ST-2000Cos Portable Analog Power Factor Meter (PF meter) is used for measurement in single-phase and balanced threephase circuits. From a phase discriminating circuits, the output of the builtin transducer produces a DC proportional to the phase between voltage and current to operate the DC indicator.

Principle: Phase angle sensing transducer.
Rated Accuracy: ±3% phase angle.
Effective Power Factor Measuring Range: Lead 0.5 – 1.0 – 0.5 Lag.
Scale Length: Approx. 135mm(5-3/8”).
Frequency Influence: Within ±1.5° phase angle at 45 to 65Hz.
Scale:
- Power Factor：Lead 0 – 0.3 – 1.0 – 0.3 – 0 Lag.
- Power Angle： Lead 90° – 0° – 90° Lag.