| Electrical specifications |
| Voltage range |
nominal 100 V to 500 V (85 V min to 550 V max) using safety plug input |
| Mains power |
nominal 100 V to 240 V (85 V min to 265 V max) using IEC 60320 C7 input |
| Power consumption |
Maximum 50 VA (max. 15 VA when powered using IEC 60320 input) |
| Standby Power |
<0.3 W only when powered using IEC 60320 input |
| Efficiency |
≥ 68.2 % (in accordance with energy efficiency regulations) |
| Mains frequency |
50/60 Hz ± 15 % |
| Battery power |
Li-ion 3.7 V, 9.25 Wh, customer-replaceable |
| On-battery runtime |
Up to 4 hr (up to 5.5 hr in energy saving mode) |
| Charging time |
<6 hr |
| Number of inputs |
4 (3 phases and neutral) |
| Maximum input voltage |
1000 Vrms (1700 Vpk) phase to neutral |
| Input impedance |
10 MΩ each phase to neutral |
| Bandwidth |
42.5 Hz to 3.5 kHz |
| Scaling |
1:1, variable |
| Number of inputs |
3, mode selected automatically for attached sensor |
| Current sensor output voltage |
Clamp |
500 mVrms / 50 mVrms; CF 2.8 |
| Rogowski coil |
150 mVrms/15 mVrms at 50 Hz, 180 mVrms/18 mVrms at 60 Hz; CF 4; all at nominal probe range |
| Bandwidth |
(-3 dB) 42.5 Hz to 3.5 kHz |
| Scaling |
1:1 and variable |
| Resolution |
16-bit synchronous sampling |
| Sampling frequency |
10.24 kHz at 50/60Hz, synchronized to mains frequency |
| Input signal frequency |
50/60 Hz (42.5 to 69 Hz) |
| Wiring configurations |
1-Φ, 1-Φ IT, Split phase, 3-Φ wye, 3-Φ wye IT, 3-Φ wye balanced, 3-Φ delta, 3-Φ Aron/Blondel (2-element delta), 3-Φ delta open leg, 3-Φ high leg delta, 3-Φ delta balanced. Currents only (load studies) |
| Data storage |
Internal flash memory (not user replaceable) |
| Memory size |
Typical 1 offline logging section of 1 week with 1 second intervals. The number of possible logging sessions and logging period depends on user requirements. |
| Measured parameters |
Voltage, current, frequency, THD V, THD A, power, power factor, fundamental power, DPF |
| Averaging interval |
1 s |
| Total harmonic distortion |
THD for voltage and current is calculated on 25 harmonics |
| Voltage |
Full cycle RMS (20 ms at 50 Hz, 16.7 ms at 60 HZ) |
| Current |
Half cycle RMS (10 ms at 50 Hz, 8.3 ms at 60 Hz) |
| Power |
200 ms |
| USB-A |
Firmware updates, max. supply current: 120 mA |
| Supported modes |
Direct connection and connection to infrastructure |
| Security |
WPA2-AES with pre-shared key |