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Old 03-29-2008, 07:21 PM   #15
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Check out the Xantrax web site. In the Q & A section it says that it takes a special volt meter to read modified sine wave. With a regular meter it will show 60-99 volts.

Bill & Kathy

95 Itasca SunRise 29RQ
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Old 03-30-2008, 02:40 AM   #16
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It's not really a "special" type of meter, but it has to use the RMS (Root Mean Square) method of calculating voltage rather than calculating it from the peak voltage, which is much lower on a modified sine inverter. Inexpensive digital meters tend to use the peak calculation and thus give low readings on Modified Sine, while mid-better quality units use RMS. Old fashioned analog meters generally give accurate readings on Modified Sine.

Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
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Old 03-30-2008, 04:43 AM   #17
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If I remember correctly,(and I don't sometimes), the average, or RMS voltage is .707 of peak voltage.


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