Startup needs a little help in working with multiple input circuits for their non patient contact equipment. Medical laboratory is probably more the point of the equipment. They have been through development cycles a time or two, but are now looking at the need to switch between 120/240 for about 3.3 kw systems.
They are building medical instruments - computers looking at cells (so nothing touching a patient directly). I've been through the product dev. cycle a few times now which is to say - I'm pretty sure what's needed for most implementations to pass the UL type safety issues. The system we're working on now is a little complex because it has the potential to need a lot of power from the wall. That means probably 220 power, but in many uses it doesn't need that much and we'd like to have the option to use 110V power. However, at 110V it may require two separate wall circuits. We would like to discuss our options with someone about configuration of the power entry and what we can and cannot do from a regulatory/safety standpoint. We want the system to have a single switch - which could be many switches remotely switched. Picture a system built from other peoples products and much of it placed inside a box with half a dozen different power supplies (wall wart supplies and PC boxes) used to power the individual modules. We want to make sure our AC power splitting meets regulations and also how we build this to be configurable to 220 Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED INPUT, GAMESMAN, LRE MEDICAL, and MEMTRON products 600 W. Wilbur Avenue Coeur d'Alene, ID 83815-9496 Toll Free: 800-444-5923 X1XXX Tel: (208) 635-8 Fax: (208) 635-8 www.esterline.com/interfacetechnologies<http://www.esterline.com/interfacetechnologies> Technology, Innovation, Performance... Click here<http://www.esterline.com/governance/email_disclaimer/tabid/1532/Default.aspx> to read disclaimer - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
