Kelly, IMC Instruments makes a few differential controllers that have the ability to provide data output for logging & analysis. I have installed one, but have not yet done any data logging; it looks promising.
http://www.imcinstruments.com/Home/Eagle-2%20Group%206-17-08w.pdf YMMV Regards, Glenn Burt Technical Specialist Renewable Power Systems, LLC PO Box 967 Averill Park, NY 12018 V: 518-674-5808 C: 518-810-3174 F: 518-514-1175 E: [EMAIL PROTECTED] www.RPSpower.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kelly Keilwitz, Whidbey Sun & Wind Sent: Friday, November 14, 2008 9:51 AM To: RE Wrenches listserve Subject: [RE-wrenches] SWH data logging Thermal wrenches, We have a customer who wants to log the energy gain of his SHW system. The only viable option we've found is by Resol (also rebranded by Caleffi) which includes their top-line controller (~$280) in conjunction with their data logger, DL-2 ($500). With markup and installation this system will cost our customer over $1K. Are there any other AFFORDABLE options out there, that include data logging to a computer or web interface? Thanks, -Kelly Kelly Keilwitz, P.E. Whidbey Sun & Wind, LLC Renewable Energy Systems NABCEP Certified PV Installer 987 Wanamaker Rd, Coupeville, WA 98239 PH & FAX 360-678-7131 [EMAIL PROTECTED] _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
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