The model 244AL is a Model 244A ISOPROBE® Electrostatic Voltmeter with its measurement range reduced to make precision high-speed, low-noise electrostatic measurements in the range of ±15 volts. This range reduction enables the instrument to resolve 10 mV on the surface. Front panel zero and balance controls elminate zero shift with spacing changes.
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Contact potential measurements
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Electrophotographic measurements
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Radiation effect studies
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Electret research
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Bioelectric potential studies
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Disk drive media research