MODEL 633: PHASOR METER

This complements the Model 632A, since the Model 633 reads phase angle, true rms voltage and true rms current in a circuit. This instrument is designed to demonstrate the properties of phasors and real/imaginary number notation for electrical engineering students. This instrument gives the phase displacement and magnitude of the parameter under investigation. The unit has filters to eliminate harmonic distortion affecting phase angle measurement.

The instrument has 500V and 50V voltage ranges and 10A and 1A current ranges plus a 500V range reference voltage input. Phase angle accuracy is typically 0.5° and voltage / current accuracy is 0.3% at 50 Hz, 20% distortion.