Re: [PSES] LED Chamber Lighting - drivers outside the chamber

If the multi-string controllers are switched-mode, then we have the RFI problem again. Or, can the switching frequency be set to 500 Hz, so the 10th harmonic becomes 5 kHz which is below 9 kHz ? twisting the wires will also help for the frequency range 9 kHz to 30 MHz. Rene Charton

Re: [PSES] LED Chamber Lighting - drivers outside the chamber

selected and matched for forward voltage at a given current, otherwise they will have different brightness and efficiency Regerds Rene Charton "ce

Re: [PSES] LED Chamber Lighting - drivers outside the chamber

than the peak voltage found above and limit the current to the one calculated above - If the power supply is a switching mode type, add a filter - Have the LED portion in the chamber, and the DC power supply outside the chamber. Any other ideas to generate a clean DC current? Kind regards Rene

[PSES] I am out of the office - until 10/23/2012

I will be out of the office starting 11/28/2012 and will not return until 11/30/2012. I will have very limited access to my e-mail, therefore please contact my deputy: arvin...@twn.tuv.com - This message is from the IEEE Product Sa

[PSES] I am out of the office - until 10/23/2012

I will be out of the office starting 11/27/2012 and will not return until 11/28/2012. I will have very limited access to my e-mail, therefore please contact my deputy: arvin...@twn.tuv.com - This message is from the IEEE Product Sa

[PSES] I am out of the office - until 10/23/2012

I will be out of the office starting 11/22/2012 and will not return until 11/23/2012. I will have very limited access to my e-mail, therefore please contact my deputy: arvin...@twn.tuv.com - This message is from the IEEE Product Sa

[PSES] I am out of the office - until 10/23/2012

I will be out of the office starting 10/18/2012 and will not return until 10/24/2012. I will have no access to my e-mail, therefore please contact my deputy: arvin...@twn.tuv.com - This message is from the IEEE Product Safety Engin

[PSES] I am out of the office - for Thursday

I will be out of the office starting 07/19/2012 and will not return until 07/20/2012. I will have very limited access to my e-mail, therefore please contact my deputies: For Project related issues: arvin...@twn.tuv.com For general issues: thomas.be...@twn.tuv.com - --

[PSES] I am out of the office - for Wednesday

I will be out of the office starting 07/03/2012 and will not return until 07/05/2012. I will have very limited access to my e-mail, therefore please contact my deputies: For Project related issues: arvin...@twn.tuv.com For general issues: thomas.be...@twn.tuv.com - --

[PSES] I am out of the office - for one day

I will be out of the office starting 05/24/2012 and will not return until 05/25/2012. I will have no access to my e-mail, therefore please contact my deputies: For Project related issues: arvin...@twn.tuv.com For general issues: thomas.be...@twn.tuv.com -

[PSES] I am out of the office - for one day

I will be out of the office starting 05/17/2012 and will not return until 05/18/2012. I will have no access to my e-mail, therefore please contact my deputies: For Project related issues: arvin...@twn.tuv.com For general issues: thomas.be...@twn.tuv.com -

[PSES] I am out of the office - for my annual vaccation

I will be out of the office starting 03/14/2012 and will not return until 04/12/2012. I will have very limited access to my e-mail, therefore preferably please contact my deputies: For FCC/Canada and EU-Notified Body: arvin...@twn.tuv.com For Telecom International Approvals: jane.p...@twn.tuv.com

Re: [PSES] FCC - Intentional Radiators, Restricted Bands and 960 MHz - conducted measurements would not be helpful

I think conducted measurements would not be helpful anyway, because in this case the use of a conservative antenna gain value is required. (see page 8 of 558074 D01 DTS Meas Guidance v01) Kind regards Rene

Re: [PSES] CE marking of deep-fat fryer

oil does not reach the bottom part of the outside of the fryer, but is instead collected in a ring attached to the upper part of the outside Rgds Rene Charton Derek Walton

Re: Pre-Compliance testing for radiated emissions using a current probe

can remodel that scenario? Regards Rene Charton -- | ±H¥óªÌ: POWELL, DOUG | ¦¬¥óªÌ: EMC-PSTC (E-mail) ; 'Treg (E-Mail)' | ¥D¦®: Pre-Compliance testing for radiated emissions using a current probe | ¤é´Á: 1999¦~2¤ë12¤é AM 03:28 | | Hello Group, | | Some time ago (1996) i

Re: RE: isopropyl alcohol

It does matter. I once saw a label where the printing colour would apparently soak in the water, so later the petroleum spirit could not go in and dissolve it. Rene Charton -- | 寄件者: Ned Devine | 收件者: emc-p...@ieee.org | 主旨: RE: RE: isopropyl alcohol | 日期: 1998年7月14日 PM 10:33 | | Hi

Re: EN 55022 ITE Class A vs. Class B?

