Product versus generic EMC standards

There is a requirement that if a product standard exists than this should be applied to relevant products rather than using a generic standard. Can anyone send me a link to where this principle is definitively stated e.g. a governmental website etc. Ian Gordon The contents of this email

EN61010 + UL508C

All EN 61010-1:2001, Section 9.3 Limited-energy circuit states that one of the criterion for a circuit to be deemed a limited energy circuit : b1) the maximum available current is limited inherently or by impedance so that it cannot exceed the relevant value of table 13; Looking at Table 13

RE: RF What-if (was: RE: Another Cancer Scare?)

...and all this from an expert in the field. Ian Gordon From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Mark Hone Sent: 18 August 2008 17:50 To: emc-p...@ieee.org Subject: RE: RF What-if (was: RE: Another Cancer Scare?) Gentlemen - It seems to me this is

Advantest spectrum analyser

All We have an Advantest 3361C spectrum analyser with a faulty on/off switch. Does anyone know who is able to service this in the UK? Ian Gordon The contents of this email and any attachments are confidential and are provided solely for the use of the intended recipient(s). If you are not

EN61000-4-34 Annex C

All Has anyone tried using EN 61000-4-34 which is concerned with supply voltage variations in systems with a input current of over 16Amps? My concern is with the derivation of the equations given in Annex C and whether these are correct. Any help would be appreciated. Ian Gordon The contents

NSG 2200 AC switch commands

All Has anyone got any experience of programming a Teseq (formerly Schaffner) NSG 2200 AC switch via either RS232 or IEEE? If you have would you be prepared to share the command set, please? Ian Gordon The contents of this email and any attachments are confidential and are provided solely

Measuring instruments in the EMC directive

All Can any one tell me what types of equipment are classed as Measuring Instruments within the EMC directive? Ian Gordon *** This email is confidential and intended solely for the use of the individual to whom it is addressed.

RE: Machinery Directive acoustic requirements

John et al Yes - ISO 37xx not IEC. Sorry for the confusion. Ian Gordon _ This e-mail has been scanned for viruses by MCI's Internet Managed Scanning Services - powered by MessageLabs. For further information visit

RE: Machinery Directive acoustic requirements

Peter You need to see if there is a relevant product standard which will detail the required uncertainty of measurement e.g. do you need a fully anechoic room etc. The tests required therein will undoubtedly be based on the IEC 37xx series and IEC 3744 in particular. My understanding is as

MEDICAL SAFETY STANDARDS

All Does anyone have information on these 2 standards: IEC 60101-1 and UL 60601-1? Are they equivalent? I am not certain that the IEC version actually exists - it doesn't appear on the IEC website but a couple of other sites do quote it. This may be a typo from a customer! Any help would be

RE: Window of Uncertainty

Dave et al Assuming you have determined an uncertainty budget for the measurement then section 4 of the following UKAS document suggests what to do in instances of this nature. http://www.ukas.com/pdfs/Lab34.pdf Also, if anyone is attempting to calculate an uncertainty budget for testing the

RE: Denmark AC outlets

All I have found the following page useful for determining what type of mains connectors are used in different parts of the world: http://www.interpower.com/icl/guide.htm. I'm sure there are others too! Ian Gordon _ This

RE: ESD for a dev lab work place

Derek We apply the following standard throughout the site - development and manufacturing - since there's always a chance that a pcb from a development unit may end up on the shop floor by mistake. BS EN 61340-5-1: Electrostatics - protection of electronic devices from electrostatic phenomena.

Measurement uncertainties for voltage measurement

Everyone, This may seem to be a little out of the groups remit but someone may have had experience of this. I am trying to determine the measurement uncertainty associated with calibrating an instrument which is essentially a voltmeter. This is done using a reference voltage source and a second,

INSTRUCTIONS FOR SETTING UP CLARE TESTER

All Does any one have a copy of the setting up instructions for a Clare Comprehensive Test Station part number A433/203J/213/AM? Please contact me off-line. Ian Gordon _ This e-mail has been scanned for viruses by MCI's

RE: Battery pack for Schaffner NSG 435 ESD simulator

Nafti I had the same issue within the last few weeks - and got a battery pack made by a Cell Pack Solutions http://www.cellpacksolutions.com in the UK. They only charged (no pun intended) about a quarter of the price Schaffner wanted, but they did have some difficulty getting the cells which are

RE: Product standard for telescope

All I can appreciate Derek Walton's dilemma about what standard to apply for such a device as I have come across the same sort of issue with some of our equipment. Certain products can be sold into both large industrial installations or smaller retail outlets, such as an opticians shop which may

Temperature effects on conducted emissions?

