Re: Equipment Calibration
Ed, I would agree with you and with the other people who have responded to your letter - I don't see any issues with not calibrating supplies and generators as long as you are using a calibrated meter/scope/measuring device/whatever to monitor the uncalibrated instrument. I currently work for a small design and manufacturing company in Portland, Oregon and prior to that I worked for a third-party regulatory agency, and in both cases it was considered acceptable to use uncalibrated sources as long as they were monitored in testing by a calibrated meter of some type and the meters used were recorded in the datasheet package along with calibration dates, etc. At the regulatory agency there were sometimes calibrations of things that didn't really seem to need calibration, like yearly calibrations of 20-lb weights for pull tests, but I was told by one of the lab staff that once they got a scale and had that calibrated yearly, they weren't required to submit the weights themselves for calibration. This is almost exactly the scenario you are describing . . . . use a calibrated measuring device during a particular test to measure a stimulus and the stimulus itself shouldn't have to be separately calibrated. I don't have any experience with ISO 9000 procedures, so I guess it might be possible that a particular company's procedure insists on the calibration of every piece of equipment (though it seems pretty unlikely). I know I've never heard of that being a general ISO requirement that everyone has to follow. Has the Metrology Department declared this requirement off the cuff, or have they been able to point to a specific clause or clauses in the company policy manual or ISO 9000 handbook or standard procedures that says you MUST calibrate all sources? -Camille Portland, Oregon Price, Ed ed.pr...@cubic.com wrote: In some ways, I have the luxury of having a Metrology Department that maintains the periodic calibration on all of my test equipment. OTOH, as a customer of this Metrology Department's product, I would like to have some control over my overhead costs. And my latest bright idea has me getting stomped by the gurus of the status quo. I need to get smarter about how a calibration system works, and how flexible it can be. My lab has about 500 pieces of capital equipment, and the way I see it, all my equipment falls into one of two categories. The first category consists of those instruments which are used to measure the parameters of our company's products, and determine if the performance of those products falls within a range of acceptable tolerance. Data from these measurements is often contractually reported to our customers. Every equipment within this category needs to be maintained on a program of periodic, traceable calibration. But then there's the second category; which consists of support and stimulus equipment. Items here are old analog signal generators, function generators, amplifiers, pulse generators, sweepers and power supplies. To me, none of this equipment needs ANY periodic calibration. I base this on practical usage. Who can accurately read a power supply mechanical 80-amp ammeter that has a 1.5 long scale? Who can set a function generator frequency control that covers 2 decades, logarithmically, in 270 degrees of rotation? If I need to apply a 100 kHz signal in bursts of 2 milliseconds at a 1 Hz rate, I'll use a calibrated, traceable oscilloscope to set the uncalibrated generator to exactly what I need. The same for that power supply; if I need to know the current to 2% or better, I'll use a calibrated resistor and a calibrated DMM. And I couldn't care less about the gain of an RF power amplifier, as long as it pumps out enough power to! create the field I need. Now, I'm not trying to justify the use of distorted, unstable or junky equipment. I'm just trying to spend my calibration dollars the most efficient way. And the way I see it, about 1/4 of my equipment fits my definition of not needing periodic calibration because I can monitor the results with calibrated equipment. So I proposed that these items be tagged with some kind of uncalibrated or user verified or no calibration required label. The gurus of Metrology say this can't be done, our ISO9000 Quality System will not allow this. I can't understand how a customer-oriented quality system can't be crafted to meet the needs of all of the customers of that system. And I suppose I'm felling a bit squeezed, what with my customers expecting me to use COTS equipment to function in military environments. I have to get more out of what I have, and the old military concept of everything in sight is on periodic calibration has to yield to current reality. So, am I getting shoveled upon regarding the impossibility of having a category of officially non-calibrated equipment alongside my calibrated equipment? How have you dealt with calibration program costs? Regards, Ed Ed Price ed.pr...@cubic.com
