The instrument is having four ranges for measuring voltages from 2 volt in steps of 1 microvolt on the highest range to 2 millivolt in steps of 1 nanovolt on the lowest range, thereby providing an accuracy of 0.001% to the measuring system. The resistance bridge is having a measurement range from 0.01 ohm to 21 Megohm having limit of error of 0.005% on the lowest range.
The Potentiometer employs two standard cells and one current controller duly assisted by Galvanometer Amplifier to provide very accurate null detection and precision measurement of resistance/voltage values.
The instrument is calibrated against the calibration standards maintained at the Electronics Regional Test Laboratory, Government of India, New Delhi having traceability to the National Physical Laboratory, New Delhi.
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