All Can anyone suggest a means by which the indicated signal from a LISN + transient limiter + receiver combination can result in a 30dB change over one month? I used the same reference source and test configuration on both occasions to generate emissions. However, the source is merely a piece of

RE: Surge testing

Ian Section 7.5 of EN61000-4-5 describes methods of applying surges to screened leads. I test products to EN61326 and apply surges to screened leads as described. Ian Gordon From: White, Ian [mailto:ianwh...@spiraxsarco.com] Sent: 31 July 2003 14:41 To: IEEE Forum (E-mail) Subject: Surge

RE: NEW EMC Standards

Alan et al I had a look at the OJ link you sent to check that I had the latest versions of the standards I use. However, the document doesn't include the 61000-4-x EMC immunity standards. Are they listed elsewhere? Ian Gordon From: Alan E Hutley [mailto:nutwoo...@nutwood.eu.com] Sent: 22 July

RE: Field Trials CE Mark responsibility

Alex Is the device being placed on the market or being given to the customer as an evaluation unit? My understanding is that if it isn't being placed on the market then CE marking isn't required - as the principle of CE marks is about the free movement of goods for sale. However, the product must

RE: Lab Equipment/WEEE RoHS

Ron, Joe, et al There is little expansion on the categories listed in Annex 1A of the document http://164.36.164.20/sustainability/pdfs/finalweee.pdf My concern is with equipment in category 9 of the Annex. Would you consider that this includes equipment falling within the scope of product

RE: NEW EMC DIRECTIVE

provided with a piece of equipment would be covered by the D of C for that equipment. Ian Gordon -Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: 08 May 2003 17:50 To: emc-p...@majordomo.ieee.org Subject: Re: NEW EMC DIRECTIVE I read in !emc-pstc that Gordon

RE: CISPR 16-4 + VERIFICATION OF TEST EQUIPMENT

Luke et al Are you trying to satisfy the relevant clauses of ISO 17025 General requirements for the competence of testing and calibration laboratories ? I have been following the guidance in UKAS document LAB 34 http://www.ukas.com/pdfs/Lab34.pdf for calculating uncertainties in EMC measurements.

NEW EMC DIRECTIVE

All There is a review of the new EMC directive available written by Alan McHale of RFI Ltd. available at the following website: http://www.compliance-club.com/article.php?sid=137mode=order=0. The author refers to ready-made connection devices and indicated that these now fall within the scope of

RE: Performance Criterion

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

CISPR 16-1 Amd.2 Ed. 2.0 (2003-04)

Everyone The above amendment to CISPR 16 has just been announced on the IEC website. http://www.iec.ch/online_news/justpub/jp_2003/jp.htm#emc However, there are no details as to the actual changes made to the original version. Does anybody know what these changes are and the implications for

DERIVATION OF CREEPAGE AND CLEARANCES

All Does anyone know from where the values for creepage and clearances given in EN61010-1 (safety requirements for electrical equipment for measurement, control and laboratory use - part 1 general requirements) are derived i.e. are there other standards below 61010 in this respect? Thanks Ian

SOUND INTENSITY MEASUREMENTS USING ISO 9614

All Has anybody got any experience in using ISO 9614 which they are prepared to share? Ian Gordon _ This e-mail has been scanned for viruses by the WorldCom Internet Managed Scanning Service - powered by MessageLabs. For further

RADIATED IMMUNITY REQUIREMENTS FOR EN61326

Everybody Can you advise me as to whether the same reduction in field strength is available when applying the industrial immunity requirements of EN61326 as when applying the generic industrial immunity standard EN61000-6-2. EN61000-6-2 permits a reduction in field strength from 10 to 3 V/m over

RE: Superseded standard

Ian Yes, the products should have been re-tested and a new D of C raised to reflect this. Depending on what they are you may find that there is now a product standard which relates to specifically that product group. In that case you should apply this and not the generic standards i.e. 50082-1

VIRUS ALERT!

All I have been informed today that my computer was infected with a virus. This was W32.HLLW.Lovgate.C@mm and is a variant of W32.HLLW.Lovgate@mm. The virus may be passed via email. Thus I recommend you check your computer using, for example Norton Anti Virus software ensuring this is the latest

DRAFT OF NEW EMC DIRECTIVE

All I have a copy of the latest draft of the EMC directive (published December 2002) which is with the new holders of the EU presidency for implementation although no firm time table is available. I uploaded it to the EMCPSTC website (well, I tried!). Contact me if you want a copy. Ian Gordon

RE: Grounding of EUT in EN61000-4-6 conducted immunity test

Dan et al I have a Word document which I believe gives guidance on this matter. If you would like a copy please let me know. Ian Gordon _ This e-mail has been scanned for viruses by the WorldCom Internet Managed Scanning

EN 55022:1998 plus A1:2000

All I have details of a commercially available CMAD (Common Mode Absorbing Device) clamp if anyone wants them. I don't represent the manufacturer and thus this is not intended to be an advertisement, merely technical information. Please contact me if you would like the details. Would it be