Re: Equipment Calibration
Intereseting, I think the ISO and in particular the lab guides indicate simply that if equipment doesn't need calibration it is marked as such. The other stuff obviously must have a cal sticker on it. There are all kinds of lab supplies lying around just to power products during test etc that don't require a calibrations so it seems unlikely that it would be prohibited. Just changed companies so I don't have access to my old documents just yet - so shooting from memory so double check. Gary From: Price, Ed ed.pr...@cubic.com Reply-To: Price, Ed ed.pr...@cubic.com To: 'emc-p...@ieee.org' emc-p...@ieee.org Subject: Equipment Calibration Date: Fri, 7 Nov 2003 13:58:35 -0800 In some ways, I have the luxury of having a Metrology Department that maintains the periodic calibration on all of my test equipment. OTOH, as a customer of this Metrology Department's product, I would like to have some control over my overhead costs. And my latest bright idea has me getting stomped by the gurus of the status quo. I need to get smarter about how a calibration system works, and how flexible it can be. My lab has about 500 pieces of capital equipment, and the way I see it, all my equipment falls into one of two categories. The first category consists of those instruments which are used to measure the parameters of our company's products, and determine if the performance of those products falls within a range of acceptable tolerance. Data from these measurements is often contractually reported to our customers. Every equipment within this category needs to be maintained on a program of periodic, traceable calibration. But then there's the second category; which consists of support and stimulus equipment. Items here are old analog signal generators, function generators, amplifiers, pulse generators, sweepers and power supplies. To me, none of this equipment needs ANY periodic calibration. I base this on practical usage. Who can accurately read a power supply mechanical 80-amp ammeter that has a 1.5 long scale? Who can set a function generator frequency control that covers 2 decades, logarithmically, in 270 degrees of rotation? If I need to apply a 100 kHz signal in bursts of 2 milliseconds at a 1 Hz rate, I'll use a calibrated, traceable oscilloscope to set the uncalibrated generator to exactly what I need. The same for that power supply; if I need to know the current to 2% or better, I'll use a calibrated resistor and a calibrated DMM. And I couldn't care less about the gain of an RF power amplifier, as long as it pumps out enough power to create the field I need. Now, I'm not trying to justify the use of distorted, unstable or junky equipment. I'm just trying to spend my calibration dollars the most efficient way. And the way I see it, about 1/4 of my equipment fits my definition of not needing periodic calibration because I can monitor the results with calibrated equipment. So I proposed that these items be tagged with some kind of uncalibrated or user verified or no calibration required label. The gurus of Metrology say this can't be done, our ISO9000 Quality System will not allow this. I can't understand how a customer-oriented quality system can't be crafted to meet the needs of all of the customers of that system. And I suppose I'm felling a bit squeezed, what with my customers expecting me to use COTS equipment to function in military environments. I have to get more out of what I have, and the old military concept of everything in sight is on periodic calibration has to yield to current reality. So, am I getting shoveled upon regarding the impossibility of having a category of officially non-calibrated equipment alongside my calibrated equipment? How have you dealt with calibration program costs? Regards, Ed Ed Price ed.pr...@cubic.com WB6WSN NARTE Certified EMC Engineer Technician Electromagnetic Compatibility Lab Cubic Defense Applications San Diego, CA USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Is Our Specialty _ Concerned that messages may bounce because your Hotmail account is over limit? Get Hotmail Extra Storage! http://join.msn.com/?PAGE=features/es This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: opinions, please
