STPM33 Key Features
- Active power accuracy
- < 0.1% error over 5000 : 1 dynamic range
- < 0.5% error over 10000 : 1 dynamic range
- Exceeds 50-60 Hz EN 50470-x, IEC 62053-2x, ANSI12.2x standard requirements for AC watt meters
- Reactive power accuracy
- < 0.1% error over 2000 : 1 dynamic range
- Dual mode apparent energy calculation
- Instantaneous and averaged power
- RMS and instantaneous voltage and current
- Under and overvoltage detection (sag and swell) and monitoring