-- ±H¥óªÌ: Ing. Gert Gremmen writes: >Hello All, >You all fell over me when I categorized all equipment and apparatus to Class B according to EN 55022. >The whole discussion here is targeted towards the distinction between domestic and industrial or other environments. Well, >for now

Re: Aircraft power

At least some of the outlets are fed from a converter, I can connect an electric razor that works at 60Hz in most aircraft toilets. -- > 寄件者: 102 Schilke, Paul > 收件者: pstc > 主旨: Aircraft power > 日期: 1997年9月17日 AM 12:55 > > > Hello everyone, > > Could someone please confirm that all c

Re: Distance of Measurements

ll take precedence. > `^^ Where do I find this statement in EN 55 022 ? Thanks and regards Rene Charton

Re: Bridge Rectifier on AC Mains

I think the rationale behind requesting approved components for X capacitors is that in the past there have been some unpleasant failure modes in those capacitors. In the case of a short circuit in the isolation the resistance the capacitor does not become zero, but something in the 10 Ohm rang

Re: Taiwan

-- > 寄件者: littlew...@aol.com > 收件者: emc-p...@ieee.org > 副本抄送: emcg...@aol.com > 主旨: Taiwan > 日期: 1997年2月15日 AM 02:34 > > 1. Can ITE products be VERIFIED to the new Chinese laws? -> It must be tested according to the Chinese National Standard for ITE, which basically is the same as CISPR

Re: Where should Equipment Primary Fuses be Located?

Is there a fuse required at all? I think when the supply is from a type A plug, the fuse in the building installation is enough, however abnormal/short circuit testing must proove that there is no fire or other hazard. -- > From: Jackson, William L > > Good Morning List, > > Does anyo

Re: Toroid Isolation Power Transformers -Reply

ak current. Rene Charton EMC-Manager TUV Rheinland Taiwan

Re: Udated pREN's for Immunity?

-- > From: cortland.richmond...@ccmailsmtp.ast.com > Has anyone the status on immunity testing standards for > Europe? I understand 61000-4-2, 61000-4-3 and 61000-4-4 are > adopted, and 61000-4-5 and 6100-4-8, and 61000-4-11 yet to > become eff

Re: EN60065 requirements

-- > From: Compliance West > To: emc-p...@ieee.org > Subject: EN60065 requirements > Date: 1996¦~11¤ë17¤é AM 07:07 > > To: Audio safety aficionados > > Reference: EN60065:1993 and similar IEC, UL, and CSA standards > > Just a few thinks to chew on. I encourage a response from every

Re: Re[2]: How long for continuous? -Reply

Of course it is a waste of time, but that is not the fault of those who sent the contributions, but of those who wrote the standard and failed to clarify this point. So, in which amendmend will the power level (VA) replaced by the definition of an energy level (J). Anyway, I am still not clear ab

Re: EN 61000-3-2:1995 (-3-3:1995) A12

y back to June > 1, 1998 for Class D equipment? Has it > been approved? > > I have not read this standard and need to know if it > applies at this time to light industrial or heavy > industral equipment. It applies to all equipment that has an input current of less than 16A. > > Rgds Rene Charton

Re: suppressors between the mains and earth

different view on loss of earth connection. Regards, Rene Charton TUV Rheinland Taiwan

Re: "Dentori"

-- > From: Tony Fredriksson > To: emc-pstc > Subject: "Dentori" > Date: 1996年10月26日 AM 02:50 > > > Hi All, > > Any and all feedback on a Japanese requirement referred to > as "dentori" would be greatly appreciated. The requirement has > shown up in a recent customer spec and we are