Ken Dave, If you recall, back when CE marking first became mandatory for EMC and then for the LVD, there was a lot of confusion as to what products should be marked. there were a wide range of inappropriately marked products on the market. I even saw a simple terminal block CE marked for EMC (imagine, a terminal block on an OATS). I think that time, many companies thought of CE as a marketing advantage and attempted to mark everything possible. Be that as it may, it is still a component if it does not have intrinsic function. Another way of saying this, is it must always be incorporated into larger equipment to be put into service. Regards, -doug From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: Friday, November 07, 2003 2:26 PM To: POWELL, DOUG; 'drcuthb...@micron.com'; emc-p...@majordomo.ieee.org Subject: Re: opinions, please I agree with Mr. Powell's conclusion, but I don't follow his logic. I have a USB solid state hard drive that has a CE mark. It is memory with a standard interface. It is totally useless by itself, it derives power from its host. The rationale must lie somewhere else. From: POWELL, DOUG doug.pow...@aei.com Reply-To: POWELL, DOUG doug.pow...@aei.com Date: Fri, 7 Nov 2003 12:35:17 -0700 To: 'drcuthb...@micron.com' drcuthb...@micron.com, emc-p...@majordomo.ieee.org Subject: RE: opinions, please Dave, I would call this a component. The key here is to decide if it has intrinsic function (i.e. does it have a useful propose when used alone?). If not, then it is a component. Regards, -doug - Douglas E. Powell Corporate Compliance Dept. Advanced Energy Industries, Inc. Fort Collins, CO 80525 USA -Original Message- From: drcuthb...@micron.com [mailto:drcuthb...@micron.com] Sent: Friday, November 07, 2003 10:37 AM To: emc-p...@majordomo.ieee.org Subject: opinions, please I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology ___ This message, including any attachments, may contain information that is confidential and proprietary information of Advanced Energy Industries, Inc. The dissemination, distribution, use or copying of this message or any of its attachments is strictly prohibited without the express written consent of Advanced Energy Industries, Inc. This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: opinions, please -Is it a component or an apparatus?
Greetings All, There is a document called: GUIDELINES ON THE APPLICATION OF COUNCIL DIRECTIVE 89/336/EEC OF 3 MAY 1989 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO ELECTROMAGNETIC COMPATIBILITY (DIRECTIVE 89/336/EEC AMENDED BY DIRECTIVES 91/263/EEC, 92/31/EEC, 93/68/EEC, 93/97/EEC) It does provide guidance on what is an 'apparatus' and 'component'. A link also to the guide is: http://eur pa.eu.int/comm/enterprise/electr_equipment/emc/guides/index.htm Scroll to and click on: Chapter 6- Application of the Directive to components, finished products, systems and installations. Regards, Richard = Richard Georgerian Compliance Engineer Carrier Access Corporation 5395 Pearl Parkway Boulder, CO 80301 USA Tele: 303-218-5748 Fax: 303-218-5503 mailto:rgeorger...@carrieraccess.com
Re: opinions, please
Hi Dave, I recall seeing a definition of component some years ago in reference to the EMC Directive, along the lines of being available for sale individually AND having an intrinsic function for the end user, in which case this would be considered a component. Best regards, Dave Wilson drcuthb...@micron.com wrote: I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All! emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc _ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree
Equipment Calibration
In some ways, I have the luxury of having a Metrology Department that maintains the periodic calibration on all of my test equipment. OTOH, as a customer of this Metrology Department's product, I would like to have some control over my overhead costs. And my latest bright idea has me getting stomped by the gurus of the status quo. I need to get smarter about how a calibration system works, and how flexible it can be. My lab has about 500 pieces of capital equipment, and the way I see it, all my equipment falls into one of two categories. The first category consists of those instruments which are used to measure the parameters of our company's products, and determine if the performance of those products falls within a range of acceptable tolerance. Data from these measurements is often contractually reported to our customers. Every equipment within this category needs to be maintained on a program of periodic, traceable calibration. But then there's the second category; which consists of support and stimulus equipment. Items here are old analog signal generators, function generators, amplifiers, pulse generators, sweepers and power supplies. To me, none of