Alfred’s comment reminds me that I just bought a fairly decent DMM, a Uni Trend UT-61E. This is an auto-ranging 5 digit, 60k count DMM with 0.1% accuracy on DCV, and it cost only about $65. One important feature is that this DMM includes an optically isolated USB interface, plus a free data acquisition suite for my laptop. With just a bit of effort, you could have your laptop monitor the data stream and provide alerts as desired (the software is already set up to create Excel files and create extensive data graphs).
Ed Price WB6WSN Chula Vista, CA USA From: alfred1520list [mailto:alfred1520l...@gmail.com] Sent: Monday, May 30, 2016 12:23 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Handheld or portable voltmeter/ammeter with built-in and adjustable limit function with audible alarm If none of these meet your needs, you can always find any number of those with a programming API and write a program to do whatever you want. Many support USB interface. You can get a cheap windows tablet as the buzzer and attach to the meter through USB. Best regards, Alfred On May 30, 2016 10:57:38 AM PDT, Ken Javor <ken.ja...@emccompliance.com> wrote: Ken & Dieter, Thank you, but none of those really met my criteria. I’m looking for a piece of stand-alone test equipment, a multimeter, where I can set a limit and have the thing generate an audible tone (like during continuity testing) if the preset level is exceeded (or if a measured value is below the preset minimum). Datalogging is not of interest – what I need is a real-time alarm which I don’t have to visually monitor. It just seems like this should exist, and would be extremely valuable for a test facility to have available, custom configurable for a wide variety of thresholds. Ken Javor Phone: (256) 650-5261 _____ From: Ken Wyatt <k...@emc-seminars.com> Reply-To: Ken Wyatt <k...@emc-seminars.com> Date: Mon, 30 May 2016 10:12:47 -0600 To: <EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] Handheld or portable voltmeter/ammeter with built-in and adjustable limit function with audible alarm Maybe one of these could work. http://www.poweringthenetwork.com/site-power-monitor/ https://www.gavazzionline.com/pdf/DIB71CB.eng.pdf https://www.microdaq.com/data-loggers/voltage-current.php www.westell.com/document/ <http://www.westell.com/document/dc-power-monitoring/?dl=1> dc-power-monitoring/?dl=1 <http://www.westell.com/document/dc-power-monitoring/?dl=1> <http://www.westell.com/document/dc-power-monitoring/?dl=1> _______________________ I'm here to help you succeed! Feel free to call or email with any questions related to EMC or EMI troubleshooting - at no obligation. I'm always happy to help! Kenneth Wyatt Wyatt Technical Services LLC 56 Aspen Dr. Woodland Park, CO 80863 Phone: (719) 310-5418 Email Me! <mailto:k...@emc-seminars.com> <mailto:k...@emc-seminars.com> | Web Site <http://www.emc-seminars.com> <http://www.emc-seminars.com> | Blog <http://design-4-emc.com/> <http://design-4-emc.com/> The EMC Blog (EDN) <http://www.edn.com/blog/The-EMC-Blog> <http://www.edn.com/blog/The-EMC-Blog> Subscribe to Newsletter <http://www.emc-seminars.com/Newsletter/Newsletter.html> <http://www.emc-seminars.com/Newsletter/Newsletter.html> Connect with me on LinkedIn <http://www.linkedin.com/in/kennethwyatt> <http://www.linkedin.com/in/kennethwyatt> On May 30, 2016, at 9:56 AM, Ken Javor <ken.ja...@emccompliance.com> wrote: Handheld or portable voltmeter/ammeter with built-in and adjustable limit function with audible alarm For an EMI test, I need to monitor direct current and set a limit above which I get an audible alarm. I don’t want to constantly have to watch an ammeter/voltmeter while also operating the susceptibility equipment. I also don’t want to have to connect a DVM to a PC; I want the limit setting function to be self-contained. Seems as if there ought to be such a device, but I can’t find it. Doesn’t have to be an ammeter per se; if it can measure dc millivolts, I can use a current shunt. Thank you, Ken Javor Phone: (256) 650-5261 - ---------------------------------------------------------------- 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://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.html> <http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com> - ---------------------------------------------------------------- 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://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.html> <http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com> - ---------------------------------------------------------------- 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://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com> -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. - ---------------------------------------------------------------- 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://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com> - ---------------------------------------------------------------- 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://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