RE: EN55022:1998 + A1:2000

All I can see that my manager would prefer to use Neven's approach - it is probably much cheaper than buying clamps. However, does anybody have any practical experience of this? A reply from an accredited test house would be welcomed! Thanks Ian Gordon From: neve...@attbi.com

CALIBRATION AND CONSTRUCTION OF HELMHOLTZ COILS

All I would like to construct a Helmholtz coil to perform magnetic field immunity testing at DC frequencies and thus simulate the effect of a permanent magnet. There are some details on construction in EN61000-4-8 which details power frequency magnetic field immunity testing within the scope of

RE: Wee Directive

Ian I'm sure ERA would give you an informed opinion, at a price! http://www.era.co.uk/ Thanks Ian Gordon From: White, Ian [mailto:ianwh...@spiraxsarco.com] Sent: 23 January 2003 08:35 To: IEEE Forum (E-mail) Subject: Wee Directive Hi everybody The Waste Electrical and

EUROPEAN VOLTAGE HARMONISATION

All Does anybody know what the planned European Voltage Harmonisation levels are (I think there is a change in tolerance) and when they will be introduced? Thanks Ian Gordon _ This e-mail has been scanned for viruses by the

DOCOPOCOSS?

All In the link supplied below by Peter my concern is with EN61010-1. Will EN61010-1:1993 replace EN61010-1:1990 on 1/4/04? Does the table show that after 1/4/04 the 2001 version must be used? May both the 1993 and 2001 versions be used concurrently after 1/4/04? By the way, are the dates quoted

DIN VDE 0580:1994

Everybody Can anyone offer advice as to whether the above VDE standard is in anyway comparable in content to EN61010: Electrical equipment for measurement and control use - safety requirements? Thanks Ian Gordon _ This e-mail

RE: Revised EMCD

Gert et al Does anybody know how long it may be before the new directive might be implemented? Thanks Ian Gordon _ This e-mail has been scanned for viruses by the WorldCom Internet Managed Scanning Service - powered by

IEEE 1100 SECTION 3.5

Group Does anybody know if there is correlation between IEEE 1100 section 3.5 and any of the tests within the EN61000-4-x range? It has been suggested that the IEEE 1100 test and EN61000-4-4 (fast transient testing) were related. The information I have about section 3.5 of the IEEE document

RE: common mode immunity coupling units

/rfmff/tech-transfer/freemet/ Thanks Ian Gordon -Original Message- From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: 07 November 2002 21:13 To: Gordon,Ian Subject: Re: common mode immunity coupling units That looked like an excellent report, but the link wasn't working

RE: STOP-ocoss

All I agree with John. This business is full of acronyms and numbers. Any means of clearing the fog is beneficial to the group as a whole. It would be useful if we had a list of accepted acronyms and their meanings: such as MRU, BTW, AFAIK, NB, ESD, CB, CBO, DOC, DOCOPOCOSS, EFT, AIUI and many

RE: common mode immunity coupling units

All The following website gives a dissection of uncertainties in immunity testing including EN61000-4-6 and there will be a meeting at NPL later this month. http://www.elmac.co.uk/ Thanks Ian Gordon -Original Message- From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: 07

RE: Semiconductor Equipment for Japan, China, Korea and Singapore

Ian Gordon -Original Message- From: Peter Merguerian [mailto:pmerguer...@itl.co.il] Sent: 05 November 2002 13:23 To: 'Gordon,Ian' Subject: RE: Semiconductor Equipment for Japan, China, Korea and Singapore Ian, Yes!! This e-mail message may contain privileged or confidential

VSWR FROM ATTACHED DATA

People You may remember that you helped me a few weeks ago with VRC/VSWR assessments. As part of the same work I am attempting to assign a VRC/VSWR for a coupling de-coupling device (CDN) but have not been able to get a typical value from the manufacturer of the device. However, I have been sent

RE: requirement for surge and EFT

Something else to remember is that if the product has lines over 30m long or (for some product standards) which pass outside buildings, then these must also be surge tested. Burst testing on I/O leads is required if they are over 3m long. These tests may apply to the system as a whole.

RE: RADIATED IMMUNITY TESTING ABOVE 1GHz

My mistake - the old light industrial generic immunity standard EN50082-1 (and EN61000-6-1?) includes use of a keyed carrier at 900MHz and by mistake I had assumed that the newer industrial generic immunity standard would also. This is not the case. However, it seems a little strange that the

RADIATED IMMUNITY TESTING ABOVE 1GHz

Everybody Does anyone know whether it is necessary to perform radiated immunity tests above 1GHz when applying BS EN61326 which is the product standard titled Electrical equipment for measurement, control and laboratory use - EMC requirements? The products concerned are not telecom or IT devices.