this equipment needs ANY periodic calibration. I base this on practical usage. Who can accurately read a power supply mechanical 80-amp ammeter that has a 1.5 long scale? Who can set a function generator frequency control that covers 2 decades, logarithmically, in 270 degrees of rotation? If I need to apply a 100 kHz signal in bursts of 2 milliseconds at a 1 Hz rate, I'll use a calibrated, traceable oscilloscope to set the uncalibrated generator to exactly what I need. The same for that power supply; if I need to know the current to 2% or better, I'll use a calibrated resistor and a calibrated DMM. And I couldn't care less about the gain of an RF power amplifier, as long as it pumps out enough power to create the field I need. Now, I'm not trying to justify the use of distorted, unstable or junky equipment. I'm just trying to spend my calibration dollars the most efficient way. And the way I see it, about 1/4 of my equipment fits my definition of not needing periodic calibration because I can monitor the results with calibrated equipment. So I proposed that these items be tagged with some kind of uncalibrated or user verified or no calibration required label. The gurus of Metrology say this can't be done, our ISO9000 Quality System will not allow this. I can't understand how a customer-oriented quality system can't be crafted to meet the needs of all of the customers of that system. And I suppose I'm felling a bit squeezed, what with my customers expecting me to use COTS equipment to function in military environments. I have to get more out of what I have, and the old military concept of everything in sight is on periodic calibration has to yield to current reality. So, am I getting shoveled upon regarding the impossibility of having a category of officially non-calibrated equipment alongside my calibrated equipment? How have you dealt with calibration program costs? Regards, Ed Ed Price ed.pr...@cubic.com WB6WSN NARTE Certified EMC Engineer Technician Electromagnetic Compatibility Lab Cubic Defense Applications San Diego, CA USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Is Our Specialty
Re: opinions, please
I agree with Mr. Powell's conclusion, but I don't follow his logic. I have a USB solid state hard drive that has a CE mark. It is memory with a standard interface. It is totally useless by itself, it derives power from its host. The rationale must lie somewhere else. From: POWELL, DOUG doug.pow...@aei.com Reply-To: POWELL, DOUG doug.pow...@aei.com Date: Fri, 7 Nov 2003 12:35:17 -0700 To: 'drcuthb...@micron.com' drcuthb...@micron.com, emc-p...@majordomo.ieee.org Subject: RE: opinions, please Dave, I would call this a component. The key here is to decide if it has intrinsic function (i.e. does it have a useful propose when used alone?). If not, then it is a component. Regards, -doug - Douglas E. Powell Corporate Compliance Dept. Advanced Energy Industries, Inc. Fort Collins, CO 80525 USA -Original Message- From: drcuthb...@micron.com [mailto:drcuthb...@micron.com] Sent: Friday, November 07, 2003 10:37 AM To: emc-p...@majordomo.ieee.org Subject: opinions, please I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology ___ This message, including any attachments, may contain information that is confidential and proprietary information of Advanced Energy Industries, Inc. The dissemination, distribution, use or copying of this message or any of its attachments is strictly prohibited without the express written consent of Advanced Energy Industries, Inc. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: opinions, please
Dave, If this type of component is placed on the market for distribution and/or use as a single commercial unit and is commonly available to the general public, the CE mark is applicable. John Radomski Schneider Electric drcuthb...@micron.com Sent by: To: emc-p...@majordomo.ieee.org owner-emc-pstc@majordocc: mo.ieee.org Subject: opinions, please 11/07/2003 12:37 PM Please respond to drcuthbert I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: opinions, please
Dave, I would call this a component. The key here is to decide if it has intrinsic function (i.e. does it have a useful propose when used alone?). If not, then it is a component. Regards, -doug Douglas E. Powell Corporate Compliance Dept. Advanced Energy Industries, Inc. Fort Collins, CO 80525 USA From: drcuthb...@micron.com [mailto:drcuthb...@micron.com] Sent: Friday, November 07, 2003 10:37 AM To: emc-p...@majordomo.ieee.org Subject: opinions, please I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology ___ This message, including any attachments, may contain information that is confidential and proprietary information of Advanced Energy Industries, Inc. The dissemination, distribution, use or copying of this message or any of its attachments is strictly prohibited without the express written consent of Advanced Energy Industries, Inc. This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: opinions, please
