Brian, I completely agree - cognitive dissonance is a major problem. That's what I was alluding to in my 'stop light' comment.
If it were my product, I'd use white or green for 'Power On'. I'd save the Orange LED for warnings. The only time I don't think this is as much of a factor is if there is only one indicator lamp on the product, in which case you can make it any colour you like. -- Doug Nix, A.Sc.T. IEEE Engineering & Human Environment Joint Chapter Toronto Section, Ontario, Canada http://ewh.ieee.org/r7/toronto/chapters/humanenv.htm [email protected] mobile (519) 729-5704 fax (519) 653-1318 Find me LinkedIn at http://www.linkedin.com/in/dougnix Fostering Technological Innovation and Excellence for the Benefit of Humanity. On 5-October-2010, at 12:30, Brian O'Connell wrote: > Doug and Robert, > > My previous reply did not mention tables 2,3,4 in IEC60204 because > the OP did not indicate if the device was for North America, or was > a machinery device. In any case, orange is not specified for any > operator indicator or condition in 60204-1. > > The use of 'orange' illumination is problematic unless the indicator > will be next to a red source where the human can immediately note > the difference. > > For consumer products, color-based information must not be subject > to cognitive dissonance. > > Brian > >> -----Original Message----- >> From: [email protected] [mailto:[email protected]]On Behalf >> Of Doug Nix >> Sent: Tuesday, October 05, 2010 8:48 AM >> To: [email protected] >> Cc: [email protected] >> Subject: Re: [PSES] Is this LED color ok to use? >> >> Robert, >> >> In the industrial world these are the expected colours for pilot >> lights (based on EN 60204-1. BTW, the same colours are used in ANSI/ >> NFPA 79): >> >> Colour Meaning Explanation >> Action by operator >> RED Emergency Hazardous >> Condition Immediate action to deal with >> the hazardous condition (e.g. By operating the e-stop) >> >> AMBER/Yellow Abnormal Abnormal condition, >> Monitoring and/or >> intervention >> >> impending critical condition >> >> GREEN Normal Normal >> condition Optional - no action required >> >> BLUE Mandatory Indication of a >> condition that Mandatory action >> >> requires action by the >> >> operator >> >> WHITE Neutral Other >> conditions. May be Monitoring >> >> used when there is doubt >> >> about the application of >> >> RED, YELLOW,GREEN, >> BLUE >> >> Based on 'normal' Western expectations, an orange light >> would be more >> likely to be a warning than a normal condition. If this is a >> consumer >> product, consider the basic traffic light, recognizing that it sets >> the expectations for most people. Orange is pretty close to >> Yellow or >> Amber. >> >> Just my two cents... >> -- >> Doug Nix, A.Sc.T. >> IEEE Engineering & Human Environment Joint Chapter >> Toronto Section, Ontario, Canada >> http://ewh.ieee.org/r7/toronto/chapters/humanenv.htm >> >> [email protected] >> mobile (519) 729-5704 >> fax (519) 653-1318 >> >> Find me LinkedIn at http://www.linkedin.com/in/dougnix >> >> Fostering Technological Innovation and Excellence for the >> Benefit of >> Humanity. >> >> On 5-October-2010, at 09:23, Robert Macy wrote: >> >>> Is this color ok to use as a flashing indication [once a second] >>> that the >>> portable unit is operating ok? Any countries object? >>> >>> Avago HLMP-EJ08-Y2000 >>> Orange 605nm >>> >>> Or, does orange get too easily confused with red? >>> >>> Anybody recommend an alternative low power, super bright, >> acceptable >>> LED? > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc- > pstc discussion list. To post a message to the list, send your e- > mail to <[email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieeecommunities.org/emc-pstc > Graphics (in well-used formats), large files, etc. can be posted to > that URL. > > Website: http://www.ieee-pses.org/ > Instructions: http://listserv.ieee.org/request/user-guide.html > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher: <[email protected]> > David Heald: <[email protected]> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
