OHIO SEMITRONICS PC5 Series Operation & Calibration Manual page 2

Preface to the PC5 Operation and Calibration Manual
By William D. Walden
Ohio Semitronics, Inc.
The PC5 Transducers
The PC5 series of transducers are true four quadrant multipliers for calculating electric power in watts.
The output signals are bi-directional. If the direction of power flow reverses as it may in a facility that has
co-generation, the sign of the output reverses. All PC5 watt transducers are calibrated at Ohio
Semitronics, Inc. using standards that are traceable to the National Institute of Standards and Technology
(NIST).
The PC5 series watt transducers are unique in that these Hall effect watt transducers do an excellent job
calculating power where severe distortion or chopped current and voltage wave shapes exist.
Watt transducers are available from Ohio Semitronics, Inc. in 1, 2, 2 ½, and 3 element versions and with
output signals of 0 to ±1 mADC, 0 to ±5 volts, 0 to ±10 volts DC, 4 to 20 mADC, or 4 to 12 to 20 mADC,
where 4 mADC represents negative full scale, 12 mADC represents 0, and 20 mADC represents positive
full scale. We are very flexible with this series. If you have special requirements, please contact us.
Mr. David W. Miller
David W. Miller is Vice President of Ohio Semitronics, Inc. He has been with the company since its
founding in 1964. Mr. Miller personally designed most of the transducers that Ohio Semitronics, Inc. is
presently manufacturing.