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The Model PCS-2/B is a current-to-voltage calibrator or transconductance amplifier. The current output is directly proportional to the input voltages from a high accuracy AC or DC voltage standard. The input voltage to the unit can be AC or DC up to 1kHz.  The ratios of 10 volts to output is: 1:1, 1:0.1, 1:0.01, 1:0.001 and 1:0.0001.  The PCS-2/B is laboratory calibrated with instruments and load resistors traceable to N.I.S.T. (National Institute of Standards & Technology).  The unit is also equipped for rack mounting in a standard 19" rack.