| Power Quality Measurement Standards |
| Conformance | IEC 61999-1-4 Class 1, IEC 61000-4-30 Class A or B depending on measurement function, IEEE519, IEEE1159, IEEE1459 and EN50160 |
| Clock/Calendar | Leap years, 24-hour clock |
| Real-Time Clock Accuracy | Not more than ±1 s/day |
| Internal Memory Capacity for Data | At least 2 GB |
| Maximum Recording Period | At least 30 days |
| Measurement Time Control | Automatic |
| Maximum Number of Events | Limited only by the size of the internal memory |
| Power Requirements | 100 to 240 Vrms ±10%, 47 to 63 Hz, 40 W |
| Operating Time During Interruptions (Internal UPS Operation) | 5 minutes per interruption, 60 minutes total operating time without recharging |
| Input |
| Measurement Types | One Phase Plus Neutral, One Phase IT No Neutral, One Phase Split Phase, Three Phase Wye, Three Phase Delta, Three Phase IT, Three Phase High Leg, Three Phase Open Leg, 2 Element Delta, 21/2 Element Wye |
| Input Channels | - Voltage: 4 channels, AC/DC
- Current: 5 channels
|
| Voltage Channels | - Input resistance: 2 MΩ
- Input capacitance: <20 pF
|
| Current Input Characteristics | 2 Vrms = full scale, 1 MΩ Input Impedance for ferro CTs, low impedance for Flexi-CTs |
| Measuring Method | Simultaneous digital sampling of voltage and current. Digital PLL synchronized sampling, internal frequency reference used during voltage drops. |
| Synchronization and Sampling |
| PLL-Synchronization Source | The PLL synchronizes to the A-N voltage for wye power types, and to the A-B voltage for delta power types. All listed power types can be characterized as either wye or delta. |
| PLL Lock Range | 42.5 to 69 Hz |
| Sampling Frequency | Voltage and current: 256 samples/cycle Inter-harmonics per IEC 61000-4-7: 2 560 points/10 cycles (50 Hz), 3072 points/12 cycles (60 Hz) Transient Voltage: 5 MHz |
| A/D Resolution | - Voltage and current: 24 bits
- Transient voltage: 14 bits
|
| Voltage and Current Measurements |
| Voltage Measurement Range | - AC voltage: 1000 Vrms ±10% over range
- DC voltage: ±1000 V +10% over range
|
| Voltage Crest Factor | 3 or less |
| Current Measurement Range | Depends on current probe used |
| Current Crest Factor | 4 or less |
| RMS Voltage |
| Measurement Type | True RMS calculated continuously: every cycle, every 1/2 cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by IEC 61000-4-30. |
| Measurement Uncertainty | - AC: ±0.2% reading ±0.1% full scale, above 50 Vrms
- DC: ±0.5% reading ±0.2% full scale, above 50 VDC
|
| RMS Current |
| Measurement Type | True RMS calculated continuously: every cycle, every 1/2 cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by standards |
| Transient Voltage (Impulse) |
| Measurement Type | Waveshape sampling |
| Full Scale | 8000 V pk |
| Sample Resolution | 200 nS |
| Measurement Uncertainty | ±5% reading ±20 V (test parameters: 1000 VDC, 1000 Vrms, 100 kHz) |
| Voltage Swell (RMS Swell) |
| Measurement Type | True RMS (one cycle calculation by overlapping each half cycle - voltage between lines is measured for 3P3W lines and phase voltage is measured for 3P4W lines) |
| Displayed Data | Amplitude and duration of swell |
| Measurement | Same as rms voltage |
| Voltage Dip (RMS Sag) |
| Measurement Type | True RMS (one cycle calculation by overlapping each half cycle - voltage between lines is measured for 3P3W lines and phase voltage is measured for 3P4W lines) |
| Displayed Data | Amplitude and duration of dip or interruption |
| Measurement | Same as rms voltage |
| Voltage Dropout (Interruption) |
| Measurement Type | Same as voltage dip |
| LAN Interface |
| Connector | RJ-45 |
| Speed and Type | 10/100 Base-T, auto MDIX |
| Communications Protocol | TCP/IP over Ethernet |
| Wireless Controller Interface |
| Connection | Wireless (2.4 GHz radio) |
| Speed | Up to 700 kbit/second |
| Communications Protocol | Bluetooth SPP |