Interesting question..here's my opinion. I assume you are concerned only with the EMC Directive. The EMCD guidelines document http://europa.eu.int/comm/ente prise/electr_equipment/emc/guides/index.htm has detailed information on application of the EMCD to components. Memory modules are not specifically used as an example and seem to fall somewhat in a gray area. Certainly if the modules were being sold only as an OEM product, CE marking is not required. If the are being directly sold to the end user, then I believe the flowchart decision as to whether the EMCD applies or not depends on whether the component performs a direct function. Here, I would rationalize that PC plug-in products such as modems, sound cards, video cards etc. perform direct functions; the DRAM module does not, it is strictly a component that is required for the PC to operate. Thus application of the EMC Directive is not mandatory even if marketed directly to the end user. However, if your firm feels that CE-marking provides product benefits such as enhanced marketability, you will be able to optionally test, declare compliance and CE-Mark to the EMCD using EN55022/55024. Douglas G. Frazee Regulatory Compliance Manager Lucent Technologies PSAX Division dfra...@lucent.com -Original Message- From: drcuthb...@micron.com [mailto:drcuthb...@micron.com] Sent: Friday, November 07, 2003 12:37 PM To: emc-p...@majordomo.ieee.org Subject:opinions, please I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: opinions, please
drcuthb...@micron.com wrote: I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? As an engineer a DIMM is definitely a component. My mother, the computer user, would call it an apparatus. So the answer depends on how your ox is gourd. Fred Townsend I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
FW: EMC Tech
I all, I received a phone call today about the following opening. If anyone is interested please contact Bruce Kipperman at b...@ntscorp.com. Best Regards, Josh EMC Test Technicians NTS is looking to expand our staff of EMC Test Technicians to work with our engineering lead at one of our client onsite Labs. Candidates will be providing EMC testing for CISPR 22/24 and FCC part 15 requirements in conjunction with established lab staff. Responsibilities will include adhering to the testing schedule, working with other test technicians to meet testing goals. EMC testing knowledge in radiated emissions, CISPR, requirements, use of spectrum analyzers, O-scopes, multimeters and other routine test equipment required. UNIX experience helpful. Candidates must have proven experience as an EMC test technician. Required Product Knowledge of Printers, Fax Machines, Scanners is a plus. NTS prides itself on the Quality and Integrity of its employees, all candidates will be screened for drug use as well as a full background check. Candidates LOCAL to San Diego, California given first preference Bruce S Kipperman Technical Business Manager, Staffing Division Engineering Design Recruitment NTS National Technical Systems mailto:b...@ntscorp.com b...@ntscorp.com Office 888-964-1117 Ex 1320 Fax 603-898-3511 www.ntscorp.com NTS Provides top engineering, design and IT professionals who make immediate contributions to the success of our clients.
RE: opinions, please
Dave, I would classify them as a component. I also looked at a few lying around the lab here and none of them have a CE mark. Josh From: John Lach [mailto:john.l...@carlingtech.com] Sent: Friday, November 07, 2003 10:32 AM To: drcuthbert; emc-pstc Subject: RE: opinions, please RE: opinions, please 11/7/03 IMO it is component as it cannot work as a standalone device. I'll have to check some of my memory modules when I get home tonite. I have a bunch laying around from various builds. John drcuthbert wrote: I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc John Lach Manager Standards and Test john.l...@carlingtech.com Carling Technologies 60 Johnson Ave. Plainville, CT 06062 860-793-7167 www.carlingtech.com
RE: opinions, please
RE: opinions, please 11/7/03 IMO it is component as it cannot work as a standalone device. I'll have to check some of my memory modules when I get home tonite. I have a bunch laying around from various builds. John drcuthbert wrote: I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc John Lach Manager Standards and Test john.l...@carlingtech.com Carling Technologies 60 Johnson Ave. Plainville, CT 06062 860-793-7167 www.carlingtech.com
