Ohio Semitronics

Current Measurement

OSI offers single phase/three phase/split core/solid core current transducers using Hall Effect and Rogowski coils. Certifications include UL/CUL Class 1, Div 1 (Grp A,B,C,D) and ATEX.

Frequency

OSI frequency transducers provide an analog output which is proportional to the frequency of the input source.  Differences between various models are generally related to the width of the frequency range being measured and the instrument accuracy, the mounting style and certified agency approvals.

Multifunction Power

OSI multifunction instruments are designed to measure multiple electrical parameters simultaneously. Typically these parameters or "measurands" incude Voltage(s) L-L and L-N, Current on L1, L2 & L3, Power L-N and Total, VA L-N and Total, VARs L-N and Total, Frequency, Power Factor and Energy watthours. Outputs can be analog or combined analog and digital.  Displays can be either local or remote depending on the specific device chosen.

Power and Energy

OSI offers Watt, Watt-hour, VAR and VAR-hour transducers accurate regardless of variations in voltage, current, power factor or load. They are available in 1,2, 2.5 or 3 element configurations and can provide bi-directional operation.