Refurbished Bird 4412A
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Refurbished
Multipower Wattmeter with Rechargeable Battery Multipower, plus/minus 5% Reading Accuracy The Model 4412A uses the basic principles and look and feel of the Model 43 but transforms it into a highly accurate high dynamic range instrument. The mirrored-scale linear range meter has 2 switchable ranges, 0-1 and 0-3. Power is read as a multiple of the value indicated by the pointer, the decimal point location depending upon the range switch position and the factor printed on the plug-in element. Power ranges covered by individual elements are 2 mW to 10 W, 20 mW to 100 W, 200 mW to 1 KW and 2 W to 10 KW, full scale. For most elements, accuracy is plus/minus 5% anywhere above 20% of full scale. The circuitry operates from a rechargeable battery.
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Bird 4412A datasheet & specifications