Re: opinions, please
As long as your asking for opinions. I don't have the definitions in front of me for fine slicing but its a gob of silicon - just like the lowly and gate, it doesn't alter or process anything it just remembers things and changes its mind only when instructed to. This might be more interesting question than I first thought. Waiting to here othe responses. Gary From: drcuthb...@micron.com Reply-To: drcuthb...@micron.com To: emc-p...@majordomo.ieee.org Subject: opinions, please Date: Fri, 7 Nov 2003 10:37:10 -0700 I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc _ Compare high-speed Internet plans, starting at $26.95. https://broadband.msn.com (Prices may vary by service area.) This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
opinions, please
I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
SCV EMC Society Meeting Announcement: Prof. Todd Hubing, Nov. 11 in Santa Clara
PCB EMC Design Guidelines: A Brief Annotated List Don't miss this event! Here is your chance to listen to Professor Todd Hubing, world-renowned expert! All welcome, IEEE membership NOT required, Bring collegue(s)! Gathering/Social begins at 5:30pm, meeting begins at 7:00pm Visit http://www.scvemc.org www.scvemc.org for details and directions Tuesday, 11 November 2003 Meeting Notice Applied Materials Bowers Cafe, 3090 Bowers Avenue, Santa Clara, CA PCB EMC Design Guidelines: A Brief Annotated List - Prof. Todd Hubing University of Missouri-Rolla (UMR) Details: Some of the worst printed circuit board design choices are made by engineers who are trying to comply with a list of EMC design guidelines. At the University of Missouri-Rolla, students working with a list of 40 good EMC design guidelines tend to produce board layouts that are worse than layouts produced by students with no access to guidelines. Nevertheless, a short prioritized list of design guidelines can be helpful at times. This presentation reviews some of the more general EMC design guidelines for printed circuit board layout and attempts to categorize them as good, bad or indifferent. About the Presenter: Todd Hubing received his B.S.E.E. degree from the Massachusetts Institute of Technology in 1980, his M.S.E.E. degree from Purdue University in 1982, and his Ph.D. in Electrical Engineering from North Carolina State University in 1988. From 1982 to 1989, he was employed in the Electromagnetic Compatibility Laboratory, IBM Communications Products Division, in Research Triangle Park, NC. In 1989, he decided that he wanted to spend less time fixing EMC problems and more time trying to understand them, so he left IBM to join the faculty at the University of Missouri-Rolla (UMR). He is currently a Professor of Electrical and Computer Engineering at UMR and part of a team of faculty and students working to solve a wide range of EMC problems affecting the electronics industry. Prof. Hubing teaches the Grounding and Shielding and High-Speed Digital Design courses at UMR, where he has received several awards for teaching and faculty excellence. He's been an associate editor of the IEEE Transactions on EMC and the Journal of the Applied Computational Electromagnetics Society. He is currently the President of the IEEE EMC Society. Hans Mellberg Engineering Manager BACL 230 Commercial Street Sunnyvale CA 94085 USA 408-732-9162 x38 408-732-9164 fax
RE: EN 61000-3-2:2000
Are there any official clarifications available concerning the repeatability test? Regards, Jon Francis www.voltech.com From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: 14 September, 2002 8:09 AM To: emc-p...@majordomo.ieee.org Subject: Re: EN 61000-3-2:2000 I read in !emc-pstc that rehel...@mmm.com wrote (in ofd47a064b.f63246cb-on86256c32.00321...@mmm.com) about 'EN 61000-3-2:2000' on Thu, 12 Sep 2002: Clause 6.2.3.1 (page 13) of the above standard talks about repeatability. Does this mean that the harmonic tests must be repeated a certain numbers of times or is repeatability used to determine or shorten the test observation period? Repeatability is used to determine the length of the test observation period. There is NO need to repeat measurements. There may be a proposal to clarify this officially. Also in Table Z1 (clause 6.2.4, page 14), what is the type of equipment behavior called out as quasi-stationary? Equipment whose harmonic emissions vary with time only to an insignificant extent. The 'quasi-' recognizes that it is very unlikely that there would be absolutely no variation with time. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
