How Can I See The Watt Draw From A Generator? - Electrical - Page 2 - DIY Chatroom Home Improvement Forum
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Old 07-13-2009, 09:23 AM   #16
 
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Here's an interesting response I got from the technical guys at NoOuttage.com:


Thanks for the contacting NoOutage.com LLC. The RMK-15-F is designed for a maximum full scale load of 15,000 Watts. So at full load on your generator of 8,000 Watts you will be reading a little above half scale. And at typical running loads of half that you will be way down at one quarter scale. So, this meter will work but it won't read very accurately.

A better choice would be the electronic LED meter at this link with the appropriate CT...

http://www.nooutage.com/e140132-5.htm

Reply if you have further questions.
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Old 07-13-2009, 12:44 PM   #17
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Quote:
Originally Posted by Yoyizit View Post
Apparently, but the disclaimer about 10 kW, min., is puzzling.
This link is very short on specifics. Be careful. If you e-mail them with questions but they call you back with answers, be especially careful.
Almost surely it's just because you'll be wasting valuable scale real estate on wattages you'll never reach.

Just like any meter, you want to pick a full scale setting that gives you a reasonable range.

Edit: Oh I see they basically said the same thing, guess I was right.
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Old 07-13-2009, 02:29 PM   #18
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Maybe somebody makes a power meter with a logarithmic scale (but the logging circuit tends to make them temperature sensitive).
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Old 07-13-2009, 02:52 PM   #19
 
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These guys at NoOutage are very helpful and I feel as though they are definitely earning my business. Here is the latest email which clarifies a few things (at lest for me

This meter (referring to Powermeter PRO) actually senses current through the CT and displays percent of full load. That makes it easy for anyone to understand.
Full load through the L1430R outlet would be 30A x 240V = 7200W. So, if you order the 60/5 ratio CT the loading scale on the meter will display 100% load at 7200W. To get the maximum 8000W output through this 30A outlet you would have to overload the outlet slightly (not advisable).


I'm wondering if I could get a slightly larger unit with the understanding that the 8th LED is full power instead of 10 out of 10 (for example).
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Old 07-13-2009, 05:17 PM   #20
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The Powermeter pro seems like a good unit. Go for it and tell us how it works.
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Old 07-13-2009, 05:29 PM   #21
 
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Originally Posted by dcopps View Post
The Powermeter pro seems like a good unit. Go for it and tell us how it works.
I will. I'll do a little photo review of the install and results
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