the acceptable loss of function, as well. If 1 minute is an acceptable time for the self-recovery, the product passes. If o

Re: Performance Criterion

2003-04-25 Thread John Woodgate
I read in !emc-pstc that Pettit, Ghery wrote (in ) about 'Performance Criterion' on Thu, 24 Apr 2003: >During the test, degradation of performance is allowed.  However, no change >of operating state or stored data is allowed to persist after the test. > Yes, well, as is unfortunately f

RE: Performance Criterion

2003-04-24 Thread Pettit, Ghery
alph McDiarmid'; 'EMC-PSTC' Subject: RE: Performance Criterion Ralph, Ghery's response is somewhat correct, however I'd like to add several points. The definition of criterion B in 61000-6-2 allows degradation during the immunity test. It also states that, "N

RE: Performance Criterion

2003-04-24 Thread Frazee, Douglas (Douglas)
[mailto:ghery.pet...@intel.com] Sent: Thursday, April 24, 2003 11:13 AM To: 'Ralph McDiarmid'; 'EMC-PSTC' Subject: RE: Performance Criterion Ralph, If a product self-recovers without operator intervention, then you can say it meets criterion B. The manufacturer has the

Re: Performance Criterion

2003-04-24 Thread John Woodgate
I read in !emc-pstc that Ralph McDiarmid wrote (in <67C475A5ECE7D4118AEC0002B325CAB602D2F9C0@BCMAIL1>) about 'Performance Criterion' on Wed, 23 Apr 2003: >I have a question about Performance Criterion B as described in EN61000-6-2. > >Scenario: >A product temporary looses communication over a ne

Re: performance criterion A

2001-09-19 Thread John Woodgate
I read in !emc-pstc that Colgan, Chris wrote (in ) about 'performance criterion A', on Tue, 18 Sep 2001: >According to EN50082-1, no degradation of performance below a performance >level specified by the manufacturer is allowed whereas EN55020 gives a clear >cut wanted/unwanted signal to noise r

Re: performance criterion A

2001-09-19 Thread John Woodgate
I read in !emc-pstc that CE-test - Ing. Gert Gremmen - ce-marking and more... wrote (in ) about 'performance criterion A', on Tue, 18 Sep 2001: >But, for professional audio a specific product standard set >for emission and immunity exists, EN 55103-1/2. The immunity part, EN 55103-2, does call

RE: performance criterion A

2001-09-18 Thread CE-test - Ing. Gert Gremmen - ce-marking and more...
Yes Chris, this is exactly what the criterium A is about. The manufacturer should specify the performance of the product during exposure to radiated (or conducted) RF-interference. The device should of course not loose 100 % of it's performance though. This way, ideally, customers are able to cho