EMC certification of off-road vehicle air conditioners, heaters and auxiliary heaters

I am looking for information on applicable directives/standards for EMC certification of air conditioners, booth rooftop and underhood; air conditioner/heaters and auxiliary electric heaters for off-road (eg farm, mining vehicles, boats). All equipments operate on 27.2 VDC or less. I looked at

Re: ERGONOMICS/Color Red Restrictions

UMBDENSTOCK, DON wrote: Does anyone know if there are any formal restrictions to using red colored lights for front panel displays and indicators? Is there a harmonized European standard or regulation or a specific national regulation that requires the restriction of the color red for

Re: ERGONOMICS/Color Red Restrictions

IEC 73 covers colors of indicator lights and displays. Red is reserved as an emergency or critical safety color. However, some standards (such as IEC 950) allow red indicator lights if there is no confusion as to their meaning. Usually panel indicator lights are labeled so this eliminates the

ERGONOMICS/Color Red Restrictions

From: V. Gasse, Product Safety Authority.TEL 49-(0)7031-16-6796 IBM Germany, Technical Relations...FAX 49-(0)7031-16-6916 e-mail: ga...@de.ibm.com What has been said about the use of red indicators in Standards like IEC 73 and IEC 950 is correct. Here Red Indicators are allowed, if it

Re: EU Directive on Measuring Instruments

Richard Woods wo...@sensormatic.com wrote: I understand that there is a directive concerning measuring instruments? Does anyone know the directive number? Does anyone know the scope of the directive? G'Day! I looked up my copy of the May 1996 ...Links between Products, Directives and

Requirements for Brazil

Hello All, Is anyone familiar with EMC and Product Safety requirements in Brazil. Please provide any Standards, government contacts or anything else of relevance. Thanks in Advance. Regards, Jody Leber j...@ltgservices.com http://www.ltgservices.com LTG Services Suite 103 11940 Alpharetta

Re[2]: Measuring AC

I suspect (but don't know for sure) that the accuracy of a transformer is the way it performs, relative to it's spec's, rather than relative to its history. That is, a _given_ transformer may be extremely accurate once calibrated, but the _initial_ accuracy may be

RE: Regulatory compliance training for students

In addition, I'll bet that if you were to survey the industry, there would be a high percentage of Regulatory Engineers who have Associate Engineering degrees or degrees other than EE. Historically, it has been my observation that product safety is not necessarily a well recognized engineering

Fwd: ERGONOMICS/Color Red Restrictions

Don, I am not sure what industry you are in, but for Industrial Machinery, I know of two standards addressing the use of red colored indicator lights. Hope this helps: EN 60204-1 - Safety of Machinery - Electrical equipment of machines, Part 1, Table 3: Color for indicator lights and their

FW: RE: Taiwan EMC update

Sorry, I'm resending this. It seems it didn't go through. ---Original Message--- Hello everyone, the info about Taiwan is very interesting. Can you please also specify re the levels (i.e. do they require class A or class B for ITE)? thanks

SV: Re: ERGONOMICS/Color Red Restriction

I've experienced that a German GS-certification body did not allow red coloured functional buttons on Information Technology Equipment (ITE) even though IEC950 amd.3 clause 1.7.8.2 allows you to do so. They based their verdict on a descision in an organisation called EK14 (which I'm sure that

Re: Regulatory compliance training for students

Why is the talk centered around safety? Safety specs are construction and performance. They tell you what to do. No secret there. Emissions specs are performance specs. They say nothing about construction. Only one course I've seen for emi/emc offered at a school was a graduate class one

GTEM Cell Experiences?

EMC Folks, Does anyone use a GTEM Cell for Part 15 EMI testing? If so , would you share your experiences, in particular, bad experiences, problems, etc. The advertising tells all the benefits, but I am wondering about the downside. Thanks very much. -- Mike Donnelly donne...@agcs.com

Re: Regulatory compliance training for students

cortland.richmond...@ccmailsmtp.ast.com wrote: had to snip some stuff the original question was whether courses in complying with regulations should be offered in college. This is a queston with many parts to it. If it's just safety, then no. If it's emi/emc, then maybe. If it's about

Uncertainty

Rules are rules. Because we let NVLAP into the situation we now have a more ridged and rigorous certification system in the US than in Europe for some applications. If we are not careful how we implement the rules it will only get worse. There are many people in the government who have not

Re: Re[2]: Measuring AC

% % % I suspect (but don't know for sure) that the accuracy of a transformer is % the way it performs, relative to it's spec's, rather than relative to its % history. That is, a _given_ transformer may be extremely accurate once % calibrated, but the _initial_ accuracy