Conrad, This might sound really stupid, but double check to make sure you have AC power to the inverter input terminals. I'm working from memory here, but I think I remember Brian Farhi saying that the Fronius inverter first looked for frequency before voltage, and no AC present will throw a frequency out of spec error (zero is definitely out of range!).
However, if you need to get a scope you might want to consider getting one of the USB scopes that are now available, especially if you tend to carry a laptop with you on the jobsite anyway. I picked up a PicoScope a while ago, and have been pretty happy with the value for the buck. http://www.picotech.com/oscilloscope-specifications.html. It's also really handy in that it's small and packs up tight in a Pelican case with all my meters. Phil Undercuffler Conergy ---------- Forwarded message ---------- From: "Conrad Geyser" <[email protected]> To: "'RE-wrenches'" <[email protected]> Date: Thu, 20 Aug 2009 07:54:04 -0400 Subject: [RE-wrenches] Oscilloscope Esteemed Wrenches, We haven't talked oscilloscopes since 2007. We have a Nantucket Fronius inverter that is telling us there is an AC frequency problem. It seems feasible that there is a frequency issue way out there and that we better check that. Any reviews on the Velleman handheld (or any other)oscilloscope? http://www.kitsusa.net/phpstore/html/VELLEMAN-HPS10SE---PERSONAL-SCOPE-10MSs ---SPECIAL-EDITION-1485.html thanks, Conrad Cotuit Solar
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