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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

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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.

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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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