MEASURING VSWR WITHOUT A DIRECTIONAL COUPLER

Everybody I need to assess the uncertainty of radiated emission and immunity measurements and thus need to measure the mismatch between components in the systems. The frequency range of interest is 30MHz-1GHz) Is there a way in which I can measure the VSWR of a cable-antenna-receiver/amplifier

RE: CE Marking for Passive speakers

...@majordomo.ieee.org Subject: Re: CE Marking for Passive speakers I read in !emc-pstc that Gordon,Ian ian.gor...@edwards.boc.com wrote (in E1BA0362B28ED211A1E80008C71EA306018190AA@EXC_EAS01) about 'CE Marking for Passive speakers' on Wed, 18 Sep 2002: Thus whilst I agree with your view on loudspeakers, I don't

RE: CE Marking for Passive speakers

John Obviously loudspeakers could be affected by external magnetic fields - and thus should be tested using the procedure described in EN 61000-4-8 (immunity to power frequency magnetic fields). Thus CE marking against the EMC Directive is appropriate. In addition, in some instances the drive

RE: Books / EMC in Installations

Amund Try EMC for Systems and Installations by Tim Williams and Keith Armstrong. ISBN 0 7506 4167 3 Published by Newnes Thanks Ian Gordon -Original Message- From: am...@westin-emission.no [mailto:am...@westin-emission.no] Sent: 15 August 2002 14:25 To: emc-p...@majordomo.ieee.org

RE: Domestic 3 meter chamber emissions testing for the world ...

Doug You say Domestic 3 meter... I believe Class A devices are intended for industrial use only and not domestic. Anyway, as far as the FCC and the European EMC directive is concerned then a 3m test distance is acceptable. However, in the event of dispute then measurements at 30m take precedence.

ACOUSTIC NOISE MEASUREMENTS

Everybody I have read a number of papers on noise measurement but am still unsure about the current standards we should apply when type testing industrial products for compliance with the Machinery Directive. The products will only be used indoors. Can you offer any advice? Furthermore, as part

RE: Surge protection

Robert et al I am concerned with a product which is 99% electromagnetically benign i.e. it contains no control electronics, other semiconductors or magnetically sensitive components. However, the product is mains powered and thus liable to interference due to voltage surges following lightning

CISPR 17

All I have a number of questions concerning specification of mains filters: The first is can somebody explain what CISPR 17 is and how it is used to produce response curves for filters? Secondly, manufacturers data for filter response curves refer to 50ohm - 50ohm measurements

RE: EFT Capacitive Clamp

Vic I believe that the diagram is for indicative purposes and attempts to show all test configurations. Thus when I perform this testing I use one continuous earth plane to which the EUT is earthed mounted on 10cm supports (if the EUT is not floor standing). Have a look at figure 9. Thanks Ian

KOREAN S MARK REQUIREMENTS

Does anybody know how to achieve compliance with the Korean S mark legislation? Ian Gordon _ This message has been checked for all known viruses by UUNET delivered through the MessageLabs Virus Control Centre. For further

EXEMPTIONS FROM FCC REGS

Is the following interpretation of clauses within section 15.103 of Title 47 of the FCC regs valid? The interpretation suggests that ANY digital electronic control used in an industrial plant is exempt from the specific requirements. Or does the exemption apply only to electronic control systems

SIMULATION OF CONDUCTED EMISSIONS

Does anyone know of a CAD package which will provide a realistic simulation of conducted emissions? Thanks Ian Gordon _ This message has been checked for all known viruses by UUNET delivered through the MessageLabs Virus

RE: CE MARKING A SYSTEM

Eric Lifsey (hellflo...@aol.com)wrote: Also, EN 61326-1 lets you relax the performance criteria of the EMC tests for applications that are not critical (e.g. if a random system crash isn't too objectionable for the particular use: such as a primarily diagnostic application that will be

EXTENDING UPPER FREQUENCY LIMIT FOR RADIATED MEASUREMENTS

I was recently told that the upper limit for radiated emission/immunity testing of non-telecomm equipment was to be raised to 3GHz. Can anyone confirm this and if so, are there plans to amend the European generic standards? Thanks Ian Gordon

DWELL TIME FOR AVERAGE DETECTORS

Can anybody advise as to what dwell time should be used for an average detector when measuring a broadband noise source? This time obviously increases the total test time unnecessarily if set too high and reduces the measurement accuracy if set too low. Thanks Ian Gordon

CE MARKING A SYSTEM

Can anyone advise the course of action in applying a CE mark as regards EMC to a system some of whose component parts are not built by us and whose D of C's claim light industrial immunity. However, the system has been running in very harsh environments e.g. plasma etch applications at customer