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Actually analog meters state their accuracy as a percentage of the full scale reading. A meter with 5% accuracy could be off by 20 watts if the full scale reading is 1000 watts. When the meter movement across the scale is not linear that is evident by the change in spacing along the meter scale. Most meters have a large spacing between reference marks at the low end of the scale to compensate for non-linear deflection.

[QUOTE="Captain Kilowatt, post: 575557, member: 39"] Actually analog meters state their accuracy as a percentage of the full scale reading. A meter with 5% accuracy could be off by 20 watts if the full scale reading is 1000 watts. When the meter movement across the scale is not linear that is evident by the change in spacing along the meter scale. Most meters have a large spacing between reference marks at the low end of the scale to compensate for non-linear deflection. [/QUOTE]

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